LTC6813HLWE-1#3ZZPBF

LTC6813-1 – 18-Cell Battery Stack Monitor with Daisy Chain Interface

LTC6813HLWE-1#3ZZPBF – 18-Cell Battery Stack Monitor IC – Analog Devices
Optimize your battery management systems with the LTC6813HLWE-1#3ZZPBF from Analog Devices. This high-precision 18-cell battery stack monitor features daisy chain connectivity and automotive-grade reliability, enabling accurate voltage monitoring for industrial and automotive applications. PCX ensures genuine Analog Devices components with express shipping and technical support.

Key Features

Cell Monitoring: Supports 1 to 18 series-connected battery cells
Interface: SPI communication with daisy chain capability
Voltage Accuracy: ±1.2mV max error per cell (0°C to 40°C)
Operating Voltage: 0V to 5V per cell input range
Temperature Range: -40°C to 125°C (automotive qualified)
Chemistry Support: Multi-chemistry compatibility (Li-ion, LiFePO₄, etc.)

Technical Specifications
Housed in a compact 64-LQFP-EP (10x10mm) surface-mount package, this battery management IC delivers 16-bit ADC resolution with simultaneous cell voltage and current measurement. The daisy chain interface allows monitoring of hundreds of cells using a single isolated SPI port. Its integrated isoSPI™ technology ensures noise-immune communication across high-voltage battery stacks.

Typical Applications

Electric vehicle (EV) battery management systems
Industrial energy storage solutions
Uninterruptible power supplies (UPS)
Portable medical equipment
Telecom backup power systems

About Analog Devices
Analog Devices Inc. (ADI) is a global leader in high-performance semiconductor solutions, renowned for precision analog and power management technologies. With over 50 years of innovation, ADI consistently delivers mission-critical components meeting stringent automotive, industrial, and medical standards.
ADI’s battery management portfolio sets industry benchmarks for accuracy and reliability. The LTC6813 series exemplifies their commitment to solving complex power challenges with integrated protection features like passive cell balancing and advanced fault diagnostics.

About Battery Stack Monitors
Battery stack monitors are critical for managing multi-cell lithium-ion systems, providing real-time voltage/temperature data to prevent overcharging, deep discharge, and thermal runaway. These ICs enable precise state-of-charge (SoC) calculations and extend battery pack lifespan through active cell balancing.
Advanced monitors like the LTC6813 integrate measurement, communication, and protection functions in a single device. Their daisy-chain architecture simplifies high-voltage system design while meeting ASIL-D safety requirements for automotive applications and UL/IEC standards for industrial equipment.

Packaging & Availability
Available in tray packaging for automated assembly. Contact PCX for reel quantity options and custom kitting solutions.

Frequently Asked Questions
Question: Does this support passive cell balancing?