Other Parts Discussed in Thread: UC3842 , UC3843 , UC3844 , UC3845 This application note provides a functional description of the UC3842 family and highlights the features of each individual member, the UC3842, UC3843, UC3844 and UC3845 Throughout the text,…
Other Parts Discussed in Thread: UC2845 , UC1845 , UC2843 我做的是一个20W的反激电源。片子的供电电压16V,PWM输出频率150KHz。烤机后发现片子温升有55度。后来把MOS管去掉,PWM脚接个10k的电阻,温升也有40度,测得工作电流20mA。不知道是我的电路参数有问题,还是SOIC-8封装的UC2845本身就有这么大的功耗?
Other Parts Discussed in Thread: UCC256403 , UCC2897A , UCC28C44 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/843257/recommended-topology-for-ac-dc…