Cirrus Logic CS1631 - Manual (Page 46)

CS1630/31
46 DS954F3
6.36 Configuration 54 (Config54) – Address 86
7 6 5 4 3 2 1 0
LLP_TIME2 LLP_TIME1 LLP_TIME0 BOP_RSTART - - - -
Number Name Description
[7:5] LLP_TIME[2:0]
Sets the time that the condition V
BST
< (V
Line
- V
LLPMin(th)
) is true to trigger a
boost LLP fault. See “Configuration 62 (Config62) – Address 94” on page 50
for configuring V
LLPMin(th)
using bits BST_LLP[1:0].
000 = 0ms
001 = 1ms
010 = 2ms
011 = 2.5ms
100 = 3ms
101 = 3.5ms
110 = 4ms
111 = 5ms
[4] BOP_RSTART
Configures boost BOP fault behavior. When bit BOP_RSTART is set to ‘1’ the
IC attempts to restart after V
BST
drops down to a nominal voltage level. It is
recommended to enable bit MAX_CUR when BOP_RSTART = 1 so the sec-
ond stage can deliver full output power when a boost BOP fault is detected.
This helps quickly dissipate the energy stored in the boost output capacitor
bringing down the voltage on the capacitor.
0 = Latched fault
1 = Attempts to restart if V
BST
equals 195V for 120V application or 392V
for 230V application
[3:0] - Reserved