DMOS Dual Full-Bridge PWM Motor Driver

A3974

5

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Control Logic (continued)

Reference Input Current

—

—

±1.0

μA

Reference Input Offset Voltage

—

±10

—

mV

Reference Divider Ratio

D16 = 1

—

10

—

—

D16 = 0

—

5.0

—

—

—

0

±4.0

%

—

0

±14

%

—

0

±4.0

%

—

0

±10

%

Propagation Delay Time

50% TO 90%:

PWM change to source on

600

750

1000

ns

PWM change to source off

50

150

350

ns

PWM change to sink on

600

750

1000

ns

PWM change to sink off

50

150

350

ns

Crossover Delay Time

SR enabled

300

600

1000

ns

Thermal Shutdown Temperature

—

165

—

°C

Thermal Shutdown Hysteresis

—

15

—

°C

UVLO Enable Threshold

3.9

4.2

4.45

V

UVLO Hysteresis

0.05

0.10

—

V

Logic Supply Current

—

—

10

mA

Outputs off

—

—

8.0

mA

Idle mode (D18 = 1, D19 = 0)

—

—

1.5

mA

Sleep mode (inputs below 0.5 V)

—

—

100

μA

NOTES: 1. Typical Data is for design information only.

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

otherwise noted), continued.