NCP1230GEVB ON Semiconductor, NCP1230GEVB Datasheet - Page 2

• Manufacturer Part Number: NCP1230GEVB
• Description: EVAL BOARD FOR NCP1230G
• Manufacturer: ON Semiconductor

Specifications of NCP1230GEVB

• Design Resources: NCP1230 EVB BOM NCP1230GEVB Gerber Files NCP1230 EVB Schematic
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 90W
• Voltage - Output: 18.6V
• Current - Output: 4.74A
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 47kHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1230
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1230G
• Other names: NCP1230GEVBOS

PIN FUNCTION DESCRIPTION
HV
Pin No.
+
CBulk
1
2
3
4
5
6
7
8
MC33262/33260
1
2
3
4
Pin Name
PFC V
CS/OVP
GND
DRV
V
NC
HV
FB
CC
CC
8
7
6
5
This pin provides
the bias voltage to
the PFC controller.
Feedback Signal
Current Sense
IC Ground
Driver Output
V
High−Voltage
CC
Function
Input
−
PFC_V
Figure 1. Typical Application Example
OVP
CC
This pin is a direct connection to the V
standby and during the startup sequence, the switch is open and the PFC V
shut down. As soon as the aux. winding is stabilized, Pin 1 connects to the V
and provides bias to the PFC controller. It goes down in standby and fault conditions.
An optocoupler collector pulls this pin low to regulate. When the current setpoint
reaches 25% of the maximum peak, the controller skips cycles.
This pin incorporates three different functions: the current sense function, an internal
ramp compensation signal and a 3.0 V latch−off level which latches the output off
until V
With a drive capability of +500 mA / −800 mA, the NCP1230 can drive large Qg
MOSFETs.
The controller accepts voltages up to 18 V and features a UVLO turn−off threshold of
7.7 V typical.
This pin connects to the bulk voltage and offers a lossless startup sequence. The
charging current is high enough to support the bias needs of a PWM controller
through Pin 1.
http://onsemi.com
1
2
3
4
CC
Ramp Comp
NCP1230
is recycled.
10 k
2
8
7
6
5
OVP
Pin Description
V
CC
CC
Cap
pin (Pin 6) via a low impedance switch. In
−
−
Rsense
GN
D
+
CC
GND
CC
is
V
pin
out