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TLE 7233EM is a four channel low-side relay switch (1Ω per channel) in PG-SSOP-24-5 package providing embedded protective function. It is especially designed as a rely driver for automotive applicants. The 8 bit serial interface (SPI) is provided for control and diagnostics of the device and loads. The SPI interface provides daisy-chain capability The TLE 7233EM is equipped with an input pin that can be individually routed to the output control of each channel and therefore offer complete flexibility in design and PCB layout. The input multiplexer is controlled via SPI. The limp home pin (LHI) provides a simple use of the input pins; this enables a direct connection between the input pins and their corresponding outputs. The limp home function works under VDDA in order to ensure functionality even with a missing digital supply.

Summary of Features:

  • 4 channel low side relay driver
  • 8 bit SPI for diagnostics and control
  • SPI providing Daisy Chain Capability
  • Limp Home functionality
  • Very wide range for digital Supply Voltage
  • Four input pins provide flexible and straight forward PWM operation
  • Stable behavior at under voltage
  • Green product (RoHS complaint)
  • AEC Qualified


  • Less Microcontr. I/Os needed
  • Protection of load and device
  • Reduced PCB space
  • Improved reliability
  • less external components
  • Cost savings

Target Applications:

  • Body Control Modules
  • Door Modules
  • ECU's
  • Industrial Automation
  • Relay and solenoid drive
  • Stepper motor drive

Parametric TLE7233EM
Family   SPIDER
Channels   4.0 
RDS (on)    (max) 1.0Ω  (2.2Ω)
VDD   3.0-5.5 V
VDS(CL)  min  max 41.0V  54.0V
ID (multiple)   390.0 mA
ID(lim)  min 0.5A 
Quiescent Current  max 10.0µA
Configurable Channels   N/A
PWM Inputs   4.0 
Overload shutdown   Yes
Over Current Protection   Shutdown
Undervoltage Shutdown   Yes
Short GND Detection   Yes
Open Load Detection   Off
Open Load Disable Function   Yes
Standby Mode   Yes
Limp Home Feature   Yes
Cranking mode   No
SPI   8.0Bit 
Daisy-Chain Capability   Yes
Operating Temperature  min  max -40.0°C  150.0°C
Mounting   SMT

Data Sheet

Title Size Date Version
933 KB 19 Aug 2016 01_20
Sales Product Name TLE7233EM
Product Status active and preferred
Order online
Package Name PG-SSOP-24
Completely lead free yes
Halogen free yes
RoHS compliant yes
Packing Size 2500
Packing Type TAPE & REEL
Moisture Level 3

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