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AAT2806 Datenblatt(Datasheet) 2 Page - Advanced Analog Technology, Inc.

Teile-Nr. AAT2806
Beschreibung  Dual High Efficiency Charge Pump for White LED and Flash Applications
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Hersteller  AAT [Advanced Analog Technology, Inc.]
Homepage  http://www.aatech.com.tw
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 2 page
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Pin Descriptions
Pin Configuration
TDFN44-16
(Top View)
VOUT_FL
VIN
D4
C3-
C3+
3
D3
D2
D1
C2+
VOUT_BL
C1-
EN_FLSH
C2-
C1+
EN/SET
GND
4
5
1
2
6
7
8
14
13
12
16
15
11
10
9
Pin #
Symbol
Function
1
C3-
Flying capacitor 3 negative terminal.
2
C3+
Flying capacitor 3 positive terminal. Connect a 1µF capacitor between C3+ and C3-.
3
VOUT_FL
Regulated output voltage for the flash LED. Requires 1µF capacitor connected between
this pin and ground.
4
VIN
Input power supply. Requires 1µF capacitor connected between this pin and ground.
5
D4
Current sink input 4.
6
D3
Current sink input 3.
7
D2
Current sink input 2.
8
D1
Current sink input 1.
9
GND
Ground.
10
EN/SET
S2Cwire serial interface control pin. It is used to enable/disable the backlight charge
pump and to control the brightness of the white LEDs.
11
C1+
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and C1-.
12
C1-
Flying capacitor 1 negative terminal.
13
VOUT_BL
Regulated output voltage for the white LEDs. Requires 1µF capacitor connected
between this pin and ground.
14
C2+
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.
15
C2-
Flying capacitor 2 negative terminal.
16
EN_FLSH
Enable/disable pin for the flash charge pump.
EP
Exposed paddle (bottom); connect to GND directly beneath package.
AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
2
2806.2006.04.1.8




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