CS1630/31
6.8 Configuration 3 (Config3) – Address 35
7
6
5
4
3
2
1
0
STRING
TT_MAX1
TT_MAX0
LED_ARG
IPEAK2
IPEAK1
IPEAK0
-
Number
Name
Description
Configures second stage series/parallel output channel configuration.
0 = Second stage configured as parallel strings
[7]
STRING
1 = Second stage configured with strings in series
Configures the maximum measurable second stage switching cycle period.
00 = 51.15s
01 = 102.35s
10 = 153.55s
11 = 204.75s
[6:5]
TT_MAX[1:0]
LED_ARG
Configures which channel is connected to the color LED string (the string with a
gain that is dependent on dim and temperature).
[4]
0 = Color LED string connected to channel 1
1 = Color LED string connected to channel 2
Configures the minimum measurable peak current level on the second stage
sense resistor when the gate drive is turned on along with the CLAMP[1:0] set-
ting. IPEAK[2:0] is an unsigned integer in the range of 0value7. The voltage
on the FBSENSE pin that corresponds to the minimum peak current is calcu-
lated using the following formula:
[3:1]
[0]
IPEAK[2:0]
IPEAK[2:0] + 1 16 + 15 – CLAMP[1:0] 8 + 8
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1.4
512
-
Reserved
32
DS954F2
APEX [ CIRRUS LOGIC ]
