The ATA6832 is a fully protected driver IC specially designed for high temperature
applications. In mechatronic solutions, for example turbo charger or exhaust gas recirculation
systems, many flaps have to be controlled by DC motor driver ICs which are
located very close to the hot engine or actuator where ambient temperatures up to
150°C are usual. Due to the advantages of SOI technology junction temperatures up
to 200°C are allowed. This enables new cost effective board design possibilities to
achieve complex mechatronic solutions.
The ATA6832 is a triple half-bridge driver to control up to 3 different loads by a microcontroller
in automotive and industrial applications. Each of the 3 high-side and 3
low-side drivers is capable of driving currents up to 1.0A. Due to the enhanced PWM
signal (up to 25 kHz) it is possible to generate a smooth control of, for example, a DC
motor without any noise. The drivers are internally connected to form 3 half-bridges
and can be controlled separately from a standard serial data interface, enabling all
kinds of loads, such as bulbs, resistors, capacitors and inductors, to be combined.
The IC design especially supports the application of H-bridges to drive DC motors.
Protection is guaranteed with respect to short-circuit conditions, overtemperature and
undervoltage. Various diagnostic functions and a very low quiescent current in
standby mode enable a wide range of applications. Automotive qualification (protection
against conducted interferences, EMC protection and 2-kV ESD protection) gives
added value and enhanced quality for exacting requirements of automotive
applications.