Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Quiescent Current in Standby

Mode

<1

<1

90

10

µA

µA

Supply Current

2

6

mA

Low Enable Voltage

1.5

V

High Enable Voltage

3.5

6

V

Enable Threshold Hysteresis

1

V

Enable Input Current

85

250

µA

Low Input Voltage

1.5

V

High Input Voltage

3.5

V

Input Threshold Hysteresis

1

V

Input Bias Current

-3

2

0

10

1

50

µA

µA

ON-Resistance to Supply or

GND

1.2

1.1

0.7

2.8

2.25

Ω

Ω

Ω

Output Current Limitation

1.2

1.6

2.2

A

Diagnostic Output Drop

Overvoltage or Thermal Shut-

down

0.6

V

Supply Overvoltage

Threshold

17

19

21

V

Turn on Delay Time

Measured with 93

Ω load

50

150

µs

30

150

µs

Turn off Delay Time

10

100

µs

220

µs

Rising Delay Time

115

250

µs

Falling Delay Time

115

250

µs

Rise Time

30

100

µs

60

150

µs

Fall Time

25

100

µs

50

150

µs

* Tested at 125

°C and guaranteed by correlation

FUNCTIONAL DESCRIPTION

The L9997ND is a motor driver two half-bridge

outputs, intended for driving dc motors in automo-

tive systems. The basic function of the device is

shown in the Table 1.

Table 1. Table function.

Status

EN

IN1

IN2

OUT1

OUT2

DIAG

NOTE

1

L

X

X

Tristate

Tristate

OFF

Standby Mode

2

H

H

H

SRC

SRC

OFF

Recommended for braking

3

H

H

L

SRC

SNK

OFF

4

H

L

H

SNK

SRC

OFF

5

H

L

L

SNK

SNK

OFF

6

H

X

X

Tristate

Tristate

ON

Overvoltage or Overtemperature

L9997ND

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