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Lithium-Ion Battery ICs |
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1cell Li-ion/Li-polymer battery protection IC
MM3724 Series |
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[Outline]
The MM3724 series are protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge, discharging overcurrent, charging overcurrent, and short protection of the rechargeable onecell Lithium-ion or Lithium-polymer battery can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources, oscillator, counter circuit and logical circuits.
[Features] (Unless otherwise specified, Topr=+25℃)
1. Range and accuracy of detection voltage
| ●Overcharge detection voltage |
3.6V to 5.0V, 5mV step |
Accuracy±20mV |
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Accuracy±25mV
(Topr=-20℃ to +60℃) |
| ●Overcharge release voltage |
Vdet1-0.2V to Vdet1, 5mV step |
Accuracy±30mV |
| ●Overdischarge detection voltage |
2.0V to 3.0V, 50mV step |
Accuracy±35mV |
| ●Overdischarge release voltage |
2.0V to 3.0V, 50mV step |
Accuracy+65/-35mV
(In case Vdet2=Vrel2) |
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Accuracy+90/-65mV
(In case Vdet2≠Vrel2) |
| ●Discharging overcurrent detection voltage |
20mV to 300mV, 1mV step |
Accuracy±Δ (Note1) |
| ●Charging overcurrent detection voltage |
-300mV to -20mV, 1mV step |
Accuracy±Δ (Note1) |
| ●Short detection voltage |
40mV to 350mV, 1mV step |
Accuracy±8% |
| ●0V battery charge inhibition battery voltage |
1.3V to 1.8V/0.1V step |
Accuracy±100mV |
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0.9V |
Accuracy±300mV |
| Note1 : Current detection voltage Accuracy |
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2. Delay time setting
| ●Overcharge detection delay time |
256ms to 4.6s |
| ●Overdischarge detection delay time |
8ms to 256ms |
| ●Discharging overcurrent detection delay time |
8ms to 256ms |
| ●Charging overcurrent detection delay time |
6ms to 64ms |
| ●Short detection delay time |
250µs to 400µs |
3. Current consumption
| ●Normal mode |
Typ. 3.0µA, Max. 6.0µA |
| ●Stand-by mode |
Max. 0.1µA (In case Overdischarge latch function Enable.) |
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Max. 0.6µA (In case Overdischarge latch function Disable.) |
4. 0V battery Charge functionSelectable ”Permission” or ”Inhibition”
5. Absolute maximum ratings
| ●VDD pin |
VSS-0.3V to +12V |
| ●COUT pin and V- pin |
VDD-28V to VDD+0.3V |
| ●DOUT pin |
VSS-0.3V to VDD+0.3V |
| ●Storage temperature |
-55℃ to +125℃ |
| ●Operation temperature |
-40℃ to +85℃ |
[Package]
[Pin Assignment]
SSON-6J
SON-6C
[NOTE]
-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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