NCP1207DR2 ON Semiconductor, NCP1207DR2 Datasheet - Page 2

• Manufacturer Part Number: NCP1207DR2
• Description: IC CTRLR PWM CM OVP OCP HV 8SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1207DR2

• Output Isolation: Isolated
• Voltage - Input: 10.6 ~ 16 V
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: NCP1207DR2OSTR

PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
Universal Network
Pin Name
Demag
GND
V
Drv
NC
CS
HV
FB
CC
*Please refer to the application information section
Core reset detection and OVP
Sets the peak current setpoint
Current sense input and
skip cycle level selection
The IC ground
Driving pulses
Supplies the IC
High−voltage pin
Function
+
OVP and
−
Demag
Figure 1. Typical Application
1
2
3
4
http://onsemi.com
NCP1207
NCP1207
The auxiliary FLYBACK signal ensures discontinuous operation and
offers a fixed overvoltage detection level of 7.2 V.
By connecting an Optocoupler to this pin, the peak current setpoint is
adjusted accordingly to the output power demand. By bringing this pin
below the internal skip level, device shuts off.
This pin senses the primary current and routes it to the internal
comparator via an L.E.B. By inserting a resistor in series with the pin, you
control the level at which the skip operation takes place.
The driver’s output to an external MOSFET.
This pin is connected to an external bulk capacitor of typically 10 mF.
This unconnected pin ensures adequate creepage distance.
Connected to the high−voltage rail, this pin injects a constant current into
the V
2
CC
8
7
6
5
bulk capacitor.
+
*
Description
−
+
V
out
GND