A3966SLBTR-T Allegro, A3966SLBTR-T Datasheet

A3966SLBTR-T

Manufacturer Part Number

A3966SLBTR-T

Description

Manufacturer

Allegro

Datasheets

1.A3966SLBTR-T.pdf (8 pages)

2.A3966SLBTR-T.pdf (9 pages)

3.A3966SLBTR-T.pdf (9 pages)

4.A3966SLBTR-T.pdf (9 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A3966SLBTR-T

Manufacturer:

ANAX

Quantity:

1 900

Company:

Meier Automation Equipment Co., Limited

Part Number:

A3966SLBTR-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

Current page: 1 of 8
Download datasheet (361Kb)

Features and Benefits

▪ ±650 mA continuous output current

▪ 30 V output voltage rating

▪ Internal fixed-frequency PWM current control

▪ Satlington® sink drivers

▪ User-selectable blanking window

▪ Internal ground-clamp and flyback diodes

▪ Internal thermal-shutdown circuitry

▪ Crossover-current protection and UVLO protection

Package: 16 pin SOICW (suffix LB)

Not to scale

29319.25H

+5 V

ENABLE

PHASE

+24 V

47 μF

0.5 Ω

Dual Full-Bridge PWM Motor Driver

Typical Application

REF

LOGIC

Dwg. EP-047-4A

Continued on the next page…

LOGIC

Description

The A3966 is designed to drive both windings of a two-phase

bipolar stepper motor. The device includes two full-bridges

capable of continuous output currents of ±650 mA and operating

voltages to 30 V. Motor winding current can be controlled by

the internal fixed-frequency, pulse-width modulated (PWM),

current-control circuitry. The peak load current limit is set

by user selection of a reference voltage and current-sensing

resistors.

The fixed-frequency pulse duration is set by a user-selected

external RC timing network. The capacitor in the RC timing

network also determines a user-selectable blanking window that

prevents false triggering of the PWM current-control circuitry

during switching transitions.

To reduce on-chip power dissipation, the full-bridge power

outputs have been optimized for low saturation voltages. The

sink drivers feature the Allegro

structure. The Satlington outputs combine the low voltage drop

of a saturated transistor and the high peak current capability

of a Darlington.

For each bridge, a PHASE input controls load-current polarity

by selecting the appropriate source and sink driver pair. For

0 1

0.5 Ω

PHASE

ENABLE

+5 V

patented Satlington

A3966

output

Related parts for A3966SLBTR-T

Related keywords

A3966SLBTR-T datasheet
A3966SLBTR-T data sheet
A3966SLBTR-T pdf datasheet
A3966SLBTR-T component
A3966SLBTR-T part
A3966SLBTR-T distributor
A3966SLBTR-T RoHS
A3966SLBTR-T datasheet download