3-Phase Brushless DC Motor Pre-Driver

A4936

2

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Description (continued)

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Unit

Load Supply Voltage

38

V

Motor Phase Output

–3

V

Hall Input

DC

–0.3 to 7

V

Logic Input Voltage Range

–0.3 to 7

V

Ambient Operating Temperature

Range M

–20 to 105

°C

Maximum Junction Temperature

150

°C

Storage Temperature

–40 to 150

°C

Selection Guide

Part Number

Packing*

Package

A4936MET-T

73 pieces per tube

32-pin QFN, 5 mm × 5 mm,

0.90 mm nominal overall height

A4936METTR-T

1500 pieces per reel

Characteristic

Symbol

Test Conditions*

Value

Unit

Package Thermal Resistance

(Junction to Ambient)

On 4-layer PCB based on JEDEC standard

32

ºC/W

Package Thermal Resistance

(Junction to Exposed Pad)

2

ºC/W

*Additional thermal information available on the Allegro website

Internal circuit protection includes thermal shutdown with hysteresis,

undervoltage lockout, and dead time protection. Special power-up

sequencing is not required. Operating temperature range is –20°C

to 105°C.

The device package is a 32-contact, 5 mm × 5 mm, 0.90 mm

nominal overall height QFN, with exposed pad for enhanced thermal

dissipation.This small-footprint package is lead (Pb) free, with 100%

matte tin leadframe plating.