Datasheet > SC2450_07

SC2450_07

更新时间： 2024-10-01 04:05:27

品牌	Logo	应用领域
商升特 - SEMTECH		控制器
页数	文件大小	规格书
21页	1558K
描述
BI-Phase/Dual Controller

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SC2450_07 数据手册

SC2450

BI-Phase/Dual Controller

POWER MANAGEMENT

Features

Description

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 8.5-30V

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 MOSFET switching loss.

ꢀ Selectable dual output or bi-phase operation

ꢀ Direct drive for N-channel MOSFETs

ꢀ Undervoltage lockout

ꢀ Synchronization to external clock

ꢀ Multi-converter synchronization

ꢀ Soft start

ꢀ Fast transient response

ꢀ Max duty cycle 45%

ꢀ Output over voltage protection

ꢀThermal shutdown

ꢀ28-Pin SO lead free package available. Fully WEEE

and RoHS compliant

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.

Applications

Capable of driving MOSFETs via external driver transis-

tors for phase currents beyond 20A.

ꢀ

Power supplies for advanced telecoms/datacoms

SO IP, Ethernet and PABX power supplies

Typical Application Circuit

www.semtech.com

Revision: January 17, 2007

12 3 4 5 6 7...21

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