FAN400A Fairchild Semiconductor, FAN400A Datasheet - Page 3

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FAN400A

Manufacturer Part Number
FAN400A
Description
This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2008 Fairchild Semiconductor Corporation
FAN400A Rev. 1.0.2
Marking Information
Pin Configuration
Pin Definitions
Pin #
DIP
1
2
3
4
5
6
7
8
SSOT
Pin #
6
5
4
3
2
1
GND
NC
FB
SENSE
Name
GATE
GND
VDD
NC
NC
NC
FB
SSOT-6
Description
The totem-pole output driver to drive the power MOSFET
Power supply
No connection
Current sense senses the voltage across a sensed resistor. To provide over-
current protection, PWM output is disabled if the voltage exceeds an internal
threshold. This pin also provides current information for current-mode control.
No connection
No connection
The FB pin provides feedback information to the internal PWM comparator. This
feedback is used to control the duty cycle. When no feedback is provided, this
pin is left open.
Ground
Figure 4.
Figure 3.
GATE
SENSE
VDD
Pin Configurations
3
XXX: AAT=FAN400A
TT : Die run code
. . .
- - - : Week code
1’st line
Z: Assembly plant code
X: Year code
Y: Week code
TT: Die run code
3’rd line
T: N=DIP
P: Y=Green package
M: Manufacture flow code
Top Mark
: Year code
SENSE
GATE
VDD
NC
DIP-8
GND
NC
NC
FB
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