FAN5608DMPX Fairchild Semiconductor, FAN5608DMPX Datasheet - Page 9

IC LED DRIVER WHITE BCKLGT 8-MLP

FAN5608DMPX

Manufacturer Part Number
FAN5608DMPX
Description
IC LED DRIVER WHITE BCKLGT 8-MLP
Manufacturer
Fairchild Semiconductor
Type
Backlight, White LED (Serial Interface)r
Datasheet

Specifications of FAN5608DMPX

Topology
PWM, Step-Up (Boost)
Number Of Outputs
2
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
500kHz
Voltage - Supply
2.7 V ~ 5.5 V
Voltage - Output
24V
Mounting Type
Surface Mount
Package / Case
8-MLP
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
20mA
Internal Switch(s)
Yes
Efficiency
85%
Number Of Segments
12
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FAN5608DMPXTR
FAN5608DMPX_NL
FAN5608DMPX_NLTR
FAN5608DMPX_NLTR
Preliminary Data Sheet
REV. 0.8.3 5/29/03
Application Examples
1. Driver For Four White LEDs
2. Driver For Six White LEDs
3. Driver For Eight White LEDs
DAC Input For CH1
DAC Input For CH2
DAC Input For CH1
DAC Input For CH2
DAC Input For CH1
DAC Input For CH2
2.7V to 5V
2.7V to 5V
2.7V to 5V
L = 6.8 H
L = 6.8 H
L =4.7 H
B2
IND
V
A1
B1
A2
IN
IND
V
A1
B1
A2
B2
B2
IN
IND
V
A1
B1
A2
IN
GND
V
IND
CH2
CH1
NC
OUT
NN
V
GND
IND
CH2
CH1
OUT
NC
NN
GND
V
IND
CH2
CH1
OUT
NC
NN
4.7µF
4.7µF
4.7µF
V
OUT
V
OUT
V
OUT
Figure 2
Figure 3
Figure 1
0.85
0.80
0.75
0.70
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.90
0.85
0.80
0.75
0.70
0.65
0.60
2.5
2.5
2.5
Efficiency vs Input Voltage
Efficiency vs Input Voltage
Efficiency vs Input Voltage
3.0
Efficiency vs Input Voltage
3.0
3.0
Input Voltage (V)
3.5
Four LEDs
3.5
Input Voltage (V)
Input Voltage (V)
3.5
Six LEDs
Input Voltage (V)
Eight LEDs
I
I
LED
LED
4.0
I
LED
4.0
I
I
4.0
LED
LED
I
LED
=20mA
=10mA
=10mA
=10mA
=20mA
=20mA
4.5
4.5
4.5
5.0
5.0
5.0
FAN5608
5.5
5.5
5.5
9

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