New USB Type-C Data Line Overvoltage Protection IC from Kinetic Technologies Saves Power and Delivers Fastest Fault Response Time

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SAN JOSE, Calif., March 26, 2018 /PRNewswire/ — Power management leader, Kinetic Technologies, announced today the launch of KTU1001, the hi-speed USB dual SPDT switch with overvoltage protection. The KTU1001 reinforces the commitment Kinetic Technologies holds to port protection and further expands the company’s data line protection portfolio.

“USB Type-C brings many benefits to users; however, it creates many potential fault conditions for OEM designers to protect against. Protecting system ICs downstream from the USB port is critical, and the KTU1001 brings the market’s highest level of OVP protection,” says Kinetic Technologies Vice President David Nam. “The KTU1001 provides significant power savings compared to competing solutions, which is important for mobile devicesand the added benefit of ultra-fast fault OVP maintains safe voltages, even under fault conditions.”

USB Type-C Power Delivery can negotiate up to 20V, which creates potential destructive fault conditions if VBUS and neighboring pins are shorted. The KTU1001 operates from 2.7V to 5.5V with overvoltage fault protection up to 20V and surge rating up to 25V.

The KTU1001 only consumes 25A yet has ultra-fast 100ns response to overvoltage conditions. The overvoltage threshold is 4.8V (typ) and the reverse-blocking switches are rated at 6Ω, 4pF and >1GHz -3dB bandwidth. Logic controls include a dedicated enable pin, independent switch ON/OFF pins, and the device features an overvoltage fault flag output. The KTU1001’s low power consumption and ultra-small packaging make it ideal for USB interface switching and protection across smartphones, tablets, mobile devices, camcorders, digital cameras, electronics with service test modes, embedded mass storage, telecom equipment, and set-top boxes.

KTU1001 is available and shipping now. Visit Kinetic Technologies for more information.

Key product specifications:

  • For USB Hi-Speed (480Mbps) D+/D- or SBU1/2 signals
  • Operating Range: 2.7V to 5.5V
  • USB Hi-Speed Dual SPDT Switch/Multiplexer
    • Reverse blocking MOSFETs
    • >1GHz -3db Bandwidth
    • 6 Switch On-Resistance
    • 4.0pF Switch On-Capacitance
  • Overvoltage Protection
    • Ultra-fast response time: 100ns
    • Up to +20VDC
    • Surge Protection Up to +25V
    • OVP threshold: 4.8V (typ)
  • Low Quiescent Current: 25uA (typ)
  • /FLAG output overvoltage indicator
  • 1.17mm x 1.57mm WLCSP package
  • -40C to +85C Temperature Range

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog power and protection semiconductors across mobile, industrial, automotive and enterprise markets. We deliver protection solutions tolerant of real world fault conditions and make power management solutions smaller and more energy efficient. Kinetic Technologies has R&D centers in Silicon Valley and Asia, with worldwide operations, logistics and customer sales support. Visit Kinetic Technologies for more information.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

New Reset IC by Kinetic Technologies Extends Battery Life and Improves User Experienceall in a Tiny Package

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San Jose, Calif.  January 23, 2018   Power management leader, Kinetic Technologies, announced today the launch of the KTS1612, a two input, two output push-button reset IC with dual discharge paths and extremely low quiescent current in a tiny 1.5mm x 2.0mm UQFN package.

The KTS1612 operates over the 2.2 V to 5.5V supply voltage range, consuming less than 500nA (typ) of supply current at 4V, 80 percent lower than competing solutions, extending battery run time. This new solution generates a reset pulse for a factory-programmed reset timeout period after both manual reset inputs have been held logic-low for the factory-programmed setup period. The IC controls an optional external MOSFET, which is used to disconnect the battery from the system during shipping mode and system reset mode. The KTS1612’s dual discharge paths can power-cycle the system bus voltage and battery path during system reset unlike any industry solution of its kind.

