MAX8822 데이터 시트보기 (PDF) - Maxim Integrated
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MAX8822
Maxim Integrated
MAX8822 Datasheet PDF : 15 Pages
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Ultra-Efficient Negative Charge-Pump LED
Driver with Dual LDOs in 3mm x 3mm Thin QFN
C3
C4
C5
1μF
1μF
2.2μF
INPUT
2.7V
TO
5.5V
VIN
IN
C1
4.7μF
GND
C1P
C1N C2P C2N
NEG
NEG
0.5x INVERTING CHARGE PUMP
REF
C2
0.1μF
BANDGAP
REF
UVLO,
THERMAL
SHUTDOWN
ENLDO
ENLED
SERIAL-
PULSE
CONTROL
INTERFACE
LDO
VOLTAGE
CONTROL
LED
CURRENT
CONTROL
LOW-DROPOUT
LINEAR
REGULATORS
SEL MIN
NEG
LDO1
C6
1μF
LDO2
C7
1μF
VIN
LED1
D1
INDEPENDENT,
ADAPTIVE
CURRENT
REGULATORS
LED2
D2
LED3
D3
LED4
D4
MAX8822
EP
Figure 3. MAX8822 Functional Block Diagram and Application Circuit
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