TPS25990ARQPR - 16V 60A Stackable eFuse | Texas Instruments
MPN: TPS25990ARQPR ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TPS25990ARQPR Overview
An electronic fuse, or eFuse, is a semiconductor circuit protector placed between a power source and a load. Unlike a fuse that permanently opens during an overload, an eFuse can detect current or voltage faults, interrupt current rapidly, report operating data, and recover under software control. In the power-management hierarchy, the TPS25990 belongs to the eFuse, current-regulation, and circuit-protection IC class.
The verified source data identifies a 0.79 mΩ typical integrated on-resistance, 50 A RMS continuous rating, and 60 A peak rating. Its 2.9 V to 16 V operating range suits lower-voltage distribution rails, while the PMBus digital telemetry controller supports real-time monitoring, control, and configuration. Protection functions address overloads, short circuits, and excessive inrush current with minimal external circuitry.
Technically, the device combines a low-resistance power FET with a high-current protection and telemetry architecture in one compact package. The reported 20 V absolute maximum input rating provides design headroom above the normal 16 V operating limit, and the output path withstands reverse voltage down to -1 V. These specifications make rail-to-rail protection more practical than discrete fuse-and-discharge arrangements.
Typical uses include 12 V industrial equipment, rack and server power distribution, high-current storage systems, telecom boards, test equipment, and protected DC input ports. In a 12 V design, designers should preserve copper width and thermal layout capable of handling sustained current while also accounting for transient heating, fault response, telemetry wiring, and configured current thresholds.
A critical design step is checking PCB current capacity and thermal performance against the required RMS load rather than relying only on the device rating. The VQFN-HR thermal pad and surrounding copper should be laid out according to the manufacturer datasheet, while input and output loops should be kept compact to preserve the advantage of the integrated 0.79 mΩ FET.
This page consolidates verified manufacturer and distributor information, separates confirmed specifications from unavailable data, and avoids presenting unsupported pin, price, or cross-brand replacement claims. It also provides practical procurement and design guidance for engineers evaluating this high-current protection device.
Drop-in alternatives for TPS25990ARQPR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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PTPS25990ARQPR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS25990ARQPR Maximum Ratings & Electrical Characteristics
| Product Type | Stackable electronic fuse (eFuse) |
| Input Operating Voltage Range | 2.9 V to 16 V |
| Absolute Maximum Input Voltage | 20 V |
| Output Reverse Voltage Withstand | -1 V |
| Typical Integrated On-Resistance | 0.79 mΩ |
| Rated RMS Current | 50 A |
| Peak Current | 60 A |
| Digital Telemetry | Supported |
| Digital Interface | PMBus |
| Circuit Protection | Overload, short circuit, and excessive inrush current protection |
| Device Configuration | Stackable |
| Operating Temperature Range | -40 °C to +125 °C |
| Package | 26-pin VQFN-HR, 5 mm × 4.5 mm |
| Mounting Type | Surface mount |
| RoHS Status | Compliant |
| Evaluation Hardware | TPS25990EVM |
| Datasheet Revision | Revision B |
TPS25990ARQPR 26-pin vqfn-hr, 5 mm × 4.5 mm Pin Configuration Guide
Pin configuration for TPS25990ARQPR (26-pin vqfn-hr, 5 mm × 4.5 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS25990ARQPR.
Refer to the datasheet for full pin configuration.
Safe Operating Area
Typical Applications
TPS25990ARQPR is suitable for 6 applications: 12 V Industrial Equipment Input Protection, Rack and Server Power Distribution, High-Current Storage Power Protection, Telecom and Network Equipment Rails, High-Power Test and Measurement Supply, Protected DC Connector and Hot-Swap Input.
12 V Industrial Equipment Input Protection
The TPS25990ARQPR fits a 12 V industrial input because its verified 2.9 V to 16 V operating range covers a nominal 12 V rail while protecting against overloads, short circuits, and excessive inrush. Place the eFuse between the field connector and protected load, then route its PMBus telemetry to the system controller for real-time status, configuration, and fault response. Its 0.79 mΩ typical on-resistance limits conduction loss, while the 50 A RMS and 60 A peak ratings support demanding machinery. The PCB still requires connector surge protection, adequate input capacitance, and copper paths rated for the actual continuous load and thermal environment.
Recommended
Rack and Server Power Distribution
TPS25990ARQPR is suitable for protected 12 V rack power distribution where fault isolation and software telemetry are valuable. Its PMBus interface allows a host controller to monitor current, voltage, operating state, and configured protection behavior rather than waiting for a passive fuse to fail permanently. The 0.79 mΩ typical FET resistance reduces bus voltage drop, and the 50 A RMS rating can suit multi-connector distribution stages. Engineers must size connectors, busbars or copper, and thermal paths for sustained load; verify fault-current energy and all 26 exposed-package land and thermal-pad requirements against the official datasheet before layout release.
