BRCL4056BSE

BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 描述 / Descriptions BRCL4056BSE 一款完整的恒定电流/恒定电压线性控制单节锂离子电池充电器，具有电池正负极反接保护 功能。其 ESOP-8 封装与较少的外部元件数目使得 BRCL4056BSE 成为便携式应用的理想选择。 BRCL4056BSE 可以适合 USB 电源和适配器电源工作。 由于采用了内部 PMOSFET 架构，加上防倒充电路，所以不需要外部检测电阻器和隔离二极管。热反馈可 对充电电流进行自动调节，以便在大功率操作或高环境温度条件下对芯片温度加以限制。充满电压固定于 4.20V，而充电电流可通过一个电阻器进行外部设置。当电池达到 4.20V 之后，充电电流降至设定值 1/10， BRCL4056BSE 将自动终止充电。 当输入电压（交流适配器或 USB 电源）被拿掉时，BRCL4056BSE 自动进入一个低电流状态，电池漏电流 在 3uA 以下。BRCL4056BSE 的其他特点包括充电电流监控器、欠压闭锁、自动再充电和两个用于指示充 电结束和输入电压接入的状态引脚。 BRCL4056BSE is a complete CC/CV linear charger for single cell lithium-ion batteries,It has the function of positive and negative electrode protection for battery.Its ESOP-8 package and low external component count make the BRCL4056BSE ideally suited for portable applications. Furthermore, the BRCL4056BSE is specifically designed to work within USB power specifications. No external sense resistor is needed and no blocking diode is required due to the internal P-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 BRCL4056BSE 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 BRCL4056BSE automatically enters a low current state dropping the battery drain current to less than 3μA. Other features include charge current monitor, under-voltage lockout, automatic recharge and two status pins to indicate charge and charge termination. 特征 / Features  预设4.20V±1%精度的充电电压 Preset 4.20V charge voltage with ±1% accuracy  输入最大耐压：8V Maximum allowable input voltage is 8V  具有BAT-VIN防倒灌功能 With BAT-VIN anti-backflow function  线性充电模式，内置1A MOSFET，涓流/恒流/恒压三段式充电，充电电流外部可调 Linear charge mode,built-in 1A MOSFET,Trickle /Constant current/Constant voltage three stage charging ,externally adjustable charging charging current  支持对0V电池充电 Supports 0V battery charing  短路保护，电池正负极反接保护 Short circuit protection,battery polarity reverse polarity protection  可直接从USB端口给单节锂离子电池充电 Charges single cell Li-ion batteries Directly from USB port http://www.fsbrec.com 1/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 特征 / Features  智能温控技术，充电电流会随温度升高而降低，130度开始下降，最低可降至0 Intelligent temperature control technology,charging current will decrease with increasing temperature,130℃ began to decline,the lowest can be reduced to 0  软启动限制了浪涌电流 Soft-Start limits inrush current  自动再充电 Automatic recharge  4KV ESD（HBM mode）  无卤产品。 Halogen-free Product. 用途 / Applications 适用于 USB 电源和适配器电源，蓝牙应用及其他便捷式设备。 Suitable for USB power and adapter power,Bluetooth applications and other portable devices. 典型应用电路图 / Typical Application 指示灯工作状态表 / Indicator light working state 充电状态 正在充电/Charging 电池充满/Battery full L1（CHRG） L2 （STDBY） 亮/Light 灭/Lights off 灭/ Lights off 亮/ Light 灭/ Lights off 灭/ Lights off 欠压，电池温度过高，过低等故障状态，或无电池接 入（TEMP使用） Undervoltage,battery temperature is too high,too low or other fault conditions,or no battery access(use TEMP) BAT端接10μF电容，无电池（TEMP=GND） BAT terminated with 10uF capacitor,no battery http://www.fsbrec.com 闪/Flashing light T=1-4s 亮/ Light 2/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 引脚排列 / Pinning 引脚 名称 描述 1 TEMP 外部温度感应引脚/External temperature sensing pin 2 PROG 充电电流调整端/Charge current regulator 3 GND 芯片地/Chip ground 4 VDD 外部输入直流5V/External input DC 5V 5 BAT 电池输入端/Battery input 6 STDBY 电池充电完成指示灯/Battery charge completion indicator 7 CHRG 充电指示灯/Charging indicator 8 NC 悬空/Vacant 印章代码 / Marking 见印章说明。 