AAT1235 Datasheet, PDF (12/21 Pages) Advanced Analogic Technologies – High Efficiency White LED Drivers for Backlight and Keypad

AAT1235
High Efficiency White LED Drivers
for Backlight and Keypad
Address 3: LED Group A ON/OFF
Control
Data
A1
A2
A3
1
Off
Off
Off
2
Off
Off
On
3
Off
On
Off
4
Off
On
On
5
On
Off
Off
6
On
Off
On
7
On
On
Off
8
On
On
On
Table 4: Address 3 for Group A ON/OFF State.
AS²Cwire Serial Interface Timing
Address 4: LED Groups A & B ON
Control
B2
B1
A1
A2
A3
On
On
On
On
On
Table 5: Address 4 for Turning Group A and B
All On.
Address 4 turns on all channels with the current
programmed by Addresses 0 and 1. No DATA
needs to be provided.
EN/SET
Address
Address
T_HI
T_LO
T_LAT
1
2
17
18
0
Data
T_LAT
1
2 . . . n ≤ 16
1
Data Reg 1
0
n
Data Reg 2
0
12
1235.2007.02.1.1