Overview
The TPS259461ARPWR is an electronic fuse (eFuse) designed and manufactured by Texas Instruments. This device is part of the TPS25946xx family and is characterized by its high-side sensing capability and bidirectional current support. It operates within a supply voltage range of 2.7V to 23V and can handle a maximum output current of 5.5A. The TPS259461ARPWR is packaged in a 10-pin HotRod QFN package, measuring 2mm x 2mm, which enhances thermal performance and reduces system footprint. This eFuse is designed for various applications requiring overcurrent, overvoltage, and short-circuit protection, making it a versatile component for power management in electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package | 10-VFQFN-HR (2x2) | |
| Function | Electronic Fuse | |
| Mounting Type | Surface Mount | |
| Sensing Method | High-Side | |
| Voltage - Input | 2.7V ~ 23V | V |
| Current - Output | 5.5A | A |
| Operating Temperature | -40°C ~ 125°C (TJ) | °C |
| Overvoltage Lockout Response Time | 1.2 µs | µs |
| Current Limit Response Time | 340 µs | µs |
| Scalable Fast-Trip Response Time | 500 ns | ns |
Key Features
- High-Side Sensing: The TPS259461ARPWR features high-side sensing, allowing for precise monitoring and control of the power path.
- Bidirectional Current Support: This eFuse supports bidirectional current flow, making it suitable for a wide range of applications.
- Adjustable Overvoltage and Undervoltage Lockout: The device allows for adjustable overvoltage and undervoltage lockout thresholds using external resistors.
- Power Good and Fault Indicators: It includes power good (PG) and fault (FLT) indicators to monitor the status of the power path.
- Adjustable Output Slew Rate and Inrush Current Control: The output slew rate and inrush current can be adjusted using an external capacitor connected to the dVdt pin.
- Thermal Protection: The device includes overtemperature protection with a thermal shutdown rising threshold of 154°C and a hysteresis of 10°C.
Applications
- Power Supplies: The TPS259461ARPWR is suitable for use in various power supply applications, including DC-DC converters and power distribution units.
- Industrial Automation: It can be used in industrial automation systems to protect against overcurrent and overvoltage conditions.
- Consumer Electronics: This eFuse is applicable in consumer electronics such as laptops, tablets, and smartphones to ensure reliable power delivery.
- Automotive Systems: The device can be integrated into automotive systems for battery management and power protection.
- Medical Devices: It is also suitable for use in medical devices where reliable and safe power delivery is critical.
Q & A
- What is the operating input voltage range of the TPS259461ARPWR?
The operating input voltage range is from 2.7V to 23V.
- What is the maximum output current of the TPS259461ARPWR?
The maximum output current is 5.5A.
- What type of package does the TPS259461ARPWR come in?
The device is packaged in a 10-pin HotRod QFN package, measuring 2mm x 2mm.
- How can the output slew rate and inrush current be adjusted?
The output slew rate and inrush current can be adjusted by adding capacitance from the dVdt pin to ground.
- What are the thermal protection features of the TPS259461ARPWR?
The device includes overtemperature protection with a thermal shutdown rising threshold of 154°C and a hysteresis of 10°C.
- What are the power good and fault indicators in the TPS259461ARPWR?
The device includes power good (PG) and fault (FLT) indicators to monitor the status of the power path).
- How is the overvoltage lockout threshold adjusted?
The overvoltage lockout threshold can be adjusted using a resistor divider on the OVLO pin from the supply to GND).
- What is the response time for overvoltage lockout?
The overvoltage lockout response time is 1.2 µs).
- What is the scalable fast-trip response time?
The scalable fast-trip response time is 500 ns).
- Does the TPS259461ARPWR support auto-retry after a fault?
Yes, the TPS259461ARPWR supports auto-retry after a fault).
