LTC4000EGN#PBF

Battery Chargers Overview

The LTC4000EGN#PBF is a high-voltage, high-performance controller designed to convert externally compensated DC/DC power supplies into full-featured battery chargers. It supports multiple battery chemistries including lithium-ion, lithium polymer, lead-acid, and nickel-based types. The device features accurate programmable float voltage with ±0.25% precision, selectable timer or current termination modes, and automatic recharge capabilities. It includes temperature-qualified charging via NTC thermistor input, C/10 trickle charge for deeply discharged cells, and bad battery detection. The controller offers precision current sensing suitable for high-current applications and provides status indicator outputs.

Battery Chargers Feature Summary

• Converts standard DC/DC converters into complete battery charging systems
• Supports multi-chemistry battery types including Li-ion and Lead Acid
• Provides precise voltage regulation and configurable termination methods

Battery Chargers Applications

• Portable electronic device battery charging
• Industrial equipment power management
• Uninterruptible power supply (UPS) systems

Battery Chargers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance against RoHS standards before procurement. Confirm package type SSOP-16 matches PCB footprint requirements. Check current lifecycle status as discontinued parts may require alternative sourcing strategies. Ensure external component selection aligns with the controller's compensation requirements.

Battery Chargers Selection Notes

Select this controller when designing a charger around an existing DC/DC converter topology. It is suitable for applications requiring multi-chemistry support and precise voltage control. Consider external MOSFET ratings and inductor specifications carefully as the controller manages timing and regulation but relies on external power stages. Evaluate thermal management needs based on the target output current.

Battery Chargers Part Context

The LTC4000 belongs to Analog Devices' battery management portfolio, specifically targeting high-voltage charging applications. It serves as a dedicated controller that simplifies design by integrating complex charging algorithms and protection features. This component allows engineers to leverage robust DC/DC converters while adding intelligent battery management capabilities without developing custom logic.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available.