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grenergy - Primary Feedback PWM Controller

Numéro de référence GL8258
Description Primary Feedback PWM Controller
Fabricant grenergy 
Logo grenergy 





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GL8258 fiche technique
Preliminary GL8258
Primary Feedback PWM Controller for Flyback Application
Features
Primary feedback control without secondary
feedback signal
Constant-Voltage(CV) and
Constant-Current(CC) regulation
Pulse by pulse Current Limiting
Low start-up Current (6uA)
Built-in soft start
Wide VCC operation range
VCC Over-Voltage Protection
Output Over-Voltage Protection
Cable Compensation for CV regulation
SOT-26 package, with few external
components needed
Application
Low power adapter
Cell phone charger
Replacement for linear adapter
Description
The GL8258 is an excellent primary side feedback
controller. It’s integrated constant voltage (CV) and
constant current (CC) regulation functions. While it
operates on CV mode, 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, green-
mode power-saving operation,. Also, the GL8258 is
built-in the VCC over-voltage protection and FB pins
to prevent the circuit being damaged from the
abnormal conditions.
Ordering and Marking Information
SOT-26
Code 1 8 9 A B
GH IJ
Year 2008 2009 2010 2011
2016 2017 2018 2019
Code 2 1 2 3 4 ● ● ● 9 A B C
Month Jan. Feb. Mar. Apr.
Sep. Oct. Nov. 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.
2011.08 Ver.A Copyright grenergy OPTO, Inc. www.grenergy-ic.com
1

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