LTC6803HG-4#3ZZPBF

Overview

The LTC6803HG-4#3ZZPBF is a multicell battery stack monitor from Analog Devices, designed for lithium-ion battery management. It operates within a supply voltage range of 4 V to 55 V and features an internal 5 V regulator delivering up to 8 mA output current. The device supports monitoring of multiple cells in series stacks and includes GPIO pins for auxiliary functions. It is housed in a 44-lead SSOP package with surface mount installation. The component ensures reliable operation across an extended industrial temperature range from -40°C to +125°C, maintaining low quiescent current during active modes.

Feature Summary

• Monitors high-voltage battery stacks through direct cell voltage measurement capabilities
• Integrates an internal voltage regulator to provide stable power for peripheral components
• Supports passive balancing via selectable resistive loading on individual cells
• Enables daisy-chain communication for connecting multiple monitoring devices

Applications

• Lithium-ion battery stack monitoring in electric vehicles
• Energy storage system cell voltage supervision
• Industrial battery pack management systems
• Uninterruptible power supply (UPS) battery arrays

Procurement Notes

Verify the specific suffix #3ZZPBF against official Analog Devices documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with existing PCB footprints and communication interfaces before integration. Cross-reference the manufacturer datasheet for any recent product change notifications or pinout updates that may affect design continuity.

Selection Notes

Select this variant when extended industrial temperature performance up to +125°C is required for harsh environments. Compare the 8 mA regulator output capability against system power demands to ensure sufficient headroom for external circuitry. Evaluate the SSOP-44 package constraints regarding thermal dissipation and board space availability relative to alternative packages in the LTC6803 family.

Part Context

This component belongs to the LTC6803 family of multicell battery monitors, which are optimized for high-series-cell applications. The HG suffix typically denotes the extended industrial temperature grade, distinguishing it from commercial variants. It serves as a core sensing element in battery management architectures, providing accurate voltage data for state-of-charge estimation and cell balancing control.

Replacement Considerations

Direct substitutes include other LTC6803 variants such as LTC6803HG-3#3ZZPBF or LTC6803IG-4#3ZZPBF, depending on required temperature ranges and regulatory compliance. Verify pin-to-pin compatibility and electrical specifications before substitution to maintain system integrity.