3971

DUAL DMOS

FULL-BRIDGE DRIVER

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at T

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Load Supply Voltage Range

V

BB

Operating

10

—

50

V

Logic Supply Voltage Range

V

DD

Operating

4.5

5.0

5.5

V

Load Supply Current

I

BB

Operating, each supply, no load

—

—

3.0

mA

Logic Supply Current

I

DD

Operating

—

—

5.0

mA

Output Drivers

Output Leakage Current

I

DSS

V

—

<1.0

20

µA

V

—

<-1.0

-20

mA

Output ON Resistance

r

DS(on)

High-side switch, I

—

325

375

m

Ω

Low-side switch, I

—

175

200

m

Ω

Body Diode Forward Voltage

V

F

Source diode, I

—

1.2

—

V

Sink diode, I

—

1.0

—

V

High-Side Gate Voltage

V

CP

C = 0.22

µF, reference V

BB

6.0

6.5

7.0

V

Control Logic

Logic Input Voltage

V

IN(0)

——

0.8

V

V

IN(1)

2.0

—

—

V

Logic Input Current

I

IN(0)

V

—

<1.0

-5.0

µA

I

IN(1)

V

—

20

50

µA

Propagation Delay Time

t

PD

50% to 90%:

PWM change to source off

—

50

—

ns

PWM change to sink off

—

60

—

ns

PWM change to source on

—

565

—

ns

PWM change to sink on

—

665

—

ns

Disable to source on

—

150

—

ns

Disable to sink on

—

250

—

ns

Thermal Shutdown Temperature

T

J

—

165

—

°C

Thermal Shutdown Hysteresis

∆T

J

—15

—

°C

UVLO Threshold

V

UVLO

Increasing V

DD

3.9

4.15

4.4

V

UVLO Hysteresis

∆V

UVLO

—0.15—

V

NOTES:

1. Typical Data is for design information only.

2. Negative current is defined as coming out of (sourcing) the specified device terminal.