Datasheet

Data Sheet ADP8866
Rev. A | Page 35 of 52
Independent Sink Current Time (ISCT1)—Register 0x1C
Table 44. ISCT1 Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
SCON
Reserved
SC5OFF
Table 45.
Bit Name Bit No. Description
SCON [7:4] SC on time. If the SCxOFF time is not disabled, then when the independent current sink is enabled (Register 0x1A
and Register 0x1B), it remains on for the on time selected (per the following list) and then turns off.
0000 = 0.00 sec
1
.
0001 = 0.05 sec.
0010 = 0.10 sec.
0011 = 0.15 sec.
0100 = 0.20 sec.
0101 = 0.25 sec.
0110 = 0.30 sec.
0111 = 0.35 sec.
1000 = 0.40 sec.
1001 = 0.45 sec.
1010 = 0.50 sec.
1011 = 0.55 sec.
1100 = 0.60 sec.
1101 = 0.65 sec.
1110 = 0.70 sec.
1111 = 0.75 sec.
N/A [3:2] Reserved.
SC5OFF [1:0] SC5 off time. When the SC off time is disabled, the SC remains on while enabled. When the SC off time is set to any
other value, the ISC turns off for the off time (per the following listed times) and then turns on according to the
SCON setting.
00 = off time disabled
2
.
01 = 0.6 sec.
10 = 1.2 sec.
11 = 1.8 sec.
1
If SCON is set to 0 sec, then after the ISC completes a ramp up, it immediately starts to ramp back down again (if SCxOFF is not disabled). SCON should not be set to 0 if
the fade-in time is also 0 seconds.
2
An independent sink remains on continuously when it is enabled and SCxOFF is disabled.
Independent Sink Current Time (ISCT2)—Register 0x1D
Table 46. ISCT2 Bit Map
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
SC4OFF SC3OFF SC2OFF SC1OFF