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L99BM114-TR

Multicell battery monitoring and balancing IC

Operating Temp Min Celsius105.0
Operating Temp Max Celsius-40.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameTQFP 64 10x10x1.0

The L99BM114 is a Li-ion battery monitoring and protecting chip for high-reliability industrial applications and energy storage systems. Up to 14 stacked battery cells can be monitored to meet the requirements of 48 V and higher voltage systems.Each cell voltage is measured with high accuracy, as...
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Key features
  • 4 to 14 series cells battery monitoring and balancing
  • 64 V operating voltage
  • Supports busbar connection without altering cell results
  • Independent 16-bit voltage ADC for each channel with accuracy less than 2 mV
  • 18-bit ADC current measurement with coulomb counter
  • Fully synchronized current and voltage samples
  • Intelligent diagnostic routine providing automatic failure validation. Redundant fault notification through both SPI Global Status Word (GSW) and the dedicated FAULT line
  • 9 GPIOs, with up to 7 analog inputs for NTC sensing
  • Internal passive balancing up to 200 mA. Possibility to drive external balancing transistors
  • 2.66 Mbps isolated serial communication or up to 5 MHz SPI
  • Two 5 V regulators supporting external load connection with 25 mA (VCOM) and 50 mA (VTREF) current capability
  • Embedded NVM for customer parameters storage
  • System safety ready
  • 64-pin TQFP package
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Quantity $ per unit Savings
1-9$9.410%
10-24$8.5110%
25-99$8.1114%
100-249$7.0525%
250-499$6.7229%
500$6.1435%
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$9.41
Operating Temp Min Celsius105.0
Operating Temp Max Celsius-40.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameTQFP 64 10x10x1.0

The L99BM114 is a Li-ion battery monitoring and protecting chip for high-reliability industrial applications and energy storage systems. Up to 14 stacked battery cells can be monitored to meet the requirements of 48 V and higher voltage systems.Each cell voltage is measured with high accuracy, as...
Read More

Key features
  • 4 to 14 series cells battery monitoring and balancing
  • 64 V operating voltage
  • Supports busbar connection without altering cell results
  • Independent 16-bit voltage ADC for each channel with accuracy less than 2 mV
  • 18-bit ADC current measurement with coulomb counter
  • Fully synchronized current and voltage samples
  • Intelligent diagnostic routine providing automatic failure validation. Redundant fault notification through both SPI Global Status Word (GSW) and the dedicated FAULT line
  • 9 GPIOs, with up to 7 analog inputs for NTC sensing
  • Internal passive balancing up to 200 mA. Possibility to drive external balancing transistors
  • 2.66 Mbps isolated serial communication or up to 5 MHz SPI
  • Two 5 V regulators supporting external load connection with 25 mA (VCOM) and 50 mA (VTREF) current capability
  • Embedded NVM for customer parameters storage
  • System safety ready
  • 64-pin TQFP package