Set-top box and home audio equipment have a wide array of power management requirements from display backlighting, function indicator lamps, load switching and voltage regulation. These products typically operate from line driven AC/DC supplies with voltage rails that need power distribution control and regulation at the point of load.


Buck and Boost Converters

Set-top box and audio products AC/DC power supplies do not always provide specific voltage rails needed by application circuits. A voltage regulators allow device main voltage rails to be stepped up or down at the point of load for specific application circuits.

  • For light load current requirements, a dual output linear regulator provide a compact low cost voltage regulation solution.
  • When high power conversion efficiency is desired, a DC/DC switching regulator can be a better choice. DC/DC switching regulators are available for voltage step-up and step-down applications.
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
KTB851-1 600mA Step-down Converter
KTC2110 3.0Mhz High Efficiency, Low IQ Synchronous Boost Converter
KTC2110A 3.0MHz High Efficiency Low IQ Synchronous Boost
KTZ8701 6-Channel PMIC with 2 Buck Converters and 4 LDOs
KTZ8812 +/- Dual Output DC/DC Converter

EMI/ESD Suppression

The AS1602 is an integrated ESD and Common Mode EMI suppression IC used to improve EMC performance in Ethernet applications. It is built around Kinetic Technologies’ patented and proprietary Active EMC suppression technology to enable “Design for Compliance” approach to system design right from the start. This product helps eliminate EMC compliance challenges by providing consistent EMC performance and improvements utilizing silicon based technology as opposed to passive technologies. The AS1602 enables system designers to comply with:

  • CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions.
  • IEC 61000-4-3/6 requirements for Radiated and Conducted Immunity, Level 3 or higher.
  • IEC 61000-4-2 ESD (Air Discharge) of ±25kV.
  • IEC 61000-4-2 ESD (Contact Discharge) of ±12kV.
  • Cable Discharge Event (CDE) of ±12kV.
Part Number Description
KTA1550 Dual-channel Active Choke for EMI Suppression w/ Integrated ESD Protection
KTA1552 Quad Channel Active EMI & ESD Suppressor for Ethernet Applications

GPIO

Part Number Description
KTS1622 Low Voltage 16-Bit I2C-bus I/O Expander

LCD Backlight LED Drivers

Set-top box LCD displays require LED backlighting. White LEDs are used for color displays and monochrome displays use fixed color LEDs.

  • Display backing power management solutions provide necessary voltage conversion for given LED strings and brightness control.
  • White LED (WLED) backlight driver solutions range from simple linear LED brightness control to sophisticated high efficiency WLED array drivers to cover most LCD panel sizes available today.
  • Programming options cover simple PWM signal control to full-featured I2C interfaces.
Part Number Description
KTD2500 Step-Up LED Driver with ExpressWire or PWM Control
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
KTD2801 Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
KTD2801A Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
KTD2801B Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming
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

Overvoltage and Surge Protection ICs

Set-top box and Audio products often need internal voltage rail on/off control to reduce standby or shutdown state power consumption or to enable/disable specific function circuits while the device is operating.

  • Integrated load switches provide simplified microcontroller I/O controlled power switching to eliminate the need for bias and level shift circuits associated with discrete MOSFET switches.
  • Load switches also provide slew rate limited turn on and shutdown mode reverse current blocking.
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
KTS1640 Load Switch with OVP and Reverse Polarity Protection
KTS1641 Load Switch with OVP and Reverse Polarity Protection
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
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

RGB LED Drivers

Set-top box and audio equipment use multicolor RGB LEDs for function indicator lamps. Indicator lamps show power on or signal connection conditions on devices that use LCD displays. For devices without displays, indicator lamps are needed to show power and all device function status.

  • RGB LED drivers allow simplified programmable control of LED color and brightness in an ultra small footprint package device.
  • Kinetic Technologies’ devices feature a wide range of ramp up/down timing for slow fade in/out effects and complex repeating patterns.
  • 3-channel RGB LED drivers permit customer 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.
Part Number Description
KTD2026 3-Channel RGB LED Driver with I2C Control
KTD2027 4-Channel RGBW LED Driver with I2C Control
KTD2061, KTD2058, KTD2059, KTD2060 36-Channel RGB LED Driver with I2C Control
KTD2064A, KTD2064B 24-Channel RGB LED Driver with I2C Control

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
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