Overview
The TPS2482PWR, produced by Texas Instruments, is a highly advanced hot swap controller designed for precision monitoring and control in various power management applications. This device is part of the TPS2482 and TPS2483 family, which provides robust and reliable current limiting, power distribution, and load switch functionality. It is particularly suited for applications requiring accurate voltage, current, and power monitoring, such as remote radio heads, cellular antennae, and industrial power distribution systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Input Voltage Range | 9 V to 36 V (up to 40 V absolute max) | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 20-Pin TSSOP (PW) | |
| Current Monitoring Accuracy | ±0.5% (at 25°C < T_J < 85°C) | % |
| Programmable I²C Addresses | 16 | |
| Supply Current (Hotswap Section Enabled) | 450 μA to 1000 μA | μA |
| UVLO Turn-on Threshold | 8.4 V to 8.8 V | V |
| UVLO Turn-off Threshold | 7.2 V to 8.3 V | V |
| Monitor Supply Range | 2.7 V to 5.5 V | V |
Key Features
- Accurate voltage, current, and power monitoring using a 16-bit A/D converter compatible with I²C and SMBus.
- High side gate drive for external N-FET with programmable MOSFET SOA protection.
- Configurable averaging options and programmable fault timer.
- Open-drain power-good output and latched fault off after a hard fault.
- Programmable current limit and fault timeout.
- Timed inrush and fault-current limiting.
- Advanced MOSFET safe operating area (SOA) protection through constant-power foldback and fixed current limit.
Applications
- Industrial power distribution systems.
- Power supplies for communication equipment.
- Automotive power management systems.
- Hot-swap applications.
- Battery management systems.
- High-current DC-DC converters.
- Consumer electronic devices.
- Remote radio heads and cellular antennae.
Q & A
- Q: What is the operating input voltage range of the TPS2482PWR?
A: The TPS2482PWR operates within an input voltage range of 9 V to 36 V, with an absolute maximum of 40 V.
- Q: What is the accuracy of current monitoring in the TPS2482PWR?
A: The TPS2482PWR provides current monitoring accuracy of ±0.5% at temperatures between 25°C and 85°C.
- Q: How many programmable I²C addresses does the TPS2482PWR support?
A: The TPS2482PWR supports 16 programmable I²C addresses.
- Q: What is the package type and pin count of the TPS2482PWR?
A: The TPS2482PWR comes in a 20-pin TSSOP (PW) package.
- Q: What are the key protection features of the TPS2482PWR?
A: The TPS2482PWR includes features such as programmable MOSFET SOA protection, timed inrush and fault-current limiting, and open-drain power-good output. It also latches off after a hard fault.
- Q: Can the TPS2482PWR be used in automotive applications?
A: Yes, the TPS2482PWR is suitable for automotive power management systems due to its wide operating temperature range and robust features.
- Q: How does the thermal shutdown feature work in the TPS2482PWR?
A: The thermal shutdown feature triggers when the junction temperature exceeds safe operating limits, temporarily disabling the output to prevent damage.
- Q: What is the significance of the fault indicator pin in the TPS2482PWR?
A: The fault indicator pin provides a clear indication of fault conditions, allowing for immediate alerts and signaling to other system components.
- Q: Can the TPS2482PWR be easily integrated into existing designs?
A: Yes, the TPS2482PWR can be dropped into existing TPS2480 and TPS2481 sockets with minor software modifications and no PCB changes.
- Q: What are some alternative models to the TPS2482PWR?
A: Alternative models include the TPS2481, TPS2483, and TPS2484, each offering different specifications and features suitable for various applications.