See Marking Instructions. 极限参数 / Absolute Maximum Ratings(Ta=25℃) 参数 Parameter VDD to GND 符号 Symbol VDD 数值 Rating -0.3~8 单位 Unit V BAT to GND VBAT -0.3~7 V Vchrg/Vstdby -0.3~8 V PROG to GND Vprog -0.3~8 V TEMP to GND Vtemp -0.3~8 V Storage Temperature TSTG -50~+125 ℃ Operating Temperature Range Topr -40~+85 ℃ Tsolder 260 ℃ CHRG/STDBY to GND Lead Temperature（Soldering，10s） http://www.fsbrec.com 3/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 电性能参数 / Electrical Characteristics( 除非特别指定，Ta=25℃) 参数 Parameter 输入电压范围 符号 Symbol VDD VDD 从低到高 VDD从高到低 测试条件 Test Conditions VDD掉电监测 浮充门槛电压 VBAT BAT倒灌电流 IBAT 涓流转恒流 VTRKL 涓流充电迟滞电压 VTRHYS VDD欠压闭锁门限 VUV VDD欠压闭锁迟滞 最小值 Min 典型值 Typ 最大值 Max 单位 Unit 4 5 6 V VDD>BAT 100 mV VDD>BAT 30 mV VDD=5V Vcc=3.5V Vbat=4.2V VBAT 从低到高 4.158 4.20 4.242 V 0.5 5 μA 2.8 V 100 mV 3.7 V VUVHYS 200 mV 手动停机门限电压 Vmsd 1.2 V 手动停机迟滞电压 VmsdHYS 50 mV 涓流时PROG电压 Vprog1 0.1 V 大电流时PROG电压 Vprog2 1.0 V 过温恢复 OTR 130 ℃ VDD从低到高 VDD=5V 工作原理 / Description of the Principle BRCL4056BSE是专门为一节锂离子或锂聚合物电池而设计的线性充电器电路，利用芯片内部的功率 晶 体管对电池进行恒流和恒压充电。充电电流可以用外部电阻编程设定，最大持续充电电流可达1.2A， 不需要另加阻流二极管和电流检测电阻。BRCL4056BSE包含两个漏极开路输出的状态指示输出端，充电 状态指示端CHRG和电池充满指示输出端STDBY。 芯片内部的功率管理电路在芯片的结温超过130℃时自动降低充电电流，这个功能可以使用户最大限度 的利用芯片的功率处理能力，不用担心芯片过热而损坏芯片或者外部元器件。这样，用户在设计充电电 流时，可以不用考虑最坏情况，而只是根据典型情况进行设计就可以了，因为在最坏情况下， BRCL4056BSE会自动减小充电电流。 当输入电压大于电源低电压检测阈值和芯片使能输入端接高电平时，BRCL4056BSE开始对电池充电， CHRG管脚输出低电平，表示充电正在进行，如果电池电压低于2.8V，充电器用小电流对电池进行预充电。 当电池电压超过2.8V时，充电器采用恒流模式对电池充电，充电电流由PROG管脚和GND之间的电阻 RPROG 确定。当电池电压接近4.2V 电压时，充电电流逐渐减小，BRCL4056BSE进入恒压充电模式。 当充电电流减小到充电结束阈值时，充电周期结束。CHRG输出高阻态，STDBY端输出低电位。充电结 束阈值是恒流充电电流的10%。 当电池电压降到再充电阈值以下时，自动开始新的充电周期。芯片内部的高精度的电压基准源，误差放 大器和电阻分压网络确保电池端调制电压的精度在 1%以内，满足了锂离子电池和锂聚合物电池的要求。 当输入电压掉电或者输入电压低于电池电压时，充电器进入低功耗的睡眠模式，电池端消耗的电流小于 3uA，从而增加了待机时间。 http://www.fsbrec.com 4/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 工作原理 / Description of the Principle The BRCL4056BSE is a complete CC/CV linear charger for single cell lithium-ion batteries. CC/CV to charger batter by internal MOSFET. It can deliver up to 1.2A of charge current .No blocking diode or external current sense resistors required. BRCL4056BSE include two Open-Drain charge status Pins: Charge status indicator CHRG and battery charge completion status output STDBY. The internal thermal regulation circuit reduces the programmed charge current if the die temperature attempts to rise above a preset value of approximately 130℃.This feature protects the BRCL4056BSE from excessive temperature, and allows the user to push the limits of the power handling capability of a given circuit the external components. Another benefit of adopting thermal regulation is that charge current can be set according to typical, not worst-case, ambient temperatures for a given application with the assurance that