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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 to 4 cell Lithium-ion/Lithium-polymer battery secondaryr potection protection IC MM3625 Series 3 to 4 cell Lithium-ion/Lithium-polymer battery secondaryr potection protection IC MM3625 Series Outline The MM3625 series are secondary protection IC using high voltage CMOS process for overcharge protection of the rechargeable Lithium-ion or Lithium-polymer battery. The high accuracy overcharge detection of each cell ofthe rechargeable 3 to 4 cell Lithium-ion or Lithium- polymer battery is possible. The IC has a regulator and it ispossible to stop regulator by detected overdischarge. The internal circuit of IC is composed by the voltagedetector, the reference voltage source, delay time control circuit, the logical circuit, 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 3.4V to 4.5V, 50mV steps Accuracy±50mV VOU OFF voltage 2.1V to 3.2V, 10mV steps Accuracy±50mV VOUT ON voltage (Note1) 2.3V to 3.4V, 50mV steps Accuracy±75mV Note1 : This parameter can set when starting conditions of VOUT are voltage release (2) Range and accuracy of detection/release delay time (Note2) Overcharge detection delay time 1ms to (1ms×2 )+(1ms×2 )+(1ms×2 ) Accuracy±25% Overcharge release delay time 1ms to (1ms×2 ) Accuracy±25% VOUT OFF delay time 1ms to (1ms×2 )+(1ms×2 )+(1ms×2 ) Accuracy±25% Note2 : n1,n2 and n3 can select arbitrary integers between 0 to 17. (However n1 n2 n3) (3) Range and accuracy of regulator output voltage VOUT pin output voltage 1.8V to 5.0V, 50mV steps Accuracy±100mV (4) The setting for three cell and for four cell protection can be set with the SEL pin (5) Regulator output can be control with the EN pin It does not stop regulator during ”H” level is applied to EN pin. When EN pin is ”L” level and cell voltage lower than VOUT OFF voltage, it stop regulator (6) FUSE pin can control with the CTL pin If ”H” level is applied to CTL pin without cell voltage, FUSE pin outputs ”H” level. In case of ”L” level is applied to CTL pin, FUSE pin outputs ”H” level by overcharge detecton (7) Low current consumption Current consumption1(VDD pin) Vcell=2.5V Max. 0.1µA (When starting conditions of VOUT are EN pin.) Max. 1.0µA (When starting conditions of VOUT are cell voltage.)

 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 to 4 cell Lithium-ion/Lithium-polymer battery secondaryr potection protection IC MM3625 Series (8) Absolute maximum ratings VDD pin VSS−0.3V to VSS+20V Voltage between the input pins of voltage of battery −0.3V to +10V FUSE pin, EN pin, SEL pin,CTL pin supply voltage VSS−0.3V to VDD+0.3V VOUT pin output voltage VSS−0.3V to VSS+20V VOUT pin output current 150µA Storage temperature −55°C to +125°C Operating temperature −55°C to +125°C (9) Recommened operating conditions Operating temperature −40°C to +85°C Supply Voltage VSS 4.5V to VSS 18.0V VOUT pin output current 0 to 100µA Pin Assignment Top view Pin No. Input / Output FunctionPLP-10A VDD VSS SEL VOUT FUSE EN CTL1

1 INPUT The input terminal of the power supply of IC and the positive

voltage of V4 cell.

2 INPUT The input terminal of the positive voltage of V3 cell, and the

negative voltage of V4 cell.

3 INPUT The input terminal of the positive voltage of V2 cell, and the

negative voltage of V3 cell.

4 INPUT The input terminal of the positive voltage of V1 cell, and the

negative voltage of V2 cell. 5 INPUT The input terminal of the negative voltage of V1 cell. The input terminal of the ground of IC.

6 INPUT

This terminal is for changing function for 3cell in series or 4cell in series. Input voltage VSS 4Cell in series VDD 3Cell in series (Connect V4 and V3 pin) 7 OUTPUT Regulator output terminal.

8 OUTPUT

Charge control output terminal. Output type is CMOS.

  • Normal mode : Low
  • Overcharge mode : High

9 INPUT

Regulator output ON control terminal. Input level High Regulator output compulsion ON. VSS Regulator-off detection is possible.

10 INPUT

FUSE output ON control terminal. Input level VDD FUSE output High VSS FUSE output Low

 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 to 4 cell Lithium-ion/Lithium-polymer battery secondaryr potection protection IC MM3625 Series Please inquire to us, if you request a rank other than the above. Selection Guide Product name (MM3625***RRE) Overcharge detection voltage [V] Overcharge release voltage [V] VOUT OFF voltage [V] VOUT ON voltege [V] Overcharge detection delay time [sec] Overcharge output keep time [sec] Overcharge release delay time [msec] VOUT OFF delya time [msec] VOUT pin output voltage [V] VDD pin Current consumption1 [µA] VDD pin Current consumption2 [µA] Overcharger output latch function Overcharge timer reset delay function VOUT output starting conditionsVDET1 VREL1 VDET2 VREL2 tVDET1 tVDET1-2 tVREL1 tVDET2 VOUT IDD1 IDD2 EN pin Note4 : Y01 and Z01 rank do not have a SEL pin. Y01 rank is 3cells pr otection. Z01 rank is 4cells protection. Y01 rank and Z01 rank differ in other rank and operation. Pleas e check by specifi cations individual for details.

 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 to 4 cell Lithium-ion/Lithium-polymer battery secondaryr potection protection IC MM3625 Series Application Circuit BATT+ RTC+ BATT_ CTLMM3625 MCU BATT- SELVSS ENV1 VOUTV2 FUSEV3 CTLVDD DG S RVOUT QFUSE CVOUTRCTLRSEL RV1 RV3 RV2 RVDD CV1CV3 CVDD CV2 FUSE

  • 4 cells protection circuit SEL EN VOUT FUSE CTL MM3625 VSS VDD RV2 RV1 RVDD CV1CV2CVDD FUSE DG S QFUSE MCU BATT+ RTC+ BATT_ CTL BATT- D1 RVOUT RSEL CVOUTRCTL
  • 3 cells protection circuit