“System designers face multiple problems with non-removable batteries,” says Erik Ogren, senior director of mobile in the Kinetic Technologies marketing group. “Battery discharge during shipping can create a poor experience when the user first attempts to power up their new device. Another problem affecting the user experience is when the operating system hangs, requiring a hardware reset, which is difficult to implement without a dedicated reset button. This solution solves both of these problems, and in a tiny package.”

The KTS1612 is available in Pb-free, fully green compliant, small 10-pin UQFN 2.0mm x 1.5mm package. Key applications include smartphones and tablets, wearables, portables, digital still cameras, video cameras, remote controls, Bluetooth speakers and GPS.

KTS1612 is available and shipping now.Visit Kinetic Technologies for more information about the KTS1612.

Product features include:

  • Operating Range: 2.2V-5.5V
  • Supply Current: 500nA typ (VDD = 4V)
  • Controls external MOSFET disconnect switch
  • Shipping mode disconnects embedded battery
  • Two pushbutton inputs, two reset logic outputs
  • Two pins to independently discharge two system voltages during reset
  • Low Quiescent Current: Max 1A in shipping mode

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. Kinetic Technologies develops application-specific products that solve protection and power management needs across smartphones, tablets and wearables, as well as serving a wide range of industrial, automotive and enterprise solutions. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

Kinetic Technologies Presents at 20th Annual Needham Growth Conference

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San Jose, Calif.  January 19, 2018   Kinetic Technologies Chief Executive Officer Kin Shum recently presented at the 20th Annual Needham Growth Conference in New York, NY on January 17, 2018. This invite-only event brought together more than 300 growth companies across a broad range of industriesfrom semiconductors and healthcare to entertainment and softwareto discuss industry trends in 2018 and beyond.

Visit Kinetic Technologies to learn more about the Silicon Valley-based power management leader and its innovative solutions.

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. Kinetic Technologies develops application-specific products that solve protection and power management needs across smartphones, tablets and wearables, as well as serving a wide range of industrial, automotive and enterprise solutions. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

New LCD Power Solution from Kinetic Technologies Increases Performance and Reduces Overall Size by 70 Percent

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San Jose, Calif.  January 9, 2018   Power management leader, Kinetic Technologies, is expanding its Display Power portfolio with the introduction of KTZ8850, a high efficiency step-up LED driver with dual output LCD bias power. The KTZ8850 offers higher efficiency and more programmability than competitors۪ discrete solutionsand in a smaller package that offers more than 70 percent savings in board space.

Senior Director of Mobile in the Kinetic Technologies Marketing group, Erik Ogren, says, “This is the latest addition to our extensive Display Power portfolio as we continue to focus on highly integrated solutions with a reduced footprint. KTZ8850 combines high efficiency and flexible configurations via an I2C compatible interface all in a tiny 2.5mm x 1.3mm package.”

The KTZ8850 combines the two main power functions required by the LCD panel, namely the LED backlight driver and the LCD panel bias, controlled from a single I2C address.

The LED backlight driver features a step-up converter with an integrated 40V low side power MOSFET, achieving a peak efficiency of 86 percent. The LED current can be programmed via the I2C compatible interface in 256-steps or via the PWM-dimming input, which achieves high accuracy across a wide dimming range that goes as low as 1 percent duty cycle at 30kHz.

The LCD bias driver section uses a single inductor and can support up to 80mA from each of the outputs, with peak efficiency up to 90 percent. The positive and negative voltage outputs and turn-on sequence are configurable via the I2C compatible interface. Output voltages from +/-4.0V to +/-6.3V can be programmed in 100mV steps.

Key applications for the new KTZ8850 include LCD bias and backlight LED drivers, which reach across smartphones, tablets, camcorders, digital cameras and more.

KTZ8850 is available and shipping now. Visit Kinetic Technologies for more information.

