LTC4412IS6#PBF

OR Controllers, Ideal Diodes Overview

The LTC4412IS6#PBF is a low-loss PowerPath controller manufactured by Analog Devices Inc. It manages external P-channel MOSFETs to create an ideal diode function for power path switching or load sharing. The device operates with a supply voltage range of 2.5V to 28V and features a typical supply current of 15 µA. It supports input voltages from 3V to 28V for adapters and 2.5V to 25V for batteries. The component is housed in a TSOT-23-6 package and functions within a temperature range of -40°C to +85°C.

OR Controllers, Ideal Diodes Feature Summary

• Controls external P-channel MOSFETs to form an ideal diode for efficient OR-ing and automatic switchover between primary and backup power sources.
• Provides automatic load disconnection from auxiliary batteries when a wall adapter or other primary source is present, minimizing reverse current flow.
• Features low static supply current independent of load current, enhancing battery life in portable applications.

OR Controllers, Ideal Diodes Applications

• Smartphones and mobile phones
• Handheld devices and digital cameras
• Laptops and tablets

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #PBF indicates tube packaging rather than tape and reel. Confirm the IS6 variant meets the required -40°C to +85°C operating temperature range for your design. Ensure compatibility with the TSOT-23-6 footprint during PCB layout. Cross-reference the datasheet for exact pinout definitions to prevent installation errors.

OR Controllers, Ideal Diodes Selection Notes

Select this component for designs requiring seamless transition between AC adapters and Li-Ion batteries. It is suitable for systems needing minimal voltage drop across the power path. Consider the 15 µA supply current for ultra-low power standby requirements. Verify that the external MOSFET selected can handle the expected load currents and voltage ratings specified in the application circuit.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4412 series of PowerPath controllers designed for lithium-ion battery applications. It simplifies load sharing operations by allowing multiple power sources to share the load or automatically switch based on availability. The series is optimized for extending battery life and reducing self-heating in compact electronic devices.

OR Controllers, Ideal Diodes FAQ

How does the LTC4412 handle the transition between primary and backup power?

It automatically disconnects the backup battery from the load when the primary source (such as a wall adapter) is present, ensuring the load is powered by the primary source with minimal voltage drop.

What is the typical voltage drop across the MOSFET when conducting?

The voltage drop across the MOSFET is typically 20 mV when conducting, providing high efficiency similar to an ideal diode.