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可编程充电电流1A锂单离子电池恒流恒压线性充电器CXLB7331自动终止充电循环进入低电流状态电池反向连接保护C/10充电终止
| 产品型号： | CXLB7331 |
| 产品类型： | 电池充电IC |
| 产品系列： | 单节锂电池充电芯片 |
| 产品状态： | 量产 |
| 浏览次数： | 44 次 |
产品简介
技术参数
| 输入电压范围 (VIN) | V ~ 4.25-6.5VV |
|---|---|
| 输出电压 (VOUT) | 4.2V/4.34VV |
| 输出电流 (IOUT) | 1000mAA |
| 工作频率 | 3MHz |
| 转换效率 | 92%% |
| 封装类型 | ESOP8 |
| Type | 单节锂电池充电芯片 |
| Charge voltage | 4.25-6.5V |
| Charge current | 1000mA |
| Battery type | 4.2V,4.35V |
| Charge method | 线性 |
| Charge status | 2LED |
| Protection | 过流/过压/过温/过充/短路 |
| Communication | QC2.0 QC3.0 |
| Features | 单节锂电池充电芯片 |
| Application | 电池充电IC |
| Iq | 55uA |
| 电池节数 | 1节锂电池 |
| 精度 | ±1% |
| 充电载止电压 | 4.2V/4.34V |
产品详细介绍
目录
产品概述 返回TOP
CXLB7331 is a complete constant-current/constant voltage linear charger for single cell lithium-ion batteries. With a thermally enhanced 8-PIN SOP package on the bottom and low external component count make the CXLB7331 ideally suited for portable applications. Furthermore the CXLB7331is specifically designed to work within USB power specifications. No external sense resistor is needed and no blocking diode is required due to the internal PMOSFET 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 / 4.34V, and the charge current can be programmed externally with a single resistor. The CXLB7331automatically 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 CXLB7331automatically enters a low current state dropping the battery drain current to less than 2μA.The CXLB7331can be put into shutdown mode reducing the supply current to 55μA. Other features include Battery temperature monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination.
产品特点 返回TOP
●Protection of battery cell reverse connection
● Programmable charge current up to 1A
●No MOSFET sense resistor or blocking diode required
●Complete linear Charger in SOP8 Package for single Cell Lithium-Ion Batteries.
●Constant-Current/Constant-Voltage operation with thermal regulation to maximize Rate Without risk of overheating.
● Preset 4.2V / 4.34V charge voltage with ±1% accuracy
● Automatic Recharge
● Two Status Indication for Charge status, no battery and battery failure indicators
● C/10 charge termination
● 55μA supply current in shutdown
● 2.9V trickle current charge threshold
● Soft-Start limits inrush current
● Battery Temperature Sensing
应用范围 返回TOP
●Cellular Telephones
●Digital Still Cameras
●MP3 Players
●Bluetooth Applications
●Portable Devices
●USB Bus-Powered Chargers
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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| Li-ion Battery Charger(锂电池充电芯片) | |||||||
| Part Number | VFLOAT | VIN | Max Charger | Charger | Accu. | IQ | Package |
| Type | |||||||
| CXLB7326 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 25uA | SOT23-5 |
| CXLB7327 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-5 |
| CXLB7328 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-5 |
| CXLB7329 | 4.2V | 4.25-6.5V | 800mA | Linear | ±1% | 55uA | SOT23-6 |
| CXLB7330 | 4.2V/4.34V | 4.25-6.5V | 1000mA | Linear | ±1% | 55uA | ESOP8 |
| CXLB7331 | 4.2V/4.34V | 4.25-6.5V | 1000mA | Linear | ±1% | 55uA | ESOP8 |
| CXLB7332 | 8.4V/8.7V | 4.7-20V | 2000mA | Switch | ±1% | 10uA | SOP8 |
| CXLB7333 | 4.2V/4.34V | 4.7-5.5V | 2000mA | Switch | ±1% | 1uA | ESOP8 |
| Applications：①Mobile phone②MID③PDA④Battery Charger⑤Bluetooth equipment | |||||||
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