深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网 站 www.sbdsemi.cn EMAIL ： [email protected] 联系人：杨 生 13642365547 13543266942 MITSUMI Protection for Lithium-Ion Batteries (3-/4-serial cells) Monolithic IC MM1414 Outline This IC protects lithium-ion batteries in the event of overcharge, overdischarge and overcurrent. It has the following two functions: an overcharge detection function that turns the external FET-SW off when a problem occurs during charging, etc. and excess voltage is impressed on each battery for longer than a certain time, and an overdischarge detection function that turns the external FET-SW off when battery voltage drops below a certain voltage during discharge, in order to prevent battery overdischarge. When these functions operate, the IC enters low current consumption mode. It also has an overcurrent detection function that turns the FETSW off when excess current flows due to a short or the like. Since the functions above are provided, the protection circuitry for lithium-ion batteries can be comprised with fever external components. Series Table Temperature conditions A: Ta=-25 ~ 75°C, B: Ta=-20 ~ 70°C, C: Ta=0 ~ 50°C, D: Ta=0 ~ 40°C, E: Ta=-20 ~ 25°C TSOP-20A Overcharge detection voltage (V) Overcharge detection voltage temperature conditions Overcharge detection hysteresis voltage (V) AV CV DV FV GV 4.350±0.025 4.350±0.025 4.250±0.025 4.325±0.025 4.295±0.025 C C C C C 200±60 200±60 200±60 200±60 8±8 Package Model MM1414 Overdischarge Overdischarge Overcurrent detection resumption detection voltage (V) voltage (V) voltage (mV) 2.00±0.10 2.30±0.10 2.30±0.10 2.30±0.10 2.30±0.10 3.00±0.15 3.00±0.15 3.00±0.15 3.00±0.15 3.00±0.15 150±15 150±15 150±15 100±15 150±15 Features 1. Consumption current (during overcharge) 2. Consumption current (normal) 3. Consumption current (during overdischarge) 4. Consumption current (during overdischarge) 5. Overcurrent release conditions VCELL = 4.4 CON = 0V 55µA typ. VCELL = 3.5V CON = 0V 15µA typ. VCELL = 1.9V CON = 0V 0.5µA typ. VCELL = 1.0V CON = VCC 0.1µA max. A, C, D, G; Load open 500kΩ or more F; Load open 1MEGΩ or more Package TSOP-20A Applications Lithium-ion battery packs for note PCs 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Pin Assignment 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 TSOP-20A 1 OV 11 SEL 2 N.C 12 N.C 3 CS 13 CON 4 N.C 14 N.C 5 DCHG 15 V1 6 N.C 16 V2 7 CDC 17 V3 8 COL 18 V4 9 COV 19 N.C 10 GND 20 VCC Block Diagram 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Pin Description Pin No. Pin name I/O Functions Overcharge detection output pin 1 OV Output NPNTr open collector output Normal: high impedance Overcharge: Low 2 N.C Overcurrent detection pin Monitors load current equivalently by the voltage drop between discharge control 3 CS Input FET source and drain, and makes DCHG pin high when the voltage goes below overcurrent detection voltage, turning off discharge control FET. After overcurrent detection, current flows from this pin and when there is a light load, overcurrent mode is released. This function does not operate in overdischarge mode. 4 N.C Discharge control FET (P-ch) drivepin 5 DCHG Output Normal: Low Overdischarge: High 6 N.C 7 CDC Input 8 COL Input 9 COV Input 10 GND Input 11 SEL Input 12 N.C Overdischarge detection dead timesetting pin Dead timecan be set by connecting a capacitor between CDC pin and ground. Overcurrent detection dead timesetting pin Dead timecan be set by connecting a capacitor between COL pin and ground. Overcharge detection dead timesetting pin Dead timecan be set by connecting a capacitor between COV pin and ground. GND pin 3 cell switch pin SEL pin = GND: 3 cell (Connect V1 to GND) SEL pin = VCC: 4 cell Discharge FET ON/OFF pin 13 CON Input CONpin low;DCHG pin low(Normal mode) CONpin high; DCHG pin high (Discharging prohibited) 14 N.C 15 V1 Input V1 cellhigh side voltage input pin 16 V2 Input V2 cellhigh side voltage and V3 cell lowside voltage input pin 17 V3 Input V3 cellhigh side voltage and V4 cell lowside voltage input pin 18 V4 Input V4 cellhigh side voltage input pin 19 N.C 20 VCC Input Power supply input pin 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Pin Description Pin Equivalent circuit diagram Pin Equivalent circuit diagram 1 ; OV 9 ; COV 3 ; CS 11 ; SEL 5 ; DCHG 13 ; CON 7 ; CDC 15 ; V1 8 ; COL 16 ; V2 