MITSUMI
3 to 5cells lithium-ion/lithium-polymer battery protection IC
3 to 5cells lithium-ion/lithium-polymer battery protection IC
Monolithic IC MM3474 Series
Outline
MM3474 series is an overcharge, overdischarge and overcurrent protection IC for a lithium-ion / lithium-
polymer rechargeable secondary battery. Lithium-ion / lithium-polymer rechargeable secondary battery
overcharge each cell, over discharge, and discharge overcurrent, short circuits can be detected.
This supports 3 to 5 serial cells connected in series, and switches over to the desired no. of cells by sending
High / Low signal to SEL terminal.
This also provides the control terminals of output over discharge detection (SDC) and output over charge
detection (SOC), which allows configuring an application with fewer external parts for 6 or more cells
connected in series.
Features
(Unless otherwise specified, Topr=+25°C)
(1) Range and accuracy of detection / release voltage
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Overcurrent detect voltage
Short detection voltage
3.6V to 4.5V, 5mV steps
3.4V to 4.5V, 50mV steps
2.0V to 3.0V, 50mV steps
2.0V to 3.4V, 50mV steps
50mV to 300mV, 5mV steps
0.2V to 1.0V, 50mV steps
Accuracy±25mV (Topr=±0 to +50°C)
Accuracy±50mV
Accuracy±80mV
Accuracy±100mV
Accuracy±15mV
Accuracy±100mV
(2) Each detection delay time set by the external capacitor
(3) The setting for three cell , for four cell , and for five cell protection can be set with the SEL1 pin
and the SEL2 pin.
(4) The charge and discharge of the battery can be controlled with SDC pin and SOC pin.
(5) Low current consumption
Consumption current1 (Vdd) , Vcell=4.4V
Consumption current2 (Vdd) , Vcell=3.5V
Consumption current3 (Vdd) , Vcell=1.8V
Consumption current1 (V5) , Vcell=4.4V
Consumption current2 (V5) , Vcell=3.5V
Consumption current3 (V5) , Vcell=1.8V
Typ. 10.0µA, Max. 20.0µA
Typ. 5.0µA, Max. 10.0µA
Typ. 1.5µA, Max. 3.0µA
Typ. 4.0µA, Max. 8.0µA
Typ. 3.0µA, Max. 6.0µA
Typ. 1.5µA, Max. 3.0µA
(6) Absolute maximum ratings
VDD pin
V5 pin
Between the input terminals of voltage of battery
V− pin, CS pin
OV pin, DCHG pin
SEL pin
SDC pin, SOC pin
Storage temperature
Operation temperature
VSS2−0.3V to +30V
V4−0.3V to VDD+0.3V
−0.3V to +10V
VDD−30V to VDD+0.3V
VSS2−0.3V to VDD+0.3V
VSS2−0.3V to VDD+0.3V
VSS2−0.3V to VDD+0.3V
−55 to +125ºC
−40 to +85ºC
• 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
3 to 5cells lithium-ion/lithium-polymer battery protection IC
Pin Assignment
Top view
TSOP-20D
OV
V-
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SOC
SDC
VDD
V5
V4
V3
V2
V1
SEL2
SEL1
CS
DCHG
COV
CDC
COL1
COL2
VSS1
VSS2
Selection Guide
(2000pcs/Reel)
Detection / Release voltage
Short detection voltage
Overdischarge release
voltage
Overcurrent detection
voltage
Detection / Release voltage
Overdischarge release
dead time
Overcurrent detection
dead time
Overcharge detection
dead time
Optional function
Overdischarge release
*1
