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JT3028ON Datasheet

Part Name Description Manufacturer
JT3028ON High Performance Current Mode PWM Switching Power Supply Controller ETC
ETC 
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JT3028ON image

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Overview:
JT3028ON is a highly integrated, high performance The current mode PWM controller chip. For electric Source adapter and other small-power switching power supply equipment. In order to reduce the standby power consumption to meet the higher green Environmental standards, the chip provides a pulse mode (Burst Mode) function. That light load or no load conditions Next, JT3028ON can reduce the linear chip opening Switching frequency, thus reducing the switching loss, for lower Standby power consumption, improve the conversion efficiency of the power system.

Features: 
■ Burst Mode function;
■ Low start-up current (5uA) and low operating current
(2.4mA);
■ Internal LEB;
■ Built-in synchronized slope compensation;
■ Current mode operation;
■ External programmable PWM switching frequency;
■ External programmable over-temperature protection (OTP);
■-by-cycle current limit protection (OCP);
■ optional built-in overvoltage protection system VDD(OVP);
■ Low voltage shutdown function (UVLO);
■ gate drive output voltage clamp (17.8V);
■ Constant output power limit;
■ overload protection (OLP); Produces no audio noise
■ work

Application:
Universal switching power supply device and offline AC / DC Anti Flyback power converter:
■ Laptop power adapter;
■ STB power supply;
■ Open switching power supply;
■ Battery Charger

 

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