MM3625 Series

Lithium-Ion Battery 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 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.

Outline

The MM3625 series are secondary protection IC using high
voltage CMOS process for overcharge protection of the
rechargeable lithium–ion or lithium–polymer battery. The high accuracy overcharge detection of each cell ofthe rechargeable 3,4 cell Lithium-ion or Lithium-polymer battery is possible.The IC has a regulator and it ispossible to stop regulator by
detected overdischarge.The internal circuit of IC is composed by the voltagedetector, the reference voltage source, delay time control circuit, the logical circuit, and regulator circuit etc.

For 3 to 4 cells secondary protection
(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
● VOU OFF voltage 2.1V to 3.2V, 10mV steps Accuracy±50mV

(2) Range and accuracy of detection/release delay time
● Overcharge detection delay time time1ms to (1ms×2n1)+(1ms×2n2)+(1ms×2n3) Accuracy±25%
● Overcharge release delay time 1ms to (1ms×2n1) Accuracy±25%
● VOUT OFF delay time 1ms to (1ms×2n1)+(1ms×2n2)+(1ms×2n3) Accuracy±25%
*n1,n2 and n3 can select arbitrary integers between 0 to 17. (However n1≠n2≠n3)

(3) Range and accuracy of regulator output voltage
● VOUT pin output voltage 1.8V to 5.0V, 50mV steps Accuracy±100mV

(4) The setting for three cell and for four cell protection can be set with the SEL pin

(5) Regulator output can be control with the EN pin

(6) FUSE pin can control with the CTL pin

(7) Low current consumption
● Current consumption1(VDD pin) Vcell=3.5V Typ. 4.5μA Max. 6.5μA
● Current consumption1(VDD pin) Vcell=2.5V Max. 0.1μA(When starting conditions of VOUT are EN pin.)
Max. 1.0μA(When starting conditions of VOUT are cell voltage.

Click the arrow icon in the table below to switch from ascending to descending order.

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Product name	Package	Latch function	Overcharge detection voltage [V]	Overcharge release voltage [V]	VOUT OFF voltage [V]	VOUT pin output voltage [V]	Overcharge detection delay time [s]	Overcharge release delay time [ms]
MM3625A01RRE	PLP-10A	〇	4.425		2.750	2.900	4.100
MM3625A02RRE	PLP-10A	〇	4.300		2.500	3.300	4.100
MM3625B02RRE	PLP-10A		4.450	4.250	2.500	3.300	4.100	16.0
MM3625B03RRE	PLP-10A		4.450	4.250	2.750	3.300	7.170	16.0
MM3625B04RRE	PLP-10A		4.500	4.300	2.750	3.300	7.170	16.0
MM3625Y01RRE	PLP-10A	〇	4.425		2.750	2.900	4.100
MM3625Z01RRE	PLP-10A	〇	4.425		2.750	2.900	4.100