AAT2803ISK-4.5-T1 AnalogicTech, AAT2803ISK-4.5-T1 Datasheet - Page 2

• Manufacturer Part Number: AAT2803ISK-4.5-T1
• Description: Six-Channel White LED Backlight Charge Pump with Flash
• Manufacturer: AnalogicTech

Pin Descriptions
Pin Configuration
2
13, 15, 24
6, 7, 23
Pin #
4, 14
EP
10
12
16
17
18
19
20
21
22
11
1
2
3
5
8
9
VOUT_FL
VOUT_BL
Symbol
EN/SET
EN_FL
GND
C1+
C2+
C3+
VIN
N/C
C1-
C3-
C2-
D1
D2
D3
D5
D4
D6
Function
Flying capacitor 1 negative terminal.
Flying capacitor 1 positive terminal. Connect a 1μF capacitor between C1+ and C1-.
Flash output voltage. Requires 1μF capacitor connected between this pin and ground.
Input power supply. Requires 1μF capacitor connected between this pin and ground.
Enable pin for flash charge pump. For normal operation, connect to V
nected low, the flash charge pump shuts down and consumes less than 1μA of current.
No connect.
Backlight output voltage charge pump. Requires 1μF capacitor connected between this
pin and ground.
Flying capacitor 2 positive terminal. Connect a 1μF capacitor between C2+ and C2-.
Flying capacitor 3 positive terminal. Connect a 1μF capacitor between C3+ and C3-.
Flying capacitor 3 negative terminal.
Flying capacitor 2 negative terminal.
Ground.
Current sink input #1.
Current sink input #2.
Current sink input #3.
Current sink input #5.
Current sink input #4.
Current sink input #6.
AS
settings for all six channels. This pin should not be left floating.
Exposed paddle (bottom); connect to GND directly beneath package.
2
Cwire serial interface control pin for backlight charge pump. It controls the current
VOUT_FL
EN_FL
C1+
N/C
VIN
C1-
1
2
3
4
5
6
(Top View)
QFN44-24
AAT2803
18
17
16
15
14
13
Six-Channel White LED Backlight
D3
D2
D1
GND
VIN
GND
Charge Pump with Flash
IN
. When con-
2803.2006.04.1.5