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MAX8847Z View Datasheet(PDF) - Maxim Integrated
Part Name
Description
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MAX8847Z
High-Performance Negative Charge Pump for 6 White LEDs in 3mm x 3mm Thin QFN
Maxim Integrated
MAX8847Z Datasheet PDF : 13 Pages
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MAX8847Y/MAX8847Z
High-Performance Negative Charge Pump
for 6 White LEDs in 3mm x 3mm Thin QFN
C2
C3
1
µ
F
1
µ
F
V
IN
IN
2.7V TO 5.5V
C1
1
µ
F
GND
ENABLE
AND
ENA
DIMMING
CONTROL
INPUTS
ENB
CPWM
C25
0.22
µ
F
C1P
C1N
C2P
C2N
INVERTING CHARGE PUMP
FB
1MHz
OSCILLATOR
SEL
MIN
CURRENT
REGULATOR
LED
ENABLE
PWM
DIMMING
CURRENT
REGULATOR
360k
I
CURRENT
REGULATOR
CURRENT
SOURCE
CONTROL
CURRENT
REGULATOR
THERMAL
DERATING
AND
PROTECTION
MAX8847Y
MAX8847Z
CURRENT
REGULATOR
CURRENT
REGULATOR
NEG
C4
1
µ
F
EP
V
IN
LED1
LED2
LED3
LED4
LED5
LED6
Figure 1. Functional Diagram and Application Circuit
Maxim Integrated
9
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