LTC4236IUFD-2#PBF

Hot Swap Controllers Overview

The LTC4236IUFD-2#PBF is a hot swap voltage controller manufactured by Analog Devices Inc. It integrates two ideal diode-OR controllers and one hot swap controller with current monitoring in a single QFN-28 package. The device operates within an input voltage range of 2.9 V to 18 V and draws a typical operating supply current of 2.7 mA. It supports adjustable current limiting and functions reliably across a temperature range of -40°C to +85°C.

Hot Swap Controllers Feature Summary

• Integrates dual ideal diode-OR controllers for redundant power rail management
• Includes a single hot swap controller with integrated load current monitoring capabilities
• Features adjustable current limiting for precise protection during insertion events

Hot Swap Controllers Applications

• Redundant power supply circuits requiring individual ideal diodes per rail
• Systems connecting multiple power outputs to a common load via a single hot swap circuit
• Applications requiring precise load current monitoring through scaled sense resistor signals

Hot Swap Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the IUFD designation corresponds to the industrial temperature grade (-40°C to +85°C) and QFN-28 package type. Cross-reference the manufacturer datasheet to ensure compatibility with system voltage requirements between 2.9 V and 18 V before integration.

Hot Swap Controllers Selection Notes

Select this component when designing redundant power architectures that require both OR-ing functionality and controlled insertion protection. The integrated current monitor simplifies design by providing a scaled output signal proportional to the load current. Ensure the application utilizes N-channel MOSFETs compatible with the controller's gate drive requirements and that the thermal performance of the QFN-28 package suits the enclosure constraints.

Hot Swap Controllers Part Context

This part belongs to the LTC4236 series of hot swap voltage controllers from Analog Devices. It is categorized under PMIC - Power Management ICs. The device is designed to manage safe board insertion and removal from live backplanes while providing redundancy through ideal diode logic, distinguishing it from single-channel hot swap controllers or pure OR-ing solutions.

Hot Swap Controllers FAQ

How does the LTC4236IUFD-2#PBF handle load current monitoring?

The controller provides a signal that is 100 times the sense resistor voltage, enabling accurate monitoring of the load current connected to the hot swap circuit.

What is the primary function of the dual channels in this device?

The two channels function as ideal diode-OR controllers, allowing each power rail to have an individual ideal diode while sharing a common load connection managed by the hot swap controller.