Product features include:

  • Pb-free Package: WLCSP-18 2.47×1.27mm
  • LED Backlight Driver
    • Drives up to 10 series LEDs or 2P8S LEDs
    • Backlight efficiency: up to 86 percent
    • Flexible dimming control
  • 256-step(8 bits) I2C compatible control or
  • PWM dimming frequency 5~100kHz, supporting 1 percent duty @ 30kHz
    • Programmable internal over voltage protection (default 36.5V)
  • LCD Bias Supplies
    • LCD bias efficiency: up to 90 percent
    • Wide dual output voltage range
  • Programmable +/-4.0V to +/-6.3V (100mV/step)
  • Output current up to 80mA
    • Programmable supply sequencing

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. Kinetic Technologies develops application-specific products that solve protection and power management needs across smartphones, tablets and wearables, as well as serving a wide range of industrial, automotive and enterprise solutions. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

Kinetic Technologies Addresses Qi Compliant Wireless Power at 2017 Wireless Power Consortium

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San Jose, Calif. November 22, 2017  The 2017 Wireless Power Consortium (WPC) Qi Developer Conference, held in San Francisco on November 16, brought more than 200 product developers from around the country together to discuss complex magnetic induction wireless power design. Kinetic Technologies System Architecture Director, Dave Wilson, shared the design flow and specific guidance to implement wireless power Receiver and Transmitter devices.

Wilson spoke to designing and building products in the course of two WPC sessions. He explained the basic technology challenges of wireless Receivers and Transmitters, and expanded on specific best practices and pitfalls to avoid, better enabling designers to achieve Qi compliance on the first attempt.

As a long-term, strong WPC participant, Wilson emphasized the specific issues this industry faces in designing and building products that could result in Qi compliance testing failures, product redesign, and sometimes disappointing experiences for end user customers. This was a great opportunity to share lessons learned from real product examples,” said Wilson. My goal is to reduce negative experiences and to continually improve the Qi compliance process at the industry level.”

WPC is building a knowledge base to assist developers working on Qi compliant wireless power products. WPC members can view Wilson۪s materials on the website:

www.wirelesspowerconsortium.com

Learn more about power management leader Kinetic Technologies at www.kinet-ic.com.

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

 

Kinetic Technologies Releases Highly Efficient, 13W Powered Device and DC-DC Controller for Power over Ethernet (PoE) Solutions

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San Jose, Calif. January 5, 2017 – Kinetic Technologies, a high-performance analog and mixed-signal semiconductor company focused on developing power management solutions for computing, consumer, industrial, and communications markets, today introduced the AS1114, a single chip, highly integrated power solution targeted at 13W PoE, Powered Devices, requiring high efficiency and small size.  The AS1114 is specifically designed to fully support IEEE Std. 802.3at Type 1 PDs, and enables customers to bring to market higher performance products including VoIP phones, IP security cameras and wireless LAN access points. The innovative silicon solution, built on standard HV CMOS technology, includes system-level circuitry for lower EMI emissions and robust surge protection, in addition to the PD controller functionality.

The AS1114 combines rectification and protection circuitry with a PD controller and a DC-DC controller. This high level of integration provides significant reliability and protection advantages, as well as simplifying the PoE PD design. The device provides seamless support for local power and over temperature protection.

The AS1114 also provides advanced power management through integration of a hot-swap switch and a DC-DC controller that operates from a switched input voltage and includes soft-start and current limiting functions. The DC-DC architecture is a current mode converter, which can be configured with external component changes for either fly-backor buck topologies to support non-isolated or isolated switching topologies.  The device is designed to provide a safe low impedance discharge paths directly back to the earth ground, resulting in superior reliability and circuit protection.

The AS1114 includes a series of platform tested circuit capabilities to assist system designers in providing solutions that meet or exceed the current regulatory and extreme environmental usages.

The AS1114 is a highly integrated PD product that addresses the needs of the high growth PoE market,” said Fred Greenfeld, Applications Director at Kinetic Technologies. A key requirement of PoE systems is immunity to overvoltage and surge events. The AS1114 is unique in addressing EMI and surge resilience, and by integrating the diode bridge and protection circuitry, it significantly increases the reaction time of protection devices and PHY immunity to over-voltage stress events. Integrating these components also substantially reduces board-to-board variation and increases overall manufacturability, providing the customer with time to market advantage, while saving overall system cost and maximizing system efficiency.”

