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 |