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AAT3687IWP-4.2-1-T1

AAT3687IWP-4.2-1-T1

  • 厂商:

    ANALOGICTECH(研诺)

  • 封装:

  • 描述:

    AAT3687IWP-4.2-1-T1 - Lithium-Ion/Polymer Battery Charger - Advanced Analogic Technologies

  • 详情介绍
  • 数据手册
  • 价格&库存
AAT3687IWP-4.2-1-T1 数据手册
PRODUCT DATASHEET AAT3687 BatteryManagerTM General Description The AAT3687 BatteryManager is a highly integrated single-cell lithium-ion/polymer battery charger IC designed to operate with AC adapter inputs. It requires a minimum number of external components. The AAT3687 precisely regulates battery charge voltage and current for 4.2V lithium-ion/polymer battery cells. Adapter charge current rates can be programmed up to 1.5A. An active thermal management system regulates the fast charge constant current for all ambient temperature and input vs. output voltage conditions. Battery temperature and charge state are fully monitored for fault conditions. In the event of an over-voltage or over-temperature failure, the device will automatically shut down, thus protecting the charging device, control system, and the battery under charge. Status monitor output pins are provided to indicate the battery charge status by directly driving two external LEDs. A serial interface output is available to report 12 various charging status states to a microcontroller. The AAT3687 is available in a Pb-free, thermally-enhanced, space-saving 12-pin TDFN 3x3mm package and is rated over the -40°C to +85°C temperature range. Lithium-Ion/Polymer Battery Charger Features • • • • Input Voltage Range: 4.0V to 5.5V Up to 1.5A Charging Current Adapter Present Indicator (ADPP#) High Level of Integration with Internal: ▪ Charging Device ▪ Reverse Blocking Diode ▪ Current Sensing Active Thermal Loop Charge Reduction Automatic Recharge Sequencing Battery Temperature Monitoring Full Battery Charge Auto Turn-Off / Sleep Mode Over-Voltage, Over-Current, and Over-Temperature Protection Power On Reset and Soft Start Serial Interface Status Report 12-Pin 3x3mm TDFN Package -40°C to +85°C Temperature Range • • • • • • • • • Applications • • • • • • Cellular Telephones Digital Still Cameras Hand Held PCs MP3 Players Personal Data Assistants (PDAs) Other Lithium-Ion/Polymer Battery-Powered Devices Typical Application Adapter Present Enable Serial Interface BATT+ ADPP# EN DATA TS BAT COUT 10µF + BATT- AAT3687 CT Adapter CIN 10µF RSET ADP ADPSET STAT1 GND STAT2 CT 0.1µF TEMP RB1 LED1 RB2 Battery Pack LED2 3687.2008.04.1.12 www.analogictech.com 1 PRODUCT DATASHEET AAT3687 AAT3687 BatteryManagerTM Pin Descriptions Pin # 1 2 3 4 5 6 7 8 9 10 11 12 EP Lithium-Ion/Polymer Battery Charger Name BAT ADP GND EN ADPP# TS DATA STAT2 STAT1 CT N/C ADPSET Type Out In Ground In Out In/Out Out Out Out In/Out Function Battery charging and sensing. Adapter input. Ground connection. AAT3687: Enable pin. Logic high enables the IC. AAT3687-1, AAT3687-2: Enable pin. Logic high enables the IC. EN tied to internal 4MΩ pull-up resistor to ADP. Adapter present indicator. This pin is open drain until ADP pin reaches threshold. Connect to 10kΩ NTC thermistor. Status report to microcontroller via serial interface: open drain. Battery charge status indicator pin to drive an LED: active low, open drain. Battery charge status indicator pin to drive an LED: active low, open drain. Timing capacitor to adjust internal watchdog timer. Set maximum charge time for adapter powered trickle, CC, and CV charge modes. If timing function is not needed, terminate this pin to ground. No connection. Use resistor at this pin to set adapter charging current. Exposed paddle (bottom); connect to GND directly beneath package. In/Out Pin Configuration TDFN33-12 (Top View) BAT ADP GND EN ADPP# TS 1 2 3 4 5 6 12 11 10 9 8 7 ADPSET N/C CT STAT1 STAT2 DATA 2 www.analogictech.com 3687.2008.04.1.12 PRODUCT DATASHEET AAT3687 AAT3687 BatteryManagerTM AAT3687 Feature Options Product AAT3687 AAT3687-1 AAT3687-2 Lithium-Ion/Polymer Battery Charger Trickle Charge Yes Yes No Internal Pull-Up Resistor on EN Pin No Yes Yes Can Leave TS Pin Open No Yes Yes Absolute Maximum Ratings1 Symbol VP VP VN TJ TLEAD Description ADP Input Voltage,
AAT3687IWP-4.2-1-T1
1. 物料型号: - AAT3687

2. 器件简介: - AAT3687是一款高度集成的单节锂离子/聚合物电池充电器IC,设计用于与交流适配器输入一起工作,并且需要的外部组件数量最少。该IC能够精确调节4.2V锂离子/聚合物电池的充电电压和电流。适配器充电电流可以编程高达1.5A。AAT3687在所有环境温度和输入与输出电压条件下,都能通过主动热管理系统调节快速充电的恒定电流。在过压或过温故障情况下,设备会自动关闭,保护充电设备、控制系统和正在充电的电池。

3. 引脚分配: - BAT(1号引脚):输出,电池充电和感应。 - ADP(2号引脚):输入,适配器输入。 - GND(3号引脚):地,接地连接。 - EN(4号引脚):输入,使能引脚。逻辑高启用IC。 - ADPP#(5号引脚):输出,适配器存在指示。 - TS(6号引脚):输入/输出,连接至10k NTC热敏电阻。 - DATA(7号引脚):输出,通过串行接口向微控制器报告状态。 - STAT2(8号引脚):输出,电池充电状态指示引脚,驱动LED。 - STAT1(9号引脚):输出,电池充电状态指示引脚,驱动LED。 - CT(10号引脚):输入/输出,调整内部看门狗定时器。 - N/C(11号引脚):无连接。 - ADPSET(12号引脚):输入/输出,使用此引脚上的电阻设置适配器充电电流。

4. 参数特性: - 输入电压范围:4.0V至5.5V。 - 充电电流:高达1.5A。 - 适配器存在指示(ADPP#)。 - 高度集成,包括内部反向阻断二极管、电流感应等。 - 主动热循环充电减少。 - 自动再充电序列。 - 电池温度监测。 - 满电池充电自动关闭/睡眠模式。 - 过压、过流和过温保护。 - 电源开启重置和软启动。 - 串行接口状态报告。 - 12引脚3x3mm TDFN封装。 - 工作温度范围:-40°C至+85°C。

5. 功能详解: - AAT3687具有四个基本的电池充电周期模式:预调节/涓流充电、恒流/快充、恒压充电和充电结束。在充电过程中,AAT3687会根据电池状态自动切换这些模式。

6. 应用信息: - 适用于手机、数字相机、手持PC、MP3播放器、个人数据助理(PDA)等使用锂离子/聚合物电池的设备。
AAT3687IWP-4.2-1-T1 价格&库存

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