LTC4412ES6#TRPBF

OR Controllers, Ideal Diodes Overview

The LTC4412ES6#TRPBF is a low-loss PowerPath controller manufactured by Analog Devices Inc., designed to manage power switching between a battery and an auxiliary source such as a wall adapter. It controls an external P-channel MOSFET to create a near-ideal diode function, enabling efficient OR-ing of multiple power sources. The device operates with a supply voltage range of 2.5V to 28V and features a typical quiescent current of 11µA. When the MOSFET is on, the voltage drop across it is typically 20mV. It is housed in a 6-pin TSOT-23 package and supports commercial temperature ranges.

OR Controllers, Ideal Diodes Feature Summary

• Controls an external P-channel MOSFET to provide near-ideal diode functionality for power path management
• Enables automatic switching between battery and auxiliary power sources with minimal conduction loss
• Supports load sharing or charging of multiple batteries through interconnection of multiple devices
• Includes internal gate drive voltage clamping for MOSFET protection and manual control input capability

OR Controllers, Ideal Diodes Applications

• Automatic power switching between lithium-ion batteries and wall adapters
• Load sharing among multiple battery cells
• Charging multiple batteries from a single charger source
• Handheld devices requiring extended battery life and reduced self-heating

OR Controllers, Ideal Diodes Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm package marking matches TSOT-23-6 specifications. Check datasheet revision status for electrical parameter updates. Ensure storage conditions comply with moisture sensitivity levels. Validate supplier authorization status prior to purchase.

OR Controllers, Ideal Diodes Selection Notes

Select this controller when designing systems requiring seamless transition between primary and backup power sources. Consider the external MOSFET selection based on required current handling and RDS(on) characteristics. Evaluate the need for STAT pin signaling if microcontroller notification is required. Assess thermal performance given the low voltage drop operation.

OR Controllers, Ideal Diodes Part Context

The LTC4412 belongs to Analog Devices' PowerPath family of controllers, specifically targeting applications where battery longevity and efficient power distribution are critical. It serves as a solution for replacing standard diodes in power path designs, offering superior efficiency by minimizing voltage drops during power transfer operations between different energy sources.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4412IS6#TRMPBF

OR Controllers, Ideal Diodes FAQ

How does the LTC4412 handle power switching when an auxiliary source is connected?

When an auxiliary power source is detected, the LTC4412 automatically disconnects the load from the battery and switches to the auxiliary source, ensuring continuous power delivery without interruption.

What is the purpose of the STAT pin on the LTC4412?

The STAT pin can be used to enable an auxiliary P-channel MOSFET power switch or to provide an indicator signal to a microcontroller when an auxiliary power source is present.