TRUTH TABLE
Pos.
1. forward
2. reverse
3. Free-wheeling low
4. Free-wheeling high
5. Disable
6. Enable
7. IN1 disconnected
8. IN2 disconnected
9. DI disconnected
10. EN disconnected
11. Current limit. active
12. Undervoltage 1.)
13. Overtemperature 2.)
14. Overcurrent 2.)
L9230
DI
EN
IN1
IN2 OUT1 OUT2
SF 3)
SPI 4)
DIA_REG
L
H
H
L
H
L
H
L
H
L
H
L
H
H
L
H
L
L
L
L
H
L
H
H
H
H
H
H
H
X
X
X
Z
Z
L
X
L
X
X
Z
Z
L
L
H
Z
X
H
X
L
H
X
Z
X
H
Z
X
X
X
Z
Z
H
See
H
Page
17
L
X
Z
X
X
Z
Z
L
L
H
X
X
Z
Z
H
X
X
X
X
Z
Z
L
X
X
X
X
Z
Z
L
X
X
X
X
Z
Z
L
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).
The tristate conditions and the status-flag 3) are reset via DI or EN.
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:
Overtemperature:
IOUT1,2
Tj
>8,0 A
>175°C
Undervoltage:
VVs-GND <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)
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