the charger will automatically reduce the current in worst-case conditions. The charge cycle begins when the voltage at the VCC pin rises above the UVLO level, a current set resistor is connected from the PROG pin to ground. The CHRG pin outputs a logic low to indicate that the charge cycle is on going. At the beginning of the charge cycle, if the battery voltage is below 2.8V, the charge is in pre charge mode to bring the cell voltage up to a safe level for charging. The charger goes into the fast charge CC mode once the voltage on the BAT pin rises above 2.8V. In CC mode, the charge current is set by RPROG. When the battery approaches the regulation voltage 4.2V, the charge current begins to decreases the BRCL4056BSE enters the CV mode. When the current drops to charge termination threshold, the charge cycle is terminated, and CHRG pin assumes a high impedance state to indicate that the charge cycle is terminated and STDBY pin is pulled low. The charge termination threshold is 10% of the current in CC mode. To restart the charge cycle, remove the input voltage and reapply it. The charge cycle can also be automatically restarted if the BAT pin voltage falls below the recharge threshold. The on-chip reference voltage, error amplifier and the resistor divider provide regulation voltage with 1% accuracy which can meet the requirement of lithium-ion and lithium polymer batteries. When the input voltage is not present, or input voltage is below VBAT, the charger goes into a sleep mode, dropping battery drain current to less than 3μA. This greatly reduces the current drain on the battery and increases the standby time. 充电电流的设定 / Programming Charge Current 充电电流是采用一个连接在PROG引脚与地之间的电阻器来设定的，设定电阻器和充电电流采用下列 公式来计算。根据需要的充电电流来确定电阻器阻值。 The charge current is programmed using a single resistor from the PROG pin to ground. The program resistor and the charge current are calculated using the following equations. http://www.fsbrec.com 5/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 外形尺寸图 / Package Dimensions http://www.fsbrec.com 6/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 印章说明 / Marking Instructions BR 4056B **** 说明： BR: 为公司代码 4056B： 为产品型号 ****： 为生产批号代码，随生产批号变化。 Note: BR: Company Code 4056B: Product Type. ****: Lot No. Code, code change with Lot No. http://www.fsbrec.com 7/8 BRCL4056BSE Rev.E Dec.-2020 DATA SHEET 回流焊温度曲线图(无铅) / Temperature Profile for IR Reflow Soldering(Pb-Free) 说明： Note: 1、预热温度 150～180℃，时间 60～90sec; 1.Preheating:150~180℃, Time:60~90sec. 2、峰值温度 245±5℃，时间持续为 5±0.5sec; 2.Peak Temp.:245±5℃, Duration:5±0.5sec. 3、焊接制程冷却速度为 2～10℃/sec. 3. Cooling Speed: 2~10℃/sec. 耐焊接热试验条件 / Resistance to Soldering Heat Test Conditions 温度：260±5℃ 时间：10±1 sec. Temp.:260±5℃ Time:10±1 sec 包装规格 / Packaging SPEC. 卷盘包装 / REEL Package Type 封装形式 ESOP-8 Dimension 包装尺寸 (unit：mm3) Units 包装数量 Units/Reel 只/卷盘 Reels/Inner Box 卷盘/盒 Units/Inner Box 只/盒 Inner Boxes/Outer Box 盒/箱 Units/Outer Box 只/箱 Reel Inner Box 盒 Outer Box 箱 4,000 2 8,000 6 48,000 13〞×12 360×360×50 380×335×366 使用说明 / Notices http://www.fsbrec.com 8/8