ATA6831-PIQW

ATA6831-PIQW Datasheet


and Power-supply Fail Detection<br>• Serial Data Interface, Daisy Chain Capable, up to 2 MHz Clock Frequency<br>• QFN18 Package

Part Datasheet
ATA6831-PIQW ATA6831-PIQW ATA6831-PIQW (pdf)
Related Parts Information
ATA6831-PISW ATA6831-PISW ATA6831-PISW
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• Supply Voltage up to 40V
• RDSon Typically at 25°C, Maximum 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 IVS < 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

Triple Half-bridge Driver with SPI and PWM

ATA6831

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 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.

Figure Block Diagram

CLK 5

PWM 6

O OP P H L H L H L S LH L H L H L S SS S R I C D3 3 2 1 3 2 1 R

Input register Ouput register

Serial interface

P I O n. n. n. n. n. n. H L H L H L T

S N V u. u. u. u. u. u. S P
3 2 21 1

Fault detector

Fault detector

Fault detector

Control logic

Fault detector

Fault detector

OUT3S OUT3F
13 OUT2S

Fault detector

Thermal protection

OUT2F OUT1S
15 OUT1F

Charge pump

VS1 11

UV protection

Power on reset
9 VCC
8 GND
14 GND
17 GND
18 GND
2 ATA6831
Ordering Information

Extended Type Number ATA6831-PIQW ATA6831-PIPW ATA6831-PISW

Package QFN18, 4 mm x 4 mm QFN18, 4 mm x 4 mm QFN18, 4 mm x 4 mm

Package Information

Remarks Taped and reeled, Pb-free Taped and reeled, Pb-free Tubes, Pb-free

Package VQFN_4 x 4_18L Exposed pad x Dimensions in mm

Not indicated tolerances

Pin 1 identification

Top 18

Bottom

Z nom.

Drawing-No. Issue 1;

Z 10:1
technical drawings according to DIN specifications

History
4908G-AUTO-07/10
• Section Open-load Detection on page 6 changed
• Section 8 “Electrical Characteristics” numbers and on pages
10 to 11 changed.
• Section 8 “Electrical Characteristics” numbers 4.12a, 4.13a and on pages 10 to 11 added.
4908F-AUTO-02/10
• Section 5 “Thermal Resistance” on page 8 changed
4908E-AUTO-06/07
• Put datasheet into the newest template
• Package drawing changed
• Block diagram changed
• Pin description table changed
• El. Char. table rows and changed
• El. Char. table row deleted
• Application circuit drawing changed
4908D-AUTO-09/06
• Features on page 1 changed
• Figure 1-1 “Block Diagram” on page 2 changed
• Section 2 “Pin Configuration” on pages 2 to 3 changed
• Section 4 “Absolute Maximum Ratings” on page 8 changed
• Section 8 “Electrical Characteristics” on pages 9 to 11 changed
• Section 9 “Serial Interface Timing” on page 12 changed
• Figure 10-1 “Application Circuit” on page 14 changed
• Section 11 “Ordering Information” on page 15 changed
• Section 12 “Package Information” on page 15 changed
4908C-AUTO-08/06
• Title on page 1 changed
• Features on page 1 changed
• Figure 1-1 “Block Diagram” on page 1 changed
• Figure 2-1 “Pinning” on page 3 changed
• Table 2-1 “Pin Description” on page 3 changed
• Table 3-2 “Output Data Protocol” on page 5 changed
• Section “PWM Mode” on page 7 added
• Section 4 “Absolute Maximum Ratings” on page 8 changed
• Section 8 “Electrical Characteristics” on pages 9 to 12 changed
• Figure 10-1 “Application Circuit” on page 14 changed
• Section “Application Notes” on page 14 changed
• Section 11 “Ordering Information” on page 15 changed
• Section 12 “Package Information” on page 15 changed
16 ATA6831

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Datasheet ID: ATA6831-PIQW 519218