Owner manual

CS1630/31
50 DS954F3
6.43 Configuration 62 (Config62) – Address 94
6.44 CRC Tag (CRC_TAG)
– Address 102
CRC Tag register used by the communication system. To activate the use of this register the CRC bit must be
programmed to ‘1’ (see "Configuration 38 (Config38) – Address 70" on page 39). The correct CRC value is ob-
tained by computing the CRC for all the registers from address 0 through 95. This includes all the reserved set-
tings which have been factory programmed.
76543210
CH2_OFF2 CH2_OFF1 CH2_OFF0 CH1_OFF2 CH1_OFF1 CH1_OFF0 BST_LLP1 BST_LLP0
Number Name Description
[7:5] CH2_OFF[2:0]
Sets fixed offset delay for ZCD comparator and other path delays in order to
get correct T2 measurements for channel 2. Adjusting CH2_OFF[2:0] correctly
is necessary to achieve accurate and predictable output currents across the
entire dimming range.The offset delay is given by:
[4:2] CH1_OFF[2:0]
Sets fixed offset delay for ZCD comparator and other path delays in order to
get correct T2 measurements for channel 1. Adjusting CH1_OFF[2:0] correctly
is necessary to achieve accurate and predictable output currents across the
entire dimming range. The offset delay is given by:
[1:0] BST_LLP[1:0]
Sets the minimum value V
LLPMin(th)
by which the boost output voltage needs to
be below the AC line voltage to trigger an LLP fault.
00 = 80V for 120V applications; 160V for 230V applications
01 = 40V for 120V applications; 80V for 230V applications
10 = 20V for 120V applications; 40V for 230V applications
11 = 10V for 120V applications; 20V for 230V applications
76543210
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
CH2_OFF[2:0] 50ns
CH1_OFF[2:0] 50ns