MAX8648 Maxim Integrated Products, MAX8648 Datasheet - Page 13

• Manufacturer Part Number: MAX8648
• Description: (MAX8647 / MAX8648) Ultra-Efficient Charge Pumps
• Manufacturer: Maxim Integrated Products

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Figure 5. MAX8647 Typical Application Circuit
Figure 7. Driving LEDs with Multiple Supplies
2.7V TO 5.5V
BRIGHTNESS
ON/OFF AND
INPUT
I
2
C PORT
1μF
1.7V TO 5.5V
Six White/RGB LEDs in 3mm x 3mm Thin QFN
V
LOGIC
0.1μF
SDA
SCL
IN
GND
V
______________________________________________________________________________________
DD
C1P
1μF
C1N
MAX8647
INTERFACE
C2P
SERIAL-
PULSE
2.7V TO 5.5V
1μF
INPUT
C2N
LED1
LED2
LED3
LED4
LED5
LED6
1μF
NEG
EP
Ultra-Efficient Charge Pumps for
WHITE OR
IN
GND
ENA
ENB
ENC
1μF
RGB LED
C1P
1μF
D1
D2
D3
D4
D5
D6
C1N
MAX8648
C2P
1μF
C2N
LED1
LED2
LED3
LED4
LED5
LED6
NEG
EP
Figure 6. MAX8648 Typical Application Circuit
2.7V TO 5.5V
INTERFACE
INPUT
SERIAL-
PULSE
1μF
RED CHARGE
INDICATOR
WHITE OR
RGB LED
1μF
D1
D2
D3
D4
D5
D6
V1
IN
GND
ENA
ENB
ENC
C1P
V2
1μF
C1N
MAX8648
V3
C2P
1μF
C2N
LED1
LED2
LED3
LED4
LED5
LED6
NEG
EP
WHITE OR
RGB LED
1μF
D1
D2
D3
D4
D5
D6
13