位置:GM3845A > GM3845A详情

GM3845A中文资料

厂家型号

GM3845A

文件大小

628.03Kbytes

页面数量

19

功能描述

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

CURRENT MODE PWM CONTROLLER

数据手册

下载地址一下载地址二到原厂下载

生产厂商

GAMMA

GM3845A数据手册规格书PDF详情

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

GM3845A产品属性

  • 类型

    描述

  • 型号

    GM3845A

  • 制造商

    GAMMA

  • 制造商全称

    GAMMA

  • 功能描述

    CURRENT MODE PWM CONTROLLER

更新时间:2025-10-20 10:59:00
供应商 型号 品牌 批号 封装 库存 备注 价格
GAMMA
23+
DIP-8
50000
全新原装正品现货,支持订货
GAMMA
24+
NA/
4390
原装现货,当天可交货,原型号开票
GAMMA
25+
DIP-8
1140
原装正品,假一罚十!
GAMMA
23+
SOP8
5000
原装正品,假一罚十
GAMMA
25+
DIP-8
18000
原厂直接发货进口原装
GAMMA
24+
SOP8
5000
全现原装公司现货
GAMMA
04+
SOP8
2500
现货
GAMMA
25+
SOP-8
2500
就找我吧!--邀您体验愉快问购元件!
GAMMA
22+
SOP-8L
6000
十年配单,只做原装
GAMMA
23+
SOP-8
3200
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