A3959 Просмотр технического описания (PDF) - Allegro MicroSystems

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A3959

DMOS Full-Bridge PWM Motor Driver

Allegro MicroSystems 

A3959

DMOS Full-Bridge PWM Motor Driver

ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 50 V, VDD = 5.0 V, VSENSE = 0.5 V,

fPWM < 50 kHz (unless noted otherwise)

Characteristics

Output Drivers

Load Supply Voltage Range

Output Leakage Current

Output On Resistance

Crossover Delay

Body Diode Forward Voltage

Load Supply Current

Control Logic

Logic Supply Voltage Range

Logic Input Voltage

Logic Input Current

(all inputs except ENABLE)

Logic Supply Current

ENABLE Input Current

Internal OSC frequency

Reference Input Volt. Range

Reference Input Current

Comparator Input Offset Voltage

Symbol

Test Conditions

VBB

IDSS

rDS(on)

Operating

During sleep mode

VOUT = VBB

VOUT = 0 V

Source driver, IOUT = -3 A

Sink driver, IOUT = 3 A

VF

Source diode, IF = -3 A

Sink diode, IF = 3 A

fPWM < 50 kHz

IBB

Charge pump on, outputs disabled

Sleep mode

VDD

VIN(1)

VIN(0)

IIN(1)

IIN(0)

IDD

IIN(1)

IIN(0)

fOSC

VREF

IREF

VIO

Operating

VIN = 2.0 V

VIN = 0.8 V

fPWM < 50 kHz

Sleep mode

VIN = 2.0 V

VIN = 0.8 V

ROSC shorted to GROUND

ROSC = 51 kΩ

Operating

VREF = VDD

VREF = 0 V

Min. Typ.

9.5

–

0

–

–

<1.0

–

<-1.0

–

270

–

270

300 600

–

–

–

–

–

4.0

–

2.0

–

–

4.5

5.0

2.0

–

–

–

–

<1.0

–

<-2.0

–

6.0

–

–

–

40

–

16

3.25 4.25

3.65 4.25

0.0

–

–

–

–

±5.0

Max.

50

50

20

-20

300

300

1000

1.6

1.6

7.0

5.0

20

5.5

–

0.8

20

-20

10

2.0

100

40

5.25

4.85

VDD

±1.0

–

Units

V

V

μA

μA

mΩ

mΩ

ns

V

V

mA

mA

μA

V

V

V

μA

μA

mA

mA

μA

μA

MHz

MHz

V

μA

mV

Continued next page …

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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