A4952ELYTR-T Allegro Microsystems Inc, A4952ELYTR-T Datasheet

A4952ELYTR-T

Manufacturer Part Number

A4952ELYTR-T

Description

IC PWM MOTOR DVR FULL 10-MSOP

Manufacturer

Allegro Microsystems Inc

Datasheets

1.A4952ELYTR-T.pdf (11 pages)

2.A4952ELYTR-T.pdf (11 pages)

Specifications of A4952ELYTR-T

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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with exposed thermal pad

Features and Benefits

• Low R

• Overcurrent protection (OCP)

• Low Power Standby mode

• Adjustable PWM current limit

• Synchronous rectification

• Internal undervoltage lockout (UVLO)

• Crossover-current protection

• Fault output (A4952 only)

• Selectable retry (A4952 only)

Packages:

A4952-DS

▫ Motor short protection

▫ Motor lead short to ground protection

▫ Motor lead short to battery protection

8-pin SOICN

(LJ package)

DS(on)

outputs

A4952 only

RTRY

FLTn

VREF

GND

IN1

IN2

INT

with exposed thermal pad

Not to scale

10-pin MSOP

(LY package)

Functional Block Diagram

Full-Bridge DMOS PWM Motor Drivers

Control

Logic

Disable

OSC

Description

Designed for pulse width modulated (PWM) control of DC

motors, the A4952 and A4953 are capable of peak output

currents to ±2 A and operating voltages to 40 V.

Input terminals are provided for use in controlling the speed and

direction of a DC motor with externally applied PWM control

signals. Internal synchronous rectification control circuitry is

provided to lower power dissipation during PWM operation.

Internal circuit protection includes overcurrent protection,

motor lead short to ground or supply, thermal shutdown with

hysteresis, undervoltage monitoring of V

current protection.

The A4952 is provided in a low-profile 10-pin MSOP package

(suffix LY) and the A4953 is provided in a low-profile

8-pin SOICN package. Both packages have an exposed

thermal pad, and are lead (Pb) free, with 100% matte tin

leadframe plating.

UVLO

TSD

Charge

Pump

A4952 and A4953

Load Supply

OUT1

OUT2

VBB

LSS

, and crossover-

(Optional)

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