MC34674是一款全集成的单芯锂离子和锂聚合物电池充电器,适用于旅行充电器应用。它只需要少量一些外部组件,包括指示充电状态的双色 LED、用以设定充电窗口的负温度系数(NTC)热敏电阻电路和两个解耦电容器。
MC34674能承受高达28 V的输入电压, 可使用低成本的ac/dc转换器,以进一步降低系统成本。MC34674充电周期包括涓流式、恒流(CC)和恒压(CV)这三种充电模式。恒流模式电流在50 mA至1.05 A的范围内可选择,精确度为10%,恒压模式中的恒定输出电压固定为4.2 V。
MC34674有多种功能,如用于深度放电电池的涓流式充电;内部定时器提醒充电结束,防止电池充电故障;充电器电流折返热保护功能;智能电池连接验证,防止在电池未连接的情况下充电。它有一个2.6 V的上电复位(POR)下降沿阈值,使其能与电流限制电源完美协作。当充电器关闭时,BAT引脚消耗电池不足1 µA的电流。
名称/描述 | 类型 | Modified Date |
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MC34674, High Input Voltage Travel Charger for Single-cell Li-Ion Batteries (REV 2.0) PDF (597.2 kB) MC34674 [English] | 数据手册 | |
MC34674FS, Industry's most flexible battery charger solution (REV 2.0) PDF (272.8 kB) MC34674FS [English] | 简介 | |
AN1902, Assembly Guidelines for QFN (Quad Flat No-Lead) and DFN (Dual Flat No-Lead) Packages - Application Note (REV 7.0) PDF (3.6 MB) AN1902 [English] | 应用说明 |
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MC34674, High Input Voltage Travel Charger for Single-cell Li-Ion Batteries (REV 2.0) PDF (597.2 kB) MC34674 [English] | 20 Nov 2008 |
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Wireless Charging Receiver Using the Kinetis® KL05Z32 MCU - Application Note (REV 0) PDF (268.3 kB) AN5075 [English] | 09 Feb 2015 |
AN1902, Assembly Guidelines for QFN (Quad Flat No-Lead) and DFN (Dual Flat No-Lead) Packages - Application Note (REV 7.0) PDF (3.6 MB) AN1902 [English] | 13 Oct 2014 |
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KIT34674EPEVBE, Using the High-Input-Voltage Travel Charger for Single Cell Li-Ion Batteries - User Guide (REV 1.0) PDF (267.3 kB) KT34674UG [English] | 18 Jun 2009 |
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MC34674FS, Industry's most flexible battery charger solution (REV 2.0) PDF (272.8 kB) MC34674FS [English] | 24 Nov 2008 |
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医疗应用手册 (REV 2) PDF (1.8 MB) BRMEDICAL [中文, English] | 12 Sep 2012 |
型号 | 状态 | 器件功能 | 预算报价(不含税)(CNY) | 封装类型和焊端数 | 线性/LDO稳压器数量 | 输出电压 | 输出电流 (A) | 电池充电器 | 电池组数量 | 充电终止方法 | 充电电流类型 | 供电电压 (Min-Max) (V) | 接口和输入控制 | 工作环境温度 (Min-Max) (°C) | 保护 | 其他特性 - 电源管理 | Pin count | 输入电压 (Max) (V) | RoHS |
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MC34674BEPR2 | Active | Battery Chargers | 1K @ CNY2.98 | DFN-EP 8 | 4.2 | 0.85 | Li-Polymer, Li-Ion | 1 | End of Charge (EOC), Timeout, MCU control, Over Voltage (OVP) | Tickle Charge Current, Constant Charge Current | 4.3 to 10 | Parallel | -40 to 85 | Die Temperature Current Limit, Battery Thermal Regulation, Overvoltage Protect | AC Supply Voltage, End of Charge Termination, Overvoltage Charge Termination | 8 | 28 | [object Object] | |
MC34674AEPR2 | Active | Battery Chargers | 1K @ CNY2.98 | DFN-EP 8 | 4.2 | 1.05 | Li-Polymer, Li-Ion | 1 | End of Charge (EOC), Timeout, MCU control, Over Voltage (OVP) | Tickle Charge Current, Constant Charge Current | 4.3 to 10 | Parallel | -40 to 85 | Die Temperature Current Limit, Battery Thermal Regulation, Overvoltage Protect | AC Supply Voltage, End of Charge Termination, Overvoltage Charge Termination | 8 | 28 | [object Object] | |
MC34674DEPR2 | Active | Battery Chargers | 1K @ CNY2.98 | DFN-EP 8 | 4.2 | 0.45 | Li-Polymer, Li-Ion | 1 | End of Charge (EOC), Timeout, MCU control, Over Voltage (OVP) | Tickle Charge Current, Constant Charge Current | 4.3 to 10 | Parallel | -40 to 85 | Die Temperature Current Limit, Battery Thermal Regulation, Overvoltage Protect | AC Supply Voltage, End of Charge Termination, Overvoltage Charge Termination | 8 | 28 | [object Object] | |
MC34674CEPR2 | Active | Battery Chargers | 1K @ CNY2.98 | DFN-EP 8 | 4.2 | 0.65 | Li-Polymer, Li-Ion | 1 | End of Charge (EOC), Timeout, MCU control, Over Voltage (OVP) | Tickle Charge Current, Constant Charge Current | 4.3 to 10 | Parallel | -40 to 85 | Die Temperature Current Limit, Battery Thermal Regulation, Overvoltage Protect | AC Supply Voltage, End of Charge Termination, Overvoltage Charge Termination | 8 | 28 | [object Object] |
封装说明 | Outline Version | 包装 | 产品状态 | 部件编号 | 化学成分 | RoHS / Pb Free中国RoHS查询 | MSL | PPT (°C) |
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QFN-D 8 EP 2*3*0.65P0.5 | 98ASA10774D | MPQ - 3000 REELPOQ - 3000 BOX | Active | MC34674AEPR2 | MC34674AEPR2.pdf | 1 | 260 | |
MPQ - 3000 REELPOQ - 3000 BOX | Active | MC34674BEPR2 | MC34674BEPR2.pdf | 1 | 260 | |||
MPQ - 3000 REELPOQ - 3000 BOX | Active | MC34674CEPR2 | MC34674CEPR2.pdf | 1 | 260 | |||
MPQ - 3000 REELPOQ - 3000 BOX | Active | MC34674DEPR2 | MC34674DEPR2.pdf | 1 | 260 |