JTMB8896 is a high-performance current mode PWM control IC designed for AC/DC convertor, which built-in high-voltage power switch tube and supplies continuous output power of 10W within the range of

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（PDF文档）

    5.产品封装图        6.电路原理图      7.相关产品

一.产品概述  

  JTMB8896 is a high-performance current mode  PWM control IC designed for AC/DC convertor,

which built-in high-voltage power switch tube and supplies continuous output power of 10W within

the range of wide-voltage between 85V and 300V, the output power of peak value can be up

to 12W.The combination of optimized reasonable circuit design and bipolar facture technology with

high performance and price ratio economizes the whole cost ultimately. The power controller can

be applied to the typical flyback circuit topology so as to form a simple AC/DC transformer. IC

circuit can use the power switch tube itself within a larger version of startup, greatly reduces the

power loss of starting resistance .IC built-in PFM function that when the output power increases

then the working frequency increases, thus reducing switching loss and achieving high

efficiency when the power output decreases. The PFM function combination of patent drive circuit

that can easily meet "of energy Star 2.0" strict requirements. When VCC reaches 12V, the chip

internal over voltage protection activates and limits the output voltage rising. That can prevent

the too high output voltage because the light coupling or the feedback circuit damaged. The

circuit built-in the input voltage compensation function, which realizes the constant output

power limiting in the whole power grid conditions. In the IC internal that provides the overload and

the perfect saturation function. It can real time control van overload, transformer saturation,

output short circuit in abnormal condition, so improving the reliability of power supply. IC has

integrated the internal temperature protection function, when the system is overheating, the

output power will be lower, or shuts down the output. We can provide meeting ROHS and

green environmental protection requirements of DIP-8 standard.

二.产品特点

■ Meeting AC85-300V input voltage range of the design requirements

■ Low starting current and working current

■ The standby power consumption can be as low as 0.15W

■ Improve driving circuit efficiency 2-3%

■ Meeting the requirements of energy efficiency energy star 2.0

■ With temperature compensation function accurate current control

■ Wide voltage continuous output power can be up to 10W, the peak output power can be up to 12W

■ AC line compensation

■ With functions of thermal protection (OTP)

■ With functions of over voltage protection (OVP)

■ Can be realized without Y capacitor system design

■ Less peripheral components, and the overall scheme of low cost

三.应用范围    

■ The charger

■ DVD/DVB power

■ Small appliances (such as: induction cooker)

■ PC&LCD TV standby power supply

■ The power adapter (such as communications terminal products)

四.技术规格书（产品PDF)    

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五.产品封装图

六.电路原理图   

七.相关芯片选择指南