DC2879A开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS规格书PDF中文资料

DC2879A属于开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS。由亚德诺半导体技术有限公司制造生产的DC2879A评估板 - DC/DC 与 AC/DC（离线）SMPS该系列产品提供了一种方便的方法，可对开关模式电源转换所用的器件（包括 DC-DC 和 AC-DC 型）进行性能或特性评估。“稳压器”（包含内部电源开关装置）和“控制器”（设计为控制外部电源开关）之类的器件均包括在内。

DESCRIPTION

Demonstration circuit 2879A is a high efficiency, high

power density hybrid converter. It can deliver 12V/25A

with an input voltage from 36V to 60V (up to 65V during

transients). This demo board features the LTM®4660,

which uses an architecture that merges soft-switching

switched capacitor topology with a traditional step-down

converter to provide superior efficiency compared to the

traditional switching architectures. It offers a high efficiency/

high density and cost effective solution for nonisolated

intermediate bus applications in power distribution,

datacom and telecom.

Due to its current mode control architecture, multiple

LTM4660s can be operated in a parallel, multiphase configuration

with excellent current sharing and low output

voltage ripple to enable much higher power applications.

Other benefits include low EMI emissions due to a softswitched

front end and reduced MOSFET stress.

The LTM4660 design eliminates the inrush current typically

associated with switched capacitor circuits by prebalancing

the capacitors on start-up. The LTM4660 also

monitors system voltage, current and temperature for

faults. It stops switching and pulls the FAULT pin low

when a fault condition occurs. An onboard timer can be

set for appropriate restart/retry times.

Additional features include ±1.5 output voltage accuracy

over temperature, a clock output for multiphase

operation, a power good output signal, short-circuit protection,

monotonic output voltage start-up, optional external

reference, undervoltage lockout and internal charge

balance circuitry.

The LTM4660 data sheet must be used in conjunction

with this demo board manual.