AN2521 datasheet(1/33 Pages) STMICROELECTRONICS

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AN2521 Datasheet(PDF) 1 Page - STMicroelectronics

Part #	AN2521

Description	19 V - 75 W laptop adapter with tracking boost PFC

PDF	33 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 33 page

October 2007

Rev 1

1/33

AN2521

Application note

19 V - 75 W laptop adapter with tracking boost PFC

pre-regulator, using the L6563 and L6668

Introduction

This application note describes the characteristics and features of a 75 W wide range input

mains and power-factor-corrected ac-dc adapter evaluation board. Its electrical specification

is tailored to a typical high-end portable computer power adapter. The distinctive attributes

of this design are the very low standby input consumption (< 0.3 W at 265 V), the excellent

global efficiency (> 85%) for a two stage architecture and the low cost.

Figure 1.

L6668 and L6563-75W adapter evaluation board (EVAL6668-75W)

www.st.com

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	AN2523	216Kb / 23P	Migrating from STR91xF to STR91xFA 07-May-2007
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Panasonic Semiconductor	AN2526NFH	442Kb / 35P	Automotive LCD TV signal processor IC
Freescale Semiconductor...	AN2528	654Kb / 28P	Standard Space Vector Modulation TPU Function Set (svmStd)
STMicroelectronics	AN2528	860Kb / 21P	Very wide input voltage range 6 W SMPS for metering 05-Jul-2007

Manufacturer	Part #	Datasheet	Description
Power Integrations, Inc...	DI-22	44Kb / 2P	70 W, 19 V External Laptop Adapter
STMicroelectronics	EVAL6563-80W	202Kb / 5P	L6563 80W High performanceTM PFC with active tracking boost function 10-Jan-2007
STMicroelectronics	EVL6566A-75WADP	202Kb / 8P	19 V - 75 W laptop adapter with tracking boost PFC pre-regulator, using the L6563 and the L6566A 28-Sep-2007
Cooper Bussmann, Inc.	CTX22-16885	233Kb / 1P	INDUCTOR, BOOST PFC W/AUX
STMicroelectronics	EVL6699-90WADP	217Kb / 5P	19 V - 90 W adapter with PFC for laptop computers based on the L6563H and L6699 02-Jul-2012
Lite-On Technology Corp...	PA-1121-10	286Kb / 3P	Laptop Power Adapter
	PA-1131-26	310Kb / 3P	Laptop Power Adapter
	PA-1131-76	310Kb / 3P	Laptop Power Adapter
	PA-1151-08	287Kb / 3P	Laptop Power Adapter
	PA-1900-88TA	336Kb / 3P	Laptop Power Adapter

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