Due to their portability, battery-operated, tablet platforms require diverse power conversion due to multiple features and functions that operate simultaneously along with a large LCD display backlight. Since these devices are primarily battery powered, good power conversion efficiency is necessary to extend operating times between charging cycles. As with all portable products, internal circuit board component density and height requirement force the smallest solution sizes for power management devices. Kinetic Technologies offers solutions to meet the required small footprint and the high functionality tablets need for lighting, display, camera flash, DC/DC power conversion and over-voltage and surge protection IC switches.
Buck and Boost Converters
Tablet operating systems typically use highly integrated system power management ICs. However, not all voltages are available and in some point of load applications, such as camera modules or Wi-Fi/Bluetooth transceiver modules, circuitry is located some distance away from the centralized PMIC and require local regulation.
- Point of load voltage regulators provide a local supply rail with high efficiency
- Single output high efficiency DC/DC switching regulators can provide either a step-up or step-down voltage output
Part Number | Description |
KTB8330 | 3A, 2.4MHz, Low-Voltage, I2C Programmable Buck Regulator |
KTB8371 | 4.7V to 17V Input, 5A Synchronous Buck Regulator with I2C Interface |
KTB8372 | 4.7V to 18V Input, 5A Synchronous Buck Regulators with AOT Control |
KTB851 | 600mA Step-down Converter with Output Load Discharge |
KTC2110 | 3.0Mhz High Efficiency, Low IQ Synchronous Boost Converter |
KTC2110A | 3.0MHz High Efficiency Low IQ Synchronous Boost |
KTC2115 | 2.5MHz 1.5A High Efficiency Low IQ Synchronous Boost |
KTZ8701 | 6-Channel PMIC with 2 Buck Converters and 4 LDOs |
KTZ8812 | +/- Dual Output DC/DC Converter |
Camera LED Flash Drivers
Product Highlights:
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- Many Tablets today incorporate digital camera modules for video recording features.
Camera lighting flash LED applications have a wide range of are mainly determined by camera resolution, quality and functionality.
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- Low cost / low resolution cameras may only require a single flash LED with a simple driver
- High-resolution smartphone cameras require multiple high brightness flash LEDs that support video and torch modes
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Product Highlights:
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- Single low current, low noise linear or boost flash LED drivers
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- Multi-channel high efficiency flash LED drivers that can support independent programmable LED torch and flash modes, with drive currents up to 1.5A per channel
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Part Number | Description |
KTD2681 | Flash LED Driver with Programmable 1.5A Current Source |
KTD2682 | 2MHz, 2-Ch 1.5A+0.75A Flash LED Driver |
KTD2683B | 2MHz, 3-Ch 1.5A+0.75A+0.3A Flash LED Driver |
KTD2684 | 2MHz, 2-Ch 1.5A+1.0A Flash LED Driver |
KTD2686 | 2MHz, 3-Ch 1.5A+1.0A+0.5A Flash LED Driver |
KTD2688 | 2MHz, 2-Ch 1.5A+1.5A Flash LED Driver |
KTD2688A | 2MHz, 2-Ch 1.5A+1.5A Flash LED Driver |
KTD2690 | Single Flash LED Driver with Programmable 1.5A Current Source |
KTD2691 | Inductorless, Single Flash LED Driver with Programmable 1.5A Current |
KTD2692 | 2MHz, 1.5A Flash LED Driver |
KTD2694 | 2MHz, 1.5A Flash LED Driver |
GPIO
Kinetic Technologies’ general-purpose input/output (GPIO) technology is low voltage and offers general purpose expanders designed for microcontrollers when additional I/Os are needed, ensuring additional interconnections are kept to a minimum.
As an input, the expander programs the polarity, latch, pull-up, pull-down and interrupt functions. For a system with noisy input, our GPIO technology also provides a seamless debounce function with programmable debounce time. Working as an output, this technology can program output stage with bank/pin selectable push-pull or open-drain options, and can also program four drive strengths of the output stage to optimize rise/fall times.
GPIO technology is the perfect fit for tablets.
