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 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series Outline MM3783 series are an overcharge, overdischarge, overcurrent and temperature protection IC for a Lithium- ion/Lithiumpolymer rechargeable battery. Lithium-ion/Lithium-polymer battery overcharge each cell, over discharge, and discharge and charging overcurrent, short circuits can be detected. The detection of the temperature is enabled by connecting resistance between thermistor, TH terminal -VSS terminals between REG terminal -TH terminals. Each of these IC composed of six voltage detectors, short detection circuit, reference voltage sources, delay time generation circuit , logical circuits and regulator circuit etc. Features (Unless otherwise specifi ed, Topr=+25°C) (1) Range and accuracy of detection/release voltage Overcharge detection voltage 3.6V to 4.5V, 5mV steps Accuracy±25mV (Topr=±0 to +50°C) Overcharge release voltage (Note1) 3.4V to 4.5V, 50mV steps Accuracy±50mV Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±80mV Overdischarge release voltage (Note2) 2.0V to 3.5V, 50mV steps Accuracy±100mV Discharge overcurrent detection voltage 1 30mV to 300mV, 5mV steps Accuracy±15mV (Typ. 50mV~) Discharge overcurrent detection voltage 2 Twice or 4 times of discharging overcurrent 1 Accuracy±15% Short detection voltage 4 or 8 times of discharging overcurrent 1 Accuracy±100mV Charging overcurrent detect voltage –300mV to –20mV, 5mV steps Accuracy±10mV Temperature protection detection voltage (Note3) –25°C to 75°C, 5°C step 3 Accuracy±3 °C (2) Each detection delay time set by the external capacitor Overcharge detection delay time Setting by capacitor of COV Accuracy±50% Overcharge release delay time 1/10 to 10times of tVDET1 Accuracy±50% Overdischarge detection delay time Setting by capacitor of CUV Accuracy±50% Overdischarge release delay time 1/10 to 10times of tVDET2 Accuracy±50% Discharging overcurrent detection delay time1 Setting by capacitor of CDOC Accuracy±50% Discharging overcurrent detection delay time2 1/10 to 10times of tVDET3-1 Accuracy±50% Short detection delay time Typ. 200µs fi xed Accuracy Min.100µs / Max.400µs Discharging overcurrent release delay time 1/10 to 10times of tVDET3-1 Accuracy±50% Charging overcurrent detection delay time Setting by capacitor of CCOC Accuracy±50% Charging overcurrent release delay time 1/10 to 10times of tVDET4 Accuracy±50% Temperature protection detection delay time Setting by capacitor of CTH Accuracy±50% Temperature protection release delay time 1/10 to 10times of tVDET5 Accuracy±50% Note1 : Overcharge release function is selectable from 3 options (voltage decrease, charger remove, load connect). Note2 : Overdischarge release function is selectable from 3 options(voltage increase , charger remove, load connect). Note3 : Temperature protection detection temperature accuracy is guaranteed by design. Detection accuracy may change with the specifi cation of the used NTC thermistor.

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series (3) Temperature protection function Temperature protection thresholds can be setting 3 value (two thresholds of high temperature, one threshold of low temperature) by using a NTC thermistor. Example of temperature protection setting High temp protection : Charge control Detect : +50°C ±3°C, Release : +40°C ±3°C Discharge control Detect : +70°C ±3°C, Release : +60°C ±3°C Lot temp protection : Charge/Discharge control Detect : –10°C ±3°C, Release : 0°C ±3°C Note4 : Detection and release temperature change according to the spec (R, B constant) of NTC. (4) 0V battery charge function Selection from "Permission" or " Inhibition" (5) Low current consumption (6) Input current V2 pin input current, Vcell=3.5V Max. ±0.3µA V1 pin input current, Vcell=3.5V Max. ±0.3µA (7) Absolute maximum ratings VDD pin VSS−0.3V to VSS+21V Voltage between the input terminal −0.3V to +10V 0V pin, V– pin VDD−30V to VDD+0.3V DCHG, CS, VSS_CS pin VSS−0.3V to VDD+0.3V REG, TH pin VSS−0.3V to VDD+0.3V COV, CUV pin VSS−0.3V to VDD+0.3V CDOC, CCOC, CTH pin VSS−0.3V to VDD+0.3V Storage temperature −55°C to +125°C (6) Charge and discharge FET control to temperature Operation temperature −30°C to +80°C Supply voltage VSS+3.5V to +18.0V Ta[degC] 7050–10 C-FET D-FET OFFONOFF OFFONOFF

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series Top view Pin No. Input / Output FunctionTSOP-16B CTH CDOC CCOC COV CUV DCHG OV TH REG VSS_CS VSS VDD CS

1 OUTPUT

Charge control output pin. Output type is CMOS.

