Anterwell Technology Ltd.

          Anterwell Technology Ltd.

 

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NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
We have cooperate with Anterwell near 7 years. always very good quality good service. Original and very fast delivery. A very good partner.

—— Clemente From Brzail

I'm doing business with Anterwell from 2006, from small to big orders. Reliable!

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Sharon is a very good girl, we are very happy to cooperate with her. Competitive price and professional. Never have quality problem with them.

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We always buy XILINX parts from Anterwell. High quality with good price. Hope can have more business with you.

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NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

China NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters supplier

Large Image :  NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

Product Details:

Place of Origin: original factory
Brand Name: Anterwell
Certification: new & original
Model Number: NCP1234AD65R2G

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiate
Packaging Details: Please contact me for details
Delivery Time: 1 day
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 8400pcs
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Detailed Product Description
Max Working Temperature: +125°C Min Working Temperature: -40°C
Switching Frequency: 65 KHz Current Output: 500 MA
Packing: Reel Package: SOIC-7
VDD POWER: 28V Factory Packing Quantity: 2500
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NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

 

Features

Fixed−Frequency Current−Mode Operation with Built−In Ramp Compensation

65 kHz or 100 kHz Oscillator Frequency version

Frequency Foldback then Skip Mode for Maximized Performance in Light Load and Standby Conditions 

Timer−Based Overload Protection with Latched (option A) or Auto−Recovery (option B) Operation

High−voltage Current Source with Dynamic Self−Supply, Simplifying the Design of the VCC Capacitor Frequency Modulation for Softened EMI Signature, including during Frequency Foldback mode

Adjustable Overpower Compensation  

Latch−off Input for Severe Fault Conditions, Allowing Direct Connection of an NTC for Overtemperature Protection (OTP)

VCC Operation up to 28 V, with Overvoltage Detection 500 mA Peak Source/Sink Current Drive Capability

4.0 ms Soft−Start

Internal Thermal Shutdown

Pin−to−Pin Compatible with the Existing NCP12xx Series

These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

 

NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

 

Typical Applications

AC−DC Adapters for Notebooks, LCD, and Printers

Offline Battery Chargers

Consumer Electronic Power Supplies

 Auxiliary/Housekeeping Power Supplies

 

NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

 

 

 

PIN FUNCTION DESCRIPTION

 

Pin No Pin Name Function Pin Description
1 LATCH Latch−Off Input Pull the pin up or down to latch−off the controller. An internal current source allows the direct connection of an NTC for over temperature detection
2 FB Feedback An optocoupler collector to ground controls the output regulation.
3 CS Current Sense This Input senses the Primary Current for current−mode operation, and Offers an overpower compensation adjustment.
4 GND   IC Ground
5 DRV Drive output Drives external MOSFET
6 VCC VCC input This supply pin accepts up to 28 Vdc, with overvoltage detection
7      
8 HV High−voltage pin Connects to the bulk capacitor or the rectified AC line to perform the functions of Start−up Current Source and Dynamic Self−Supply

 

 

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Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

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