TPS259540DSGR

Current Regulation/Management Overview

The TPS259540DSGR is a single-channel hot-swap voltage controller and eFuse from Texas Instruments, designed for robust power distribution. It operates within an input voltage range of 2.7 V to 18 V and supports adjustable current limits from 500 mA to 4 A. The device features a low on-resistance of 34 mΩ, minimizing conduction losses. Packaged in an 8-WSON (2x2 mm) surface-mount format, it functions reliably across an extended temperature range of -40°C to +125°C junction temperature. Key integrated protections include power fail detection and precise current limiting.

Current Regulation/Management Feature Summary

• Integrated hot-swap control with soft-start functionality to manage inrush currents during power-up.
• Built-in power fail detection circuitry for monitoring upstream power supply integrity.
• Adjustable current limit capability allowing customization for various load requirements.
• Compact WSON-8 package design suitable for space-constrained PCB layouts.

Current Regulation/Management Applications

• Industrial equipment power distribution modules
• Telecommunications infrastructure board protection
• Automotive electronic control unit power inputs
• Server and storage system backplane power rails

Current Regulation/Management Procurement Notes

Verify the specific suffix 'DSGR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the thermal pad connection aligns with the target PCB copper pour design for adequate heat dissipation. Ensure component handling procedures account for moisture sensitivity level classifications during storage and reflow soldering operations.

Current Regulation/Management Selection Notes

Choose this component when a single-channel solution with high current capacity up to 4 A is required. The 34 mΩ on-resistance makes it suitable for applications prioritizing efficiency over ultra-low standby consumption. Consider alternative TPS2595xx variants if different current thresholds or package footprints are necessary for the specific design constraints.

Current Regulation/Management Part Context

This part belongs to the TPS2595 series of eFuses and hot-swap controllers. It complements other devices like the TPS259535 and TPS259541, offering similar core functionalities with specific parameter variations. The series provides comprehensive protection features for modern power management systems requiring reliable fault isolation.

Current Regulation/Management Replacement Considerations

The TPS259535DSGR serves as a direct functional substitute within the same family, sharing identical pinouts and general specifications. Designers should verify exact current limit settings and tolerance differences between these specific model numbers before swapping components in existing designs.