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ATA6831 Datasheet(PDF) 1 Page - ATMEL Corporation

Part No. ATA6831
Description  Triple Half-bridge Driver with SP and PWM
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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ATA6831 Datasheet(HTML) 1 Page - ATMEL Corporation

 
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Features
Supply Voltage up to 40V
R
DSon Typically 0.8Ω at 25°C, Maximum 1.5Ω at 150°C
Up to 1.0A Output Current
Three Half-bridge Outputs Formed by Three High-side and Three Low-side Drivers
Capable of Switching Loads such as DC Motors, Bulbs, Resistors, Capacitors, and
Inductors
PWM Capability up to 25 kHz for Each High-side Output Controlled by External PWM
Signal
No Shoot-through Current
Very Low Quiescent Current I
S < 5 µA in Standby Mode over Total Temperature Range
Outputs Short-circuit Protected
Selective Overtemperature Protection for Each Switch and Overtemperature
Prewarning
Undervoltage Protection
Various Diagnostic Functions such as Shorted Output, Open Load, Overtemperature
and Power-supply Fail Detection
Serial Data Interface, Daisy Chain Capable, up to 2 MHz Clock Frequency
QFN18 Package
1.
Description
The ATA6831 provides fully protected driver interfaces designed in SOI technology.
They are used to allow a microcontroller to control up to 3 different loads in automo-
tive 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 inter-
nally 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 (protec-
tion against conducted interferences, EMC protection and 2-kV ESD protection) gives
added value and enhanced quality for exacting requirements of automotive
applications.
Triple
Half-bridge
Driver with SPI
and PWM
ATA6831
4908D–AUTO–09/06


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