  • Normal mode : ”High”
  • Charge prohibited mode : ”Low” 2 INPUT Negative voltage of charger and load input pin. Detected charger connection and load connection.

3 OUTPUT

Discharge control output pin. Output type is CMOS.

  • Normal mode : ”High”
  • Discharge prohibited mode : ”Low”

4 INPUT

This pin is delay time setting of overcharge detection and overcharge release. If a capacitor is connected between COV pin and VSS pin, overcharge detection delay time setting becomes possible.

5 INPUT

This pin is delay time setting of overdischarge detection and overdischarge release. If a capacitor is connected between CUV pin and VSS pin, overdischarge detection delay time setting becomes possible.

6 INPUT

This pin is delay time setting of discharging overcurrent detection and discharging overcurrent release. If a capacitor is connected between CDOC pin and VSS pin, discharging overcurrent delay time setting becomes possible.

7 INPUT

This pin is delay time setting of charging overcurrent detection and charging overcurrent release. If a capacitor is connected between CCOC pin and VSS pin, charging overcurrent delay time setting becomes possible.

8 INPUT

This pin is delay time setting of temperature detection and temperature release. If a capacitor is connected between CTH pin and VSS pin, temperature delay time setting becomes possible.

9 INPUT

Input of overcurrent detection. Detected overcurrent by sense resistor between CS pin and VSS_CS pin. Detection of an discharging overcurrent will output a Low level from a DCHG pin. Detection of a charging overcurrent will output a Low level from OV pin. It protects from high current by these control. 10 INPUT Temperature detection pin. 11 OUTPUT The regulator output pin for a thermo sense resistor drive. 12 INPUT Common pin of overcurrent detection circuit. 13 INPUT The input pin of the negative voltage of V1 cell. The input pin of the ground of IC.

14 INPUT The input pin of the positive voltage of V1 cell, and the

negative voltage of V2 cell.

15 INPUT The input pin of the positive voltage of V2 cell, and the

negative voltage of V3 cell.

16 INPUT The input pin of the power supply of IC, and the positive

voltage of V3 cell. Pin Assignment

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series Please inquire to us, if you request a rank other than the above. Selection Guide Product name (MM3783*VBH) Detection voltage / Release voltage Overcharge detection voltage Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Discharging overcurrent detection voltage Discharging overcurrent detection voltage Short detection voltage Charging overcurrent detection voltage V- pin threshold voltage for discharging overcurrent release V- pin threshold voltage for detecting Vf of charge FET V- pin threshold voltage for detecting Vf of discharge FET V- pin threshold voltage for overdischarge release VDET1 VREL1 VDET2 VREL2 VDET3-1 VDET3-2 VSHORT VDET4 VVM1 VVM2 VVM3 VVM4 V Product name (MM3783*VBH) Temperature protection detection / release temperature/voltage Temperature protection detection temperature 1 Temperature protection release temperature 1 Temperature protection detection temperature 2 Temperature protection release temperature 2 Temperature protection detection temperature 3 Temperature protection release temperature 3 Temperature protection detection voltage 1 Temperature protection release voltage 1 Temperature protection detection voltage 2 Temperature protection release voltage 2 Temperature protection detection voltage 3 Temperature protection release voltage 3 Regulator output voltage TTHD1 TTHR1 TTHD2 TTHR2 TTHD3 TTHR3 VTHD1 VTHR1 VTHD2 VTHR2 VTHD3 VTHR3 VREG °C VREG × xxx V V Product name (MM3783*VBH) detection delay time / release delay time Overcharge detection delay time Overcharge release delay time Overdischarge detection delay time Overdischarge release delay time Discharging overcurrent detection delay time 1 Discharging overcurrent detection delay time 2 Discharging overcurrent release delay time Short detection delay time Charging overcurrent detection delay time Charging overcurrent release delay time Temperature protection detection delay time Temperature protection release delay time tVDET1 tVREL1 tVDET2 tVREL2 tVDET3-1 tVDET3-2 tVREL3 tSHORT tVDET4 tVREL4 tVDET5 tVREL5 sec msec sec msec msec msec msec µsec msec msec sec sec Product name (MM3783*VBH) Option function Overcharge hysteresis cancel function Overcharge release function Overdischarge hysteresis cancel function Overdischarge release function Discharging overcurrent release function Charging overcurrent release function Temperature protection release function 0V battery charge function Separated current pathway of the charge and the discharge High side charge control A01 enable voltage enable voltage load remove charger remove temp Prohibition Not supported Supported A02 enable voltage enable voltage load remove charger remove temp Prohibition Not supported Supported C01 enable voltage enable load remove load remove charger remove temp Prohibition Supported Not supported C02 enable voltage enable load remove load remove charger remove temp Prohibition Supported Not supported C06 enable voltage enable load remove load remove charger remove temp Prohibition Supported Not supported C07 enable voltage enable load remove load remove charger remove temp Prohibition Supported Not supported

