AuTOMOTIve & ConTrol
Dual Triple DMOS Output Drivers
with Serial Input and PWM Control
T6819, ATA6829, ATA6831
The T6819/ATA6829/ATA6831 are fully protected driver interfaces designed in smart power BCDMOS tech-
nology. They are used to control different loads by a microcontroller in automotive and industrial applications.
Each driver of the T6819/ATA6829 is freely configurable and can be PWM controlled separately from a standard
serial data interface. The power stages of the ATA6831 are combined to 3 half bridges. Due to the ATA6831’s
enhanced PWM signal of up to 25 kHz, the DC motor control is carried out without any audible noise caused
by the PWM signal. All kinds of loads such as bulbs, resistors, and inductors can be combined.
OUT3H
OUT2H
OUT1H
Watchdog
Watchdog
T6819, ATA6829
ATA6831
High-side
Switch
High-side
Switch
High-side
Switch
INH
DI
Charge
Pump
Power-on
Reset
16-bit SPI
DO
Logic Control
PWM
CS
Micro-
controller
Micro-
controller
CLK
PWM
Logic Control
DI
DO
16-bit SPI
Charge
Pump
Power-on
Reset
High-side
Switch
High-side
Switch
High-side
Switch
CS
CLK
Protection:
Short circuit
Open Load
Overtemperature
Undervoltage
Protection:
Short circuit
Open Load
Overtemperature
Undervoltage
Low-side
Switch
Low-side
Switch
Low-side
Switch
Low-side
Switch
Low-side
Switch
Low-side
Switch
Voltage
Regulator
Voltage
Regulator
VCC
VCC
OUT3L
OUT2L
OUT1L
OUT3
OUT2
OUT1
Features
n Supply Voltage up to 40V
Benefits
n no Shoot-through Current
n T6819/ATA6829: 3 High-side and 3 low-side
Drivers Usable as Single outputs or Half Bridges
n ATA6831: 3 Half Bridges
n Selective overtemperature Prewarning and
Protection for Each Switch
n PWM Capability for Each output Controlled by
External PWM Signal
n output Currents up to 1A/1.5A
n Various Diagnostic Functions
n SPI up to 2 MHz Clock Frequency
n So16/QFn18 Power Package with Heat Slug
n ATA6831: Enhanced PWM Frequency of
up to 25 kHz for noise Elimination
n Capability to Control 3-phase Motors
Applications
DC Motor Control Systems
n Various Automotive and Industrial Applications
Such as Flap Control or light Dimming
The IC design especially supports the application
of H-bridges to drive brush/brushless DC motors.
Protection is guaranteed regarding short-circuit
conditions, overtemperature and undervoltage.
n Switches all Kinds of loads Such as
DC Motors, Bulbs, resistors and Inductors
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