Dual Full-Bridge PWM Motor Driver

A3966

2

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

each bridge, an ENABLE input, when held high, disables the output

drivers. Special power-up sequencing is not required. Internal circuit

protection includes thermal shutdown with hysteresis, ground-clamp

and flyback diodes, and crossover-current protection.

The A3966 is supplied in a 16-lead plastic wide SOIC with two pins

internally fused to the die pad for enhanced thermal dissipation.These

pins are at ground potential and need no electrical isolation. The

device is lead (Pb) free, with 100% matte tin leadframe plating.

Description (continued)

Pin-out Diagram

Selection Guide

Part Number

Packing

Ambient Temperature Range

(°C)

A3966SLBTR–T

1000 pieces / reel

–20 to 85

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Units

Load Supply Voltage

30

V

Logic Supply Voltage

7.0

V

Input Voltage

V

Sense Voltage

1.0

V

Output Current*

Peak

Output current rating may be limited by duty

cycle, ambient temperature, and heat sinking.

Under any set of conditions, do not exceed the

±750

mA

Continuous

±650

mA

Package Power Dissipation

Board Standardization for Measuring Junction-to-Ambient

Thermal Resistance of Semiconductor Packages.

1.87

W

Operating Ambient Temperature

Range S

–20 to 85

ºC

Maximum Junction Temperature

150

ºC

Storage Temperature

–55 to 150

ºC

GROUND

GROUND

LOAD

SUPPLY

REFERENCE

LOGIC

SUPPLY

RC

LOGIC

LOGIC

1

2

3

14

15

16

6

0

1

7

11

9

8

RC

4

5

V

REF

13

12

V

BB

V

CC

V

BB