MAX1578(2004) 查看數據表（PDF） - Maxim Integrated
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MAX1578 Datasheet PDF : 13 Pages
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Complete Bias and White LED Power Supplies
for Small TFT Displays
Block Diagram
IN
GND
COMP
1MHz
OSCILLATOR
BIAS
PWM
CONTROL
REF
OSC
OVERVOLTAGE
PROTECTION
LX
N
PGND
OUT
CTRL
ONBIAS
170mV
TIMER
CHARGE-PUMP
CONTROL
SHUTDOWN
SEQUENCING
OSC
DIVIDE BY FOUR
OSC
MULTIMODE
CHARGE PUMP
1.5X/2X
PMP
PMPB
DIVIDE BY 64
5V LDO
SHUTDOWN
CS
C1P
C1N
C2P
C2N
VDD
MAIN
N
CD2
-2X INVERTING
CD1
CHARGE PUMP
NEG
N
SHUTDOWN
MAX1578
MAX1579
3X POSITIVE
CHARGE PUMP
SHUTDOWN
CU1
CU2
CU3
POS
N
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