FAN5608_06 Datasheet, PDF (4/13 Pages) Fairchild Semiconductor – Serial / Parallel LED Driver with Current-Regulated, Step-Up DC/DC Converter

Typical Application
Digital Brightness Control
CIN
2.7V to 5.5V
L = 4.7µH
DAC Input For CH1
DAC Input For CH2
INDB
INDA
V_IN
V_OUT
A1
GND
FAN5608DHMPX
B1
CH2
A2
CH1
B2
NC
4.7µF
V_OUT
Figure 3. FAN5608 Digital Brightness Circuit
Analog Brightness Control
CIN
2.7V to 5.5V
L = 4.7µH
V_EXTERNAL
INDB
INDA
V_IN
V_OUT
A1
GND
FAN5608DHMPX
A2
CH2
B1
CH1
B2
NC
4.7µF
V_OUT
Figure 4. FAN5608 Analog Brightness Circuit
© 2006 Fairchild Semiconductor Corporation
FAN5608 Rev. 1.0.5 • 8/8/06
4
www.fairchildsemi.com