FAN8903 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
FAN8903 Datasheet PDF : 16 Pages
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FAN8903(KA3903)
Internal Block Diagram
Start 15
Start COMP
+
Vref1 −
VCC
16
18.6V
UVLO
Delay
Up 13
Down 14
CS 7
A/O 6
F/C 5
TSD
OVP
Input
Gate drive
logic
−
+ Vref2
Human
protection
Vref
Latch 1
Delay
D
Q
CLK Q
Latch 2
GND 1
Mode
selection
Vref
Delay
DQ
CLK Q
5V reference
Vref3
+
−
+
Vref4 −
12
11
M1
M2
2 Vref
8 OUT 1
10 OUT 2
9 PG
3 CT
4 Step
3
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