The LM73100 Ideal Diode Power Protection Module is a high-efficiency solution for controlling current flow in DC power systems. Designed to replace traditional diodes, this module allows current to flow in one direction while minimizing voltage drop and power loss. Instead of the large forward voltage drop found in standard diodes, the LM73100 uses internal back to back MOSFETs to achieve very low on resistance, improving efficiency in high current applications.
This module is suitable for systems operating from 3V to 23V DC and supports load currents up to 5A. It is ideal for power path management in battery powered systems, solar inputs, and other applications where efficiency and protection are critical.
Key Features
Ideal diode functionality with true reverse current blocking
Very low voltage drop compared to standard diodes
Supports high current up to 5A
Wide DC input voltage range
Integrated back to back MOSFET design
Reverse polarity protection
Fast response to overvoltage and overcurrent events
Analog current monitor output for load measurement
Power good status indication
Terminal block connections for easy wiring
Technical Specifications
| Parameter | Specification |
|---|
| Controller IC | LM73100 |
| Operating Input Voltage | 2.7V to 23V |
| Absolute Maximum Voltage | 28V |
| Maximum Continuous Current | Up to 5A |
| Typical On Resistance | 28.4 mΩ |
| Reverse Voltage Tolerance | Down to -15V |
| Reverse Current Blocking | Yes |
| Overvoltage Response Time | Approximately 1.2 microseconds |
| Overcurrent Response Time | Approximately 500 nanoseconds |
| Current Monitor Output | IMON analog output |
| Current Monitoring Range | 0.5A to 5.5A |
| Monitoring Accuracy | ±15 percent typical at 1A and above |
| Protection Features | Overtemperature, overcurrent, reverse voltage |
| Board Dimensions | 25.6mm x 17.6mm x 11.9mm |
How to Use
Connect the power source to the input terminal block
Connect the load to the output terminal block
Ensure correct polarity for normal operation
Monitor load current using the IMON analog output if required
Observe the power good indicator to confirm correct current direction
The module can be used directly in a circuit using the terminal blocks or mounted on a breadboard using the included header pins.
Applications
Battery protection and power path control
Solar power input management
High efficiency power OR-ing
DC power distribution systems
Embedded and industrial electronics
Energy sensitive projects
Package Includes
Why Choose This Module
This LM73100 ideal diode module provides a reliable and efficient alternative to traditional diodes in high current DC systems. With low power loss, fast protection response, and simple integration, it is well suited for modern power management designs where efficiency and reliability are important.
Upgrade your power protection design with this high performance LM73100 ideal diode module.
