TPS2480/81 function circuit and application circuit

The following is the circuit diagram of [TPS2480/81 Function Circuit and Application Circuit]. The TPS2480/81 is a high-performance hot-swap controller that integrates smart protection features with an I2C current monitor. This device is specifically designed to minimize in-application voltage surges, ensuring reliable protection for both the load and the external FETs during overcurrent or short-circuit events. It controls external N-channel MOSFET switches and provides precise monitoring of voltage, current, and power through an I2C interface using a configurable 12-bit ADC. One of the key advantages of the TPS2480/81 is its ability to independently adjust power and current limits, which helps keep the external MOSFET within its safe operating area (SOA). This makes it ideal for applications where reliability and performance are critical. The device also includes a power-good output that can be used for sequencing and fault indication, allowing for more flexible system design. Additionally, an external timer capacitor can be used to set the fault detection time, helping prevent dangerous shutdowns caused by transient events.
Figure 1: TPS2480/81 Functional Block Diagram
Figure 2: TPS2480/81 Functional Block Diagram (2)

TPS2480/81 Applications:

• Server Systems
• Hard Drive Controllers
• Storage Networks
• Base Station Equipment

Figure 3: TPS2480/81 Low Voltage Application Circuit Diagram
Figure 4: TPS2480/81 High Voltage Application Circuit Diagram (Editor: Circuit Diagram)