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Texas Instruments TPS25990 60A eFuse with PMBus® Digital Telemetry

Texas Instruments TPS25990 0.79mΩ, 60A eFuse with PMBus® Digital Telemetry is an integrated, high-current circuit protection/power management solution in a small 4.5mm x 5mm package with a 0.6mm pitch. The TPS25990 provides multiple protection modes using few external components and offers robust defense against overloads, short circuits, and excessive inrush current. An integrated PMBus interface allows a host controller to monitor, control, and configure the system in real-time. The Texas Instruments TPS25990 eFuse can be utilized as a standalone eFuse, or connected as a primary controller in a parallel eFuse configuration for higher current support.

Features

  • 2.9V to 16V input operating voltage range
    • 20V absolute maximum at an input
    • Withstands up to –1V at output
  • Integrated low on-resistance FET, 0.79mΩ typical, rated for 50ARMS and 60A peak current
  • Can be used as a standalone eFuse or primary controller in a parallel configuration
    • Supports parallel connection of multiple eFuses for higher current support
    • Active device state synchronization and load sharing during start-up and steady-state
  • PMBus interface for telemetry, control, configuration, and debug
    • PIN / EIN / VIN / VOUT / IIN / temperature / fault monitoring
    • Power cycle with a single command
    • On-chip non-volatile configuration memory
    • Blackbox fault recording in external EEPROM
  • Robust overcurrent protection
    • Programmable overcurrent threshold (IOCP) from 7A to 50A with ±5% accuracy
    • Circuit-breaker response during steady-state with a programmable transient blanking timer (OC_TIMER) to support peak load currents
    • Active current limit during start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response, 280ns
    • Programmable and fixed thresholds
    • Immune to supply line transients, no nuisance tripping
  • Programmable overtemperature protection (OTP), guaranteed FET SOA with 8W√s
  • Integrated FET health monitoring and reporting
  • Precise analog load current monitoring (IMON)
    • <2.1% error
    • >500kHz analog bandwidth
  • Fast overvoltage protection
  • Programmable output slew rate control (dVdt)
  • Programmable insertion delay timer
  • Programmable undervoltage lockout (UVLO)
  • Analog die temperature monitor output (TEMP)
  • Four configurable general-purpose I/O pins
  • 4.5mm x 5mm, 0.6mm pitch QFN package with 29-mil clearance between power and GND pins
  • -40°C to +125°C operating temperature range
  • Lead-free

Applications

  • Server and high-performance computing
  • Network interface cards
  • Graphics and hardware accelerator cards
  • Datacenter switches and routers
  • Input hotswap and hotplug
  • Fan trays

Associated Eval Module

Texas Instruments TPS25990EVM Evaluation Module

Allows reference circuit evaluation of the TPS25990 2.9V to 16V, 60A eFuse.

Learn Moreabout Texas Instruments TPS25990EVM Evaluation Module View Productsrelated to Texas Instruments TPS25990EVM Evaluation Module
Published: 2022-11-15 | Updated: 2023-08-17