A3977(2013) 查看數據表（PDF） - Allegro MicroSystems

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A3977
(Rev.:2013)

Microstepping DMOS Driver with Translator

Allegro MicroSystems 

A3977

Microstepping DMOS Driver with Translator

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

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max. Units

Output Drivers (continued)

Thermal Shutdown Temp.

TJ

–

165

–

°C

Thermal Shutdown Hysteresis

UVLO Enable Threshold

∆TJ

VUVLO Increasing VDD

–

15

–

°C

2.45

2.7

2.95

V

UVLO Hysteresis

Logic Supply Current

∆VUVLO

IDD

fPWM < 50 kHz

Outputs off

0.05

0.10

–

V

–

–

12

mA

–

–

10

mA

Sleep mode

–

–

20

μA

* Operation at a step frequency greater than the specified minimum value is possible but not warranteed.

NOTES:

1. Typical Data is for design information only.

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

3. EG = ([VREF/8] – VSENSE)/(VREF/8)

Allegro MicroSystems, LLC

6

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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