1200P60 ON Semiconductor, 1200P60 Datasheet - Page 2

• Manufacturer Part Number: 1200P60
• Description: Search -----> NCP1200P60G
• Manufacturer: ON Semiconductor

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PIN FUNCTION DESCRIPTION
Pin No.
Universal Input
*Please refer to the application information section
1
2
3
4
5
6
7
8
Pin Name
GND
V
Drv
Adj
CS
NC
HV
FB
CC
Filter
EMI
Adjust the Skipping Peak Current
Sets the Peak Current Setpoint
Current Sense Input
The IC Ground
Driving Pulses
Supplies the IC
No Connection
Generates the V
400 V
10 mF
Function
C3
CC
+
from the Line
Figure 1. Typical Application
1
2
3
4
Adj
FB
CS
GND
http://onsemi.com
V
This pin lets you adjust the level at which the cycle skipping process takes
place.
By connecting an Optocoupler to this pin, the peak current setpoint is ad-
justed accordingly to the output power demand.
This pin senses the primary current and routes it to the internal comparator
via an L.E.B.
The driver’s output to an external MOSFET.
This pin is connected to an external bulk capacitor of typically 10 mF.
This un−connected pin ensures adequate creepage distance.
Connected to the high−voltage rail, this pin injects a constant current into
the V
Drv
NC
HV
CC
NCP1200
10 mF
C5
CC
8
7
6
5
2
bulk capacitor.
+
*
R
sense
M1
MTD1N60E
Description
1N5819
D2
Rf
470
D8
5 V1
+
C2
470 mF/10 V
6.5 V @ 600 mA