MM3575 Series

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.

For 3 to 5cells

1) Range and accuracy of detection/release voltage
●Overcharge detection voltage　3.6V to 4.5V, 5mV steps　Accuracy±25mV
●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　2.0V to 3.5V, 50mV steps Accuracy±100mV
●Discharging overcurrent detection voltage1　30mV to 300mV, 5mV steps　Accuracy±15mV
●Discharging overcurrent detection voltage2　Twice or 4 times of discharging overcurrent1　 Accuracy±15%
●Short detection voltage 4 or 8 times or discharging overcurrent 1 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

(2) Ragen 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 capacitor of COC pin. Accuracy±30%
●Discharging overcurrent detection delay time2 Setting by capacitor of COC pin. Accuracy±30%
●Short detection delay time Selection from 100μs, 200μs, 300μs Accuracy±50%
●Discharging overcurrent release delay time Setting by capacitor of COC pin. Accuracy±30%
●Charging overcurrent detection delay time Setting by capacitor of COC pin. Accuracy±30%
●Charging overcurrent release delay time Setting by capacitor of COC pin. Accuracy±30%
●Disconnected detection delay time Selection from 25ms, 50ms, 100ms Accuracy±25%
●Disconnected release delay time Selection from 1024ms, 2048ms, 4096ms Accuracy±25%
●Cell balance detection delay time Selection from 0.1s, 0.25s, 0.5s Accuracy±25%
●Cell balance releaes delay time Selection from 4ms, 8ms, 12ms Accuracy±25%

(3)Protected operation can be detectof V5 to V1 pin disconnection

(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 function Selection from “Permission” or “Prohibition”

(7) Power save mode Built–in

(8) Regulator function Built–in

(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

• VSOP-24A