FAN5607 Fairchild Semiconductor, FAN5607 Datasheet - Page 6

• Manufacturer Part Number: FAN5607
• Description: LED Driver with Adaptive Charge Pump DC/DC Converter
• Manufacturer: Fairchild Semiconductor

FAN5607
Typical Performance Characteristics
T
otherwise noted.
6
A
= 25°C, C
180
160
140
120
100
0.14
0.13
0.12
0.11
0.10
0.09
0.08
1.0
0.9
0.8
0.7
0.6
0.5
80
60
LED CathodeVoltage vs Battery Voltage
2.5
2.5
2.5
Supply Current vs Battery Voltage
IN
= C
3.0
Efficiency vs Battery Voltage
3.0
OUT
3.0
=4.7 µ F, CAP1 = CAP1 = 0.1 µ F, FAN5607 driving four LEDs with V
Battery Voltage (V)
Battery Voltage (V)
Battery Voltage (V)
3.5
3.5
3.5
I
4.0
LED
4.0
4.0
= 2mA
I
4.5
LED
I
4.5
LED
4.5
I
LED
= 20mA
= 20mA
5.0
= 2mA
5.0
5.0
5.5
5.5
5.5
4.5
4.0
3.5
3.0
2.5
22
21
20
19
18
0
2.5
LED Current vs BatteryVoltage
Upper Mode Change Voltage vs
3.0
LED Forward Voltage
5
LED Current (mA)
3.5
I
LED
Battery Voltage (V)
10
= 20mA
I
4.0
LED
f
= 2mA
= 3.5V at 20mA, unless
PRODUCT SPECIFICATION
15
4.5
REV. 1.0.0 6/22/04
5.0
20
5.5
2.2
2.1
2.0
1.9
1.8
25