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
标签: pw2601
上传时间: 2022-02-11
上传用户:
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
标签: pw2053
上传时间: 2022-02-14
上传用户:jason_vip1
LI-OV5653电路原理图,OV5653的原理图,通过调试!
上传时间: 2013-04-24
上传用户:zl5712176
Li智能充电电路图
上传时间: 2013-10-25
上传用户:缥缈
锂离子电池Li+ 是适合电子产品轻薄小需求的高能量密度高性能电池,被广泛应用于手机,PDA ,笔记本电脑等高端产品中.图一所示电路提供了一种结构简单紧凑的单节Li+电池充电方案图中墙上适配器为9VDC 800mA 限流型电压源Anam Friwo 等公司均有相应产品MAX1679内置充电终止检测电路和充电过程控制.器插入电池或充电器上电都将启动一次充电过程一次完整的充电过程包括初始化充电以较小的充电电流为电池充电使电池电压大于2.5V温度范围如果超出2.5 到47.5 则处于等待状态.快充过程快充开始后MAX1679打开外接的P 沟道场效应管快充电流由外部限流型充电电源决定.一旦检测到电池电压达到Li+电池充电终止门限电压时快充结束.充电终止门限电压由电阻RADJ确定,可参考以下公式:
上传时间: 2013-11-14
上传用户:yuanwenjiao
程序存储问题:设有n 个程序{1,2,…, n }要存放在长度为L的磁带上。程序i存放在磁带上的长度是Li ,1≤i≤n 程序存储问题要求确定这n 个程序在磁带上的一个存储方案,使得能够在磁带上存储尽可能多的程序。 编程任务: 对于给定的n个程序存放在磁带上的长度,编程计算磁带上最多可以存储的程序数。 数据输入:由文件input.txt给出输入数据。第一行是正整数n,表示文件个数。接下来的1 行中,有n 个正整数,表示程序存放在磁带上的长度。 结果输出: input.txt output.txt 6 50 5 2 3 13 8 80 20
上传时间: 2013-12-20
上传用户:dongqiangqiang
Ion Team Lord Of The Rings Demo 模拟指环王的3D游戏 VS.NET编译 里面提供高级渲染算法
上传时间: 2014-09-09
上传用户:zq70996813
shen ying kong zhi,zhe shi lang ya de chu li
上传时间: 2013-11-29
上传用户:ecooo
shoujie ri li baincheng jaca xiao cheng cu
标签: baincheng shoujie cheng jaca
上传时间: 2015-06-23
上传用户:13215175592
Practices of Good Component Design 微软亚洲研究院 Barn-Wan Li主讲
标签: Practices Component Barn-Wan Design
上传时间: 2014-01-11
上传用户:3到15