Datasheet
2Atmel ATA6826C [DATASHEET]
9213D–AUTO–09/12
1. Description
The Atmel
®
ATA6826C is a fully protected Triple Half-bridge designed in Smart Power SOI Technology, used to control up to
three different loads by a microcontroller in automotive and industrial applications.
Each of the three high-side and three low-side drivers is capable of driving currents up to 1.0A. The drivers are internally
connected to form three half-bridges and can be controlled separately from a standard serial data interface. Therefore, all kinds
of loads such as bulbs, resistors, capacitors and inductors can be combined. The IC design especially supports the application
of H-bridges to drive DC motors.
Protection is guaranteed regarding short-circuit conditions, overtemperature and undervoltage. Various diagnostic functions
and a very low quiescent current in standby mode opens a wide range of applications. Automotive qualification gives added
value and enhanced quality for exacting requirements of automotive applications.
Figure 1-1. Block Diagram
DI
CLK
INH
DO
CS
UV
protection
Serial interface
Input register
Output register
H
S
3
L
S
3
H
S
2
L
S
2
H
S
1
L
S
1
S
R
R
O
C
S
n.n. n. n.n.n.
P
S
F
O
P
L
S
C
D
n.
u.
H
S
3
L
S
3
H
S
2
L
S
2
H
S
1
L
S
1
T
P
OUT3
VS
VCC
Thermal
protection
Control
logic
Power-on
reset
Charge
pump
OUT2
OUT1
n.n.
u.
GND
n.
u.
n.
u.
n.
u.
n.
u.
n.
u.
u. u. u. u. u. u. u.
3
11
1
7
8
14
212
13
5
6
4
10
9
GND
GND
GND
Fault
detect
Fault
detect
Fault
detect
Fault
detect
Fault
detect
Fault
detect