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TLC6A598
  • TLC6A598
  • TLC6A598

TLC6A598

ACTIVE

High power 8-bit phase-shift high-reliability driver for avionic applications

Texas Instruments TLC6A598 Product Info

1 April 2026 1

Parameters

Number of channels

8

LED current per channel (mA)

350

LED configuration

Parallel

Program memory

No

Vin (min) (V)

3

Vin (max) (V)

5.5

Features

Enable/Shutdown, LED Open Detection, LED Short Detection, Thermal shutdown

Shutdown current (ISD) (typ) (µA)

300

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Package

SOIC (DW)-24-159.65 mm² 15.5 x 10.3

Features

  • High reliability and robustness for avionics application
  • Wide operating ambient temperature: –55ºC to +125ºC
  • 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 (maximum)
  • Protection
    • Overcurrent protection
    • Open and short load detection
    • Serial-interface communication-error detection
    • Thermal shutdown protection
  • Enhanced cascading for multiple stages
  • All registers cleared with single input
  • Cyclic redundancy check (CRC)
  • Low power consumption
  • 24-pin SOIC DW package
  • High reliability and robustness for avionics application
  • Wide operating ambient temperature: –55ºC to +125ºC
  • 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 (maximum)
  • Protection
    • Overcurrent protection
    • Open and short load detection
    • Serial-interface communication-error detection
    • Thermal shutdown protection
  • Enhanced cascading for multiple stages
  • All registers cleared with single input
  • Cyclic redundancy check (CRC)
  • Low power consumption
  • 24-pin SOIC DW package

Description

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.

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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