MM3575A14WBH

MITSUMI 3 to 5cells Li-ion/Li-polymer battery protection IC MM3575 Series 3 to 5cells Li-ion/Li-polymer battery protection IC MM3575 Series 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°C) 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 Accuracy±15% discharging overcurrent 1 (Note1) Short detection voltage 4 or 8 times of Accuracy±100mV discharging overcurrent 1 (Note1) 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°C) (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. • 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. MITSUMI 3 to 5cells Li-ion/Li-polymer battery protection IC MM3575 Series (3) Protected operation can be detectof 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 function Selection 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°C (12) Recommended operating conditions Operation temperature −40 to +85°C Supply Voltage VSS+3.5V to +22.5V • 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. MITSUMI 3 to 5cells Li-ion/Li-polymer battery protection IC MM3575 Series Pin Assignment Top view VSOP-24A Pin No. Function 1 The input terminal of the power supply of IC. The control terminal of output over charge detection. ISOC