ON NCP1234AD100R2G

隔离9.5V ~ 28V

Overview

Power supply secondary side, synchronous rectification controllers. Fixed frequency flyback and forward PWM controllers.

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

Features

Isolated Output Isolation
Packaged with 8-SOIC (0.154, 3.90mm Width), 7 Leads
Switching Frequency at 100kHz
With 7 pins
Output Current at 500mA
Operating Supply Voltage at the range of 28V

Surface Mount Mounting Type

Applications

There are a lot of ON Semiconductor
NCP1234AD100R2G AC DC Converters applications.

• DVD players
• Records
• Linear Adapter Replacements
• Chargers for cell/cordless phones
• PDAs
• MP3
• Portable audio
• Adapters
• Networking
• Battery Chargers