The AS1114 is supplied in a QFN55-20, RoHS and Green Compliant package and is rated over the -40 degree C to +85 degree C industrial temperature range.

Key Features of AS1114

  • Fully supports IEEE Std. 802.3at Type 1 PDs
  • Complies with IEC 61000-4-2/3/4/5/6 requirements
  • Complies with IEC 60950 over-voltage protection requirements
  • Integrated rectification for superior high voltage protection
  • Integrated DC-DC controller provides superior EMI performance
  • Provides seamless support for local power
  • Over temperature protection

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

 

Kinetic Technologies Releases Dual Channel Camera Flash Driver ICs, with Independent LED Control

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San Jose, Calif.   December 16, 2016 – Kinetic Technologies, a high-performance analog and mixed-signal semiconductor company focused on developing power management solutions for computing, consumer, industrial, and communications markets, today introduced the KTD2688 and KTD2688A, both dual channel, high current LED Flash driver ICs, with independent channel control.  The KTD2688 and KTD2688A are specifically designed for driving high current, camera flash, LEDs used today in mid-to-high end Smartphones.

The KTD2688 and KTD2688A are the ideal power solution for high-power flash LEDs. Integrating a synchronous boost converter and two current sources, plus extremely flexible programming via I2C control, the KTD2688 and KTD2688A provide a very small total solution for use in feature rich Smartphones. To compliment the I2C interface, the KTD2688/88A also features hardware STROBE/TORCH pins for maximum control flexibility. The two integrated current sources are independently controlled, with both their on and off state, and current settings in either of three functioning Flash/Torch/IR modes can be programmed independently by the I2C interface. To conserve battery life when the Camera module is not in use, there is a HW enable pin that powers the KTD2688/88A down reducing the standby power.

In addition to the flexible control, the KTD2688 and KTD2688A have integrated many protection features, to prevent damage to the IC, the LEDs or the surrounding environment. These include, three programmable low voltage input protection modes to can prevent a system reset, when the LED Flash is initiated, if the battery is in a discharged state. Cycle-by-cycle input current limit protection, output over-voltage protection, LED fault (open or short) protection, flash timeout protection and thermal shutdown protection are also included.

High definition cameras have now become common place in today۪s mid-to-high-end Smartphones.” said Erik Ogren, Senior Director of Marketing at Kinetic Technologies, in a quest to differentiate their products in the marketplace, manufacturers are continually seeking to not only improve the image sensors and optics, but also the flash solution itself. “Today manufacturers use a variety of solutions consisting of multiple LED (up to four), in either all white or amber and white combinations. All these solutions require proprietary control algorithms to provide the best quality photograph without washing out the subject matter. To achieve this, precise independent control of the LEDs is required. The KTD2688 and KTD2688A, provide the necessary control to each channel providing 128 steps of LED current, whilst also shaping the rising and falling edges.”

The KTD2688 provides a maximum flash current of up to 1.5A per channel and up to 187.5mA in Torch mode. In Flash mode, the programmable safety timer has a timeout range of 10ms to 400ms. The KTD2688A features the same maximum flash current of 1.5A, but increases the Torch current to a maximum of 375mA and the safety timer range of 40ms to 1600ms.

The KTD2688/88A is supplied in a WLCSP-12, 1.3 x 1.57mm, RoHS and Green Compliant packages and are rated over the -40 degree C to +85 degree C temperature range.

