Dual DMOS Full-Bridge Motor Driver

AMT49702

5

Allegro MicroSystems, LLC

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

GENERAL

Load Supply Voltage Range

Operating

3.5

–

15

V

Output On Resistance

–

335

450

mΩ

–

550

690

mΩ

–

375

525

mΩ

–

575

750

mΩ

Diode Forward Voltage

I = 500 mA

–

0.85

1.0

V

VBB Supply Current

–

2.2

4.5

mA

–

3.1

4.5

mA

–

–

0.5

µA

–

–

10

µA

CONTROL LOGIC

Logic Input Voltage, INx

2.0

–

–

V

–

–

0.8

V

Logic Input Hysteresis, INx

100

–

500

mV

Logic Input Voltage, SLEEPn

2.0

–

–

V

–

–

0.4

V

Logic Input Hysteresis, SLEEPn

100

–

–

mV

Logic Input Current

–

33

50

µA

Fault Output Voltage

–

–

200

mV

Fault Output Leakage Current

–

–

1.0

µA

2.1

3.1

4.1

µs

1.5

3.1

4.5

µs

170

205

240

mV

Fixed Off-Time

20

30

40

µs

PROTECTION CIRCUITS

Crossover Delay

200

550

1000

ns

VBB Undervoltage Lockout

–

2.55

2.65

V

VBB Hysteresis

–

125

–

V

Thermal Shutdown Temperature

150

165

180

°C

Thermal Shutdown Hysteresis

–

20

–

°C

[1]

Typical data is for design information only.

[2]

Specified limits are tested at a single temperature and assured over operating temperature range by design and characterization.