11/25

L9230

TRUTH TABLE

1.)

In case of undervoltage tristate and status-flag are reset automatically.

2.)

Whenever overcurrent or overtemperature is detected, the fault is stored (i.e. status-flag remains low).

L = Low

H = High

X = High or Low

Z = High impedance

(all output stage transistors are switched off in static state. For more inform. see next page )

Overcurrent:

>8,0 A

Overtemperature:

>175

Undervoltage:

<5.0 V

(at least down to 2,5V)

3.)

If Mode „Status-Flag“ is selected (see 1.5)

4.)

If Mode „SPI-Diagnosis is selected (see 1.5)

Pos.

DI

EN

IN1

IN2

OUT1

OUT2

DIA_REG

1. forward

L

H

H

L

H

L

H

See

Page

17

2. reverse

L

H

L

H

L

H

H

3. Free-wheeling low

L

H

L

L

L

L

H

4. Free-wheeling high

L

H

H

H

H

H

H

5. Disable

H

XXXZ

Z

L

6. Enable

X

L

X

X

Z

Z

L

7. IN1 disconnected

L

H

Z

X

H

X

H

8. IN2 disconnected

L

H

X

Z

X

H

H

9. DI disconnected

Z

XXXZ

Z

L

10. EN disconnected

X

Z

X

X

Z

Z

L

11. Current limit. active

L

H

X

X

Z

Z

H

XXXXZ

Z

L

XXXXZ

Z

L

XXXXZ

Z

L