内置2NMOS AC/DC MT6514
FEATURES
5% Constant Voltage Regulation, 5% Constant
Current Regulation at Universal AC input
Primary-side Sensing and Regulation Without
TL431 and Opto-coupler
Programmable CV and CC Regulation
Adjustable Constant Current and Output Power
Setting
Built-in Secondary Constant Current Control with
Primary Side Feedback
Built-in Adaptive Current Peak Regulation
Built-in Primary winding inductance compensation
Programmable Cable Compensation
Power on Soft-start
Built-in Leading Edge Blanking LEB
Cycle-by-Cycle Current Limiting
VIN Under Voltage Lockout with HysteresisUVLO
VIN OVP
VIN Clamp
APPLICATIONS
Low Power AC/DC offline SMPS for
Cell Phone Charger
Digital Cameras Charger
Small Power Adapter
Auxiliary Power for PC, TV etc.
Linear Regulator/RCC Replacement
GENERAL DEION
MT6514 is a high performance offline PWM Power
switch for low power AC/DC charger and adapter
applications. It operates in primary-side sensing and
regulation. Consequently, opto-coupler and TL431
could be eliminated. Proprietary Constant Voltage CV
and Constant Current CC control is integrated as
shown in the figure below.
In CC control, the current and output power setting can
be adjusted externally by the sense resistor Rs at ISEN
pin. In CV control, multi-mode operations are utilized to
achieve high performance and high efficiency. In
addition, good load regulation is achieved by the builtin
cable compensation. Device operates in PFM in
CC mode as well at large load condition and it operates
in PWM with frequency reduction at light/medium load.
MT6514 offers power on soft start control and
protection coverage with auto-recovery features
including Cycle-by-Cycle current limiting, VIN OVP,
VIN clamp and UVLO. Excellent EMI performance is
achieved with frequency shuffling technique.
High precision constant voltage CV and constant
current CC can be achieved by MT6514.
深圳市嘉城富科技有限公司是一家从事销售消费类电子料的国内企业。受国内电子研究所旗下电子公司FC,XN,CHIPOWER,MT,MXT,WL,DP,CL授权代理其全线产品的销售，产品应用于开关电源、路由器、数字机顶盒、高频无绳电话、对讲机、无线耳机、无线音响，车载产品，无线鼠标键盘、无线门铃、无线麦克风、,报警器，游戏手柄,无线灯控，智能开关、智能家居等家用电器、玩具方面。深圳市嘉城富科技有限公司自成立以来，一直秉持“服务、、、信誉”为经营理念，以完善的供应系统与服务体系，以高质高效的工作作风，以稳健快捷的步伐为客户提供质、完善、全面的服务。
深圳市嘉城富科技有限公司
联 系 人：刘小媛
电话：
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地 址： 广东 深圳市宝安区 龙华新区民治大道民康路民康花园B5-301
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http://szliuxiaoyuan.cn.1688.com
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