Datasheet

LNBH25L I²C interface protocol
Doc ID 022634 Rev 2 19/28
7.4 Status registers
The STATUS 1, 2 registers can be addressed only in read mode and provide the diagnostic
functions described in the following tables.
N/A = Reserved bit.
All bits reset to “0” at power-on.
N/A = Reserved bit.
All bits reset to “0” at power-on.
Table 10. STATUS 1 (Read register. Register address = 0X0)
BIT Name Value Description
Bit 0
(LSB)
OLF
1
V
OUT
pin overload protection has been triggered (I
OUT
> I
MAX
). Refer to Ta bl e 8 for
the overload operation settings (PCL bit).
0 No overload protection has been triggered to the V
OUT
pin (I
OUT
< I
MAX
).
Bit 1 N/A - Reserved
Bit 2 N/A - Reserved
Bit 3 N/A - Reserved
Bit 4 N/A - Reserved
Bit 5 N/A - Reserved
Bit 6 OTF
1
Junction overtemperature is detected, T
J
> 150 °C. See also the THERM bit
setting in
Ta bl e 9 .
0
Junction overtemperature not detected, T
J
< 135 °C. T
J
is below thermal
protection threshold.
Bit 7
(MSB)
PNG
1 Input voltage (V
CC
pin) lower than LPD minimum thresholds. Refer to Ta bl e 1 2 .
0 Input voltage (V
CC
pin) higher than LPD thresholds. Refer to Tabl e 1 2 .
Table 11. STATUS 2 (Read register. Register address = 0X1)
BIT Name Value Description
Bit 0
(LSB)
N/A - Reserved
Bit 1 N/A - Reserved
Bit 2 N/A - Reserved
Bit 3 N/A - Reserved
Bit 4 N/A - Reserved
Bit 5 N/A - Reserved
Bit 6 N/A - Reserved
Bit 7
(MSB)
N/A - Reserved