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series Application Circuit (1) 3 cells protection circuit (Current pathway : Separate) FUSE CS TH REG VSS_CS VSS VDD CTH CCOC CDOC CUV COV DCHG OV V CHG- SBD RSE ZD1 18V ZD3 18V ZD4 18V ZD5 18V QDG2 QDG1QOV1 0.1µF 0.1µF RV- 1.0k RDC1 100 RDC2 100 COV 0.1µF CUV 0.1µF CDOC 0.01µF CCOC 0.047µF CTH 0.1µF 1µF 1µF 10µF CTH 0.1µF CCS 0.01µ RNTC 100k RTH 100k RCS2 RCS1 100 (2) 3 cells protection circuit (Current pathway : Common) FUSE CS TH REG VSS_CS VSS VDD CTH CCOC CDOC CUV COV DCHG OV V SBD RSE ZD1 18V ZD2 18V ZD3 18V ZD4 18V ZD5 18V QDG2QOV2 QDG1QOV1 0.1µF RV- 1.0k ROV1 100 ROV2 100 RDC1 100 RDC2 100 COV 0.1µF CUV 0.1µF CDOC 0.01µF CCOC 0.047µF CTH 0.1µF 1µF 1µF 10µF CTH 0.1µF CCS 0.01µ RNTC 100k RTH 100k RCS2 RCS1 100

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series (3) Explanation of external parts : 3 cells protection circuit Parts name Roles of parts R1, E2, R3 CR low-pass fi lter to stabilize a supply ripple of VDD pin, V2 pin and V1 pin.C1, C2, C3 RCS1, RCS2, RV- Resistor to protect terminal. CCS Capacitor to stabilize a supply ripple of CS pin. C4 Capacitor to stabilize a supply ripple of drain of QDG1 and QDG2. C5 Capacitor to stabilize a supply ripple of source of QOV1. COV Capacitor to sets overcharge detection/release delay time. CUV Capacitor to sets overdischarge detection/release delay time. CDOC Capacitor to sets discharging overcurrent detection/release delay time. CCOC Capacitor to sets charging overcurrent detection/release delay time. CTH Capacitor to sets temperature protection detection/release delay time. RSENSE Sense resistance to observe charging/discharging current. ROV1, ROV2, RDC1, RDC2 Resistor for preventing the gate destruction due to parasitic oscillation. RNTC NTC thermistor to observe to temperature. RTH The REG voltage is divided by NTC and RTH, and it's input to TH pin. CTH Capacitor to stabilize a supply ripple of TH pin. ZD1 Zener diode to prevent destruction of IC by surge voltage and motor back electromotive voltage. ZD2, ZD3, ZD4, ZD5 Zener diode to prevent destruction the gate and source of charge/discharge control FET. QOV1, QOV2 Nch MOS FET to control charging current. QDG1, QDG2 Nch MOS FET to control discharging current. SBD When V- pin becomes more than it in VDD pin voltage, it is schottky barrier diode to bypass the current so that an current does not fl ow through the IC inside.

 Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements withou t prior notification.  The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications. MITSUMI 3 cell Lithium-ion/Lithium-polymer battery protection IC MM3783 Series (4) Instructions and directions for use

  • When the current pathway of the charge and the discharge is separated, wiring is separated from the drain of charge and discharge control FET.
  • When the current pathway of the charge and the discharge is separated, do not connect load and charger at the same time. It may incorrect-release from the discharging overcurrent detection state and the short detection state.
  • When the current pathway of the charge and the discharge is separated, please be sure to connect capacitor (C5) of more than 0.1uF to between the drain and the source of charge control FET.
  • If temperature protection function is repealed, please make TH pin and VDD pin connection and make a REG pin open.
  • Temperature detection property is adjusted using the thermo sensitive register of the following part number, and resistance accuracy. In order to satisfy the characteristic of specification, it recommends using the following parts. Note5 : Calculation fomula of NTC resisance and voltage of TH terminal Ra : NTC resistance when the surrounding temperature is Ta(K). R0 : NTC resistance when the surrounding temperature is T0(K). B : Thermistor constant
  • Vdet = VREG * RTH / ( RTH + Rdet ) Vdet : Temperature protection detection threshold of MM3783 TH terminal. VREG : Output voltage of MM3783 REG terminal. Rdet : NTC resistance when the surrounding temperature is detection temperature. RTH : The resistance between the TH terminal and the VSS terminal Symbol Name Function Part name Remarks RTNC NTC Thermistor 100k ±1% B (25/50) =3950±1% MF52D 104F 3950 Shenzhen DCH Electronic RTH Resistor 100k ±1%