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LNK362 Datasheet(PDF) 2 Page - Power Integrations, Inc.

Part No. LNK362
Description  Energy Effi cient, Low Power Off-Line Switcher IC
Download  16 Pages
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Maker  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
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LNK362 Datasheet(HTML) 2 Page - Power Integrations, Inc.

 
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LNK362-364
C
12/05
2
PI-4232-110205
CLOCK
JITTER
OSCILLATOR
5.8 V
4.8 V
SOURCE
(S)
S
R
Q
DC
MAX
BYPASS
(BP)
FAULT
PRESENT
+
-
VI
LIMIT
LEADING
EDGE
BLANKING
THERMAL
SHUTDOWN
+
-
DRAIN
(D)
REGULATOR
5.8 V
BYPASS PIN
UNDER-VOLTAGE
CURRENT LIMIT
COMPARATOR
FEEDBACK
(FB)
Q
6.3 V
RESET
AUTO-
RESTART
COUNTER
V
FB -VTH
CLOCK
Figure 3. Pin Configuration.
Pin Functional Description
DRAIN (D) Pin:
Power MOSFET drain connection. Provides internal operating
current for both start-up and steady-state operation.
BYPASS (BP) Pin:
Connection point for a 0.1
µF external bypass capacitor for the
internally generated 5.8 V supply. If an external bias winding is
used, the current into the BP pin must not exceed 1 mA.
FEEDBACK (FB) Pin:
During normal operation, switching of the power MOSFET is
controlled by this pin. MOSFET switching is disabled when a
current greater than 49
µA is delivered into this pin.
SOURCE (S) Pin:
This pin is the power MOSFET source connection. It is also the
ground reference for the BYPASS and FEEDBACK pins.
PI-3491-111903
FB
D
S
BP
S
S
S
P Package (DIP-8B)
G Package (SMD-8B)
8
5
7
1
4
2
3
Figure 2. Functional Block Diagram.


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