A3951 데이터 시트보기 (PDF) - Allegro MicroSystems

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A3951

FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems 

A3951SW

3951

FULL-BRIDGE

PWM MOTOR DRIVER

1 2 3 4 5 6 7 8 9 10 11 12

Dwg. PP-058-1

ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 50 V, VCC = 5.0 V,

VREF = 2.0 V, VSENSE = 0 V, RC = 20 kΩ/1000 pF to Ground (unless noted otherwise).

Limits

Characteristic

Symbol Test Conditions

Min. Typ. Max. Units

Output Drivers

Load Supply Voltage Range

Output Leakage Current

Output Saturation Voltage

Clamp Diode Forward Voltage

(Source or Sink)

Load Supply Current

(No Load)

VBB

ICEX

VCE(SAT)

VF

IBB(ON)

IBB(OFF)

IBB(BRAKE)

Operating, IOUT = ±2.0 A, L = 3 mH

VOUT = VBB

VOUT = 0 V

Source driver, IOUT = -0.5 A

Source driver, IOUT = -1.0 A

Source driver, IOUT = -2.0 A

Sink driver, IOUT = +0.5 A

Sink driver, IOUT = +1.0 A

Sink driver, IOUT = +2.0 A

IF = 0.5 A

IF = 1.0 A

IF = 2.0 A

VENABLE = 0.8 V, VREF = 2.0 V

VENABLE = VREF = 2.0 V

VBRAKE = 0.8 V

VCC

–

50

V

–

<1.0 50

µA

– <-1.0 -50 µA

–

0.9 1.2

V

–

1.0 1.4

V

–

1.2 1.8

V

–

0.9 1.2

V

–

1.0 1.4

V

–

1.3 1.8

V

–

1.0 1.4

V

–

1.1 1.6

V

–

1.4 2.0

V

–

2.9 6.0 mA

–

3.1 6.5 mA

–

3.1 6.5 mA

Continued next page …

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