Electronic Fuse Regulator High-Side 60A 26-VQFN-HR (5x4.5)
The TPS259850RQPR is an integrated eFuse power protection device designed for robust power path management in low-voltage DC systems. Manufactured by Texas Instruments, this device provides advanced protection features including overvoltage protection, undervoltage protection, overcurrent limiting, short-circuit protection, reverse current blocking, and thermal shutdown. The device is optimized for applications requiring controlled inrush current, fault isolation, and system reliability in industrial, automotive, telecommunications, and embedded electronic systems.
The TPS259850RQPR supports a wide operating input voltage range and integrates programmable protection thresholds to allow flexible system-level configuration. The device includes an internal MOSFET with low on-resistance for efficient power delivery while minimizing power dissipation. Fast fault response and automatic retry functionality enhance system robustness and reduce the need for external supervisory circuitry.
The device is housed in a compact QFN package suitable for space-constrained PCB designs and supports high-current operation with efficient thermal performance. The integrated protection architecture simplifies power subsystem design while improving reliability and fault tolerance.
Electrical Characteristics
Input operating voltage range supports low-voltage DC power rails commonly used in embedded and industrial systems.
Integrated low-RDS(on) MOSFET minimizes conduction losses and improves overall efficiency.
Programmable current limiting enables configurable overcurrent protection.
Fast short-circuit response protects downstream circuitry during fault events.
Adjustable overvoltage and undervoltage thresholds allow flexible supply monitoring.
Reverse current blocking prevents back-drive conditions and protects power sources.
Thermal shutdown protection disables the device during excessive junction temperature conditions.
Controlled output slew rate limits inrush current during startup and hot-plug events.
Automatic retry and latch-off fault management modes are supported.
Power-good indication output provides system power status monitoring.
Protection Features
Overcurrent protection with programmable current limit threshold.
Short-circuit protection with rapid fault response.
Input overvoltage protection.
Input undervoltage lockout protection.
Reverse current and reverse polarity protection support.
Thermal shutdown with automatic recovery capability.
Fault timer control for transient fault management.
Safe hot-swap and hot-plug operation support.
Mechanical Characteristics
Package type is QFN with compact footprint optimized for high-density PCB layouts.
Surface-mount device compatible with automated assembly processes.
Thermally enhanced package construction improves heat dissipation.
RoHS-compliant and suitable for lead-free manufacturing processes.
Applications
Industrial power distribution systems.
Automotive electronic subsystems.
Telecommunication and networking equipment.
Server and storage platforms.
Hot-swappable modules.
USB Type-C and power delivery systems.
Embedded computing platforms.
FPGA and processor power rail protection.
Battery-powered and portable electronic equipment.
