SC2450 datasheet(1/20 Pages) SEMTECH

No. de pieza	SC2450

Descripción Electrónicos	BI-Phase/Dual Controller

PDF	20 Pages

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Fabricante Electrónico	SEMTECH [Semtech Corporation]

Página de inicio	http://www.semtech.com

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POWER MANAGEMENT

1

www.semtech.com

SC2450

BI-Phase/Dual Controller

.eatures

Applications

Revision 2, August 2001

Typical Application Circuit

Description

K Selectable dual output or bi-phase operation

K Direct drive for N-channel MOS.ETs

K Undervoltage lockout

K Synchronization to external clock

K Multi-converter synchronization

K Soft start

K .ast transient response

K Max duty cycle 45%

K Output over voltage protection

K Power supplies for advanced telecoms/datacoms

K SO IP, Ethernet and PABX power supplies

The SC2450 can be configured as a dual converter or a

bi-phase converter for high current applications. The part

is designed for point of use power supplies with 10-30V

nominal backplane power sources. Multiple supplies can

be synchronized together to prevent low frequency har-

monics on the backplane. The power dissipation is con-

trolled using a novel low voltage supply technique, allow-

ing high speed and integration, with the high drive cur-

rents to ensure low MOS.ET switching loss.

The use of high speed switching circuits allows very nar-

row PWM outputs down to 15:1 voltage ratios. Single

pin compensation for each channel simplifies develop-

ment as well as reducing external pin count.

Capable of driving MOS.ETs via external driver transis-

tors for phase currents beyond 20A.

Número de pieza similar - SC2450

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SC2450 Datasheet(PDF) 1 Page - Semtech Corporation

SC2450 Datasheet(HTML) 1 Page - Semtech Corporation

Número de pieza similar - SC2450

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