WDP5228.05100 電源芯片被稱為“電子設備的靈魂”，幾乎決定了所有電子設備的綜合性能，而昂寶是我們國內的品牌電源芯片廠家之一。今天小編給大家推薦一款銀聯寶科技的電源芯片U6201可以直接替代昂寶OB2263。
首先，我們先看看電源芯片U6201引腳功能：
1腳GND芯片參考地
2腳FB反饋輸入管腳。
閉環控制時連接于光電耦合器相連，此腳位電壓決定了PWM驅動信號的占空比和CS管腳的關斷電壓
3腳SEL功能復用管腳。
橫流恒壓輸出應用時，推薦連接典型值為10-47nF電容到GND管腳；恒壓輸出應用時，此管腳懸空
4腳CS電流采樣輸入管腳
5腳VDD芯片供電管腳
6腳GATE圖騰驅動電路管腳，連接外部MOSFET
而OB2263的3腳是RI，而芯片U6201的3腳SEL是懸空的，所以是可以直接pin to pin的。OB2263的4腳是SENSE，都是指“過流取樣”。而芯片U6201的4腳CS是電流采樣輸入管腳，所以也是可以直接pin to pin。
銀聯寶科技的電源芯片U6201是一款高性能電流模式PWM控制器，適用于離線反激式轉換器應用。該IC內置通用初級側CC控制，簡化了隔離電源設計，需要對輸出進行CC調節。其功能：
1.帶有混洗的PWM開關頻率固定為65KHz，并調整到很窄的范圍。
2.該IC具有內置綠色和突發模式控制，可實現輕載和零載荷，可為低于60W的應用提供低于75mW的待機功率。
3.集成了欠壓鎖定（UVLO），VDD過壓保護（VDD OVP），逐周期限流（OCP），短路保護（SLP），過載保護（OLP），片上功能和保護功能熱關斷（OTP），軟啟動，VDD鉗位等
總之，電源芯片U6201是OB2263的升級版。主要表現：
1. 電源芯片U6201的功率可以做到65W，相比OB2263的30W，有更多的功率余量可以選擇。
2. 電源芯片U6201的價格比OB2263優惠，在性能一樣的情況下，成本低，價格優惠。
WDP5228.05100
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