Part Number | Description |
KTS1620 | Low Voltage 24-Bit I2C-bus I/O Expander |
KTS1622 | Low Voltage 16-Bit I2C-bus I/O Expander |
LCD Backlight LED Drivers
Tablets LCD display backlights require multiple white LEDs that have large displays that consume the most significant portion of the device battery power budget. LEDs are normally connected in series and therefore require a compliance voltage significantly higher than the battery voltage.
- Panel size and resolution determine the number of white LEDs (WLED) required to produce the necessary screen brightness
- Dimming techniques to control the brightness can range from simple linear LED brightness control to sophisticated high efficiency PWM control to achieve contrast ratios of typically 20,000:1
- High accuracy current sinks to provide uniform backlight across larger panel sizes
- High efficiency boost power conversion required to minimize demands on battery power consumption and maximize the battery life between charge cycles
Product Highlights:
- Multiple series/parallel strings of WLED drivers to match the display panel needs
- Multiple programming options from simple PWM signal control to full-featured I2C interfaces.
- Advanced design, low drop-out current sinks with tight linearity characteristics to maintain constant LED current accuracy over all battery voltage extremes
- High efficiency boost converters with integrated protection against LED open and short-circuit conditions
Part Number | Description |
KTD2505R | Step-Up LED Driver with ExpressWire or PWM Control |
KTD2511C | Step-Up LED Driver with PWM Control |
KTD2511D | Step-Up LED Driver with PWM Control |
KTD3112 | High Efficiency Step-Up 2-Ch LED Driver, 25V OVP |
KTD3113 | High Efficiency Step-Up 3-Ch LED Driver, 25V OVP |
KTD3116-1 | High Efficiency Step-Up 2-Ch LED Driver, 31V OVP |
KTD3117-1 | High Efficiency Step-Up 3-Ch LED Driver, 31V OVP |
KTD3137 | High Efficiency 3-Channel LED Backlight with Panel Flash Function |
KTD3156 | 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming |
KTD3156B | 6-Ch Step-Up LED Driver with PWM-Control Mixed-Mode Dimming, low duty dimming |
KTZ8864 | High Efficiency 4-CH LED Backlight Driver with Dual LCD Bias Power |
KTZ8866 | High Efficiency 6-CH LED Backlight Driver with Dual LCD Bias Power |
Overvoltage and Surge Protection ICs
Battery powered portable platforms like Tablets, require switches to protect external input power ports used for operation and battery charging and to control internal load circuits.
Input power port protection is a paramount concern in tablet design, as reliable power sources may not always be used.
- Over-voltage, and surge protected load switches protect battery charge management and operating tablet circuits, by breaking the connection between the power source and the internal circuitry, in the event the device is connected to a faulty power source or subjected to an abnormal stress condition.
Product Highlights:
- Programmable and fixed over-voltage protection (OVP) shutdown thresholds.
- Input protection
- Wrong adapter up to +40V
- Reverse voltage down to -6V
- Transient voltage protection up to 200V, compliant to IEC61000-4-2 (Level 4)
- ESD protection compliant to ±8kV contact, ±15kV air gap and ±2kV human body model.
- Single or dual devices with Uni or Bi-directional blocking
Integrated load switches provide internal power switching and are controlled by simple GPIO logic.
- Eliminate the need for bias and level shift circuits associated with discrete MOSFET switches
- Provides slew-rate limited turn-on with reverse current blocking and output discharge mode to de-select functions when not required to extend battery life.
