TLE75008-ESD 8-Channel Low-Side Driver IC – SPI-Controlled Relay & Solenoid Driver for BCM and HVAC

The TLE75008-ESD is an eight-channel low-side power switch designed for driving small loads in automotive body control and HVAC systems.

It is particularly suited for controlling relays, solenoids, LEDs, and unipolar stepper motors found in wiper, lighting, and climate control modules .

This driver IC communicates via a 16-bit Serial Peripheral Interface (SPI) running at up to 5 MHz, enabling efficient device configuration and real-time diagnostics .

Each of the eight output channels features a typical on-state resistance of 1Ω, supporting continuous load currents up to 330mA per channel .

The device includes two direct/PWM input pins with input mapping functionality, allowing direct control of outputs without SPI intervention .

A built-in fail-safe mode (Limp Home) ensures continued operation even when the digital supply voltage is unavailable, maintaining critical functions during system faults .

Comprehensive protection features include short-circuit protection, overcurrent latch-off, and thermal shutdown to safeguard both the IC and connected loads .

Advanced diagnostic capabilities include open-load detection at OFF state, output status monitoring, and latched fault reporting via SPI registers .

The device supports cranking operation down to 3.0V battery voltage, ensuring reliable performance during engine start events .

It is AEC-Q100 qualified, confirming its suitability for the stringent reliability demands of automotive electronic systems .

With its very low quiescent current in sleep mode, the TLE75008-ESD is an excellent choice for power-sensitive modules that require minimal battery draw when idle .

This chip is widely used in Body Control Modules, HVAC controllers, and power distribution units where multiple low-side loads need to be driven with high reliability and diagnostic feedback .