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GM3844AS8R中文資料GAMMA數(shù)據(jù)手冊(cè)PDF規(guī)格書

GM3844AS8R
廠商型號(hào)

GM3844AS8R

功能描述

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

文件大小

628.03 Kbytes

頁(yè)面數(shù)量

19 頁(yè)

生產(chǎn)廠商 GAMMA electronics
企業(yè)簡(jiǎn)稱

GAMMA

中文名稱

GAMMA electronics官網(wǎng)

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更新時(shí)間

2025-4-10 11:38:00

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GM3844AS8R規(guī)格書詳情

Description

GM384XA series is high performance with fixed frequency current mode PWM controllers. They are specially designed for off-Line and DC-to-DC converter applications with minimum external components. These devices feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output which is suitable for driving MOSFETs.

The under voltage lock-out (U.V.L.O.) is designed to operated with 0.17mA typ. start-up current, allowing an efficient bootstrap supply voltage design. The U.V.L.O. thresholds for the AMC3842A/44A are 16V (on) and 10V (off) which are ideal for off-line applications. The corresponding typical threshold for the GM3843A/45A is 8.4V (on) and 7.6V (off). The GM3842A/43A can operated within 100 duty cycle and the GM3844A/45A can operated within 50 duty cycle.

Features

? Low Start-Up and Operating Current

? Automatic Feed Forward Compensation

? Current Mode Operating Frequency up to 500KHz

? Trimmed Oscillator Discharge Current for Precise Duty Cycle Control

? Latching PWM for Cycle-By-Cycle Current Limiting

? Under Voltage Lockout with Hysteresis

? High Current totem Pole Output Stage

Application

Off-line flyback or forward converters

DC-to DC buck boost converter

Monitor Power Supply

產(chǎn)品屬性

  • 型號(hào):

    GM3844AS8R

  • 制造商:

    GAMMA

  • 制造商全稱:

    GAMMA

  • 功能描述:

    CURRENT MODE PWM CONTROLLER

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