Overview
The TPS25982, specifically the TPS259827LNRGET model, is a highly integrated smart eFuse from Texas Instruments. This device is designed to provide comprehensive circuit protection and power management in a compact 4-mm × 4-mm QFN package. It operates over a wide input voltage range of 2.7 V to 24 V, with an absolute maximum rating of 30 V. The TPS25982 is ideal for applications requiring robust defense against overloads, short-circuits, voltage surges, and excessive inrush current.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 24 | V |
| Absolute Maximum Input Voltage | 30 | V |
| On-State Resistance (RON) | 2.7 mΩ | mΩ |
| Adjustable Current Limit Threshold | 2 A to 15 A | A |
| Current Limit Accuracy | ± 8% (typical for ILIM > 5 A) | % |
| Overvoltage Protection Thresholds | 3.7 V, 7.6 V, 16.9 V, No OVLO | V |
| Short Circuit Response Time | < 400 ns | ns |
| Current Monitor Gain | 238.6 to 253.4 µA/A | µA/A |
| Junction Temperature Range | -40°C to 125°C | °C |
Key Features
- Wide input voltage range: 2.7 V to 24 V with a 30-V absolute maximum.
- Low On-Resistance: RON = 2.7 mΩ typical.
- Adjustable current limit threshold: Range of 2 A to 15 A with ± 8% accuracy (typical for ILIM > 5 A).
- Circuit breaker and current limiter options.
- Adjustable over-current blanking timer to handle load transients without tripping.
- Accurate current monitor output: ± 1.5% (typical at 25 °C for IOUT > 3 A).
- User-configurable fault response: Latch-off or auto-retry with adjustable number of retries and retry delay.
- Robust short-circuit protection with fast-trip response time < 400 ns typical.
- Adjustable output slew rate (dVdt) control.
- Adjustable undervoltage lockout and overvoltage lockout options.
- Integrated overtemperature protection.
- Power good indication.
- Adjustable load detect and handshake timer.
Applications
- Hot-Swap and hot-plug applications.
- Server standby rail, PCIe riser, add-on card, and fan module protection.
- Routers and switches optical module protection.
- Industrial PC and digital TV applications.
Q & A
- What is the input voltage range of the TPS25982?
The input voltage range is from 2.7 V to 24 V, with an absolute maximum rating of 30 V.
- What is the typical on-state resistance (RON) of the TPS25982?
The typical on-state resistance (RON) is 2.7 mΩ.
- Can the current limit threshold be adjusted on the TPS25982?
- What types of fault responses are available on the TPS25982?
The device can be configured for latch-off or auto-retry with adjustable number of retries and retry delay.
- How does the TPS25982 handle short-circuit conditions?
The device has robust short-circuit protection with a fast-trip response time of less than 400 ns typical.
- Is the output slew rate adjustable on the TPS25982?
- What is the junction temperature range for the TPS25982?
The junction temperature range is from -40°C to 125°C.
- Does the TPS25982 have integrated overtemperature protection?
- What certifications does the TPS25982 hold?
The TPS25982 holds UL 2367 Recognition and IEC 62368 CB Certification.
- What is the package size of the TPS25982?
The device is available in a 4-mm × 4-mm QFN package.
