CS1630/31

32

DS954F2

7

654

32

10

STRING

TT_MAX1

TT_MAX0

LED_ARG

IPEAK2

IPEAK1

IPEAK0

-

Number

Name

Description

[7]

STRING

Configures second stage series/parallel output channel configuration.

0 = Second stage configured as parallel strings

1 = Second stage configured with strings in series

[6:5]

TT_MAX[1:0]

Configures the maximum measurable second stage switching cycle period.

00 = 51.15

s

01 = 102.35

s

10 = 153.55

s

11 = 204.75

s

[4]

LED_ARG

Configures which channel is connected to the color LED string (the string with a

gain that is dependent on dim and temperature).

0 = Color LED string connected to channel 1

1 = Color LED string connected to channel 2

[3:1]

IPEAK[2:0]

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 0

value7. The voltage

on the FBSENSE pin that corresponds to the minimum peak current is calcu-

lated using the following formula:

[0]

-

Reserved

1.4

IPEAK[2:0] 1

+

 16



 15

+



CLAMP[1:0] 8







–

8



+

512

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