Overview
The TPS259472ARPWR from Texas Instruments is a highly integrated circuit protection and power management solution, part of the TPS25947xx family of eFuses. This device is designed to provide comprehensive protection against various power-related issues such as overloads, short-circuits, voltage surges, reverse polarity, and excessive inrush current. With its small QFN 2 mm × 2 mm package and 0.45-mm pitch, it offers a compact solution for multiple power management needs.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.7 | - | 23 | V |
| Absolute Maximum Input Voltage | -15 | - | 28 | V |
| Output Current | - | - | 5.5 | A |
| On-Resistance (RON) | - | 28.3 | - | mΩ |
| Quiescent Current (IQ(ON)) | 426 | 610 | - | µA |
| Overtemperature Protection (TSD) | - | - | 154 | °C |
| Fast-Trip Response Time | - | 500 ns | - | - |
Key Features
- Wide operating input voltage range: 2.7 V to 23 V, withstanding negative voltages up to –15 V.
- Integrated back-to-back FETs with low on-resistance (RON = 28.3 mΩ typical) and true reverse current blocking.
- Fast overvoltage protection and adjustable overvoltage lockout (OVLO) with 1.2-µs response time.
- Overcurrent protection with load current monitor output (ILM) and adjustable current limit (0.5 A to 6 A).
- Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM.
- Active high enable input with adjustable undervoltage lockout threshold (UVLO).
- Adjustable output slew rate control (dVdt).
- Overtemperature protection and digital outputs for priority power MUX control (AUXOFF) and fault indication (FLT) or Power Good indication (PG) with adjustable threshold (PGTH).
- UL 2367 recognition and IEC 62368-1 CB certified.
- Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch.
Applications
- Power MUX/ORing applications.
- Adapter input protection and USB PD protection for devices like PCs, notebooks, monitors, and docks.
- Server, PC motherboard, and add-on cards.
- Enterprise storage solutions such as RAID/HBA/SAN/eSSD.
- Patient monitors.
Q & A
- What is the operating input voltage range of the TPS259472ARPWR?
The operating input voltage range is from 2.7 V to 23 V, with an absolute maximum of 28 V and the ability to withstand negative voltages up to –15 V.
- What is the typical on-resistance (RON) of the TPS259472ARPWR?
The typical on-resistance (RON) is 28.3 mΩ).
- What types of overvoltage protection does the TPS259472ARPWR offer?
The device offers fast overvoltage protection and adjustable overvoltage lockout (OVLO) with a 1.2-µs response time).
- How does the TPS259472ARPWR handle overcurrent conditions?
The device features overcurrent protection with a load current monitor output (ILM) and adjustable current limit (0.5 A to 6 A)).
- What is the purpose of the ITIMER pin in the TPS259472ARPWR?
The ITIMER pin is used to set the overcurrent blanking interval, allowing peak currents up to 2 × ILIM).
- Does the TPS259472ARPWR have adjustable undervoltage lockout (UVLO) threshold?
Yes, the device has an active high enable input with an adjustable undervoltage lockout threshold (UVLO)).
- What kind of digital outputs does the TPS259472ARPWR provide?
The device provides digital outputs for priority power MUX control (AUXOFF), fault indication (FLT), or Power Good indication (PG) with an adjustable threshold (PGTH)).
- Is the TPS259472ARPWR certified by any safety standards?
Yes, it is UL 2367 recognized and IEC 62368-1 CB certified).
- What is the package size of the TPS259472ARPWR?
The device comes in a QFN 2 mm × 2 mm package with a 0.45-mm pitch).
- What are some common applications of the TPS259472ARPWR?
Common applications include power MUX/ORing, adapter input protection, USB PD protection, server and PC motherboard protection, enterprise storage solutions, and patient monitors).
