Product details


Rating Automotive Operating temperature range (C) -55 to 125 Vin (Min) (V) 3 Vin (Max) (V) 5.5 Vout (Max) (V) 50 Features Enable/Shutdown, LED Open Detection, LED Shorted Detection, Thermal Shutdown open-in-new Find other Automotive LED drivers

Package | Pins | Size

SOIC (DW) 24 160 mm² 15.5 x 10.3 open-in-new Find other Automotive LED drivers


  • High reliability and robustness for avionics application
  • AEC-Q100 qualified for automotive applications
  • Wide VCC from 3 V to 5.5 V
  • Eight power DMOS transistor output channels
    • 350-mA continuous current
    • 1.1-A current limit capability
    • Output clamp voltage, 50 V
    • Low Rds(on), 1 Ω (typical)
    • Avalance energy, 90 mJ (typical)
  • Protection
    • Over current protection
    • Open / short load detection
    • Serial-interface communication-error detection
    • Thermal shutdown protection
  • Enhanced cascading for multiple stages
  • All registers cleared with single input
  • Low power consumption
  • Wide operating ambient temperature: –55ºC to 125ºC
  • 24-pin SOIC-DW package
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The TLC6A598 device is a monolithic, high-voltage, high-current power 8-bit shift register designed for use in systems that require relatively high load power, such as LEDs.

The device contains a built-in voltage clamp on the outputs for inductive transient protection. Power driver applications include relays, solenoids, and other high-current or high-voltage loads. Each open-drain DMOS transistor features an independent chopping current-limiting circuit to prevent damage in the case of a short circuit.

This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Outputs are low-side, open-drain DMOS transistors with output ratings of 50 V and 350-mA continuous sink-current capabilities. A built-in load open or load short diagnostic mechanism provides enhanced safety protection. The device provides a cycle redundancy check to verify register values in the shift registers. in read-back mode, the device provides 6 bits of the CRC remainder. The MCU can read back the CRC remainder and check if the remainder is correct to determine whether the communication loop between MCU and device is good.

The TLC6A598 characterization is for operation over the operating ambient temperature range of −55°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet TLC6A598 Power Logic 8-Bit Shift Register datasheet Jun. 25, 2021
User guide TLC6A598 Power Logic 8-Bit Shift Register Evaluation Module Jun. 25, 2021
Technical article Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical article LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical article Take better selfies with innovative LED flashes Nov. 18, 2014
Technical article Solving the automotive EMI issues in new cars with all the screens Sep. 11, 2014

Design & development

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Hardware development

document-generic User guide

The TLC6A598EVM helps you to evaluate the features of the Texas Instruments TLC6A598, power logic 8-Bit shift register. The TLC6A598EVM provides an eight-channel relays control example solution.

  • High reliability and robustness for various applications
  • AEC-Q100 qualified for automotive applications
  • Eight power DMOS transistor output channels with 350-mA current capability

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

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SOIC (DW) 24 View options

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