中文
EnglishJTMB8836 JTMB8836A high performance offline PWM Power switch for low power AC/DC charger and adapter applications. It operates in primary-side sensing and regulation. Consequently
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（</span>PDF文档）</span>
5.产品封装图</span> 6.电路原理图</span> 7.相关产品
一.产品概述
JTMB8836 JTMB8836A 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.
Fig.1. Typical CC/CV Curve
In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs
at CS 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 built-in cable drop 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.
JTMB8836 JTMB8836A offers power on soft start control and protection coverage with auto-recovery features
including Cycle-by-Cycle current limiting, VDD OVP,VDD clamp and UVLO. High precision constant voltage (CV)
and constant current (CC) can be achieved by JTMB8836 JTMB8836A.
二</span>.产品特点
■</span> ±5% Constant Voltage Regulation at Universal AC input
■ High Precision 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 drop Compensation
■ Power on Soft-start
■ Built-in Leading Edge Blanking (LEB)
■ Cycle-by-Cycle Current Limiting
■ VDD Under Voltage Lockout with Hysteresis(UVLO)
■ VDD OVP
■ VDD Clamp
三</span>.应用范围
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
JTMB8836 is offered in DIP8 package.
四</span>.技术规格书（产品</span>PDF)
需要详细的PDF规格书请扫一扫微信联系我们</span>
五</span>.产品封</span>装</span>图</span>
六</span>.电路原理图</span>
七</span>.相关芯片选择指南
Part No. | Pout (Max.) | Drive Device | MODE | Standby Power | Power on Soft-Start | OVP | Package | Application |
JTMB8830A | 18W | External MOSFET | QR/PSR | <0.1W | Y | Y | SOT23-6 | 电源适配器、充电器 |
JTMB8835 | 6W | MOSFET | PSR | <0.15W | Y | Y | SOP8 | 电源适配器、充电器 |
JTMB8835A | 10W | MOSFET | QR/PSR | <0.1W | Y | Y | SOP8 | 电源适配器、充电器 |
JTMB8836 | 12W | MOSFET | PSR | <0.15W | Y | Y | DIP8 | 电源适配器、充电器 |
JTMB8836A | 12W | MOSFET | QR/PSR | <0.1W | Y | Y | DIP8 | 电源适配器、充电器 |
JTMB8891 | 15W | MOSFET | SSR | <0.15W | Y | Y | DIP7,DIP8 | 电源适配器、机顶盒电源、小家电电源 |
JTMB8892 | 15W | MOSFET | SSR | <0.1W | Y | Y | DIP7,DIP8 | 电源适配器、机顶盒电源、小家电电源 |
JTMB8896 | 12W | BJT | SSR | <0.15W | Y | DIP8 | 电源适配器、机顶盒电源、小家电电源 | |
JTMB8851 | 100W | External MOSFET | SSR | <0.15W | Y | Y | SOT23-6 | 电源适配器、机顶盒电源、小家电电源 |
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