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Pin Equivalent circuit diagram Pin 17 ; V3 Equivalent circuit diagram 18 ; V4 Absolute Maximum Ratings Item Symbol Ratings Unit Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+70 °C Power supply voltage VCC max. -0.3~24 V OV pin impressed voltage VOV max. -0.3~24 V SEL pin impressed voltage VSEL max. -0.3~24 V CON pin impressed voltage VCON max. -0.3~24 V Allowable loss Pd 300 mW Item Symbol Ratings Unit Operating temperature TOPR -20~+70 °C Operating voltage VOPR +1.8~+24 V Recommended Operating Conditions 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=V4+V3+V2+V1, VCEL=3.5V, CON=GND, SEL=VCC) Models listed MM1414G Item Symbol Measurement conditions Consumption current (VCC pin) 1 ICC1 VCELL=4.4V, CON=0V 55 110 µA Consumption current (VCC pin) 2 ICC2 VCELL=3.5V, CON=0V 27 50 µA Consumption current (VCC pin) 3 ICC3 VCELL=1.8V, CON=0V 2 4 µA Consumption current (VCC pin) 4 ICC4 VCELL=3.5V, CON=VCC 12 20 µA Consumption current (VCC pin) 5 ICC5 VCELL=1.8V, CON=VCC 1 2 µA Consumption current (V4 pin) 1 I1V4 VCELL=4.4V 10 20 µA Consumption current (V4 pin) 2 I2V4 VCELL=3.5V 8 15 µA Consumption current (V4 pin) 3 I3V4 VCELL=1.8V 2.5 5.0 µA V3 pin input current IV3 VCELL=3.5V -300 0 +300 nA V2 pin input current IV2 VCELL=3.5V -300 0 +300 nA V1 pin input current IV1 VCELL=3.5V -300 0 +300 nA Overcharge detection voltage VCELLU VCELL : 4.2V 4.4V,Ta=0~50°C 4.270 4.295 4.320 V Overcharge hysteresis voltage VU VCELL : 4.2V 4.4V 3.9V 8 16 mV Overcharge sensing dead time tOV 1.0 1.5 s COV=0.1µF Min. Typ. Max. Unit 0.5 Overdischarge detection voltage VCELLS VCELL : 3.5V 1.8V 2.20 2.30 2.40 V VCELLD VCELL : 1.8V 3.5V 2.85 3.00 3.15 V VCELLD-VCELLS 0.45 0.70 0.95 V Discharge resume voltage Overdischarge hysteresis voltage VDS Overdischarge sensing dead time tCDC CDC=0.1µF 0.5 1.0 1.5 s Overcurrent detection voltage VOC VCC-VCS, DCHG 135 150 165 mV 20 40 mV 10 15 ms 1.5 3.0 ms 10 15 ms Overcurrent hysteresis voltage VOC Overcurrent sensing dead time1 tCOL1 COL=0.001µF Overcurrent sensing dead time2 tCOL2 COL=0.001µF, VCC-CS>1.0V Overcurrent sensing dead time3 tCOL3 COL=0.001µF 5 5 Load release conditions 500kΩ Overcurrent reset conditions DCHG pin source current ISODCH VCELL=1.8V, SW1 : A VDCHG=VCC-0.8V 20 µA DCHG pin sink current ISIDCH VCELL=3.5V, SW1 : A VDCHG=0.8V 20 µA DCHG pin output voltage H VTHDCH VCC-VDCHG, ISO =20µA, SW1 : B 0.8 V DCHG pin output voltage L VTHDCL VDCHG-GND, ISI=-20µA, SW1 : B 0.8 V OV pin sink current ISIOV VOV=0.4V, Ta=-20~+70°C OV pin leak current ILKOV VOV=24V 0.1 µA CON pin L voltage DCHG= "High" 0.4 V CON pin H voltage DCHG= "Low" CON pin current VCELL=3.5V, CON=0.4V SEL pin L voltage for 3 cell SEL pin H voltage for 4 cell SEL pin current VCELL=3.5V, SEL=0.4V 100 µA VCC-0.4 V 1 2 µA 0.4 V VCC-0.4 V 1 2 µA 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Measuring Circuit Timing Chart For overcharge Charge OFF Overcharge detection voltage Cell voltage Overcharge release voltage COV pin Sensing dead OV pin (for pull up) Normal state Overcharge Normal state 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI For overdischarge Discharge OFF Charge start Discha rge resume voltage Overdischarge Cell voltag detection voltage CON pin Sensing dead CDC pin DCHG pin Normal state Normal state Overdischarge External control Normal state Normal state Normal state For overcurrent Overcurrent Current flows from CS pin Load release CS pin COL pin Sensing dead Reset dead DCHG pin Normal state Overcurrent Normal state 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正 Protection for Lithium-Ion Batteries (3-/4-serial cells) MM1414 MITSUMI Application Circuit Note: Applicable circuits shown are typical examples provided for reference purposes. Mitsumi cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. Characteristics Overcharge & Overdischarge Sensing Dead Times OvercurrentSensing Dead Time 1, Overcurrent Reset Dead Time 3 100 Dead time (ms) Dead time (S) 10 1 0.1 0.01 0.001 0.01 0.1 1 Pin capacitance (µF) 10 1 100 1000 10000 COL pin capacitance (pF) Overcurrent Sensing Dead Time 2 Overcurrent Sensing Dead Time 2 (ms) 100 10 1 0 100 1000 10000 COL pin capacitance (pF) . 深圳市圣邦达电子有限公司 电话：086-0755-83723989 传真：086-0755-61351350 网站www.sbdsemi.cn EMAIL：[email protected] 联系人：杨 生 13642365547 13543266942 本资料来源来自互联网，一切版权归都属原设计公司，如有与法律相抵触之处，请及时联系我们，我们会及时修改更正