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APW7008 데이터 시트보기 (PDF) - Anpec Electronics
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APW7008
1X/1.5X/2x Charge Pump White LED Driver
Anpec Electronics
APW7008 Datasheet PDF : 21 Pages
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APW7008
Block Diagram
C1+
C1-
C2+
C2-
VIN
EN
CTRL0
CTRL1
CTRL2
POR &
SOFT-START
CURRENT LIMIT
1x/1.5x/2x MODE CHARGE PUMP AND
GATE CONTROL LOGIC
LED ON/OFF
CONTROL
1MHz
OSCILLATOR
0.18V
0.1V
MODE SELECT
AND
MIN ILED SELECT
1.2V
ISET
CONTROLLED
CURRENT
MIRROR
Error
Amp
1.2V
+
+
+
+
-
-
-
-
VOUT
ILED1
ILED2
ILED3
ILED4
GND
Typical Application Circuit
Digital
Inputs
C
OUT
1
µ
F
16
15
14
13
ILED1 ILED2 ILED3 ILED4
1
EN
GND
12
2
CTRL0
3
CTRL1
APW7008
C1-
11
C1+
10
CTRL2
4
ISET VOUT VIN
5
6
7
C2-
9
C2+
8
R
SET
C
IN
1
µ
F
C2
1
µ
F
C1
1
µ
F
Battery
Copyright
©
ANPEC Electronics Corp.
5
Rev. A.3 - Feb., 2009
www.anpec.com.tw
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