A3901SEJTR-T Allegro, A3901SEJTR-T Datasheet

A3901SEJTR-T

Manufacturer Part Number

A3901SEJTR-T

Description

Manufacturer

Allegro

Datasheets

1.A3901SEJTR-T.pdf (11 pages)

2.A3901SEJTR-T.pdf (11 pages)

3.A3901SEJTR-T.pdf (11 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A3901SEJTR-T

Manufacturer:

ALLEGRO

Quantity:

1 500

Company:

Meier Automation Equipment Co., Limited

Part Number:

A3901SEJTR-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

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Download datasheet (364Kb)

Features and Benefits

▪ Low R

▪ Full- and half-stepping capability

▪ Small package

▪ Forward, reverse, and brake modes for DC motors

▪ Sleep mode with zero current drain

▪ PWM control up to 250 kHz

▪ Crossover-current protection

▪ Thermal shutdown (TSD)

Package: 10 Contact DFN (suffix EJ)

3901-DS, Rev. 3

DS(on)

CPU

+VBAT

Figure 2. Typical dual DC motor control

10 µF

10 V

outputs

IN1

IN2

IN3

IN4

A3901

GND

VBB

Approximate Scale 1:1

OUT1

OUT2

OUT3

OUT4

Dual Full Bridge Low Voltage Motor Driver

CPU

+VBAT

Figure 1. Typical stepper motor control

10 µF

10 V

Typical Application

IN1

IN2

IN3

IN4

A3901

GND

VBB

Description

The A3901 is a dual full-bridge motor driver, designed for low

voltage portable applications involving bipolar stepper or brush

DC motors. The outputs have been optimized for low voltage

drop, with currents up to ±400 mA (±800 mA with outputs

paralleled) and an operating voltage range of 2.5 to 5.5 V.

The four inputs (IN1 to IN4) can control a bipolar stepper motor

in full- or half-step mode, or DC motors in forward, reverse,

or brake mode. The inputs can be PWMed for current or speed

control at frequencies up to 250 kHz.

Internal protection circuitry includes thermal shut down (TSD)

and crossover (shoot-through) protection.

The A3901 is supplied in a 3 mm x 3 mm x 0.75 mm nominal

height, 10-lead DFN package, with exposed thermal pad

(package “EJ”). This small footprint package is lead (Pb) free,

with 100% matte tin leadframe plating.

Figure 3. Typical single DC motor control (paralleled outputs)

OUT1

OUT2

OUT3

OUT4

+VBAT

CPU

10 µF

10 V

IN1

IN2

IN3

IN4

A3901

GND

VBB

OUT1

OUT2

OUT3

OUT4

A3901

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