LTC4000EGN-1#TRPBF

Battery Chargers Overview

The LTC4000EGN-1#TRPBF 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 qualification via NTC thermistor input, C/10 trickle charging for deeply discharged cells, and bad battery detection. The IC operates with a wide input voltage range and provides status indicator outputs for system monitoring.

Battery Chargers Feature Summary

• Converts standard DC/DC converters into complete battery charging systems
• Supports multi-chemistry batteries including Li-ion, Li-Po, and Lead-Acid
• Integrates precise float voltage regulation and termination logic
• Provides thermal protection and deep discharge recovery mechanisms

Battery Chargers Applications

• Portable electronic device battery charging systems
• Industrial equipment power management modules
• Uninterruptible Power Supply (UPS) battery maintenance circuits
• Medical device battery management units

Battery Chargers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration. Confirm the EGNA package variant matches your PCB footprint requirements. Check current lifecycle status as Analog Devices frequently updates product availability. Ensure compatibility with your external inductor and capacitor selections based on the official datasheet recommendations.

Battery Chargers Selection Notes

Select this component when designing a charger that utilizes an existing external DC/DC converter topology. It is suitable for applications requiring precise voltage regulation and multi-chemistry support. Consider the SSOP-28 package constraints for board space. Evaluate the need for external compensation components to stabilize the control loop.

Battery Chargers Part Context

This part belongs to the LTC4000 series of battery charge controllers from Analog Devices. It is distinct from integrated switcher chargers by relying on external power stages. The series focuses on flexibility for high-current and high-voltage applications where custom power topologies are preferred over fixed internal switches.

Battery Chargers FAQ

Does the LTC4000EGN-1#TRPBF include internal switching MOSFETs?

No, it is a controller that requires external power switches and passive components to form the complete charging circuit.

How does the device handle deeply discharged batteries?

It automatically initiates a C/10 trickle charge mode to safely recover deeply discharged cells before proceeding to normal charging cycles.