MAX6785TCB+

Overview

The MAX6785TCB+ is a battery management integrated circuit designed for monitoring multiple battery cells. It supports three-cell configurations and accommodates multi-chemistry batteries, including lithium-ion, nickel-based, and lead-acid types. The device operates within a temperature range of -40°C to +85°C and utilizes a 12-TQFN (3x3 mm) surface-mount package with an exposed pad. Key electrical specifications include a maximum operating input voltage compatible with standard battery packs and a quiescent current optimized for low-power applications. The component integrates fault protection features such as reverse battery protection to safeguard the monitored system.

Feature Summary

• Supports monitoring of up to three series-connected battery cells
• Compatible with various battery chemistries including Li-ion and NiMH
• Integrates reverse battery protection functionality
• Delivers accurate cell voltage measurement for state-of-health assessment

Applications

• Portable electronic devices requiring multi-cell battery monitoring
• Medical equipment utilizing rechargeable battery systems
• Industrial control systems with backup power sources
• Consumer electronics employing lithium-ion battery packs

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and REACH registration details prior to integration. Check for alternative packaging options if reel quantities are required instead of tubes. Ensure supply chain stability as availability may be limited in secondary markets.

Selection Notes

Select this component when monitoring three-cell battery architectures is required. Consider the 12-TQFN package size for space-constrained designs. Evaluate thermal performance within the specified -40°C to +85°C operational range. Compare against single or dual-cell monitors if fewer channels are sufficient for the application.

Part Context

Part of the MAX678x family of battery monitors from Maxim Integrated, now part of Analog Devices. This series provides high-accuracy voltage monitoring solutions for portable and industrial applications. The MAX6785 specifically targets three-cell configurations, complementing other variants like the MAX6782 and MAX6783 which support different cell counts.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. The component is listed as obsolete. Engineers should evaluate pin-compatible alternatives or redesign circuits using newer generation battery monitors from the manufacturer's portfolio.