A3949(2013) 데이터 시트보기 (PDF) - Allegro MicroSystems

부품명

상세내역

제조사

A3949
(Rev.:2013)

DMOS Full-Bridge Motor Driver

Allegro MicroSystems 

A3949

DMOS Full-Bridge Motor Driver

ELECTRICAL CHARACTERISTICS at TA = 25°C, VBB = 8 V to 36 V (unless otherwise noted)

Characteristics

Output-On Resistance

Body Diode Forward Voltage

Motor Supply Current

Logic Input Voltage

PHASE, ENABLE, MODE

Logic Input Voltage

SLEEP

Logic Input Current

PHASE, MODE pins

Logic Input Current

ENABLE pin

Logic Input Current

SLEEP pin

Propagation Delay Times

Crossover Delay

Protection Circuitry

UVLO Enable Threshold

UVLO Hysteresis

Thermal Shutdown Temp.

Thermal Shutdown Hysteresis

Symbol

RDSON

VF

IBB

VIN(1)

VIN(0)

VIN(1)

VIN(0)

IIN(1)

IIN(0)

IIN(1)

IIN(0)

IIN(1)

IIN(0)

tpd

tCOD

TJ

ΔTJ

Test Conditions

Source driver, IOUT = –2.8 A, TJ= 25°C

Source driver, IOUT = –2.8 A, TJ= 125°C

Sink driver, IOUT = 2.8 A, TJ= 25°C

Sink driver, IOUT = –2.8 A, TJ= 125°C

Source diode, IF = –2.8 A

Sink diode, IF = 2.8 A

fPWM < 50 kHz

Charge pump turned on; outputs disabled

Sleep mode

VIN = 2.0 V

VIN = 0.8 V

VIN = 2.0 V

VIN = 0.8 V

VIN = 2.7 V

VIN = 0.8 V

From PWM change to source or sink turn on

From PWM change to source or sink turn off

Min.

–

–

–

–

–

–

–

–

–

2.0

–

2.7

–

–

–

–

–

–

–

–

–

–

Typ. Max.

.4

.48

.68

–

.3

.43

.576 –

1.1 1.3

1

1.3

6

8.5

3

4.5

–

10

–

–

–

0.8

–

–

–

0.8

< 1.0 20

< –2.0 –20

40 100

16

40

27

50

< 1 10

600

–

100

–

500

–

VBB rising

–

6

–

–

250

–

–

170

–

–

15

–

Units

Ω

Ω

Ω

Ω

V

V

mA

mA

μA

V

V

V

V

μA

μA

μA

μA

μA

μA

ns

ns

ns

V

mV

°C

°C

Allegro MicroSystems, LLC

3

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Share Link: