Texas Instruments TPS929160-Q1 16-Channel LED Driver
Texas Instruments TPS929160-Q1 16-Channel LED Driver comes with a FlexWire interface to address increasing requirements for individual control of each LED string. Each device channel can support analog dimming and pulse-width-modulation (PWM) dimming, configured through its FlexWire serial interface. The internal electrically erasable programmable read-only memory (EEPROM) allows users to configure the device during communication loss to fulfill system-level safety requirements.
The Texas Instruments TPS929160-Q1 controls the 8-bit output current and 12-bit PWM duty cycles. The device meets multiple regulation requirements with LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. A configurable watchdog also automatically sets FAIL-SAFE states when the MCU connection is lost, and with programmable EEPROM, TPS929160-Q1 can flexibly be set for different application scenarios.
Features
- AEC-Q100 qualified for automotive applications
- –40°C to +125°C, TA temperature grade 1
- 16-channel precision high-side current output
- Device supply voltage 4.5V to 40V
- LED supply voltage 4V to 36V
- Up to 100mA channel current set by resistor
- The 2-bit global, 6-bit independent current setting
- High-current accuracy < ±5% at 5mA to 100mA
- Low voltage drop 750mV at 100mA
- 12-bit independent PWM dimming
- Programmable PWM frequency up to 20kHz
- Phase-shift PWM dimming
- Ultra-low quiescent in sleep mode supported by EN and NSTB pin
- Linear and exponential dimming method
- FlexWire™ control interface
- Up to 1MHz clock frequency
- Maximum 16 devices on one FlexWire bus
- Up to 24 bytes of data transaction in one frame
- 5V LDO output to supply CAN transceiver
- Diagnostic and protection
- Programmable FAIL-SAFE state
- LED open-circuit detection
- LED short-circuit detection
- Single-LED short-circuit diagnostic
- Programmable low-supply detection
- Open-drain ERR for fault indication
- Watchdog and CRC for FlexWire interface
- 8-bit ADC for pin voltage measurement
- Overtemperature protection
Applications
- Automotive exterior rear light
- Automotive exterior headlight
- Automotive interior ambient light
- Automotive cluster display
Functional Block Diagram
Related Development Tool
Texas Instruments TPS929160EVM Driver Evaluation Module (EVM)
Helps the user evaluate the features of the TPS929160-Q1, an automotive 16-channel LED driver.
Published: 2023-05-09
| Updated: 2023-05-12