|
|
PDF MM1292C Data sheet ( Hoja de datos )
| Número de pieza | MM1292C | |
| Descripción | Protection of Lithium Ion Batteries (two cells in series) | |
| Fabricantes | MITSUMI | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MM1292C (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
|
No Preview Available !
MITSUMI
Protection of Lithium Ion Batteries (two cells in series) MM1292
Protection of Lithium Ion Batteries (two cells in series)
Monolithic IC MM1292
Outline
This IC is for protecting a lithium ion battery from overcharging, excess discharging, and overcurrent. If
abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external
FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also
has a function that turns off the external FET switch when the voltage for each battery falls below a set
voltage, to prevent excess discharge when discharging the battery (discharging detection). At that time, the IC
is switched to low current consumption mode. Also, when there is a large current flow due to shorting or other
reasons, there is a function for turning off the external FET switch (overcurrent detection).
These functions comprise a protection circuit, with few external parts, for lithium ion batteries.
2-Cell Protection ICs
Model name
MM1302A
MM1292C
MM1292D
MM1302E
MM1302F
MM1302G
MM1292H
MM1292J
MM1292K
MM1292L
Overcharge protection
Detection voltage Hysteresis
4.25±0.05V
10mV
4.25±0.05V
200mV
4.35±0.05V
200mV
4.10±0.05V
10mV
4.35±0.05V
10mV
4.215±35V
10mV
4.30±0.05V
220mV
4.25±0.05V
220mV
4.25±0.05V
220mV
4.25±0.05V
220mV
Overdischarge protection
Detection voltage Hysteresis
2.3V±0.1V
700mV
2.4V±0.1V
600mV
2.4V±0.1V
600mV
2.4V±0.1V
600mV
None
2.3V±0.1V
700mV
2.05V±0.1V
950mV
2.4V±0.1V
600mV
2.4V±0.1V
600mV
2.2V±0.1V
800mV
Overcurrent
Detection voltage
220±20mV
150±15mV
150±15mV
150±15mV
None
220±20mV
170±15mV
150±15mV
150±15mV
100±10mV
Features
1. Current consumption (during overcharging)
2. Current consumption (normal)
3. Current consumption (during excess discharging)
4. Current consumption (during excess discharging)
5. Overcharge detection voltage (Ta=-20°C~+70°C)
6. Hysteresis voltage
7. Excess discharge detection voltage
8. Discharge resumption voltage
9. Overcurrent detection voltage
10.Reset after overcurrent detection
11.Operating limit voltage
VCELL=4.5V
VCELL=3.5V
VCELL=1.9V
VCELL=1.0V
80µA typ.
13µA typ.
0.5µA typ.
0.1µA max.
4.25V±50mV (detection for each cell)
200mV±60mV (detection for each cell)
2.4V±0.1V (detection for each cell)
3.0V±0.1V (detection for each cell)
150mV±15mV
load release
0.9V max.
Package
SOP-8C, SOP-8D(MM1292 F)
*The box represents the rank resulting from the combination of protection functions.
1 page  
MITSUMI
Protection of Lithium Ion Batteries (two cells in series) MM1292
Electrical Characteristics (unless otherwise specified, Ta=25°C)
Item
Current consumption 1
Current consumption 2
Current consumption 3
Current consumption 4
VL pin input voltage
Overcurrent detection voltage
Hysteresis voltage
Overcharge detection voltage
Discharge resumption voltage
Starting voltage
GD pin output voltage H
GD pin output voltage L
OC pin output current
Overcurrent detection voltage
Reset by overcurrent
Overcurrent detection delay 1
Overcurrent detection delay 2
Excess discharge detection delay
TC pin charge current
Symbol
IVH1
IVH2
IVH3
IVH4
IVL
VALM
VAL
VS
VDF
VST
VGDH
VGDL
IOCH
VCS
TOC1
TOC2
TOD
ITC1
TC pin threshold value
VTC
Non-induction time for overcharge
Operating limit voltage
TOC
VOPL
Measurement Conditions
Min. Typ. Max. Units
VCELL=4.5V, ROC=270kΩ
80 100 µA
VCELL=3.5V (normal)
13.0 20.0 µA
VCELL=1.9V (During excess discharge)
0.5 0.8 µA
VCELL=1.0V (During excess discharge)
0.1 µA
VH=VL
-0.3 0 0.3 µA
Ta=-20°C~70°C
4.20 4.25 4.30 V
VAL=VALMH-VALML
140 200 260 mV
2.30 2.40 2.50 V
Discharge resumed through voltage rise 2.90 3.00 3.10 V
Voltage applied between GND-CS pins -0.6 -0.5
V
VCELL=3.5V, IL=10µA
VH-0.3 VH-0.2
V
VCELL=3.5V, IL=10µA, VCS=1V
0.2 0.3 V
VCELL=4.5V
20 150
µA
135 150 165 mV
load release
10 20
mS
between CS-GND pins > 0.8V
30 100 µS
10 20
mS
30 50 80 nA
VCELL=4.5V, VTC=0 5V
VOC=L H
3.65 3.90 4.15 V
CTC=0.012µF
0.5 1.0 1.5 S
0.9 V
Note 1. For current consumption, it is assumed that high side cell voltage and low side cell voltage are
identical. When the cell voltages differ, it is set by the higher voltage.
2. GD pin are high impedance when the current consumption is below the operating limit voltage.
3. When the circuit configuration calls for discharge resumption through charging, the discharge
resumption voltage is 2.4V typ.
Description of Operation
[Outline]
This IC is used for protecting lithium ion batteries (two cell series connection type). Overcharge detection,
excess discharge detection, and overcurrent detection are built into each circuit. It controls the FET for
discharge control and charge control (external N-MOS FET). There are four major operating modes.
1. Overcharge mode
When the voltage between Vh-VI and VI-GND exceeds the overcharge voltage (VALM).
2. Normal mode
When the voltage between Vh-VI and VI-GND exceeds the excess discharge voltage (VS) and is less
than the over charge voltage (VALM).
3. Excess discharge mode
When the voltage between Vh-VI and VI-GND is less than the excess discharge voltage (VS).
4. Overcurrent mode
When the voltage between CS-GND is less than the overcurrent voltage (VCS).
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MM1292C.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MM1292 | Protection of Lithium Ion Batteries (two cells in series) | MITSUMI |
| MM1292C | Protection of Lithium Ion Batteries (two cells in series) | MITSUMI |
| MM1292D | Protection of Lithium Ion Batteries (two cells in series) | MITSUMI |
| MM1292H | Protection of Lithium Ion Batteries (two cells in series) | MITSUMI |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |