MM3722 [MITSUMI]
1cell Li-ion/Li-polymer battery protection IC;型号: | MM3722 |
厂家: | MITSUMI ELECTRONICS, CORP. |
描述: | 1cell Li-ion/Li-polymer battery protection IC |
文件: | 总3页 (文件大小:49K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MITSUMI
1cell Li-ion/Li-polymer battery protection IC MM3722 Series
1cell Li-ion/Li-polymer battery protection IC
MM3722 Series
Outline
MM3722 series are Li-ion battery protection IC and detect charge current / discharge current with high
precision by current sensing resistor (Rsns). In the One-cell battery pack, on resistance of the FET SW has
been used for over-current/short-current detection. MM3722 realize over-current/short-current protection
with high accuracy and with no temperature dependence by using a chip resistor.
(Unless otherwise specified, Topr=+25°C)
Features
(1) Range and accuracy of detection voltage
Overcharge detection voltage
3.6V to 5.0V, 5mV step
Accuracy 20mV
Accuracy 25mV (Topr=−20 to +60°C)
Accuracy 30mV
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Vdet1−0.2V to Vdet1, 5mV step
2.0V to 3.0V, 50mV step
Accuracy 35mV
2.0V to 3.0V, 50mV step
Accuracy+65/-35mV (In case Vdet2=Vrel2)
Accuracy+90/-65mV (In case Vdet2 Vrel2)
Discharging overcurrent detection voltage
Charging overcurrent detection voltage
Short detection voltage1
20mV to 150mV, 1mV step
−150mV to −20mV, 1mV step
40mV to 250mV, 1mV step
VDD−0.9V
Accuracy
Accuracy
Accuracy
(Note1)
(Note1)
(Note2)
Short detection voltage2
Accuracy 300mV
Accuracy 100mV
Accuracy 300mV
0V battery charge inhibition battery voltage
1.3V to 1.8V / 0.1V step
0.9V
Note1 : Current detection voltage Accuracy
Note2 : Short detection voltage1 Accuracy
Vdet3, Vdet4 Accuracy
Vshort1 Accuracy
10
20
8
6
4
2
15
10
5
0
20 30
40
50
60
70
80
90 100
40
50
60
70
80
90
100
Vdet3, Vdet4 (mV)
Vshort1 (mV)
(2) Delay time setting
Overcharge detection delay time
256ms to 4.6s
8ms to 256ms
8ms to 256ms
6ms to 64ms
250µs to 400µs
Overdischarge detection delay time
Discharging overcurrent detection delay time
Charging overcurrent detection delay time
Short detection delay time
(3) Current consumption
Normal mode
Typ. 3.0µA, Max. 6.0µA
Stand-by mode
Max. 0.1µA (In case Overdischarge latch function Enable)
Max. 0.6µA (In case Overdischarge latch function Disable)
(4) 0V battery Charge function
Selectable ”Permission” or ”Inhibition”
(5) Absolute maximum ratings
VDD pin
VSS−0.3V to +12V
VDD−28V to VDD+0.3V
VSS−0.3V to VDD+0.3V
−55°C to +125°C
COUT pin and V− pin
DOUT pin and CS pin
Storage temperature
Operation temperature
−40°C to + 85°C
• 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
1cell Li-ion/Li-polymer battery protection IC MM3722 Series
Pin Assignment
Top view
Pin No.
1
Function
SSON-6J
SON-6C
Negative power supply voltage input
terminal
DOUT COUT V-
DOUT COUT
V-
Positive power supply voltage input
terminal
Current detection terminal
Charger negative voltage input
terminal
2
3
4
6
5
4
6
5
4
1
2
3
1
2
3
VSS VDD
CS
VSS VDD CS
5
6
Charge FET control terminal
Discharge FET control terminal
Product Line up
Protection mode latch function
Hys-Cancel
Product name
Package
Vdet1
Vrel1
V
Vdet2
V
Vrel2
V
Vdet3
V
Vdet4 Vshort
V
V
V
MM3722AJ1YRE
MM3722AJ4RRE
MM3722AM1RRE
MM3722KF1RRE
MM3722KF2RRE
MM3722KF3RRE
MM3722KF4RRE
SON-6C Permission Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.425 4.225 2.500 2.900 0.036
SSON-6J Permission Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.470 4.270 2.500 2.900 0.049
-0.020 0.060
-0.031 0.160
-0.020 0.060
-0.030 0.180
-0.022 0.180
-0.030 0.180
-0.030 0.180
B
C
B
A
A
A
A
SSON-6J
SSON-6J
SSON-6J
SSON-6J
SSON-6J
0.9
0.9
0.9
0.9
1.5
Disable Disable Disable Enable Enable Yes (VDD-0.9V) 4.475 4.275 2.500 2.900 0.032
Enable Enable Disable
Enable Enable Disable
Enable Enable Disable
Enable Enable Disable
Yes (1.0V) 4.280 4.280 2.400 2.400 0.032
Yes (1.0V) 4.425 4.425 2.400 2.400 0.034
Yes (1.0V) 4.425 4.425 2.800 2.800 0.040
Yes (1.0V) 4.425 4.425 2.600 2.600 0.040
Note2 : Delay time
tVdet1 [s]
tVrel1 [ms] tVdet2 [ms] tVrel2 [ms] tVdet3 [ms] tVrel3 [ms] tVdet4 [ms] tVrel4 [ms] tshort [µs]
A
B
C
1.000
1.024
1.024
8.00
16.00
16.00
20.00
96.00
1.00
1.00
1.00
12.00
12.00
16.00
1.00
1.00
1.00
16.00
10.00
8.00
1.00
1.00
1.00
250
300
250
125.00
Please inquire to us, if you need another spec.
• 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
1cell Li-ion/Li-polymer battery protection IC MM3722 Series
Application Circuit
B+
P+
R1
VDD
Delay Short
0V cell
Charge
Oscillator
Over
charge
Counter
Logic
Discharge
current
over
Cell
C1
C2
Over
discharge
Charge
over
current
Protection
mode
release
Rpu
Delay
Rshort
V−
VSS
Short1
Short2
R2
CS
DOUT
DFET
COUT
CFET
Rsns
C3
B−
P−
C4
Symbol
R1
Part
Resistor
Capacitor
Resistor
Capacitor
Capacitor
Resistor
Min.
0.01µF
Typ.
Max.
1k
1.0µF
10k
Purpose
100
0.1µF
1.0k
0.1µF
0.1µF
For voltage fluctuation, For ESD
For voltage fluctuation
Current limit for charger reverse connection
For exogenous noise
For exogenous noise
Current detection resistance
For exogenous noise
C1
R2
C2
C3
Rsns
C4
20m
Capacitor
0.1µF
DFET
CFET
Nch MOS FET
Charge and discharge control
This typical application circuit and constant value do not guarantee proper operation.
Please evaluate thoroughly by actual application to set up constants.
• 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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