LTC4225IGN-1#TRPBF

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Introduction of LTC4225IGN-1#TRPBF

LTC4225IGN-1#TRPBF is a high-performance current limit and temperature-controlled Hot Swap controllers manufactured by Linear Technology. It is the latest addition to the expanding range of Hot Swap Controllers and is the valued go-to device for managing inrush current and over-temperature protection during system power-ups and brownouts.

Features

• Sense voltage inputs up to 30V
• On-chip protection circuits
• Low-noise current measurement architecture
• Integrated shunt and control loop
• Programmable auto recovery
• Integrated power-on-reset circuit
• Integrated VSENSE, GND and SHDN node
• Operating temperature range: –40°C to +125°C

Applications

The LTC4225IGN-1#TRPBF HotSwap Controller meets the needs of a wide range of application segments, including:

• Computing and networking equipment
• Computer and telecom system power supplies
• Server and storage systems
• Systems engineering and industrial control systems
• Portable device power management
• Automotive systems
• Medical instrumentation and safety systems

Working Principle of LTC4225IGN-1#TRPBF

The LTC4225IGN-1#TRPBF is a Hot Swap Controller that provides current limiting, inrush control and over temperature protection. The Hot Swap Controller is an integrated circuit which is used to limit the inrush current during system startup. It works by continuously monitoring the input voltage, current, and temperature. During system power-up, the device senses the voltage and current at the load, and adjusts its internal trip level to the current of the power source. Depending on the temperature, the device is able to trip the load off in order to protect it from too high current.

In addition to current limiting and over temperature protection, the device provides an integrated power-on reset circuit, VSENSE, and SHDN nodes. The device also features an auto-shutdown feature that turns itself off at the end of an over-temperature or over-current event. This ensures that the system remains protected in the event of a catastrophic failure. Furthermore, the device features programmable auto recovery, which begins the power-on reset cycle when the over-temperature or over-current event has passed.

Conclusion

The LTC4225IGN-1#TRPBF Hot Swap Controller is an advanced Hot Stamp solution providing exceptional current and temperature protection in a wide array of applications, notably computer and networking equipment, telecom system power supplies, servers and storage systems, industrial control systems, and automotive systems. Its common sense voltage inputs, integrated power-on reset circuit, VSENSE, and SHDN nodes make it an attractive choice for managing inrush currents and over-temperature protection during system power-ups and brownouts.

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