| 代理平芯微鋰電池充電芯片PW4055 |
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價格： 元(人民幣) | 產(chǎn)地：江蘇無錫市 |
| 最少起訂量：1個 | 發(fā)貨地：廣東深圳市 | |
| 上架時間：2020-08-15 19:42:40 | 瀏覽量：169 | |
深圳市夸克微科技有限公司
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| 經(jīng)營模式：代理商 | 公司類型：私營有限責(zé)任公司 | |
| 所屬行業(yè)：其他電工電氣分類 | 主要客戶：國內(nèi) | |
 在線咨詢  |
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| 聯(lián)系人:鄭先生 (先生) | 手機:13528458039 |
電話: |
傳真: |
| 郵箱:zqf@kkmicro.com | 地址:福田區(qū)賽格廣場38樓 |
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GENERAL DESCRIPTION The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithium-ion batteries.Its ThinSOT package and low external component count make the PW4055 ideally suited for portable applications.Furthermore, the PW4055 is specifically designed to work within USB power specifications. The PW4055 No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture.Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the PW4055 automatically enters a low current state, dropping the battery drain current to less than 2?A. The PW4055 can be put into shutdown mode, reducing the supply current to 25?A. The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, under-voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. FEATURES? l Programmable Charge Current Up to 500mA l Complete Linear Charger in ThinSOT Package for single Cell Lithium-Ion Batteries l Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating l Charges Single Cell Li-Ion Batteries Directly from USB Port l Charge Current Monitor Output for Gas Gauging l Automatic Recharge l Charge Status Output Pin l C/10 Charge Termination l Soft-Start Limits Inrush Current 7KV ESD(HBM) capability
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