3953 datasheet(5/14 Pages) ALLEGRO

Part #	3953

Description	FULL-BRIDGE PWM MOTOR DRIVER

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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5 / 14 page

3953

FULL-BRIDGE

PWM MOTOR DRIVER

www.allegromicro.com

5

ELECTRICAL CHARACTERISTICS at TJ = 25˚C, VBB = 5 V to 50 V, VCC = 3.0 V to 5.5 V

(unless otherwise noted. )

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Thermal Shutdown Temp.

TJ

—

165

—

°C

Thermal Shutdown Hysteresis

∆TJ

—

8.0

—

°C

UVLO Enable Threshold

2.5

2.75

3.0

V

UVLO Hysteresis

0.12

0.17

0.25

V

Logic Supply Current

ICC(ON)

VENABLE = 0.8 V, VBRAKE = 2.0 V

—

42

50

mA

ICC(OFF)

VENABLE = 2.0 V, VMODE = 0.8 V

—

12

15

mA

ICC(Brake)

VBRAKE = 0.8 V

—

42

50

mA

ICC(Sleep)

VENABLE = VMODE = VBRAKE = 2.0 V

—

500

800

µA

Motor Supply Current

IBB(ON)

VENABLE = 0.8 V

—

2.5

4.0

mA

(No Load)

IBB(OFF)

VENABLE = 2.0 V, VMODE = 0.8 V

—

1.0

50

µA

IBB(Brake)

VBRAKE = 0.8 V

—

1.0

50

µA

IBB(Sleep)

VENABLE = VMODE = 2.0 V

—

1.0

50

µA

Logic Supply Voltage Range

VCC

Operating

3.0

5.0

5.5

V

Logic Input Voltage

VIN(1)

2.0

——

V

VIN(0)

——

0.8

V

Logic Input Current

IIN(1)

VIN = 2.0 V

—

<1.0

20

µA

IIN(0)

VIN = 0.8 V

—

<-2.0

-200

µA

VSENSE Voltage Range

VSENSE(3.3)

VCC = 3.0 V to 3.6 V

0

—

0.4

V

VSENSE(5.0)

VCC = 4.5 V to 5.5 V

0

—

1.0

V

Reference Input Current

IREF

VREF = 0 V to 1 V

——

±5.0

µA

Comparator Input Offset Volt.

VIO

VREF = 0 V

—

±2.0

±5.0

mV

Control Circuitry

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