Datasheet > RT7730

RT7730

更新时间： 2024-09-22 00:04:27

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
13页	286K
描述
Burst Triple-mode PWM Flyback Controller

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中文翻译

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数据手册

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RT7730 数据手册

Preliminary

RT7730

Burst Triple-mode PWM Flyback Controller

General Description

Features

^zVery Low Start-Up Current (<30μA)

^z10/14V UVLO

The RT7730 is a high-performance, low cost, low startup

current, current mode PWM controller with burst triple-

mode to support green mode power saving operation. The

RT7730 integrates functions of Soft Start, Under VoItage

Lockout (UVLO), Leading Edge Blanking (LEB), Over

Temperature Protuction (OTP), internal slope

compensation. It provides the users a superior AC/DC

power application of higher efficiency, low external

component counts and lower cost solution.

^zSoft Start Function

^zCurrent Mode Control

^zInternal Leading-Edge Blanking

^zBuilt-in Slope Compensation

^zBurst Triple-Mode PWM for Green-Mode

^zCycle-by-Cycle Current Limiting

^zSecondary Rectifier Short Protection

^zFeedback Open Protection

To protect the external power MOSFET from being

damaged by supply over voltage, the RT7730 output driver

is clamped at 13.5V. Furthermore, RT7730 features fruitful

protections like OLP (Over Load Protection) ,OVP (Over

Voltage Protection) to eliminate the external protection

circuits and provide reliable operation. RT7730 is available

in SOT-23-6 andDIP-8 packages.

z Output Over Voltage Protection

z Over Temperature Protection

z Over Load Protection

z Soft Driving for Reducing EMI

z High Noise Immunity

z Opto Coupler Short Protection

z RoHS Compliant and 100% Lead (Pb)-Free

Applications

z Adaptor and Battery Charger

z ATX Standby Power

z Set Top Boxes (STB)

z DVDand CD(R)

z TV/Monitor Standby Power

z PC Peripherals

Typical Application Circuit

Vo+

Vo-

Mains

(90V to 265V)

VDD

GATE

RT7730

COMP

GND

DS7730-00PT05 June 2007

www.richtek.com

12 3 4 5 6 7...13

中文翻译

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