3953_05 datasheet(3/15 Pages) ALLEGRO

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3953

FULL-BRIDGE

PWM MOTOR DRIVER

www.allegromicro.com

100

125

150

TEMPERATURE IN

°C

Dwg. GP-049-2A

= 6.0

°C/W

θJT

SUFFIX 'B', R

= 43

°C/W

θJA

SUFFIX 'LB', R

= 63

°C/W

θJA

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

Load Supply Voltage Range

VBB

Operating, IOUT =

±1.3 A, L = 3 mH

VCC

—

Output Leakage Current

ICEX

VOUT = VBB

—

<1.0

µA

VOUT = 0 V

—

<-1.0

-50

µA

Sense Current Offset

ISO

ISENSE - IOUT1, IOUT = 850 mA,

VSENSE = 0 V, VCC = 5 V

Output Saturation Voltage

VCE(SAT)

VSENSE = 0.4 V, VCC = 3.0 V:

BRAKE = H

Source Driver, IOUT = -0.85 A

—

1.0

1.1

(Forward/Reverse Mode)

Source Driver, IOUT = -1.3 A

—

1.7

1.9

Sink Driver, IOUT = 0.85 A

—

0.4

0.5

Sink Driver, IOUT = 1.3 A

—

1.1

1.3

Output Saturation Voltage

VCE(SAT)

VSENSE = 0.4 V, VCC = 3.0 V:

BRAKE = L

Sink Driver, IOUT = 0.85 A

—

1.0

1.2

(Brake Mode)

Sink Driver, IOUT = 1.3 A

—

1.3

1.5

Clamp Diode Forward Voltage

IF = 0.85 A

—

1.2

1.4

(Sink or Source)

IF = 1.3 A

—

1.4

1.6

Continued next page…

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