Key Features of KTD2688/88A

  • High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
  • Two-channel independent current sources
    • Flash current up to 1.5A
    • Torch current up to 187.5mA (KTD2688) or 375mA (KTD2688A)
  • Flexible I2C interface programming plus hardware control
    • STROBE/TORCH control
    • Flash/Torch/IR modes
    • Independent LED on/off and current settings
    • Programmable ramp shape and time control
    • I2C fault read back
  • Comprehensive protection
    • Three input low voltage protection modes
    • Flash time-out protection up to 400ms (KTD2688) or 1.60s(KTD2688A)
    • LED open/short protection
  • LED cathode ground connection for improved thermal dissipation

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

Kinetic Technologies Releases Two Low-Resistance, Reverse-blocking, Slew-rate Controlled, Power Saving Load Switches

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San Jose, Calif. November 5, 2016 – Kinetic Technologies, a high-performance analog and mixed-signal semiconductor company focused on developing power management solutions for computing, consumer, industrial, and communications markets, today introduced the KTS1601 and KTS1605, reverse-blocking, slew-rate controlled load switches with extremely low on-resistance.  The KTS1601 and KTS1605 are ideal for use in single cell Lithium-ion battery-based equipment, including mobile phones, Smartphones, Tablets, wearables and other portable devices or any appliance operated from a fixed 3.3V or 5V supply, such as HDD or SSD.

The KTS1601 and KTS1605 are the first generation of slew-rate controlled load switches products from Kinetic, significantly improving the efficiency in battery powered electronics.  The KTS1601 and KTS1605 power saving load switches are inserted between the battery or supply voltage and a load, and only turned on when the load is required by the system, thereby minimizing the power drain. The KTS1601 and KTS1605 features a controlled soft-on slew rate of typical 2.7ms that limits the inrush current for designs with heavy capacitive loads and minimizes any resulting voltage droop at the power rails.

With an operating voltage range from 1.5V to 5.5V, the KTS1601 and KTS1605 features the lowest on-resistance, and quiescent current of any similar packaged device on the market today. At an input voltage of 3.3V, the KTS1601 and KTS1605 features 24m and 13.4m respectively, providing a low IN to OUT voltage drop, maximising the voltage to the load. Both products are reverse-blocking when OFF, ensuring there are no discharge paths from OUT to IN, should a load be powered from a dual supply. The KTS1601 can operate up to a continuous current of 2A and the KTS1605, 5A.

With more and more functions being added to portable products, the battery capacity is struggling to meet the consumers expected operating time,” said Phil Dewsbury, Senior Director of Product Marketing at Kinetic Technologies. “With operating currents of these functions approaching their minimum, designers must look elsewhere to extend the battery life. The KTS1601 and KTS1605 load switches, provide an additional means to save power, by shutting down, un-used functions in a Smartphone or other portable product, without compromising the reliability or operating parameters of the system.”

The KTS1601 and KTS1605 also features an internal pull-down resistor on the enable pin to ensure the device remains off, should the input enable be allowed to float. The KTS1601 and KTS1605 also have an active pull-down option, that is connected between the output and ground, to discharge any residual load voltage at the output, when the switch is off.

Both devices include over-temperature protection, and ESD compliance at the input to IEC61000-4-2 level 4 of 8kV Contact Discharge and 15kV Air Discharge and are rated over the -40 degree C to +85 degree C temperature range. The KTS1601 is supplied in a WLCSP-4, 1.0 x 1.0mm, while the KTS1605 is supplied in a WLCSP-6, 1.0mm x 1.5mm, both RoHS and Green Compliant packages.

Key Features of KTS1601/1605

  • Operating Range: 1.5V~5.5V
  • Low RDS(ON) MOSFET:
    • KTS1601 Typically 24m @ 3.3V
    • KTS1605 Typically 13.4m @ 3.3V
  • Continuous DC current up to 2A KTS1601 & 5A KTS1601
  • Built-in slew rate controlled turn-on: 2.7ms
  • Low operating quiescent current typically 8_A
  • ESD Protection
    • Compliance to IEC61000-4-2 Level 4
  • Contact Discharge : 8kV
  • Air Discharge : 15kV
  • Output Auto Discharge when Disabled option (-1)
  • RoHS and Green Compliant, Pb-Free Packages:
    • KTS1601 – WLCSP-4, 1.0 x 1.0mm
    • KTS1605 WLCSP-6, 1.0mm x 1.5mm
  • -40C to +85C Temperature Range

