The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-IONbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
標簽: pw2601
上傳時間: 2022-02-11
上傳用戶:
The PW2053 is a high-efficiency monolithic synchronous buck regulator using a constantfrequency, current mode architecture. The device is available in an adjustable version. Supply currentwith no load is 40uA and drops to <1uA in shutdown. The 2.5V to 5.5V input voltage range makesthe PW2053 ideally suited for single Li-ION battery powered applications. 100% duty cycle provideslow dropout operation, extending battery life in portable systems. PWM/PFM mode operationprovides very low output ripple voltage for noise sensitive applications. Switching frequency isinternally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. Lowoutput voltages are easily supported with the 0.6V feedback reference voltage
標簽: pw2053
上傳時間: 2022-02-14
上傳用戶:jason_vip1
LI-OV5653電路原理圖,OV5653的原理圖,通過調試!
上傳時間: 2013-04-24
上傳用戶:zl5712176
Li智能充電電路圖
上傳時間: 2013-10-25
上傳用戶:縹緲
鋰離子電池Li+ 是適合電子產品輕薄小需求的高能量密度高性能電池,被廣泛應用于手機,PDA ,筆記本電腦等高端產品中.圖一所示電路提供了一種結構簡單緊湊的單節Li+電池充電方案圖中墻上適配器為9VDC 800mA 限流型電壓源Anam Friwo 等公司均有相應產品MAX1679內置充電終止檢測電路和充電過程控制.器插入電池或充電器上電都將啟動一次充電過程一次完整的充電過程包括初始化充電以較小的充電電流為電池充電使電池電壓大于2.5V溫度范圍如果超出2.5 到47.5 則處于等待狀態.快充過程快充開始后MAX1679打開外接的P 溝道場效應管快充電流由外部限流型充電電源決定.一旦檢測到電池電壓達到Li+電池充電終止門限電壓時快充結束.充電終止門限電壓由電阻RADJ確定,可參考以下公式:
上傳時間: 2013-11-14
上傳用戶:yuanwenjiao
程序存儲問題:設有n 個程序{1,2,…, n }要存放在長度為L的磁帶上。程序i存放在磁帶上的長度是Li ,1≤i≤n 程序存儲問題要求確定這n 個程序在磁帶上的一個存儲方案,使得能夠在磁帶上存儲盡可能多的程序。 編程任務: 對于給定的n個程序存放在磁帶上的長度,編程計算磁帶上最多可以存儲的程序數。 數據輸入:由文件input.txt給出輸入數據。第一行是正整數n,表示文件個數。接下來的1 行中,有n 個正整數,表示程序存放在磁帶上的長度。 結果輸出: input.txt output.txt 6 50 5 2 3 13 8 80 20
上傳時間: 2013-12-20
上傳用戶:dongqiangqiang
Ion Team Lord Of The Rings Demo 模擬指環王的3D游戲 VS.NET編譯 里面提供高級渲染算法
上傳時間: 2014-09-09
上傳用戶:zq70996813
shen ying kong zhi,zhe shi lang ya de chu li
上傳時間: 2013-11-29
上傳用戶:ecooo
shoujie ri li baincheng jaca xiao cheng cu
標簽: baincheng shoujie cheng jaca
上傳時間: 2015-06-23
上傳用戶:13215175592
Practices of Good Component Design 微軟亞洲研究院 Barn-Wan Li主講
標簽: Practices Component Barn-Wan Design
上傳時間: 2014-01-11
上傳用戶:3到15