3953_05 datasheet(5/15 Pages) ALLEGRO

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3953

FULL-BRIDGE

PWM MOTOR DRIVER

www.allegromicro.com

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.

—

165

—

°C

Thermal Shutdown Hysteresis

∆TJ

—

8.0

—

°C

UVLO Enable Threshold

2.5

2.75

3.0

UVLO Hysteresis

0.12

0.17

0.25

Logic Supply Current

ICC(ON)

VENABLE = 0.8 V, VBRAKE = 2.0 V

—

ICC(OFF)

VENABLE = 2.0 V, VMODE = 0.8 V

—

ICC(Brake)

VBRAKE = 0.8 V

—

ICC(Sleep)

VENABLE = VMODE = VBRAKE = 2.0 V

—

500

800

µA

Motor Supply Current

IBB(ON)

VENABLE = 0.8 V

—

2.5

4.0

(No Load)

IBB(OFF)

VENABLE = 2.0 V, VMODE = 0.8 V

—

1.0

µA

IBB(Brake)

VBRAKE = 0.8 V

—

1.0

µA

IBB(Sleep)

VENABLE = VMODE = 2.0 V

—

1.0

µA

Logic Supply Voltage Range

VCC

Operating

3.0

5.0

5.5

Logic Input Voltage

VIN(1)

2.0

——

VIN(0)

——

0.8

Logic Input Current

IIN(1)

VIN = 2.0 V

—

<1.0

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

—

0.4

VSENSE(5.0)

VCC = 4.5 V to 5.5 V

—

1.0

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

Control Circuitry

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