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NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters
NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters
Specifications
Model Number :
NCP1234AD65R2G
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Supply Ability :
8400pcs
Delivery Time :
1 day
Packaging Details :
Please contact me for details
Description :
Converter Offline Flyback Topology 65kHz 7-SOIC
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
Description

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

Typical Applications

AC−DC Adapters for Notebooks, LCD, and Printers

Offline Battery Chargers

Consumer Electronic Power Supplies

Auxiliary/Housekeeping Power Supplies

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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Product tags

isuzu 24v adaptor

,

svc voltage regulator

,

invt inverter manual
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NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

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Product Detail
Model Number :
NCP1234AD65R2G
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Contact Supplier
NCP1234AD65R2G Fixed Frequency Current Mode Controller for Flyback Converters

ChongMing Group (HK) Int'l Co., Ltd

Active Member
3 Years
shenzhen
Since 2008
Business Type :
Distributor/Wholesaler
Main Products :
Flash Memory IC Chip, Programmable IC Chip, Computer IC Chips
Total Annual :
5000000-7000000
Employee Number :
80~100
Certification Level :
Active Member
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