NCP1212_05 ONSEMI [ON Semiconductor], NCP1212_05 Datasheet - Page 19
NCP1212_05
Manufacturer Part Number
NCP1212_05
Description
Current Mode PWM Controller for Both Forward and Flyback Converters
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.NCP1212_05.pdf
(22 pages)
- Current page: 19 of 22
- Download datasheet (209Kb)
Channel 2 is the CS input pin waveform.
1
2
The skip mode operation waveform at light load is shown in Figure 44. Where Channel 1 is the gate drive pin waveform and
0.1
3
PNP
Q1
4
3 K
R2
100
VCC
Q2
PNP
R8
2.5 K
CS
FB
Figure 43. Suggested Solution for Better Light Load Regulation
9 K
Figure 44. Skip Mode Switching Waveform at Light Load
+5 V
3 R
+
−
300 ns
1 V
LEB
R
http://onsemi.com
Block
OSC
NCP1212
Output
Output
19
+
+
−
−
Current
Limit
Reset
Set
2
3
4
1
R
S
F/F
Q
Q
Totem Pole
Driver
Output
Related parts for NCP1212_05
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
300 Watt, SOT-23 Low Capacitance TVS for High Speed Line Protections
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
SWITCHMODE Power Rectifier
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
TMOS E−FET Power Field Effect Transistor DPAK for Surface Mount
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Trench Power MOSFET -20 V, Single P-Channel, SOT-23
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 12 A, 60 V
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 3.0 Amps 60 Volts N−Channel
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2.0 A, 60 V, Logic Level
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2 Amps, 500 Volts P−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 23 Amps, 25 Volts N−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET -60 V, -27.5 A, P-Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 30 Amps, 200 Volts N−Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
N-Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
60 V, 60 A, N-Channel TO-220 and D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet: