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MM1294 - Protection of Lithium Ion Batteries (four cells in series)

Description

Pin no.

Features

  • 1. Current consumption (overcharging) VCELL > VCELLU 170µA typ. 2. Current consumption (normal operation) VCELL < VALM 35µA typ. 3. Current consumption (overdischarge) VCELL < VCELLS 0.1µA max. 4. Overcharge detection voltage (-20 to +70°C) VCELL : L H 4.25V±50mV/CELL 5. Overcharge hystereis voltage VCELL : H L VCELLU-200mV/CELL typ. 6. Overcharge sensing dead time C=0.1µF 1.0S typ. 7. Overcharge sensing operation voltage VCELL : L H 4.10V±150mV/CELL 8. Overdischarge detection voltage VCELL : H.

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Datasheet Details

Part number MM1294
Manufacturer MITSUMI
File Size 169.25 KB
Description Protection of Lithium Ion Batteries (four cells in series)
Datasheet download datasheet MM1294 Datasheet
Additional preview pages of the MM1294 datasheet.

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Other Datasheets by MITSUMI
  • MM1291AF - Protection of Lithium Ion Batteries (one cell)
  • MM1292 - Protection of Lithium Ion Batteries (two cells in series)
  • MM1292C - Protection of Lithium Ion Batteries (two cells in series)
  • MM1292D - Protection of Lithium Ion Batteries (two cells in series)
  • MM1292H - Protection of Lithium Ion Batteries (two cells in series)
  • MM1292J - Protection of Lithium Ion Batteries (two cells in series)
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Full PDF Text Transcription

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MITSUMI Protection of Lithium Ion Batteries (four cells in series) MM1294 Protection of Lithium Ion Batteries (four cells in series) Monolithic IC MM1294 Outline This IC provides protection for lithium ion batteries in the event of overcharging, overdischarging and overcurrents. When anomalies occur during charging or at other times and excessive voltages are applied, after a certain time has elapsed for each cell an external FET switch is turned off (overcharging detection); and in order to prevent overdischarge of the battery during discharge, when the voltage of individual batteries falls below a fixed voltage, an external FET switch is turned off (overdischarge detection), and the IC is put into low-consumption current mode.
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