CS1630 Datasheet, PDF (40/56 Pages) Cirrus Logic – 2-Channel TRIAC Dimmable LED Driver IC

CS1630/31
6.27 Configuration 45 (Config45) – Address 77
7
6
5
4
3
-
-
-
-
-
2
1
0
-
VDIFF_LAT MAX_CUR
Number
[ 7:2 ]
[1]
[0]
Name
-
VDIFF_LAT
MAX_CUR
Description
Reserved
Selects if the V_Diff fault is to be a latched type fault.
0 = Unlatched fault
1 = Latched fault
Configures the second stage to draw maximum power when the boost output
voltage exceeds boost overvoltage protection threshold V_BST > V_BOP(th), trig-
gering a boost overvoltage fault.
0 = Disable
1 = Enable
6.28 Configuration 46 (Config46) – Address 78
7
6
5
4
-
-
-
-
3
WAKEUP3
2
WAKEUP2
1
WAKEUP1
0
WAKEUP0
Number
[ 7:4 ]
[ 3:0 ]
Name
-
WAKEUP[3:0]
Description
Reserved
Configures the 8-bit code value corresponding to temperature threshold
Temp_Wakeup. Upon power-up the system will enter an external overtempera-
ture fault disabling the power train, unless the external temperature measured
at the external NTC is below Temp_Wakeup. If the temperature drops below this
threshold, the device will clear all overtemperature faults. The setting is an off-
set to Temp_eOTP (see “Configuration 59 (Config59) – Address 91” on page 48
for configuring Temp_eOTP).
CODE_TEMPWakeup = CODE_TEMPeOTP + WAKEUP [3:0]  4 
The equation above is setting 8-bit code, CODE_TEMPWakeup, corresponding to
temperature Temp_Wakeup, which is in degrees Celsius. The wakeup tempera-
ture code is configured as an offset from the eOTP temperature code and the
shutdown temperature code is configured as an offset from the wakeup tem-
perature code; Temp_eOTP < Temp_Wakeup < Temp_Shutdown.
40
DS954F2