• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without 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
2 to 4cell Li-ion/Li-polymer battery Secondary protection IC
2 to 4cell Li-ion/Li-polymer battery Secondary protection IC
MM3508A Series
Outline
MM3508A series is a double protection IC for 1 to 4 serial cells lithium-ion / lithium-polymer rechargable
battery for secondary protection IC. It detects battery voltage for each cell.
The FUSE cutting signal is the output between period of time. And the CELL voltage is released by electric
discharge after FUSE was cut.
Features
(Unless otherwise specifi ed, Topr=+25°C)
1. Range and accuracy of overcharge detection/hysteresis voltage
Overcharge detection voltage 4.0V to 4.5V, 5mV step Accuracy±20mV (Topr=0 to +50°C)
Overcharge hysteresis voltage
-
500mV to
-
50mV, 50mV step Accuracy±20%
2. Range of detection delay time
Overcharge detection delay time 1ms to (1ms×2
n1
)+(1ms×2
n2
)
n1 and n2 can select two arbitrary integers between 0 to 13. (However n1 n2)
3. Low current consumption
Typ. 3.5µA, Max. 5.0µA (Vcell=4.0V)
Typ. 0.15µA, Max. 0.30µA (Vcell=2.3V)
4. Absolute maximum ratings
VDD pin VSS
-
0.3 to VSS+28V
OV pin VSS
-
0.3V to VDD+0.3V
Storage temperature
-
55°C to +125°C
Operation temperature
-
40°C to +110°C
5. The FUSE cutting signal is the output between period of time. And the CELL voltage is released by electric
discharge resistance of "60K
" after FUSE was cut.
And CELL stops an electric discharge if the CELL voltage becomes less than the electric discharge release
voltage.
Top view
Pin No. Function
SOT-26A
13
6
5
2
4
VSSV1 OV
VDDV2 V3
1
The input terminal of the positive voltage of V2 cell and the negative voltage of V3 cell
2
The input terminal of the positive voltage of V3 cell and the negative voltage of V4 cell
3
The input terminal of the power supply of IC and the positive voltage of V4 cell
4
Output of over charge detection (Output type is CMOS)
5
The input terminal of the ground of IC and the negative voltage of V1 cell
6
The input terminal of the positive voltage of V1 cell and the negative voltage of V2 cell
Top view
Pin No. Function
SSON-6A
564
132
VSSOV V1
V2VDD V3
1
The input terminal of the power supply of IC and the positive voltage of V4 cell
2
The input terminal of the positive voltage of V3 cell and the negative voltage of V4 cell
3
The input terminal of the positive voltage of V2 cell and the negative voltage of V3 cell
4
The input terminal of the positive voltage of V1 cell and the negative voltage of V2 cell
5
The input terminal of the ground of IC and the negative voltage of V1 cell
6
Output of over charge detection (Output type is CMOS)
Pin Assignment
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without 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
2 to 4cell Li-ion/Li-polymer battery Secondary protection IC
2 to 4cell Li-ion/Li-polymer battery Secondary protection IC
MM3508B Series
Outline
MM3508B series is a double protection IC for 1 to 4 serial cells lithium-ion / lithium-polymer rechargable
secondary battery.It detects battery voltage for each cell.
Each of these IC composed of four voltage detectors, reference voltage sources, oscillator, counter circuit
and logical circuits.
Features
(Unless otherwise specifi ed, Topr=+25°C)
1. Range and accuracy of overcharge detection/hysteresis voltage
Overcharge detection voltage 4.0V to 4.5V, 5mV step Accuracy±20mV (Topr=0 to +50°C)
Overcharge hysteresis voltage
-
500mV to
-
50mV, 50mV step Accuracy±20%
2. Range of detection delay time
Overcharge detection delay time 1ms to (1ms×2
n1
)+(1ms×2
n2
)
n1 and n2 can select two arbitrary integers between 0 to 13. (However n1 n2)
3. Low current consumption
Typ. 3.5µA, Max. 5.0µA (Vcell=4.0V)
Typ. 0.15µA, Max. 0.30µA (Vcell=2.3V)
4. Absolute maximum ratings
VDD pin VSS
-
0.3 to VSS+28V
OV pin VSS
-
0.3V to VDD+0.3V
Storage temperature
-
55°C to +125°C
Operation temperature
-
40°C to +110°C
Top view
Pin No. Function
SOT-26A
13
6
5
2
4
VSSV1 OV
VDDV2 V3
1
The input terminal of the positive voltage of V2 cell and the negative voltage of V3 cell
2
The input terminal of the positive voltage of V3 cell and the negative voltage of V4 cell
3
The input terminal of the power supply of IC and the positive voltage of V4 cell
4
Output of over charge detection (Output type is CMOS)
5
The input terminal of the ground of IC and the negative voltage of V1 cell
6
The input terminal of the positive voltage of V1 cell and the negative voltage of V2 cell
Top view
Pin No. Function
SSON-6A
564
132
VSSOV V1
V2VDD V3
1
The input terminal of the power supply of IC and the positive voltage of V4 cell
2
The input terminal of the positive voltage of V3 cell and the negative voltage of V4 cell
3
The input terminal of the positive voltage of V2 cell and the negative voltage of V3 cell
4
The input terminal of the positive voltage of V1 cell and the negative voltage of V2 cell
5
The input terminal of the ground of IC and the negative voltage of V1 cell
6
Output of over charge detection (Output type is CMOS)
Pin Assignment