TPS25947 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments TPS25947 is a 2.7V to 23V, 5.5A eFuse with true reverse current blocking and input reverse polarity protection, featuring only 28mΩ on-resistance. It provides adjustable current limiting, overvoltage, and thermal protection for robust power path management. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- TPS25947 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- True reverse current blocking with integrated MOSFET eliminates external diode power loss, supporting 2.7V to 23V input range at up to 5.5A
- Ultra-low 28mΩ on-resistance minimizes conduction losses and voltage drop in high-current power distribution systems
- Input reverse polarity protection safeguards downstream circuitry from incorrect connector insertion or battery reversal events
- Adjustable overvoltage, undervoltage, and current-limit thresholds enable flexible system-level protection tuning without external components
Applications
The TPS25947 is designed for server and datacenter power distribution boards where hot-swap protection, reverse current blocking, and accurate current limiting are critical for system reliability. It is widely used in industrial 24V power rails, robotics power management, and telecom equipment to protect sensitive loads from voltage transients and short-circuit faults. The device also suits automotive auxiliary power supplies requiring input reverse polarity protection and adjustable overcurrent response.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS25947:
Frequently Asked Questions
What is the input voltage and current rating of the TPS25947?
The TPS25947 supports an input voltage range of 2.7V to 23V and a maximum continuous load current of 5.5A. Its 28mΩ on-resistance ensures minimal power dissipation at full load, making it suitable for 5V, 12V, and 24V industrial and datacenter power distribution applications.
What protection features does the TPS25947 provide?
The TPS25947 integrates true reverse current blocking, input reverse polarity protection, adjustable overcurrent limiting, overvoltage protection, undervoltage lockout, and thermal shutdown. These comprehensive protection features eliminate the need for multiple discrete protection components, simplifying system design and reducing BOM cost.
How does the TPS25947 differ from a traditional eFuse with a blocking diode?
Unlike traditional solutions using a Schottky diode for reverse current blocking, the TPS25947 uses an internal MOSFET for true bidirectional current blocking. This reduces forward voltage drop from typically 300-500mV to near zero, significantly improving efficiency in 3.3V, 5V, and 12V power paths at 5.5A load currents.
Can the current limit threshold of the TPS25947 be adjusted?
Yes, the TPS25947 allows the overcurrent limit threshold to be set externally via a single resistor connected to the ILIM pin. This flexibility lets designers configure protection thresholds from as low as a few hundred milliamps up to the 5.5A maximum rating, adapting the device to diverse load profiles and cable current ratings.
What are typical applications for the TPS25947?
The TPS25947 is used in server hot-swap power controllers, industrial 24V power distribution modules, robotic power management boards, and telecom line cards. Its reverse polarity protection also makes it valuable in battery-powered portable equipment and automotive auxiliary supplies where incorrect insertion is a real-world risk.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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