NCP1012GEVB ON Semiconductor, NCP1012GEVB Datasheet - Page 3

• Manufacturer Part Number: NCP1012GEVB
• Description: EVAL BOARD FOR NCP1012G
• Manufacturer: ON Semiconductor

Specifications of NCP1012GEVB

• Design Resources: NCP1012 Eval Brd BOM NCP1012GEVB Gerber Files NCP1012 Eval Brd Schematic
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Voltage - Output: 12V
• Voltage - Input: 230VAC
• Regulator Topology: Flyback
• Frequency - Switching: 100kHz
• Board Type: Fully Populated
• Utilized Ic / Part: NCP1012
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP1012G
• Other names: NCP1012GEVBOS

GND
V
PIN FUNCTION DESCRIPTION
(SOT- -223)
NC
FB
CC
Pin No.
1
--
--
2
3
--
--
4
1
2
3
4
*Vclamp = VCC
Vclamp*
IV
CC
4 V
18 k
PDIP- -7/Gull Wing)
I?
(PDIP- -7,
V
Pin No.
CC
OFF
1
2
3
4
5
--
7
8
Error flag armed?
+ 200 mV (8.7 V Typical)
Startup Source
Management
EMI Jittering
UVLO
Pin Name
Overload?
Figure 2. Simplified Internal Circuit Architecture
Drain
GND
GND
GND
V
NC
FB
CC
--
High when V
Drain
Powers the Internal Circuitry
Feedback Signal Input
Drain Connection
65, 100 or
http://onsemi.com
Iref = 7.4 mA
130 kHz
The IC Ground
The IC Ground
The IC Ground
Clock
Function
CC
0.5 V
IV
Soft--Start
< 3 V
CC
--
--
3
+
--
Set
+
--
DCmax = 65%
Startup Sequence
Overload
R
Flip--Flop
Reset
Reset
S
Q
This pin is connected to an external capacitor of typic-
ally 10 mF. The natural ripple superimposed on the
V
proved standby performance, an auxiliary V
connected to Pin 1. The V
shunt which serves as an opto fail--safe protection.
By connecting an optocoupler to this pin, the peak
current setpoint is adjusted accordingly to the output
power demand.
The internal drain MOSFET connection.
CC
participates to the frequency jittering. For im-
Q
Driver
V
--
+
CC
Description
250 ns
L.E.B.
CC
--
--
--
--
--
also includes an active
Rsense
Drain
CC
8
7
5
can be
Drain
GND
GND