LTC4292IUJ#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Controller (PSE)
Number of Channels:	8
Power - Max:	71.3W
Internal Switch(s):	No
Auxiliary Sense:	No
Standards:	802.3at (PoE+), 802.3af (PoE), 802.3bt
Voltage - Supply:	80V
Current - Supply:	--
Operating Temperature:	-40°C ~ 85°C
Package / Case:	40-WFQFN Exposed Pad
Supplier Device Package:	40-QFN (6x6)

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Introduction

The LTC4292IUJ#TRPBF is a power management integrated circuit (PMIC) from Linear Technology. It is classified under the PMIC - Power Over Ethernet (PoE) Controllers category due to its capability to take input power from a Power-over-Ethernet enabled device and provide the required voltage, current and frequency for the downstream equipment.

Application Field

The primary application of the LTC4292IUJ#TRPBF is in the field of Power over Ethernet (PoE) enabled devices. The integrated circuit has been designed to account for the high current requirements of Ethernet devices, as it can provide up to 600 milliamps of continuous current. The high current output also makes the LTC4292IUJ#TRPBF suitable for a range of applications where a continuous and high current output is necessary.Apart from its use in PoE-enabled devices, the IC is also suitable for a number of other applications, such as providing power in distributed system architectures consisting of multiple components. The LTC4292IUJ#TRPBF can also be used to convert voltage from a Power-over-Ethernet PoE enabled device, to a different output voltage which is required downstream. For instance, the IC is capable of converting PoE input voltages of 15.4V to 3.3V or 12V, or any other voltage that is desired by the user.

Working Principle

The LTC4292IUJ#TRPBF works on the principle of direct current (DC) to direct current (DC) conversion. The internal components of the IC include a step-down regulator which converts the PoE input voltage to the output voltage that is required. This regulator is used to ensure that the voltage output is accurate and stable. The output voltage is then regulated by a feedback circuit, which is capable of detecting any sudden changes in output load, and adjusting the output accordingly. This ensures that the input power is always sufficient to meet the load requirements.The IC also has a number of other features which ensure that the output is always safe and reliable. These features include an over-voltage protection circuit and a current limiting circuit. The over-voltage protection circuit protects against sudden spikes in the input voltage, while the current limiting circuit limits the output current, preventing it from becoming too high.

Conclusion

The LTC4292IUJ#TRPBF is an excellent power management integrated circuit that is well suited for applications in the Power over Ethernet (PoE) enabled devices. The IC is capable of providing a high current output, and can also convert the PoE input voltage to different output voltages. The IC also has a number of safety features which ensure that the output is safe and reliable.

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