LT8228EFE#TRPBF

Overview

The LT8228EFE#TRPBF is a 100V bidirectional synchronous buck/boost controller designed for constant-current or constant-voltage regulation. It features an input/output voltage range of 6V to 100V and supports programmable switching frequencies from 80kHz to 600kHz. The device includes independent compensation networks for both boost and buck modes, ensuring stable transient response. It offers ±1.0% feedback voltage accuracy across the full temperature range and provides comprehensive protection against negative supply voltages, reverse current, and short circuits.

Feature Summary

• Bidirectional power flow control with automatic or external direction determination
• Independent compensation networks for optimized boost and buck mode performance
• Robust fault protection including negative voltage tolerance and short-circuit detection
• Masterless redundant parallel operation capability for high-reliability systems

Applications

• 48V/12V dual-battery automotive systems
• Hybrid and electric vehicle power management
• High-power backup and uninterruptible power supplies
• Complex industrial power distribution networks

Procurement Notes

Verify component authenticity through official Analog Devices channels or authorized distributors. Confirm the specific suffix #TRPBF indicates tape and reel packaging. Check current availability status as supply may be limited. Ensure environmental compliance documentation matches project requirements. Validate that the EFE variant meets the required operating temperature range for the intended application environment.

Selection Notes

Select this controller when bidirectional energy transfer between two voltage domains is required. Choose the EFE variant for standard industrial applications requiring -40°C to +125°C operation. Consider the HFE variant if higher thermal endurance up to +150°C is necessary. Evaluate system requirements for switching frequency and compensation complexity before finalizing the design.

Part Context

This component belongs to the LT8228 family of power management ICs from Analog Devices. It is part of a series offering various temperature grades, including the LT8228HFE for high-temperature environments. The device integrates advanced control logic for synchronous rectification, distinguishing it from simpler non-synchronous controllers in the broader PMIC category.

Replacement Considerations

Direct pin-compatible replacements within the same family include the LT8228HFE#TRPBF for extended temperature ranges. Cross-family substitution requires careful evaluation of electrical parameters and pinout compatibility. Verify that alternative controllers support bidirectional operation and similar voltage ratings.