Datasheet Linear Technology LTC3806 — Ficha de datos

Fabricante	Linear Technology
Serie	LTC3806

Controlador síncrono de retorno DC / DC

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PDF, 219 Kb, Idioma: en, Archivo subido: sept 23, 2017, Páginas: 20
Synchronous Flyback DC/DC Controller

Extracto del documento

Embalaje

	LTC3806EDE#PBF	LTC3806EDE#TRPBF
N	1	2
Package	4x3 DFN-12 Dibujo del esquema del paquete	4x3 DFN-12 Dibujo del esquema del paquete
Package Code	DE/UE	DE/UE
Package Index	05-08-1695	05-08-1695
Pin Count	12	12

Paramétricos

Parameters / Models	LTC3806EDE#PBF	LTC3806EDE#TRPBF
Demo Boards	DC659A	DC659A
Design Tools	LTspice Model	LTspice Model
Export Control	no	no
Frequency, kHz	250	250
Integrated Inductor	no	no
Isupply, mA	1	1
Monolithic	no	no
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Polyphase	no	no
Switch Current, A	2	2
Synchronous	yes	yes
Topology	Flyback	Flyback
Vin Max, V	75	75
Vin Min, V	10	10
Vout Maximum	3, 5, 12 and higher	3, 5, 12 and higher
Vout Min, V	0.8	0.8

Plan ecológico

	LTC3806EDE#PBF	LTC3806EDE#TRPBF
RoHS	Obediente	Obediente

Notas de Diseño

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Flyback Controller Improves Cross Regulation for Multiple Output Applications &mdash DN344
PDF, 76 Kb, Archivo publicado: sept 1, 2004
Extracto del documento
Flyback Controller Improves Cross Regulation for Multiple
Output Applications вЂ“ Design Note 344
Tom Hack
Also, outputs remain uncoupled when the rectiп¬Ѓers
are off, which contributes to poor cross regulation. Introduction
Flyback converters are often used in power supplies
requiring low to medium output power at several output
voltages. With a п¬‚yback, multiple outputs incur little additional cost or complexityвЂ”each additional output requires
only another transformer winding, rectiп¬Ѓer and output
п¬Ѓlter capacitor. Power over Ethernet (PoE) applications
may require several low to medium power outputs
and are good candidates for multiple output п¬‚yback
converters. The LTC В®3806 is a new п¬‚yback controller that improves
load and cross regulation for multiple output п¬‚yback
converters. Multi-output systems that previously used
post regulators, multiple switching supplies or other
methods to provide tight output voltage tolerances can
now use lower cost п¬‚yback converters. The LTC3806
uses forced continuous conduction operation improving
cross regulation by keeping the rectiп¬Ѓers on and the
outputs coupled (via transformer action) for a larger
fraction of each power conversion cycle. The LTC3806
also uses synchronous rectiп¬Ѓcation to reduce rectiп¬Ѓer …

Linea modelo

Serie: LTC3806 (2)

LTC3806EDE#PBF LTC3806EDE#TRPBF

Clasificación del fabricante

Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers