3968

DUAL FULL-BRIDGE

PWM MOTOR DRIVER

WITH BRAKE

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

ELECTRICAL CHARACTERISTICS at T

V

Control Logic (continued)

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

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

PWM RC Frequency

f

osc

C

22.9

25.4

27.9

kHz

PWM Propagation Delay Time

t

PWM

Comparator Trip to Source OFF

—

1.0

1.4

µs

Cycle Reset to Source ON

—

0.8

1.2

µs

Cross-Over Dead Time

t

codt

1 k

Ω Load to 25 V

0.2

1.8

3.0

µs

Propagation Delay Times

t

pd

I

Disable OFF to Source ON

—

100

—

ns

Disable ON to Source OFF

—

500

—

ns

Disable OFF to Sink ON

—

200

—

ns

Disable ON to Sink OFF

—

200

—

ns

Brake Enable to Sink ON

—

2200

—

ns

Brake Enable to Source OFF

—

200

—

ns

Thermal Shutdown Temp.

T

J

—

165

—

°C

Thermal Shutdown Hysteresis

∆T

J

—15

—

°C

UVLO Enable Threshold

V

T(UVLO)+

Increasing V

CC

—

4.1

4.6

V

UVLO Hysteresis

V

T(UVLO)hys

0.1

0.6

—

V

Logic Supply Current

I

CC(ON)

Both bridges ON (forward or reverse)

—

—

50

mA

I

CC(OFF)

All INPUTs = 2.4 V

—

—

9.0

mA

I

CC(BRAKE)

All INPUTs = 0.8 V

—

—

95

mA