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GR8876

grenergy
Part Number GR8876
Manufacturer grenergy
Description Green-Mode PWM Controller
Published Nov 7, 2014
Detailed Description GR8876 Green-Mode PWM Controller with Integrated Protections Features High-voltage (500V) startup circuit Current mode P...
Datasheet PDF File GR8876 PDF File

GR8876
GR8876

Overview
GR8876 Green-Mode PWM Controller with Integrated Protections Features High-voltage (500V) startup circuit Current mode PWM Very low startup current (<20uA) Under-voltage lockout (UVLO) Non-audible-noise green-mode control Programmable switching frequency Cycle-by-cycle peak current limiting Internal leading-edge blanking Internal slope compensation Internal 4ms soft start (Fs = 65KHz) VCC over-voltage clamp Gate output voltage clamp Soft driving for reducing EMI Over-voltage protection (OVP) on Vcc pin Over-load protection (OLP) Over-current protection (OCP) on CS pin 500mA driving capability Applications Open-frame SMPS ● Switching AC/DC adapter and battery charger Description The GR8876 is a highly-integrated, low startup current, current mode PWM controller with green-mode function and high-voltage start up circuit.
A high-voltage current source supplies the start up current and the traditional start up resistance can be saved in order to limit the power cost.
The controller a...


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