A3979 datasheet(5/15 Pages) ALLEGRO

Part #	A3979

Description	Microstepping DMOS Driver with Translator

PDF	15 Pages

Scroll/Zoom	100%

Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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5 / 15 page

DMOS Microstepping Driver with Translator

A3979

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

1Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for

individual units, within the specified maximum and minimum limits.

2Negative current is defined as coming out of (sourcing from) the specified device pin.

3EG = ([VREF/8] – VSENSE)/(VREF/8).

ELECTRICAL CHARACTERISTICS, continued at TA = 25°C, VBB = 35 V, VDD = 3.0 to 5.5 V (unless otherwise noted)

Thermal Shutdown Temperature

TJSD

–

165

–

°C

Thermal Shutdown Hysteresis

TJSDHYS

–15–

°C

UVLO Enable Threshold

VUVLO

Increasing VDD

2.45

2.7

2.95

UVLO Hysteresis

VUVLOHYS

0.05

0.10

–

Characteristics

Symbol

Test Conditions

Min.

Typ.1

Max.

Units

A3979 Datasheet(PDF) 5 Page - Allegro MicroSystems