NCP1217P65 ON Semiconductor, NCP1217P65 Datasheet - Page 2

• Manufacturer Part Number: NCP1217P65
• Description: IC CTRLR PWM CM OVP HV 8DIP
• Manufacturer: ON Semiconductor
• Type: PWM Current-Mode Controller For High-Power Universal Off-Line Suppliesr

Specifications of NCP1217P65

• Output Isolation: Isolated
• Frequency Range: 58.5 ~ 71.5kHz
• Voltage - Input: 10 ~ 16 V
• Operating Temperature: 0°C ~ 150°C
• Package / Case: 8-DIP (0.300", 7.62mm), 7 Leads
• Input Voltage Range: 16 V
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: NCP1217P65OS

PIN FUNCTION DESCRIPTION
Pin No.
UNIVERSAL
1
2
3
4
5
6
7
8
INPUT
Pin Name
GND
V
Adj
Drv
NC
FB
CS
HV
FILTER
CC
EMI
Adjust the skipping peak current
Sets the peak current setpoint
Current sense input
The IC ground
Driving pulses
Supplies the IC
Ensures a clean and lossless
startup sequence
Function
--
Figure 1. Typical Application Example
+
1
2
3
4
Ramp Adjustment
See Application
http://onsemi.com
NCP1217
Adj
FB
CS
Gnd
This pin lets you adjust the level at which the cycle skipping process takes
place. Shorting this pin to ground permanently disables the skip cycle
feature.
By bringing this pin above 3.1 V, you permanently shut off the device.
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 comparat-
or via an L.E.B. By inserting a resistor in series with the pin, you control
the amount of ramp compensation you need.
The driver’s output to an external MOSFET.
This pin is connected to an external bulk capacitor of typically 22 mF.
This unconnected pin ensures adequate creepage distance.
Connected to the high--voltage rail, this pin injects a constant current into
the V
V
Drv
Section
HV
CC
2
CC
8
7
6
5
capacitor during the startup sequence.
+
Aux.
Description
--
+
V
OUT