Battery Electronic Units About AMS Assembly Services Avionic µElectronics Circuit Card Assembly RF and Microwave Mixed-Signal IC's Motion Control Multichip Modules Power Electronics DC-DC Converters Motor Driver (Three Phase) Battery Electronic Units RadHard PWM Controllers Solid State Relay Solid State Power Controllers Solid State Gas Detectors HighRel Microelectronics Trade Shows Contact Us Aeroflex AMS Home Battery Electronic Units (BEU) BEU Solutions for Demanding Military and Space Applications BEU Family Aeroflex Plainview's new Battery Electronic Unit (BEU) Family are a lithium-ion cell balancing system offering a variety of BEUs for your high-reliability applications. BEU Family: Standard Features Cell voltage monitoring and telemetry Cell balancing to within +/-5.0mV Cell voltage monitoring accuracy +/-10mV Total battery voltage monitoring accuracy +/-0.3% of full scale MIL-STD-1553B telemetry for data logging and monitoring Discrete output lines for critical signaling with user definable thresholds: Over-voltage protection -- 4.40V typ Cell voltage high -- 4.20V typ Cell voltage low -- 3.20V typ BEU8635-08 Balancing and monitoring for 8-cell lithium-ion batteries BEU8635-12 Balancing and monitoring for 12-cell lithium-ion batteries BEU8635-24 Balancing and monitoring for 24-cell lithium-ion batteries BEU8636-08 Balancing and monitoring for 8-cell lithium-ion batteries Reconditioning load control Bypass device driver option BEU8636-12 Balancing and monitoring for 12-cell lithium-ion batteries Reconditioning load control Bypass device driver option BEU8636-24 Balancing and monitoring for 24-cell lithium-ion  batteries Reconditioning load control Bypass device driver option BEU8637-08 Independent balancing and monitoring for two 8-cell lithium-ion  batteries BEU8637-12 Independent balancing and monitoring for two 12-cell lithium-ion batteries BEU8638-08 Balancing and monitoring for two 8-cell lithium-ion batteries Reconditioning load control Bypass device driver option BEU8638-12 Independent balancing and monitoring for two 12-cell  lithium-ion batteries Reconditioning load control Bypass device driver option BEU8640-24 Dual redundant balancing and monitoring for 24-cell lithium-ion batteries Dual redundant control, cell balancing, monitoring Reconditioning load control 24 cell bypass device drivers News BEU Family Press Release - 30.5 Kb - 11/07 Data Sheets BEU8635-08 Battery Electronic Unit - 211.3 Kb - 3/08 BEU8635-12 Battery Electronic Unit - 211.7 Kb - 3/08 BEU8635-24 Battery Electronic Unit - 212.1 Kb - 10/07 BEU8636-08 Battery Electronic Unit - 253.5 Kb - 3/08 BEU8636-12 Battery Electronic Unit - 254.1 Kb - 3/08 BEU8637-08 Battery Electronic Unit - 248.4 Kb - 3/08 BEU8637-12 Battery Electronic Unit - 254.4 Kb - 3/08 BEU8638-08 Battery Electronic Unit - 286.8 Kb - 3/08 BEU8638-12 Battery Electronic Unit - 282.1 Kb - 3/08 BEU8640-24 Battery Electronic Unit - 337.4 Kb - 10/07 BEU Family Features/Differentiators - 156 Kb - 11/07 BEU Product Matrix - 57.6 Kb - 5/08 Aeroflex Short Form - 255.5 Kb - 2/08 Application Notes BEU Applications Requirement Worksheet - 35.9 Kb - 5/08 Presentations Related Information: