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NCP1203 PWM Current-Mode Controller Datasheet


NCP1203

ON Semiconductor
NCP1203
NCP1203
Part Number NCP1203
Manufacturer ON Semiconductor (https://www.onsemi.com/)
Title NCP1203 - Switching Controller, Current-mode, 0.25A, 47kHz Switching Freq-Max, CMOS, PDIP8 '
Description Pin No. Pin Name Function 1 Adj Adjust the skipping peak current 2 FB Sets the peak current setpoint 3 CS Current sense input 4 GND The IC ground 5 Drv Driving pulses 6 VCC 7 NC Supplies the IC − 8 HV Ensure a clean and lossless startup sequence Pin Description This pin le...
Features a high−voltage startup FET which ensures a clean and loss−less startup sequence. Its current−mode control naturally provides good audio−susceptibility and inherent pulse−by−pulse control. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so−called skip cycle mode and provides improved efficiency at light loads while offering excellent performance in standby conditions. Because this occurs at a user adjustable low peak current, no acoustic noise takes place. The NCP1203 also includes an efficient protective circuitry wh...

Document Datasheet NCP1203 datasheet pdf (705.91KB)
Distributor Distributor
Rochester Electronics
All other distributors
Stock 3126 In Stock
Price
1000 units: 0.2128 USD
500 units: 0.2253 USD
100 units: 0.2353 USD
25 units: 0.2453 USD
1 units: 0.2503 USD
BuyNow BuyNow Buy Now (Manufacturer a onsemi NCP1203P40)



ON Semiconductor
NCP1209
Part Number NCP1209
Manufacturer ON Semiconductor
Title PWM Voltage Mode Controller
Description NCP1209 Product Preview PWM Voltage Mode Controller The NCP1209P series is an enhanced version of the MC44608P series. It is a high performance vo.
Features a very high efficiency stand
  –by management consisting in a fully controlled and adaptable Pulsed Mode operation working in conjunction with a secondary reconfiguration. Features http://onsemi.com SMPS CONTROLLER WITH ENHANCED STAND
  –BY MANAGEMENT MARKING DIAGRAMS 8 8 1 SO
  –8 CASE 751 PLASTIC 1 8 DIP
  –.

Document NCP1209 datasheet pdf


ON Semiconductor
NCP1207B
Part Number NCP1207B
Manufacturer ON Semiconductor
Title PWM Controller
Description ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin PinName Function ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1 Demag Core reset d.
Features
• Free−Running Borderline/Critical Mode Quasi−Resonant Operation
• Current−Mode with Adjustable Skip−Cycle Capability
• No Auxiliary Winding VCC Operation
• Auto−Recovery Overcurrent Protection
• Latching Overvoltage Protection
• External Latch Triggering, e.g. Via Overtemperature Signal
• 500 mA Pe.

Document NCP1207B datasheet pdf


ON Semiconductor
NCP1207A
Part Number NCP1207A
Manufacturer ON Semiconductor
Title PWM Controller
Description ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin PinName Function ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1 Demag Core reset d.
Features
• Free−Running Borderline/Critical Mode Quasi−Resonant Operation
• Current−Mode with Adjustable Skip−Cycle Capability
• No Auxiliary Winding VCC Operation
• Auto−Recovery Overcurrent Protection
• Latching Overvoltage Protection
• External Latch Triggering, e.g. Via Overtemperature Signal
• 500 mA Pe.

Document NCP1207A datasheet pdf


ON Semiconductor
NCP1207
Part Number NCP1207
Manufacturer ON Semiconductor
Title PWM Current-Mode Controller
Description ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPinNo. PinName Function ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1 Demag Core reset.
Features
• Pb−Free Packages are Available*
• Free−Running Borderline/Critical Mode Quasi−Resonant Operation
• Current−Mode with Adjustable Skip−Cycle Capability
• No Auxiliary Winding VCC Operation
• Auto−Recovery Overcurrent Protection
• Latching Overvoltage Protection
• External Latch Triggering, e.g. Via .

Document NCP1207 datasheet pdf


ON Semiconductor
NCP1205
Part Number NCP1205
Manufacturer ON Semiconductor
Title Single Ended PWM Controller
Description Pin No. PDIP--8 PDIP--14 SOIC--16 Pin Name 1 1 1 HV Function Startup rail 2 3 3 4 4 5 4 Demag Zero primary--current detection 5 .
Features
 Natural Drain Valley Switching for Lower EMI and Quasi--Resonant Operation (QR)
 Smooth Frequency Foldback for Low Standby and Minimum Ripple at Light--Load
 Adjustable Maximum Switching Frequency
 Internal 200 ns Leading Edge Blanking on Current Sense
 250 mA Sink and Source Driver
 Wide Ope.

Document NCP1205 datasheet pdf



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