Infineon Technologies TLE9012DQU

The TLE9012DQU is a multi-channel battery monitoring and balancing IC designed for Li-Ion battery packs used in many applications in the auto-motive world (electric vehicles of any kind MHEV, HEV, PHEV and BEV, etc), industrial (Energy storage systems) and consumer (i.e. e-bike BMS, home energy storage, etc). TLE9012DQU fulfills four main functions: cell voltage measurement, temperature measurement, cell balancing and isolated communication to main battery controller.

Key features

• Voltage monitoring of up to 12 battery cells connected in series
• Hot plugging support
• Dedicated 16-bit delta-sigma ADC for each cell with the selectable measurement mode
• High-accuracy measurement for SoC and SoH calculation

Additional features

• Integrated stress sensor with digital compensation algorithm and temperature-compensated measurements
• Five temperature measurement channels for external NTCs
• ISO 26262 Safety Element out of Context for safety requirements up to ASIL-D
• Best in class Application Robustness: Infineon technology and device architecture guarantee best performances under noise
• High accuracy voltage measurement: Reliable and precise battery cell monitoring for highly accurate SoC and SoH
• Lowest system cost: Small package (TQFP-48) & high feature integration for a lean external BOM

Applications

• Battery electric vehicle (BEV)
• Mild hybrid electric vehicle (MHEV)
• Hybrid electric vehicle (HEV)
• Plug-in hybrid electric vehicle (PHEV)
• 12V Li-Ion battery systems
• Energy storage system (ESS)
• Home energy storage system
• CAV