A3953S Просмотр технического описания (PDF) - Allegro MicroSystems

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Компоненты Описание

производитель

A3953S

FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems 

3953

FULL-BRIDGE

PWM MOTOR DRIVER

5

RθJT = 6.0°C/W

4

3

SUFFIX 'B', R θJA = 43°C/W

2

1

0

25

SUFFIX 'LB', R θJA = 63°C/W

50

75

100

TEMPERATURE IN °C

125

150

Dwg. GP-049-2A

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

(unless otherwise noted.)

Characteristic

Power Outputs

Load Supply Voltage Range

Output Leakage Current

Sense Current Offset

Output Saturation Voltage

BRAKE = H

(Forward/Reverse Mode)

Output Saturation Voltage

BRAKE = L

(Brake Mode)

Clamp Diode Forward Voltage

(Sink or Source)

Symbol

VBB

ICEX

ISO

VCE(SAT)

VCE(SAT)

VF

Test Conditions

Operating, IOUT = ±1.3 A, L = 3 mH

VOUT = VBB

VOUT = 0 V

ISENSE - IOUT1, IOUT = 850 mA,

VSENSE = 0 V, VCC = 5 V

VSENSE = 0.4 V, VCC = 3.0 V:

Source Driver, IOUT = -0.85 A

Source Driver, IOUT = -1.3 A

Sink Driver, IOUT = 0.85 A

Sink Driver, IOUT = 1.3 A

VSENSE = 0.4 V, VCC = 3.0 V:

Sink Driver, IOUT = 0.85 A

Sink Driver, IOUT = 1.3 A

IF = 0.85 A

IF = 1.3 A

Min.

Limits

Typ. Max.

Units

VCC

—

50

V

—

<1.0

50

µA

—

<-1.0 -50

µA

22

33

38

mA

—

1.0

1.1

V

—

1.7

1.9

V

—

0.4

0.5

V

—

1.1

1.3

V

—

1.0

1.2

V

—

1.3

1.5

V

—

1.2

1.4

V

—

1.4

1.6

V

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