About Kinetic Technologies:

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

Kinetic Technologies Releases Two Surge Protected, Single Input, Dual Output Load Switches with OVP

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San Jose, Calif. September 5, 2016 – Kinetic Technologies, a high-performance analog and mixed-signal semiconductor company focused on developing power management solutions for computing, consumer, industrial, and communications markets, today introduced the KTS1678 and KTS1679-1, both single input, dual output, surge protected, load switches with selectable OVP.  The KTS1678 and KTS1679-1 are specifically designed for routing VBUS power to provide alternative functions in mid-to-high end Smartphones or Tablets.

Both the KTS1678 and KTS1679-1 consist of two very low resistance power switches configured as single input, dual output, change-over switch. The input to both switches is protected against VBUS surge voltages of up to 100V, and is also protected against over-voltage, on both the VBUS to OUT and VBUS to SYS paths, providing protection to downstream components from abnormal input conditions. The main switch (VBUS to OUT) features a unidirectional, 23m, active-LOW enabled 3.5A rated MOSFET, while the secondary switch (VBUS to SYS) is a reverse-blocking, 30m, active-HIGH enabled, 6.0A rated MOSFET. Both input switches are rated up to a maximum of 28V. The KTS1678 has a fixed OVP trip point of 13.9V 400mV for the VBUS to OUT switch, with an OVP trip point of 5.25V 250mV for VBUS to SYS switch. The KTS1679-1, replaces the SHDN pin (used to conserve power) with a SEL pin, giving the user the option to either select the VBUS to OUT OVP trip point to 10.4V 300mV by allowing the SEL pin to float or to 5.8V 200mV by tying the SEL pin to GND. This allows compatibility with many of the fast charging schemes, that use higher charging voltages. The VBUS to BAT OVP remains fixed at 5.8V 400mV.

When VBUS is greater than 2.7V, the KTS1678 POK LDO provides an always ON power source, regardless of the OVLO, EN1 and EN2 state, to power downstream components permitting operation without an installed battery.  In the KTS1679, the POK LDO is replaced by a battery voltage sense function (SNS), that switches off the charging current to the battery, if the battery voltage exceeds its maximum rating.

The introduction of the Type-C USB connector has provided Smartphone manufacturers with both an opportunity and a challenge said Phil Dewsbury, Senior Director of Product Marketing at Kinetic Technologies, while the Type-C connector offers the ability to handle a higher charging current, those manufacturers previously using an un-committed pin on the Micro-USB connector for test purposes, have to look for an alternative solution. The KTS1678 offers those manufacturers the opportunity to use the VBUS pin to directly route the tester to the system board, bypassing the integrated battery charger. Alternatively, the KTS1679-1 allows manufacturers using high current, direct charging adapters to directly access the battery terminals, safe in the knowledge that any over-charge will be detected by the integrated OVP circuitry.

The KTS1678 and KTS1679-1 are supplied in a WLCSP-28, 2.96 x 1.67mm, RoHS and Green Compliant packages and are rated over the -40 degree C to +85 degree C temperature range.

Key Features of KTS1678/KTS1679-1

  • Single Input, Dual Output Low On- Resistance Switch
    • VBUS to OUT: typ. 23m
    • VBUS to SYS: typ. 30m (Reverse Blocking)
  • Wide Input Voltage Range: 2.7V 13.5V
  • VBUS Abs Max: 28V
  • Surge and ESD Protected Input
    • Surge Protection
  • IEC61000-4-5: > 100V
    • ESD Protection
  • IEC61000-4-2 (Level 4) VBUS
  • Contact: 8kV
  • Air Gap: 15kV
  • HBM: 2kV All Pins
  • Integrated Over-voltage Protection (OVP)
    • KTS1678
  • VBUS to OUT: 13.9V 400mV
  • VBUS to SYS: 5.25V 250mV
    • KTS1679-1
  • VBUS to OUT: 10.4V 300mV or 5.8V 200mV
  • VBUS to SYS: 5.8V 200mV
  • Maximum Continuous Current
    • VBUS to OUT: 3.5A
    • VBUS to SYS: 6A
  • Dual Enable Control with Independent Shutdown Control
    • Active LOW VBUS to OUT
    • Active HIGH VBUS to SYS
  • VBUS to SYS/BAT FLAG
  • Over Temperature Protection
  • KTS1678 Only
    • Active HIGH Shutdown
    • VBUS detection LDO
  • KTS1679-1 Only
    • OVP Select
    • Battery OVP

