FAN100_09 Datasheet, PDF (2/16 Pages) Fairchild Semiconductor – Primary-Side-Control PWM Controller

Application Diagram
Internal Block Diagram
Figure 2. Typical Application
VDD 7
+
-
16V/5V
+
OVP
-
28V
Brownout
Internal Bias
OTP
OSC with
Freq Hopping
-
+
PWM
Comparator
Auto-Restart
Protection
SQ
PWM
Comparator
RQ
1.3V
VDD
Soft-Driver
8 Gate
GND
6
Green-Mode
Controller
PWM
Comparator
3
COMI
Leading-Edge
Blanking
1 CS
Slope Compensation
EA_I
EA_V
2.5V
2.5V
Temp.
Compensation
IO
Estimator
tDIS
Detector
Brownout
Protection
VS
5
VO
Estimator
4
COMV
2
GND
Figure 3. Functional Block Diagram
© 2009 Fairchild Semiconductor Corporation
FAN100 Rev. 1.0.2
2
www.fairchildsemi.com