Cirrus Logic CS1631 - Manual (Page 42)

CS1630/31
42 DS954F3
6.30 Configuration 48 (Config48) – Address 80
6.31 Configuration 49 (Config49) – Address 81
7 6 5 4 3 2 1 0
OCP_BLANK3 OCP_BLANK2 OCP_BLANK1 OCP_BLANK0 OLP_BLANK2 OLP_BLANK1 OLP_BLANK0 IOTP_SAMP
Number Name Description
[7:4] OCP_BLANK[3:0]
Configures fixed time-blanking interval t
OCP
for overcurrent protection
(OCP). The value is an unsigned integer in the range of 0 value15.
[3:1] OLP_BLANK[2:0]
Configures fixed time blanking interval t
OLP
for open loop protection (OLP)
and sense resistor protection. The value is an unsigned integer in the range
of 0
value7.
[0] IOTP_SAMP
Sample internal temperature sensor at a slower rate when not in internal
overtemperature state (iOTP fault state). Recommended to set bit
IOTP_SAMP to sample slow.
0 = Sample fast
1 = Sample slow
7 6 5 4 3 2 1 0
OCP_CNT2 OCP_CNT1 OCP_CNT0 OCP_LAT OLP_CNT2 OLP_CNT1 OLP_CNT0 OLP_LAT
Number Name Description
[7:5] OCP_CNT[2:0]
Sets the second stage OCP fault counter threshold used when declaring a
fault.
0 = Force OCP fault (debug only)
1-7= Number of times an OCP fault has to occur consecutively.
[4] OCP_LAT
Configures OCP fault type.
0 = Unlatched fault
1 = Latched fault
[3:1] OLP_CNT[2:0]
Sets the second stage OLP fault counter threshold used when declaring a
fault.
0 = Force OLP fault (debug only)
1-7= Number of times an OLP fault has to occur consecutively before the
IC will enter a fault state.
[0] OLP_LAT
Configures OLP fault type.
0 = Unlatched fault
1 = Latched fault
t
OCP
150ns OCP_BLANK  + [3:0] 50ns   =
t
OLP
1 s OLP_BLANK  + [2:0] 0.5 s   =