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

Kinetic Technologies Releases Over-Voltage Protected, Slew-rate controlled, Load Switches

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San Jose, Calif. August 28, 2016 – Kinetic Technologies, a high-performance analog and mixed-signal semiconductor company focused on developing power management solutions for computing, consumer, industrial, and communications markets, today introduced the KTS1670 and KTS1671, slew-rate controlled load switches with over-voltage protection to protect battery operated systems from malfunctions due to charger faults.  The KTS1670 and KTS1671 are ideal for use in single cell Lithium-ion battery-based equipment, including mobile phones, Smartphones, Tablets, wearables and other portable devices for charging currents up to 3A.

The KTS1670 and KTS1671 are the latest in a family of Power Interface products from Kinetic, targeted to significantly increase safety and reliability in battery powered electronics.  The KTS1670 and KTS1671 are inserted between the power supply or charger source and the load to be protected. The over-voltage protection (OVP) switch features an ultra-low 60mΩ (typical) on-resistance MOSFET and protects low-voltage systems against voltage faults up to +28VDC. If the input voltage exceeds the overvoltage threshold, the internal MOSFET reacts within typically 100ns and is turned off to prevent damage to any downstream components connected to the output of the device. An 18ms debounce time built into the device delays the internal MOSFET turn on time to avoid false turn on due to faulty connectors or line perturbations.

The overvoltage protection threshold can be externally programmed with an optional resistor divider to set a threshold between 4V and 20V. With the OVLO input pin tied to GND (or below the external OVLO select voltage), the KTS1670 and KTS1671 automatically selects the internal OVLO threshold. The internal overvoltage threshold of the KTS1670 is preset to 6.05V typical and the KTS1671 preset to 6.15V for use with standard 5V adapter chargers or USB charging ports.  The KTS1670 is specifically targeted for adjustable applications, where a tighter voltage tolerance is required.

The surge requirements for portable products, being used in India and SE Asia, have now increased to such a level, that integrating the surge protection with OVP is not commercially viable۝ said Phil Dewsbury, Senior Director of Product Marketing at Kinetic Technologies. The KTS1670 and KTS1671 products, in conjunction with an external TVS diode, provide a low-cost input protection scheme, that can ensure that down-stream electronics are not damaged by either a high-voltage surge or an incorrect adapter charger being used۝.

The devices support a voltage input range of 2.5V to +28V, include over-temperature protection, over-voltage protection, and automatic recovery when the fault conditions are removed. Each of the devices are available in an extremely small 6-pin WLCSP package. The devices are rated over the -40 degree C to +85 degree C temperature range.

Key Features of KTS1670/1671

  • Operation up to +28V input
  • Enhanced ESD protection on VBUS compliant with IEC61000 4-2 (Level 4)
    • 8kV Contact Discharge
    • 15kV Air Dicharge
  • Fixed or adjustable Over-voltage protection
  • Low 60mΩ resistance
  • Small WLCSP6 package, 1.0mm x 1.2mm

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power management semiconductors for consumer, computing, industrial and communication markets. The company۪s product offering consists of integrated circuits that transform, regulate, deliver and monitor the power consumed by analog and digital semiconductors and other electronic loads. The company develops application-specific products to take care of the power management needs in devices such as mobile phones, smartphones, tablet computers, netbooks, GPS and MID, as well as serving a wide range of industrial, computing and communication product segments. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit http://www.kinet-ic.com/.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.