• 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
1 to 4 cells lithium-ion/lithium-polymer battery Secondary protection IC
1 to 4 cells lithium-ion/lithium-polymer battery Secondary protection IC
MM3284 Series
Outline
MM3284 series are secondary protection IC using high voltage CMOS process for overcharge protection of
the rechargeable lithium-ion or lithium-polymer secondary battery. The high accuracy overcharge detection
of each cell of the rechargeable 1 to 4 serial cells lithium-ion or lithium-polymer secondary battery is possible.
With a timer circuit built-in, it is possible to set overcharge detection delay time.
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
Overcharge hysteresis voltage 50mV to 1000V, 50mV step
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. 2.5µA, Max. 5.0µA (Vcell=3.5V)
Typ. 2.0µA, Max. 4.0µA (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 to +125°C
Operation temperature
-
40 to +110°C
1 OV tarminal output Normal mode : "Low"
Overcharge mode : "High"
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
1 to 4 cells lithium-ion/lithium-polymer battery Secondary protection IC
Selection Guide
(3000pcs/Reel)
Product name Package Function
Overcharge detection
voltage
[V]
Overcharge hysteresis
voltage[mV]
Overcharge
detection
dead time
[s]
Output type
V
CELLUVHYS TOV
MM3284ANREH SOT-26A 1 to 4 cells 4.350±0.030 200±60 1.2
CMOS Output
Active High
MM3284CNREH SOT-26A 1 to 4 cells 4.350±0.030 1000±200 10
MM3284CRRE SSON-6A 1 to 4 cells 4.350±0.030 1000±200 10
MM3284ENREH SOT-26A 1 to 4 cells 4.450±0.030 200±60 1.2
MM3284FNREH SOT-26A 1 to 4 cells 4.350±0.030
V4 : 680±100
V3 to V1 : 340±100
1.2
MM3284GRRE SSON-6A 1 to 4 cells 4.450±0.030 1000±200 10
MM3284HNREH SOT-26A 1 to 4 cells 4.350±0.030 1000±200 5.0
MM3284INREH SOT-26A 1 to 4 cells 4.450±0.030 1000±200 5.0
MM3284JRRE SSON-6A 1 to 4 cells 4.400±0.030 1000±200 10
MM3284MRRE SSON-6A 1 to 4 cells 4.280±0.030 1000±200 4.1
MM3284NNREH SOT-26A 1 to 4 cells 4.450±0.030 200±60 4.1
MM3284PNREH SOT-26A 1 to 4 cells 4.300±0.030
V4 : 620±100
V3 to V1 : 270±100
2.0
MM3284RNREH SOT-26A 1 to 4 cells 4.450±0.030
V4 : 750±100
V3 to V1 : 420±100
2.0
MM3284TRRE SSON-6A 1 to 4 cells 4.220±0.030 1000±200 10
MM3284URRE SSON-6A 1 to 4 cells 4.220±0.030 200±60 0.1
Please inquire to us, if you request a rank other than the above.