NCP1336 ONSEMI [ON Semiconductor], NCP1336 Datasheet - Page 2

• Manufacturer Part Number: NCP1336
• Description: Quasi-Resonant Current Mode Controller for High Power Universal Off-Line Supplies
• Manufacturer: ONSEMI [ON Semiconductor]

PIN FUNCTION DESCRIPTION
OVERCURRENT PROTECTION ON NCP1336 VERSIONS
Pin No.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Pin Name
Timer
GND
OPP
OTP
ZCD
DRV
VCC
OVP
CS
BO
NC
HV
FB
Ct
NCP1336 / A
NCP1336 / B
Zero Crossing Detection
Over−Voltage Protection
Adjust the Over Power
Supplies the Controller
Over−Temperature
High−Voltage Input
Timing Capacitor
Current Sense
Feedback Pin
Driver Output
Protection
Protection
Function
Brownout
Timer
−
−
http://onsemi.com
A negative voltage applied to this pin reduces the internal maximum peak
current setpoint. Connecting it to an auxiliary winding through a resistor
divider thus performs Over Power compensation. If grounded, OPP is null.
Connect an NTC between this pin and GND pin. Pin 2 features an internal
current source that biases the NTC. When the NTC pulls the pin down, the
circuit permanently latches−off.
Wiring a capacitor to ground helps selecting the timer duration.
Connected to the auxiliary winding, this pin detects the core reset event.
A capacitor connected to this pin acts as the timing capacitor in foldback
mode.
Hooking an optocoupler collector to this pin will allow regulation.
This pin monitors the primary peak current.
This pin is the controller ground.
This pin is the driver’s output to an external MOSFET.
This pin is connected to an external auxiliary voltage.
This pin is the brownout input.
By pulling this pin high, the controller can be permanently latched−off.
This pin is omitted for improved creepage.
Connected to the bulk capacitor, this pin powers the internal current source
to deliver a startup current.
2
Overcurrent protection
Auto−Recovery
X
Pin Description
Overcurrent protection
Latched
X