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TLD1173-1ET
  • TLD1173-1ET

TLD1173-1ET

Active and preferred

The TLD1173-1ET is a single-channel, low-side driver IC for controlling LEDs up to 400 mA as a linear current sink. It maximizes current driving with a power shift feature, offers integrated diagnostics and configurable fault management for enhanced reliability and performance in high-current applications.

Infineon Technologies TLD1173-1ET Product Info

16 April 2026 1

Parameters

Control Inputs

1

Family

LITIX™ Basic +

Green Product

Yes

Halogen-free

Yes

Open Load Detection

Yes

Operating Temperature range

-40 °C to 150 °C

Output Channels

1

Output Current per channel range

5 mA to 400 mA

Parallelized Output Current

400 mA

Planned to be available until at least

2039

Power Offloading

Yes

PWM engine

No

PWM

Yes

Short Circuit Protection

Yes

Short GND Detection

Yes

Single LED short detection

No

Tolerance

4%

Topology

Linear

VQ (multiple)

36 V

VS range

4.5 V to 36 V

Features

  • High output current up to 400 mA
  • Offload power via external resistor
  • 1-fail-all-OFF and 1-fail-all-ON support
  • Analog output current control
  • Open load, short to battery protections
  • Thermal shutdown protection
  • Intelligent fault management
  • Common error network sharing
  • Thermal derating function
  • External NTC resistor for derating

Description

  • Drive high currents
  • Improve thermal performance
  • Reduce PCB space

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