Brand Name Texas Instruments
Model Number TPS929120QPWPRQ1
Minimum Order Quantity 1
Price Based on current price
Packaging Details anti-static bag & cardboard box
Delivery Time 3-5 work days
Payment Terms T/T
Supply Ability In stock

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Product Details
Type DC DC Regulator Topology Step-Down (Buck), Step-Up (Boost)
Internal Switch(s) Yes Number Of Outputs 12
Voltage - Supply (Min) 4.5V Voltage - Supply (Max) 40V
Voltage - Output 4.75V ~ 5.25V Current - Output / Channel -
Frequency 10kHz ~ 2MHz Dimming PWM
Applications Automotive Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount Package / Case 24-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package 24-HTSSOP
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10kHz IC LED Driver


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Product Description


Product Details


12-channel automotive 40-V high-side LED driver with FlexWire interface

General Description

With increasing demand for animation in automotive lighting, LEDs must be controlled independently. Therefore, LED drivers with digital interfaces are essential to effectively drive pixel-controlled lighting applications. In exterior lighting, multiple lamp functions are typically located on different PCB boards with off-board wires connected to each other. It is difficult for a traditional single-ended interface to meet the strict EMC requirements. By using an industrial-standard CAN physical layer, the UART-based FlexWire interface of the TPS929120-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929120-Q1 is a 12-channel, 40-V high-side LED driver that 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, TPS929120-Q1 can flexibly be set for different application scenarios.




  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 12-Channel precision high-side current output:
    • Supply voltage 4.5 V to 40 V
    • Up to 75 mA channel current set by resistor
    • 2-Bit global, 6-bit independent current setting
    • High current accuracy < ±5% at 5 mA to 75 mA
    • High current accuracy < ±10% at 1 mA
    • Low voltage drop 500 mV at 50 mA
    • 12-Bit independent PWM dimming
    • Programmable PWM frequency up to 20 kHz
    • Linear and exponential dimming method
  • FlexWire control interface
    • Up to 1-MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 8 bytes data transaction in one frame
    • 5-V 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



Attribute Attribute Value
Manufacturer Texas Instruments
Product Category LED Drivers
Series Automotive, AEC-Q100
Type DC DC Regulator
Package-Case 24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Frequency 10kHz ~ 2MHz
Operating-Temperature -40°C ~ 125°C (TA)
Mounting-Type Surface Mount
Applications Automotive
Number-of-Outputs 12 Outputs
Internal-Switch-s Yes
Topology Step-Down (Buck), Step-Up (Boost)
Supply Voltage 40V
Voltage-Supply-Min 4.5V
Voltage-Output 4.75V ~ 5.25V
Dimming PWM
Package Tape & Reel (TR)