MAX8630WETD25+T Maxim Integrated Products, MAX8630WETD25+T Datasheet - Page 7

• Manufacturer Part Number: MAX8630WETD25+T
• Description: IC LED DRVR WHITE BCKLGT 14-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX8630WETD25+T

• Constant Current: Yes
• Topology: PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 5
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 14-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Efficiency: 93%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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