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 Lithium-Ion Battery ICs
ICS
3 cell Lithium-ion/Lithium-polymer battery protection IC
MM3783 Series
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[Outline]
MM3783 series are an overcharge, overdischarge, overcurrent and temperature protection IC for a Lithiumion/Lithiumpolymer rechargeable battery. Lithium-ion/Lithium-polymer battery overcharge each cell, over discharge, and discharge and charging overcurrent, short circuits can be detected.
The detection of the temperature is enabled by connecting resistance between thermistor, TH terminal -VSS terminals between REG terminal -TH terminals.
Each of these IC composed of six voltage detectors, short detection circuit, reference voltage sources, delay time generation circuit , logical circuits and regulator 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 *1 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 2.0V to 3.5V, 50mV steps Accuracy±100mV
●Discharge overcurrent detection voltage 1 30mV to 300mV, 5mV steps Accuracy±15mV
(Typ. 50mV~)
●Discharge overcurrent detection voltage 2 Twice or 4 times of discharging
overcurrent 1
Accuracy±15%
●Short detection voltage 4 or 8 times of discharging
overcurrent 1
Accuracy±100mV
●Charging overcurrent detect voltage 300mV to 20mV, 5mV steps Accuracy±10mV
●Temperature protection detection temperature *3 25℃ to 75℃, 5℃ step Accuracy±3℃

2. Range and accuracy of delay time

●Overcharge detection delay time Setting by capacitor of COV Accuracy±50%
●Overcharge release delay time 1/10 to 10times of tVDET1 Accuracy±50%
●Overdischarge detection delay time Setting by capacitor of CUV Accuracy±50%
●Overdischarge release delay time 1/10 to 10times of tVDET2 Accuracy±50%
●Discharging overcurrent detection delay time 1 Setting by capacitor of CDOC Accuracy±50%
●Discharging overcurrent detection delay time 2 1/10 to 10times of tVDET3-1 Accuracy±50%
●Short detection delay time Typ. 200µs fixed Accuracy Min.100µs/
max.400µs
●Discharging overcurrent release delay time 1/10 to 10times of tVDET3-1 Accuracy±50%
●Charging overcurrent detection delay time Setting by capacitor of CCOC Accuracy±50%
●Charging overcurrent release delay time 1/10 to 10times of tVDET4 Accuracy±50%
●Temperature protection detection delay time Setting by capacitor of CTH Accuracy±50%
●Temperature protection release delay time 1/10 to 10times of tVDET5 Accuracy±50%

*1 Overcharge release function is selectable from 3 options(voltage decrease, charger remove, load connect).
*2 Overdischarge release function is selectable from 3 options(voltage increase , charger remove, load connect).
*3 Temperature protection detection temperature accuracy is guaranteed by design.
 Detection accuracy may change with the specification of the used NTC thermistor.

3. Temperature protection function

Temperature protection thresholds can be setting 3 value (two thresholds of high temperature,
 one threshold of low temperature) by using a NTC thermistor.
 Example of temperature protection setting
High temp protection :Charge controlDetect : +50℃±3℃, Release : +40℃±3℃
 Discharge controlDetect : +70℃±3℃, Release : +60℃±3℃
Lot temp protection :Charge/Discharge controlDetect : -10℃±3℃, Release : 0℃±3℃

*4 Detection and release temperature change according to the spec (R, B constant) of NTC.

4. 0V battery charge function     Selection from "Permission" or "Inhibition"

5. Low current consumption

●Consumption current1 (VDD), Vcell=4.4V Typ. 22.0µA, Max. 34.0µA
●Consumption current2 (VDD), Vcell=3.5V Typ. 20.0µA, Max. 26.0µA
●Consumption current3 (VDD), Vcell=1.8V Typ. 1.5µA, Max. 3.0µA

6. Input current

●V2 pin input current, Vcell=3.5V Max. ±0.3µA
●V1 pin input current, Vcell=3.5V Max. ±0.3µA

7. Absolute maximum ratings

●VDD pin VSS-0.3V to VSS+21V
●Voltage between the input terminal -0.3V to +10V
●0V pin, V pin VDD-30V to VDD+0.3V
●DCHG pin, CS pin, VSS_CS pin VSS-0.3V to VDD+0.3V
●REG, TH pin VSS-0.3V to VDD+0.3V
●COV pin, CUV pin VSS-0.3V to VDD+0.3V
●CDOC pin, CCOC pin, CTH pin VSS-0.3V to VDD+0.3V
●Storage temperature -55℃ to +125℃

8. Recommended operating conditions

●Operation temperature -30℃ to +80℃
●Operation temperature VSS+3.5V to +18.0V


[Package]


[Pin Assignment]

TSOP-16B

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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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