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 Lithium-Ion Battery ICs
ICS
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
    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)
    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
  0.9V Accuracy±300mV
Note1 : Current detection voltage Accuracy

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.)
  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

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SON-6C

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[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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