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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 50A_RMS 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
- P_IN/ E_IN/ V_IN/ V_OUT/ I_IN/ 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 (I_OCP) 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 (I_LIM)

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

Texas Instruments TPS25990 60A eFuse with PMBus® Digital Telemetry

Features

Applications

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