ATA6837-PXQW 19

ATA6837-PXQW 19 Datasheet


Atmel ATA6837

Part Datasheet
ATA6837-PXQW 19 ATA6837-PXQW 19 ATA6837-PXQW 19 (pdf)
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Atmel ATA6837

High Temperature Hex Half-bridge Driver with Serial Input Control

DATASHEET
● Six half-bridge outputs formed by six high-side and six low-side drivers ● Capable of switching all kinds of loads such as DC motors, bulbs, resistors,
capacitors and inductors ● RDSon typically at 25°C, maximum at 200°C ● Up to 650-mA output current ● Very low quiescent current IS < 20µA in Standby Mode ● Outputs short-circuit protected ● Overtemperature prewarning and protection ● Undervoltage protection ● Various diagnosis functions such as shorted output, open load, overtemperature
and power supply fail ● Serial data interface ● Operation voltage up to 40V ● Daisy chaining possible ● Serial interface 5V compatible, up to 2MHz clock frequency ● QFN24 package

The ATA6837 is 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 and 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 Atmel ATA6837 is a fully protected hex half-bridge driver, used to control up to 6 different loads by a microcontroller in automotive and industrial applications.

Each of the six high-side and six low-side drivers is capable of driving currents up to 650mA. The drivers are internally connected to form 6 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 especially supports the application of Hbridges to drive DC motors.

Protection is guaranteed in terms of short-circuit conditions, overtemperature and undervoltage. Various diagnosis functions and a very low quiescent current in standby mode make a wide range of applications possible.

Automotive qualification referring to conducted interferences, EMC protection and ESD protection gives added value and enhanced quality for the exacting requirements of automotive applications.

Figure Block Diagram QFN24

DI 19

CLK 18

CS 17

INH 12

DO 13

S OH L H L H L H L H L H L S SC LSSSS SSS S SS S R I T D6 6 5 4 3 2 1 R

Input register Ouput register

Serial interface

P I S H L H L H LH L H L H L T S NC S SS S P F HD 6 5 4 43 3 2 1

Charge pump
3, 4 VS

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect

Fault Detect
11 OUT1
8 OUT2
5 OUT3
2 OUT4
23 OUT5
20 OUT6
Ordering Information

Extended Type Number ATA6837-PXQW

Package QFN24

Remarks Taped and reeled, Pb-free

Package Information

Package QFN 24 - 5 x 5 Exposed pad x acc. JEDEC OUTLINE No. MO-220 Dimensions in mm Not indicated tolerances

Drawing-No. Issue 1;
19 18
13 12
nom.
technical drawings according to DIN specifications

Atmel ATA6837 [DATASHEET] 16

History
4953H-AUTO-03/12
• Section “Short-circuit Protection” on page 7 changed
4953G-AUTO-03/11
• Section “Application Notes” on page 15 changed
4953F-AUTO-02/10
• Section 7 “Electrical Characteristics” numbers and on page 10 changed
4953E-AUTO-09/09
• Section 7 “Electrical Characteristics” number on page 9 added
• Features on page 1 changed
• Table 2-1 “Pin Description QFN24” on pages 3 to 4 changed
• Section 4 “Abs.Max.Ratings” on page 8 changed
• Section 5 “Thermal Resistance” on page 8 changed
4953D-AUTO-10/08
• Section 6 “Operating Range” on page 8 changed
• Section 7 “Electrical Characteristics” numbers to and to on pages 9 to 10 changed
• Section 8 “Serial Interface Timing” on page 12 changed
• Section 9 “Noise and Surge Immunity” on page 16 changed
• Section 11 “Ordering Information” on page 14 changed
4953C-AUTO-09/07
• Section 7 “Electrical Characteristics” numbers and on page 10 changed
• Section 9 “Noise and Surge Immunity” on page 14 changed
4953B-AUTO-07/07
• Put datasheet in a new template
• Section 7 “Electrical Characteristics” numbers and on pages 9 to 11 changed

Atmel ATA6837 [DATASHEET] 17

Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel +1 408 441-0311 Fax +1 408 487-2600

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Datasheet ID: ATA6837-PXQW 19 519225