Datasheet > A3909_16

A3909_16

更新时间： 2022-02-26 14:00:24

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
10页	313K
描述
Dual Full Bridge Motor Driver

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A3909_16 数据手册

A3909

Dual Full Bridge Motor Driver

Description

Features and Benefits

• Low R_DS(on)outputs

The A3909 is a dual full bridge motor driver, designed for

12 V medium power applications. The outputs are rated for

operation through a power supply range of 4 to 18 V, and

capable of up to 1 A per phase.

• Drives two DC motors or single stepper motor

• Low power standby (Sleep) mode with zero current drain

• Thermal shutdown protection

• Parallel operation option for 1.8 A, single DC motor

• Overcurrent protection:

Paralleling the outputs is possible for higher amperage single

DC motor applications.

▫ Output to supply short

▫ Output to GND short

▫ Output load short

Thefourinputs(IN1toIN4)cancontrolDCmotorsinforward,

reverse, brake, and coast modes, or a bipolar stepper motor in

full- and half-step modes.

TheA3909issuppliedina10-pinMSOPpackagewithexposed

thermal pad (suffix LY) and a 10-pin SSOP (suffix LN) for

wave solder applications. Both packages are lead (Pb) free

with 100% matte-tin leadframe plating.

Packages:

10-pin MSOP

with exposed thermal pad

10-pin SSOP

(LN package)

(LY package)

Not to scale

Functional Block Diagram

Load Supply

VBB

Control

Logic

IN1

IN2

OUT1

OUT2

OUT1

OUT2

TSD

UVLO

OCP

Disable

VBB

GND

VBB

Control

Logic

IN3

IN4

OUT3

OUT4

OUT3

OUT4

TSD

UVLO

OCP

Disable

VBB

GND

PAD

Configuration

for driving

2 DC motors

Configuration

for parallel operation

at 1.8 A

LY package

A3909-DS

12 3 4 5 6 7...10

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