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GL8258N

grenergy
Part Number GL8258N
Manufacturer grenergy
Description Primary Feedback PWM Controller
Published Jul 21, 2014
Detailed Description Preliminary GL8258N/58AN Primary Feedback PWM Controller for Flyback Application Features Primary Sensing for Constant-V...
Datasheet PDF File GL8258N PDF File

GL8258N
GL8258N

Overview
Preliminary GL8258N/58AN Primary Feedback PWM Controller for Flyback Application Features Primary Sensing for Constant-Voltage(CV) and Constant-Current(CC) Regulation Pulse by Pulse Current Limiting (OCP) Low Start-Up Current (6uA) Fixed Frequency for Driving Power MOS VCC Over-Voltage Protection Output Over-Voltage Protection Cable Compensation for CV regulation (GL8258AN only) SOT-26 Package with Few External Components Needed Description The GL8258N/58AN is an excellent primary side feedback control PWM IC.
It’s integrated constant voltage (CV) and constant current (CC) regulation functions.
While it operates on CV mode, it acts as a voltage source.
While it operates on CC mode, it acts as a current source.
It minimizes the components counts and is available in a tiny SOT-26 package.
Those make it an ideal design for low cost application.
It provides functions of low startup current, greenmode power-saving operation, VCC over-voltage protection, and FB pin abnormal conditions sensing Application LED Lighting to prevent the circuit being damaged from the abnormal conditions.
Ordering and Marking Information SOT-26 Code 1 8 Year 2008 Code 2 1 Month Jan.
9 2009 2 Feb.
A 2010 3 Mar.
B 2011 4 Apr.
● ● ● G 2016 9 Sep.
H 2017 A Oct.
I 2018 B Nov.
J 2019 C Dec.
Grenergy OPTO Inc.
reserves the right to make changes to improve reliability or manufacture ability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.
2012.
05 Ver.
C Copyright grenergy OPTO, Inc.
www.
grenergy-ic.
com 1 Preliminary GL8258N/58AN Pin Configuration TOP VIEW Pin Description Pin No.
1 2 3 4 5 6 Name VCC GND FB CS COMP OUT Power supply pin Ground Connecting to a resistor divider from aux.
winding to ground, the resistor divider ratio determines the aux.
winding and secondary output voltage Current sense pin, connect to sense the power MOS current Voltage loop Gm error amplifier output, by connecting an R series with...


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