28V 1A,高压线性充电管理芯片ZCC3221替代CE3221

发布时间:2022-1-12 13:47    发布者:zhicw
n INTRODUCTIONnFEATURES
The ZCC3221 is a complete constant-current/ constant-voltage linear charger for single cell lithium rechargeable battery. No external sense resistor is needed, and no blocking diode is required due to the internal P-MOSFET architecture. Furthermore, the ZCC3221 is specifically designed to work with in USB power specifications. Its low external component count makes the ZCC3221 ideally suited for portable applications. Thermal feedback regulates the charge current to limit their temperature during high power operation or high ambient temperature. The charge current can be programmed externally with a single resistor. The ZCC3221 automatically terminates the charge cycle when the charge current drops to 1/10ththe programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the ZCC3221 automatically enters a low power sleep mode, dropping the battery drain current to less than
2mA.The ZCC3221 can be put into shutdown
mode, reducing the supply current to 50mA.Other features include battery pack temperature monitor, under voltage lockout, automatic recharge and two status pins to indicate charging
and charge termination.
l Charges Single Cell Lithium Battery Directly from USB Port or AC Adapter
l Input Voltage Range From4.5V to 24V
l Input OVP:6.5V
l No External MOSFET, Sense Resistor or Blocking Diode Required
l Preset4.20V/4.35VCharge Voltage
l Continuous Programmable Charge Current Up to 1.2A
l Recharge Conditioning for Reviving Deeply DischargedCellsandMinimizingHeat Dissipation during Initial Stage of Charge
l Constant-Current/Constant- Voltage/Constant-TempOperationwith Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
l Battery Reverse Protection
l Automatic Recharge
l Battery Temperature Sensing
l Charge state pairs of output, no battery and fault status display
l Charge Current Monitor Output for Gas Gauging
l Automatic Low Power Sleep Mode When Input Supply Voltage is Removed
l Soft-Start Limits Inrush
28v高压线性充电管理芯片zcc3221替代ce3221.pdf (2.44 MB)
欢迎分享本文,转载请保留出处:https://www.eechina.com/thread-782553-1-1.html     【打印本页】
您需要登录后才可以发表评论 登录 | 立即注册

厂商推荐

关于我们  -  服务条款  -  使用指南  -  站点地图  -  友情链接  -  联系我们
电子工程网 © 版权所有   京ICP备16069177号 | 京公网安备11010502021702
快速回复 返回顶部 返回列表