Recommended
High-Current Storage Power Protection
The TPS25990ARQPR can protect a high-current storage subsystem by isolating a storage rail during overload, short circuit, or abnormal startup current. Its operating range includes common 12 V server and storage voltages, and the integrated 0.79 mΩ FET avoids a separate high-current switch in many architectures. PMBus telemetry gives a storage controller visibility into transient and operating conditions, enabling controlled shutdown and service diagnostics. Because sustained current produces heat in both the device and PCB copper, use generous copper around the 26-VQFN-HR package, validate the thermal pad connection, and confirm that connector and board interfaces remain the weakest links under fault conditions.
Recommended
Telecom and Network Equipment Rails
TPS25990ARQPR suits telecom or network-equipment input rails requiring reversible fault handling and centralized monitoring. The device supports operation from 2.9 V through 16 V, covers high-current conversion or distribution stages, and reports through PMBus so system management software can identify an overload or short circuit. That observability can distinguish a downstream branch fault from a system-wide input problem and support controlled recovery. The design must account for conducted EMI, inrush behavior, PMBus pull-up and routing requirements, and the thermal capacity of the PCB. Its 20 V absolute maximum input rating is not a recommended continuous operating point.
Recommended
High-Power Test and Measurement Supply
The TPS25990ARQPR can protect programmable DC rails and high-current test loads while preserving measurement-system control. Its 50 A RMS and 60 A peak capability suit supplies requiring rapid overcurrent intervention, while the 0.79 mΩ typical resistance minimizes supply-path loss. Standalone protection behavior and PMBus control should be evaluated with the intended load and fault waveforms rather than only nominal current. Layout must provide low-inductance power loops, robust copper connections, and careful return paths so the IC does not become the limiting thermal element. The TPS25990EVM provides a practical platform for confirming threshold, timing, telemetry, and recovery behavior before production integration.
Recommended
Protected DC Connector and Hot-Swap Input
TPS25990ARQPR is appropriate for a protected high-current DC connector because it combines current limiting or fault interruption, inrush control, and digital monitoring in one device. The output withstand of -1 V supports a controlled reverse-discharge scenario, while the 2.9 V to 16 V range covers common low-voltage external inputs. Place protection devices and input capacitance ahead of the load as directed by the reference design, and define safe sequencing through the control interface. The 60 A peak rating is not permission to remove upstream surge protection; connector ratings, cable fault energy, fuse coordination, and system isolation must be validated independently for each connected load.
Recommended
Recommended Products Summary
Engineering reference data for TPS25990ARQPR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PTPS25990ARQPR |
|---|---|---|
| Package | 26-VQFN-HR (5 mm × 4.5 mm) | 26-VQFN-HR (5 mm × 4.5 mm), pre-RTM identifier |
| Brand | Texas Instruments | Texas Instruments |
| Input Operating Voltage Range | 2.9 V to 16 V | 2.9 V to 16 V |
| Absolute Maximum Input Voltage | 20 V | 20 V |
| Output Reverse Voltage Withstand | -1 V | -1 V |
| Typical On-Resistance | 0.79 mΩ | 0.79 mΩ |
| Rated RMS Current | 50 A | 50 A |
| Peak Current | 60 A | 60 A |
| Digital Telemetry Interface | PMBus | PMBus |
| Procurement Status | Valid orderable MPN | Pre-RTM identifier; not valid after RTM |
Key Differentiators
- Software-visible high-current protection (vs PTPS25990ARQPR)
- High-current conduction performance (vs PTPS25990ARQPR)
- Integrated telemetry and protection (vs PTPS25990ARQPR)
Design Notes
Estimated: using the verified 0.79 mΩ typical on-resistance at 50 A gives approximately 1.975 W of conduction loss in the integrated FET, calculated as I²R = 50² × 0.00079. Actual dissipation also includes control and switching effects and can vary because 0.79 mΩ is a typical value. Treat the PCB copper and VQFN thermal pad as part of the heat path, and validate junction temperature against the verified -40 °C to +125 °C device range.
Use the shortest practical copper paths between the input, output, and external power components while preserving the package land pattern and exposed thermal pad from the official datasheet. The verified package is 26-VQFN-HR, 5 mm × 4.5 mm. Avoid interrupting thermal copper with unnecessary keepouts, follow manufacturer solder-mask and paste guidance, and ensure plated through-holes or copper features carry current without creating current-crowding hotspots.
Do not operate the normal input above 16 V merely because the absolute maximum is 20 V, and do not use PTPS25990ARQPR as a purchasing drop-in code; Texas Instruments identifies it as a pre-RTM identifier. Confirm the RQPR tape-and-reel orderable code, all exposed-pad connections, power polarity, PMBus address and pull-ups, fault thresholds, and recovery behavior directly from the official datasheet before fabrication.
The 50 A RMS rating applies to the device, not automatically to the complete board. Connector contacts, PCB tracks, solder joints, vias, and thermal performance must also support the designed load and fault transients. A practical review should separate continuous RMS heating from peak-current handling and include protection coordination upstream so a short circuit cannot exceed the energy limits of the connector, PCB, or external network.
Compliance Information
The verified JLCPCB result labels TPS25990ARQPR RoHS compliant. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was supplied, so those fields remain unknown.