Product Highlights:
- Extremely low IN to OUT resistance
- Tiny footprint
- Operation down to 1.8V
Part Number | Description |
KTS1601 | SRC P-Ch Load Switch with Reverse Blocking |
KTS1605 | SRC P-Ch Load Switch with Reverse Blocking |
KTS1605-1 | SRC P-Ch Load Switch with Reverse Blocking and Output Discharge |
KTS1612 | Dual-Input Push Button Reset IC with Two Discharge Paths |
KTS1613 | Dual-Input Push Button Reset IC |
KTS1650B | 4.5 Amp Overvoltage Protection IC with Surge Protection |
KTS1656 | Surge Protected, Single Input, Dual Output Load Switch Protection with OVP |
KTS1662 | Adjustable Overvoltage Protection Switch |
KTS1663 | Load Switch with fixed and adjustable OVP |
KTS1668 | 100V Surge Protected OVP Switch, with sense output |
KTS1670 | Adjustable Over-Voltage Protection Switch |
KTS1671 | Load Switch with fixed and adjustable OVP |
KTS1675 | Overvoltage Protector with Bidirectional Blocking and Surge Protection |
KTS1675A | Overvoltage Protector with Bidirectional Blocking and Surge Protection |
KTS1676 | Over-voltage Protector with Bidirectional Blocking and Surge Protection |
KTS1677A | Low RON Load Switch with Overvoltage and Reverse Blocking Protection |
KTS1678B | OVP Switch with Single Input, Dual Output Switches with Surge Protection and Individual Enables |
KTS1678C | Surge Protected, Single Input, Dual Output Load Switch with OVP |
KTS1679-1 | OVP Switch with Single Input, Dual Output Switches with 10V Surge Protection, Individual Enables, Selectable OVP & BAT SNS pin |
KTS1680 | 100V Surge Protected OVP Switch |
KTS1680A | 100V Surge Protected OVP Switch |
KTS1680C | 100V Surge Protected OVP Switch |
KTS1681 | Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function |
KTS1681A | 4 Amp Overvoltage Protection IC with Sense Output |
KTS1682 | Ultra-Fast 100V Surge Protected OVP Switch, with VDET output and MIC function |
KTS1686 | Ultra-Fast 100V Surge Protected OVP Switch, with Bidirectional Blocking |
KTS1688 | OVP Switch with Reverse Blocking and Current Limiting |
KTS1690A | USB VBUS ISOURCE Load Switch with Current Limit Control |
KTS1693 | 110V Surge Protected OVP Load Switch with OCP |
KTS1696A | 7ARMS VBUS Current-Sink Protection Load Switch |
KTS1698 | 5ARMS VBUS Current-Sink Protection Load Switch |
KTS1898 | 5ARMS 28V VBUS Current-Sink Protection Load Switch |
PoE PD Controllers
Part Number | Description |
KTA1140 | IEEE 802.3bt-Compliant, Powered Device Interface Controller |
RGB LED Drivers
Multicolor RGB LEDs are often incorporated into tablet designs as function indicator lamps or for fashion lighting.
- RGB LED drivers allow simplified programmable control of LED color and brightness
Product Highlights:
- 3-channel RGB LED drivers permit custom color control
- 4-channel RGBW devices allow for driving a white LED in addition to the RGB LED
- I2C to ease integration with a wide variety of processors and operating systems
- Wide range of ramp up/down timing for slow fade in/out effects and complex repeating patterns
- Ultra-small package footprint
Part Number | Description |
KTD2026 | 3-Channel RGB LED Driver with I2C Control |
KTD2027 | 4-Channel RGBW LED Driver with I2C Control |
KTD2037 | 3-Channel RGB LED Driver with I2C Control, AutoBlinQ™ |
USB Data Line Protection ICs
Part Number | Description |
KTU1000 | USB Hi-Speed Switch with Fault Protection |
KTU1001 | USB D+/D- Hi-Speed or SBU1/2 Switch with Fault Protection |
KTU1001A | USB D+/D- Hi-Speed or SBU1/2 Switch with Fault Protection |
KTU1101 | USB Type-C Port Protector for CC and SBU Pins |
KTU1108 | USB Type-C Protector for CC Pins |
KTU1120 | USB Type-C Port Protector for CC and SBU Pins |
KTU1121 | USB Type-C Port Protector for CC and SBU Pins |
KTU1121A | USB Type-C Port Protector for CC and SBU Pins |
KTU1125 | USB Type-C/PD Port Protector |
KTU1128 | USB Type-C 28V EPR Port Protector for CC and SBU Pins |
KTU1131 | USB Type-C Port Protector for CC, SBU and D+/- Pins |