TPS25990ARQPR

Current Regulation/Management Overview

The TPS25990ARQPR is a high-current electronic fuse and hot-swap controller from Texas Instruments, designed for robust power distribution. It operates within an input voltage range of 2.9 V to 16 V and features an integrated low on-resistance FET with a typical value of 0.79 mΩ. The device supports a rated RMS current of 50 A and peak currents up to 60 A. It includes a PMBus interface for digital telemetry, configuration, and control. Key electrical parameters include a programmable overcurrent threshold ranging from 7 A to 50 A with ±5% accuracy, a fast short-circuit response time of 280 ns, and precise analog load current monitoring with ±2% accuracy.

Current Regulation/Management Feature Summary

• Integrates a low on-resistance FET for efficient power handling and minimal conduction losses.
• Features a PMBus interface enabling real-time telemetry, remote configuration, and system debugging.
• Supports parallel configurations with active load sharing to scale current capacity beyond single-device limits.
• Provides comprehensive protection including programmable overcurrent, short-circuit, and thermal safeguards.

Current Regulation/Management Applications

• High-current bus protection in industrial systems
• Hot-swap controllers for server backplanes
• Power distribution units requiring digital monitoring
• Parallel power stage synchronization

Current Regulation/Management Procurement Notes

Verify the specific package marking and date code against the official datasheet to ensure authenticity. Confirm that the PMBus communication protocol aligns with your host controller's capabilities. Check for any required external EEPROM for non-volatile fault logging if utilizing black box features. Ensure thermal management meets the SOA requirements during fault conditions.

Current Regulation/Management Selection Notes

Select this component when high current ratings exceeding standard MOSFET switches are required alongside digital control. The integrated PMBus allows for advanced system diagnostics not available in basic e-fuses. Consider the parallel operation capability if system redundancy or higher current throughput is necessary. Evaluate the need for precise current monitoring accuracy for closed-loop control applications.

Current Regulation/Management Part Context

This part belongs to the TPS25990 family of electronic fuses. It is distinct from lower-current variants by its ability to handle up to 60 A peak current. The ARQPR suffix indicates a specific tape and reel packaging option suitable for automated surface-mount assembly processes.

Current Regulation/Management Replacement Considerations

TPS25990EVM is an evaluation module for this device, not a direct replacement. No other public substitute part numbers are confirmed in the provided documentation.