Datasheet

MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
_______________________________________________________________________________________ 7
MAX8630X
1μF
1μF
1μF
1μF
IN
GND
ENM
ENS
OUT
C1P C1N
MAIN
SUB
C2P C2N
ENABLE MAIN
ON/OFF AND
SERIAL DIMMING
ENABLE SUB
ON/OFF AND
SERIAL DIMMING
2.7V TO 5.5V
LED1
LED2
LED3
LED4
LED5
MAX8630W
1μF
1μF
1μF
0.1μF
1μF
IN
GND
CPWM
PWM
OUT
C1P C1N
C2P C2N
DIRECT PWM
SIGNAL
2.7V TO 5.5V
LED1
LED2
LED3
LED4
LED5
0.6V
0.12V
MIN
SELECT
ERROR
AMP 1
MAIN CONTROL
SUB CONTROL
CONTROL AND
REFERENCE
MAX8630W
MAX8630X
ENS
(PWM)
LED1
D1
LED2
D2
LED3
D3
LED4
D4
LED5
D5
+
–
+
–
+
–
+
–
+
–
0.6V
INPUT
2.7V TO 5.5V
1.25V
OUT
OVD
C
OUT
1μF
C
IN
1μF
ERROR
AMP 2
RSET
( ) ARE FOR MAX8630W
ENM
(CPWM)
MAX8630W
ONLY
C1
1μF
C1P
IN
GND
C1N C2P C2N
C2
1μF
1x/1.5x REGULATING
CHARGE PUMP
Figure 2. Typical Applications Circuit with the MAX8630W
Figure 3. Functional Diagram
Figure 1. Typical Applications Circuit with the MAX8630X