PDF《工作电路简图》

??Maxim Integrated Products??1 工作电路简图 19-5872;

Rev 1;

7/11 定购信息在数据资料的最后给出.

相关型号以及配合该器件使用的推荐产品,请参见:china.maxim-ic. com/MAX17710.related 概述 MAX17710是一个完整的微能量存储电池(例如,Infinite Power?Solutions的THINERGY?微能量电池(MEC))的充电、 保护系统.该IC能够管理输出范围从1?W至100mW功率极 其微弱的能量收集器件.器件内部包括boost升压电路,能 够从低至0.75V?(典型值)的电源为电池充电.内部转换器能 够保护电池不发生过充. 利用低压差(LDO)线性稳压器为目标应用提供稳压供电,可 选择3.3V、2.3V或1.8V稳压输出.输出调节器可选择工作 在低功率模式或超低功率模式,以降低电池损耗.内部电 压保护电路可防止电池过放电. 器件采用3mm x 3mm x 0.5mm、12引脚超薄UTDFN封装. 应用 特性 S 集成电源管理IC,用于能量存储和负载管理 S 锂电池充电器 1nA待机IQBATT 625nA线性充电 1?W boost充电 S 锂电池欠压保护 S 充电器过压保护 S 1.8V、2.3V或3.3V LDO (150nA IQBATT) S 锂电池输出缓冲 S 3mm x 3mm x 0.5mm超薄UTDFN封装 智能卡 远端无线传感器 存储器和实时时钟备份 电源 半有源RFID标签 医疗设备 高温应用 军事/DoD和航空 玩具 THINERGY是Infinite Power Solutions, Inc.的注册商标. LX FB GND EP PGND SEL1 CHG SEL2 BATT TEG, SOLAR, OR OTHER LOW-VOLTAGE SOURCE RF OR OTHER HIGH-VOLTAGE SOURCE THINERGY MEC101 PCKP REG AE LCE LDO CONTROL SIGNALS UNREGULATED OUTPUT REGULATED OUTPUT MAX17710 Maxim Integrated Products??2 MAX17710 能量收集充电器和保护器 BATT to GND.0.3V to +6V CHG to GND.0.3V to +6V LX to PGND.0.3V to +6V GND to PGND.0.3V to +0.3V FB, AE, LCE, SEL1, SEL2, REG, PCKP to GND.0.3V to VBATT + 0.3V CHG Continuous Current (limited by power dissipation of package)100mA Continuous Power Dissipation (TA = +70NC) 12-Pin UTDFN (derate 15mW/NC above +70NC)1200mW Operating Temperature Range.40NC to +85NC Junction Temperature.150NC Storage Temperature Range.65NC to +150NC Lead Temperature (soldering, 10s)300NC Lead Temperature (reflow)260NC Absolute Maximum Ratings Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional opera- tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (VCHG = +4.3V, Figure 1, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CHG Input Maximum Voltage Limited by shunt regulator (Note 2) 4.875 5.3 5.7 V CHG Enable Threshold VCE 4.07 4.15 4.21 V CHG Quiescent Current IQCHG VCHG = 4.0V rising, VBATT = 4.0V

625 1300 nA CHG Shunt Delay

25 Fs CHG Input Shunt Limit (Note 2)

50 mA CHG Maximum Input Current VCHG input current limited by Absolute Maximum Ratings

50 100 mA CHG-to-BATT Dropout Voltage VCHG = 4.0V, ICHG = 1FA

45 mV VCHG = 4.0V, IBATT = -6mA

55 VCHG = 4.0V, IBATT = -20mA

65 VCHG = 4.0V, IBATT = -40mA

100 BATT REG BATT Regulator Voltage 4.065 4.125 4.160 V BATT Regulation Delay VCHG = 4.2V, starting at 4V

30 Fs BATT Quiescent Current IQBATT Regulator in dropout;

VCHG = 4.15V, VBATT = 4.12V

450 1030 nA Harvest standby (AE pulse low) VCHG = 0V, VBATT = 2.1V to 4.0V

1 165 AE regulator on, boost off;

VCHG = 0V, VBATT = 4.0V, AE high

725 1650 LCE regulator on, boost off;

VBATT = 4.0V, LCE mode (Note 3)

150 550 Maxim Integrated Products??3 MAX17710 能量收集充电器和保护器 ELECTRICAL CHARACTERISTICS (continued) (VCHG = +4.3V, Figure 1, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LINEAR LDO REGULATOR REG Voltage VPCKP = 4.0V, IREG = 50FA, SEL1 = open 3.22 3.3 3.37 V VPCKP = 4.0V, IREG = 50FA, SEL1 = GND 2.25 2.3 2.375 VPCKP = 4.0V, IREG = 50FA, SEL1 = BATT 1.75 1.8 1.9 REG Voltage, LCE Mode (Note 3) VPCKP = 4.0V, IREG = 50FA, SEL1 = open 2.9 3.3 3.7 V VPCKP = 4.0V, IREG = 50FA, SEL1 = GND 2.1 2.3 2.5 VPCKP = 4.0V, IREG = 50FA, SEL1 = BATT 1.6 1.8 2.05 REG Current Limit VREG = 2.15V, VPCKP = 3.8V, AE high

75 mA VREG = 2.15V, VPCKP = 3.8V, LCE mode (Note 3)

50 FA REG Startup Time VPCKP = 4.0V, AE rising, CREG = 1FF 5.3 ms LCE Threshold High (Note 4) VIH-LCE SEL1 = open 2.175 V SEL1 = GND 1.575 SEL1 = BATT 1.30 LCE Threshold Low (Note 5) VIL-LCE SEL1 = open 0.9 V SEL1 = GND 0.6 SEL1 = BATT 0.5 PCKP REGULATOR AE Threshold High VIH-AE 1.13 V AE Threshold Low VIL-AE 0.15 V AE Low Input Current VAE = 0V, persists <

1Fs -4 -2 FA VAE = 0V, persists >

1Fs

1 nA AE High Input Current VAE = 3.6V

1 nA PCKP Enable Threshold REG enabled 3.62 3.7 3.78 V PCKP Charge Current VPCKP = 0V, VBATT = 2.2V

100 mA PCKP Impedance Ramp Rate VBATT = 4.0V, resistance between BATT and PCKP from high impedance to 5I

5 ms BATT Undervoltage Lockout (UVLO) Delay tUVLO1 VBATT = 2.15V, AE high, first ramp of PCKP

5 s BATT UVLO Delay tUVLO2 VBATT = 2.15V, AE high, not first PCKP ramp 0.5 ms BATT UVLO Threshold AE regulator active, LCE regulator inactive 1.990 2.15 2.30 V LCE regulator active, AE regulator inactive

3 Maxim Integrated Products??4 MAX17710 能量收集充电器和保护器 ELECTRICAL CHARACTERISTICS (continued) (VCHG = +4.3V, Figure 1, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1) Note 1: Specifications are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by design and characterization. Note 2: Since the CHG shunt regulator has a 25Fs delay, the user must limit the voltage to the Absolute Maximum Rating until the internal CHG shunt provides the voltage limit at the pin in response to 50mA input. Larger currents must be shunted with an external clamp to protect the CHG pin from damage. Note 3: LCE mode is entered by pulsing AE high, t........