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Non Latch
Latch
Overcharge detection
voltage
Overdischarge
detection dead time
Product
name
V
CELL
U V
CELL
O
V
MM3474C01VBE
MM3474C02VBE
MM3474C03VBE
MM3474D01VBE
MM3474D03VBE
MM3474E01VBE
MM3474E02VBE
MM3474E03VBE
MM3474E04VBE
MM3474E05VBE
MM3474F01VBE
MM3474F02VBE
MM3474F03VBE
MM3474F04VBE
MM3474F05VBE
MM3474G01VBE
MM3474G02VBE
MM3474G03VBE
MM3474G05VBE
MM3474J01VBE
MM3474K01VBE
MM3474L01VBE
MM3474L02VBE
MM3474M01VBE
MM3474N01VBE
4.250
4.250
4.250
3.850
3.800
4.250
4.200
4.175
4.250
4.250
4.250
4.200
4.250
4.250
4.250
4.200
4.250
4.200
4.250
4.250
4.250
3.650
3.750
4.350
3.900
V
4.150
4.150
4.150
3.650
3.600
4.150
4.100
4.100
4.150
4.150
4.150
4.100
4.150
4.210
4.150
4.100
4.150
4.100
4.150
4.100
4.100
3.500
3.550
4.150
3.600
V
CELL
S
V
2.800
2.400
2.800
2.300
2.000
2.800
2.800
2.800
2.800
2.800
2.500
2.500
2.500
2.500
2.500
2.750
2.750
2.750
2.750
2.800
3.000
2.000
2.200
2.300
2.000
V
CELL
D
V
3.000
2.600
3.000
2.500
2.500
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.300
2.700
2.700
3.000
3.000
V
OC
mV
250
250
250
150
150
150
150
150
100
50
150
100
100
100
100
100
100
100
100
50
100
100
100
150
100
V
SHORT
V
1.00
1.00
0.80
1.00
0.60
1.00
1.00
0.50
0.50
0.40
1.00
1.00
0.30
0.80
0.25
1.00
1.00
0.40
0.40
1.00
0.30
0.30
0.40
0.50
0.20
t
OV1
sec
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
t
OV2
msec
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
t
DC1
sec
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
t
DC2
msec
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
Max.5
t
OC1
msec
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
msec
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
1
Non Latch
Latch
: voltage release
: voltage release + load remove
Please inquire to us, if you request a rank other than the above.
• 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.
Overcurrent release
dead time
t
OC2
Overcharge release
voltage
Overcharge release
dead time
Overdischarge
detection voltage
MITSUMI
3 to 5cells lithium-ion/lithium-polymer battery protection IC
Application Circuit
· 5 cells protection circuit
P+
MM3474(1)
OV
R
VM1
2.2k
Q
VM1
1
2
3
DCHG
R
CS
2.2k
C
COV1
0.1μF
R
DV1
4.3M
C
CDC1
0.1μF
C
COL1
0.001μF
4
5
6
7
8
9
OV
V−
CS
DCHG
COV
CDC
COL1
COL2
VSS1
SOC 20
SDC 19
V
DD
18
V5 17
V4 16
V3 15
V2 14
V1 13
SEL2 12
SEL1 11
R
SEL21
1k
R
SEL11
1k
C
SOC1
0.1μF
C
SDC1
0.1μF
R
SOC11
1M
R
SDC11
470k
C
VDD1
2.2μF
C
V51
0.1μF
C
V41
0.1μF
C
V31
0.1μF
R
VDD1
100
R
V51
1k
R
V41
1k
R
V31
1k
R
V21
1k
V5
V4
V3
V2
V1
D2
R
OV1
4.3M
D1
C
V21
0.1μF R
V11
1k
C
V11
0.1μF
R
OV2
5.6M
R
DV2
C
COL2
5.6M 0.001μF
10 VSS2
DCHG-
CHG-
R
SENSE
5m
Charge Discharge
control
control
FET
FET
SEL1
H
H
L
SEL2
H
L
H
mode
5Cell in series
4Cell in series (Connect V1 and VSS terminal)
3Cell in series (Connect V2,V1 and VSS terminal)
It becomes a static test mode in SEL1=SEL2=Low.
• 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.
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