The TPS25942ARVCT is a compact, feature-rich eFuse Power MUX power management chip designed for power path management applications. With an operating voltage range of 2.7V to 18V and maximum current handling of 5A, this device provides comprehensive protection and control for DC power systems.

• 2.7V to 18V operating voltage range (20V maximum)
• 42-mΩ typical on-resistance (Ron)
• 0.6A to 5.3A adjustable current limit (±8% accuracy)
• IMON current indicator output (±8% accuracy)
• 200-μA typical operating current
• 15-μA typical disabled current
• ±2% overvoltage and undervoltage thresholds
• Reverse current blocking capability
• 1-μs reverse voltage shutoff response
• Programmable dV/dt control
• Power Good and Fault outputs
• Two overcurrent fault response options
• -40℃ to +125℃ junction temperature range
• UL 2367 recognized (File No. 169910)
• UL60950 safe during single point failure

• Power Path Management Systems
• Redundant Power Supply Systems
• PCIe Cards, NICs and RAID Systems
• USB Power Banks and Power MUXes
• SSDs and HDDs
• Tablets and Notebooks
• Adapter Power Devices
• PLCs, Solid State Relays and Fan Control

The TPS25942 and TPS25944 eFuse Power MUX devices provide comprehensive power management with a full suite of protection functions. The wide operating range supports control of popular DC bus voltages. Integrated back-to-back FETs enable bidirectional current control, making these devices ideal for power multiplexing and systems with multiple power sources.

Load, source, and device protection are provided through programmable features including undervoltage, overvoltage, overcurrent, dV/dt ramp rate, power good, and in-rush current protection. For system status monitoring and downstream load control, the devices provide PGOOD, FLT and precise current monitor outputs.

The devices monitor VIN and VOUT to provide true reverse blocking when VIN is less than VOUT by 10mV. Configuration options allow assignment of Main/Auxiliary supply priority using FLT and DMODE pins.