EVL6566B-65W: 65W, 12V @ 5.42A, 90 ~ 265Vin

Summary

This note describes the characteristics and the features of a 65 W reference board, wide-range input mains, AC-DC adapter using the L6566B controller. The peculiarities of this design are the low standby input consumption (<200mW @ 265Vin AC), low cost and small size.

The topology of this converter is the classical Flyback working in continuous and discontinuous conduction mode at fixed frequency. The controller, the new L6566B, is an extremely versatile current mode primary controller ICs.

The nominal switching frequency, 80 KHz, has been chosen to get a compromise between the transformer size and the converter efficiency.

Specifications

Manufacturer STMicroelectronics
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Single Output
Eval Board Part Number 497-6452-ND
Eval Board Supplier STMicroelectronics
Eval Board Board not Stocked
AC Voltage 115 V
230 V
Universal (115 / 230V)
Outputs and Type 1 Isolated
Voltage Out 12 V
Current Out 5.42 A
Output Power 65 W
Features Over Voltage Protection
PFC
Short Circuit Protection
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >82%, 230V in, 12V @ 1.35 ~ 5.42 A
>82%, 115V in, 12V @ 1.35 ~ 5.42 A
No-load Input Power @ Voltage 77 mW @ 115 V
162 mW @ 230 V
Switching Frequency 80 kHz
Internal Switch No
Component Count + Extras 65 + 2
Voltage In 90 ~ 264 VAC
Design Author STMicroelectronics
Application / Target Market Battery Chargers
Computers
LCD TV / Monitor
Set-Top Boxes
Main I.C. Base Part L6566B
Date Created By Author
Date Added To Library 2011-03

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