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TLE9743QK
  • TLE9743QK

TLE9743QK

Active and preferred

The TLE9743QK is an application specific PMIC for traction inverter with a sophisticated safety engine (ISL) capable of putting the system in a safe state in case of a µC fail. The safe state is decided by evaluating signals on 6 analog, 5 digital inputs, watchdogs, highly configurable integrated safety logic. Supports up to ASIL-D. Value proposition: BOM count, cost and space down.

Infineon Technologies TLE9743QK Product Info

16 April 2026 1

Parameters

Base Product

TLE9744QK

Classification

ISO 26262-compliant

Comments

Automotive Traction Inverter PMIC, Grade 1, Safety Features, integrated Safety Engine ISO 26262-compliant, 2 Buck/Boost PreReg, linear PostRegs (µC, COM, REF), 2 trackers, 6 analog inputs, 5 digital inputs and 4 digital outputs, Companion power IC for Aurix™ MCU and peripherals

Enable (=Inhibit)

Yes

Iout max

2400 mA, 75 mA, 150 mA, 150 mA, 240 mA, 800 mA, 2400 mA

Iq

50 µA

ISO 26262

ASIL-D

Operating Temperature range

-40 °C to 150 °C

Operating Voltage range

4 V to 36 V

Package

Yes

Qualification

Automotive

Regulator Type

Buck, Buck-boost

Reset

Yes

Target Application

Traction inverter, Safe Control

Tolerance

3 %, 2 %, 2 %, 1 %, 2 %, 2 %, 2.5 %

Watchdog

Functional-WD, Window-WD

Features

  • 2 x Buck-boost pre-reg. (5.95V, 10-16V)
  • LDO for µC, transceiver, ADC reference
  • 2 trackers for sensor supply
  • Configurable watchdogs (WWD, FWD)
  • Sophisticated safety engine (ISL)
  • Redundant supply input for ISL, tracker2
  • High voltage monitoring functions
  • 6 analog inputs for system evaluation
  • 5 digital inputs for system evaluation
  • 4 digital outputs for safe state control
  • 32-bit SPI with 8-bit CRC
  • ISO 26262 compliant up to ASIL D

Description

  • Reduced external components count
  • Reduced BOM cost
  • Reduced BOM space
  • Optimized system FuSa
  • Enables ASIL-D on system level
  • ISO 26262: Complete Documentation Set
  • Interoperable with AURIX™, EiceDRIVER™

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