LT4321HUF#PBF

OR Controllers, Ideal Diodes Overview

The LT4321HUF#PBF is a PoE Ideal Diode Bridge Controller manufactured by Analog Devices Inc. It operates within an input voltage range of 20 V to 80 V and supports output voltages from 7.7 V to 11 V. The device functions in SMD/SMT installations using a QFN-16 package. It draws a working power current of 500 uA and maintains operation across temperatures from -40 C to +85 C.

OR Controllers, Ideal Diodes Feature Summary

• Serves as a controller for ideal diode bridges in Power over Ethernet applications
• Supports high voltage inputs up to 80 V for robust power management
• Designed for professional power management (PMIC) integration

OR Controllers, Ideal Diodes Applications

• PoE Powered Device (PD) implementations
• Ideal diode bridge control circuits
• IEEE 802.3bt Type 3 and Type 4 PD designs

OR Controllers, Ideal Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Check current supply availability as the part may be subject to limited stock or factory special orders. Ensure the specific suffix matches project requirements before ordering.

OR Controllers, Ideal Diodes Selection Notes

Select this controller for applications requiring efficient power path management in PoE systems. Consider the QFN-16 package for space-constrained PCB layouts. Verify that the 20 V to 80 V input range aligns with the system's power source specifications. Evaluate thermal performance within the specified operating temperature range.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LT4321 series, designed for Power over Ethernet applications. It complements other PoE controllers like the LT4276 and LT4295. The device focuses on ideal diode functionality rather than full PD interface control, often used alongside dedicated PD controllers.

OR Controllers, Ideal Diodes Replacement Considerations

LT4321IUF#PBF serves as a verified substitute within the same series.