LTC7871HLWE#PBF

DC DC Switching Controllers Overview

The LTC7871HLWE#PBF is a six-phase synchronous bidirectional buck-boost controller designed for high-power energy conversion. It supports VHIGH voltages up to 100V and VLOW voltages up to 60V, enabling efficient power management between dual bus architectures. The device features Analog Devices' proprietary advanced current mode control with ±1% voltage regulation accuracy under over-temperature conditions. It includes precise programmable inductor current monitoring, SPI serial interface for status reporting, and lockable switching frequencies ranging from 60kHz to 750kHz. The controller operates within a temperature range of -40°C to +150°C TJ.

DC DC Switching Controllers Feature Summary

• Supports bidirectional energy flow between high-voltage and low-voltage buses via external MOSFETs
• Enables multi-phase operation with up to 24 phases using multiple controllers
• Provides programmable inductor current monitoring and dynamic regulation capabilities
• Features SPI-compatible serial interface for operational status and fault reporting

DC DC Switching Controllers Applications

• Humanoid robot joint servo drive power management
• Automotive 48V/12V dual battery systems
• Backup power supply systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official documentation to confirm thermal grade and package variations. Ensure compatibility with required development kits such as DC2886A for evaluation. Confirm moisture sensitivity levels and storage requirements prior to assembly. Validate that the selected variant meets the specific voltage and phase requirements of the target design.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring bidirectional power transfer between 48V and 12V rails. It is suitable for applications demanding high efficiency through synchronous rectification and precise current sharing across multiple phases. Consider the 64-pin LQFP package for thermal performance and pin count requirements. Evaluate the need for spread spectrum modulation and soft-start features during system integration.

DC DC Switching Controllers Part Context

This part belongs to the LTC7871 PolyPhase family of DC-DC controllers. The family includes variants like LTC7871ELWE, ILWE, and JLWE, which share similar core functionalities but may differ in specific electrical characteristics or packaging options. These controllers are engineered for complex power architectures found in advanced robotics and automotive electronics.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.