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www.infineon.com/flex
The Flex Multichannel Low-Side Switches family for
powertrain, safety and industrial applications is specially
designed to drive a various range of loads from relays,
injector valves, oxygen probe heaters and general purpose
solenoids, through to unipolar stepper motors. We oer a
complete family concept with full scalability from 2 to 18
channels and leading edge technology.
All Flex Multichannel Switches have full certification and
are equipped with embedded protection functions and
enhanced diagnosis which are used in numerous industry
platforms.
Smart Multichannel Switches
for Powertrain and Safety: Flex
Application

Engine management systems

Diesel direct injection

Gasoline direct injection

Multi port injection

Industrial applications
Features

Overvoltage protection
– Active clamping for inductive loads

Undervoltage protection
– Power-on reset
– Undervoltage shutdown

Overcurrent protection
– Current limitation
– Overcurrent switch-off

Overtemperature protection
– Thermal shutdown

Electrostatic Discharge (ESD) protection

Direct input control (for PWM)

Communication interface (control/diagnosis)
– Serial Peripheral Interface (SPI)
– Micro Second Channel (MSC)

5V and 3.3V µC compatibility

Status flag

2-bit diagnosis feedback for:
– Short-to-GND
– Open-load
– Short-to-battery
– Normal operation
Benefits

One family concept

Designed for dedicated applications, but also available
for o-the-shelf use as standard products

Integrated self-protection and diagnosis

Enhanced error detection for improved system reliability

Control via standard SPI Bus or MicroSecond Channel
(TLE8718SA) or direct inputs

Suitable for daisy-chain configuration to save I/O ports

Support of safety-critical applications by overvoltage
protection on all pins (TLE8718SA)

High quality ensured with automotive excellence
program on Zero Defect strategy
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