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 Lithium-Ion Battery ICs
ICS
3 to 5cells Li-ion/Li-polymer battery protection IC
MM3575 Series
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[Outline]
The MM3575 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, cell balance and V5 to V3 pin disconnect of the rechargeable 3 to 5cell Lithium-ion or Lithium-polymer battery can be detected. By using cascade connection, it is also possible to protect 6 or more cells rechargeable Lithium-ion battery. And the regulator can be constructed by using external Nch MOS FET. The internal circuit of IC is composed by the voltage detector, the reference voltage source, delay time control circuit, and the logical circuit, etc.


[Features] (Unless otherwise specified, Topr=+25°C)

1. Range and accuracy of detection/release voltage

●Overcharge detection voltage 3.6V to 4.5V, 5mV steps Accuracy±25mV
(Topr=±0 to +50℃)
●Overcharge release voltage 3.4V to 4.5V, 50mV steps Accuracy±50mV
●Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±80mV
●Overdischarge release voltage (Note4) 2.0V to 3.0V, 50mV steps Accuracy±100mV
●Discharging overcurrent detection voltage 1 30mV to 300mV, 5mV steps Accuracy±15mV
(typ 50mV~)
●Discharging overcurrent detection voltage 2 Twice or 4 times of
discharging overcurrent 1 (Note1)
Accuracy±15%
●Short detection voltage 4 or 8 times of
discharging overcurrent 1 (Note1)
Accuracy±100mV
●Charging overcurrent detect voltage -300mV to -20mV, 5mV steps Accuracy±10mV
●Cell balance detection voltage 3.6V to 4.5V, 5mV steps Accuracy±30mV
(Topr=±0 to +50℃)

2. Range of detection delay time

●Overcharge detection delay time Selection from
0.25s, 1.0s, 1.2s, 4.1s
Accuracy±25%
●Overcharge release delay time Selection from
10ms, 24ms, 48ms, 100ms
Accuracy±25%
●Overdischarge detection delay time Selection from
0.25s, 1.0s, 1.2s, 4.1s
Accuracy±25%
●Overdischarge release delay time Selection from
4ms, 8ms, 12ms, 24ms
Accuracy±25%
●Discharging overcurrent detection delay time1 Setting by a capacitor of COC pin.
(Note2)
Accuracy±30%
●Discharging overcurrent detection delay time2 Setting by a capacitor of COC pin.
(Note2)
Accuracy±30%
●Short detection delay time Selection from
100µs, 200µs, 300µs
Accuracy±50%
●Discharging overcurrent release delay time Setting by a capacitor of COC pin.
(Note2)
Accuracy±30%
●Charging overcurrent detection delay time Setting by a capacitor of COC pin.
(Note2)
Accuracy±30%
●Charging overcurrent release delay time Setting by a capacitor of COC pin.
(Note2)
Accuracy±30%
●Disconnect detection delay time Selection from
25ms, 50ms, 100ms
Accuracy±25%
●Disconnect release delay time Selection from
1024ms, 2048ms, 4096ms
Accuracy±25%
●Cell balance detection delay time Selection from
0.1s, 0.25s, 0.5s (Note3)
Accuracy±25%
●Cell balance release delay time Selection from
4ms, 8ms, 12ms
Accuracy±25%
Note1 : Optional function
Note2 : Since the capacity is the same, each delay times will change when a value is changed without
short detection delay time.
Note3 : Cannot do shorter than disconnect detection delay time.
Note4 : The discharge state release method can choose a voltage release and a load open.

3. Protected operation can be detect of V5~V1 pin disconnection

When any of V5 to V1 pin open, it will detect disconnection and charge and discharge prohibited state.
Protection mode of disconnection can be chosen from three, prohibition of charge, prohibition of discharge and prohibition of charge and discharge (Optional)
The release from disconnection protection is done by disconnection point being connected.

4. The setting for three cell, for four cell, and for five cell protection can be set with the SEL pin.

5. The charge and discharge of the battery can be controlled with SDC pin and SOC pin.

6. 0V battery charge functionSelection from "Prohibition" or "Permission"

7. Power save mode built-in

It is possible to make it shift to low consumption current mode arbitrarily.
Transition of power save mode is used by SDC,SOC pins.
It shifts to a power save mode by making SDC and SOC pin into a VSS level.

8. Regulator function built-in

Connecting drain of external Nch MOS FET gate to DRIVE pin and source to REG_IN pin, it can operate as a regulator.
The regulator operates independently with protected operation, such as overcharge detection.
Regulator voltage can be chosen at 0.1V step among 3.3V to 5.0V.

9. Low current consumption

●VDD pin current consumption (Vcell=4.3V) Typ. 25.0µA, Max. 35.0µA
●VDD pin current consumption (Vcell=3.5V) Typ. 20.0µA, Max. 30.0µA
●VDD pin current consumption (Vcell=2.0V) Typ. 10.0µA, Max. 15.0µA
●VDD pin current consumption at power save1 (Vcell=3.5V) Typ. 12.0µA, Max. 16.0µA
●VDD pin current consumption at power save2 (Vcell=3.5V) Typ. 4.0µA, Max. 6.0µA
●V5 pin current consumption (Vcell=4.3V) Typ. 4.0µA, Max. 6.0µA
●V5 pin current consumption (Vcell=3.5V) Typ. 2.0µA, Max. 3.0µA
●V5 pin current consumption (Vcell=2.0V) Typ. 1.0µA, Max. 1.5µA
●V5 pin current consumption at power save (Vcell=3.5V) Max. 0.05µA

10. Input current

●V4 pin input current (Vcell=3.5V) Max. 1.0µA
●V3 pin input current (Vcell=3.5V) Max. 1.0µA
●V2 pin input current (Vcell=3.5V) Max. 1.0µA
●V1 pin input current (Vcell=3.5V) Max. 1.0µA

11. Absolute maximum ratings

●VDD, CS1, CS2 pin VSS-0.3V to VSS+30V
●V5 pin V4-0.3V to VDD+0.3V
●Voltage between the input terminals -0.3V to +10V
●OV, VM1, VM2 pin VDD-30V to VDD+0.3V
●OUT1 to 5 pin Vn-1-0.3V to VDD+0.3V
●DCHG, SEL, SDC, SOC pin VSS-0.3V to VDD+0.3V
●DRIVE, REG_IN pin VSS-0.3V to VDD+0.3V
●Storage temperature -55 to +125℃

12. Recommened operating conditions

●Operation temperature -40 to +85℃
●Supply Voltage VSS+3.5V to +22.5V


[Package]


[Pin Assignment]

VSOP-24A

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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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