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SC2604EVB

更新时间： 2024-09-27 09:33:35

品牌	Logo	应用领域
商升特 - SEMTECH		驱动器控制器
页数	文件大小	规格书
14页	361K
描述
Simple PWM Boost Controller with Input Disconnect FET Drive

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中文翻译

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数据手册

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SC2604EVB 数据手册

SC2604

Simple PWM Boost Controller

with Input Disconnect FET Drive

POWER MANAGEMENT

Features

Description



Input Voltage Range: 4.5V to ꢀ3.5V

ꢀ% Voltage Reference Accuracy

Up to 95% Eﬃciency

Input Disconnect FET Drive

In-rush Current Control

Internal Compensation

Programmable Current Limit

Programmable Soft Start

800mA Typical PWM Gate Drive

400kHz Switching Frequency

Under Voltage Lockout

<200uA Shutdown Current

-40^oC to +85^oC Temperature Range

MSOP-8 Package, Fully WEEE and RoHS Compliant

The SC2604 is a versatile, low-cost, voltage-mode PWM

controller designed for boost DC/DC power supply

applications. It features input disconnect FET driver

allowing power source and load separation at shutdown

mode, which eliminates possible leakage current from

source to load. Also, it prevents catastrophic failure when

output is shorted during operation.

The SC2604 also includes temperature compensated

voltage reference, internal ramp, current limit comparator,

internally compensated error ampliﬁer, and ﬂoating driver

with charge pump. Programmable soft start controls

in-rush current and reduces output voltage overshoot.

Hiccup mode over-current protection allows system auto-

retry and ease of trouble shooting.

Applications

Internally compensated feedback loop makes power

supply design simple, and eliminates the need for external

compensation network.



Portable Devices

Flat Panel TV

TV Set Top Box

Auxiliary Supplies

Peripheral Card Supplies

Industrial Power Supply

High Density DC/DC Conversion

The SC2604 is available in MSOP-8 package with rated

temperature range of -40^oC to +85^oC.

Typical Application Circuit

Figure 1. 12V to 25V/1A Boost Converter with Over Current Protection

www.semtech.com

January 4, 2008

ꢀ

12 3 4 5 6 7...14

中文翻译

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