Diodes Incorporated — Analog and discrete power solutions

Ideal Diode Controllers

An ideal diode controller is widely used in automotive applications to improve power efficiency and protect the system from reverse voltage or reverse current. It works with an external N-ch MOSFET or back to back MOSFETs to create a low-loss rectifier, significantly reducing power loss compared to traditional diodes or P-ch MOSFET.

Key features include:

  • Reverse voltage protection: Prevents damage from reverse polarity battery connections.
  • Reverse current blocking: Blocks current from flowing backward, protecting sensitive components.
  • Low forward voltage drop: Minimizes power loss, enhancing overall efficiency.

Related App Notes:

Understanding the Different Approaches to Input Reverse Voltage Protection (RVP)

MOSFET Selection Guide for Ideal Diode Controllers