The LM74720-Q1 ideal diode controller drives and controls external back-to-back N-Channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF control and overvoltage protection. The wide input supply of 3 V to 65 V allows protection and control of 12-V and 24-V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65 V. An integrated ideal diode controller (GATE) drives the first MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. A strong boost regulator with fast turn ON and OFF comparators ensures robust and efficient MOSFET switching performance during automotive testing such as ISO16750 or LV124 where an ECU is subjected to input short interruptions and AC superimpose input signals up to 100-kHz frequency. Low Quiescent Current 35 µA (maximum) in operation enables always ON system designs. With a second MOSFET in the power path, the device allows load disconnect control using EN pin. Quiescent current reduces to 3.3 µA (maximum) with EN low. The device features an adjustable overvoltage cut-off protection feature for load dump protection.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LM74720-Q1 Low IQ Automotive Ideal Diode Controller with Active Rectification and Load Dump Protection datasheet (Rev. B) | PDF | HTML | Mar 29, 2022 |
| Functional safety information | LM74720-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | May 27, 2025 | |
| Product overview | Mobileye EyeQ™6H – Discrete Power Tree | PDF | HTML | Nov 7, 2024 | |
| Technical article | 3 ways to design a low quiescent-current (Iq) automotive reverse battery protectio | PDF | HTML | Nov 18, 2021 | |
| Application note | Basics of Ideal Diodes (Rev. B) | PDF | HTML | Oct 5, 2021 | |
| Application brief | Active Rectification and its Advantages in Automotive ECU Designs | PDF | HTML | Sep 29, 2021 | |
| Analog design Journal | Automotive EMC-compliant reverse-battery protection with ideal-diode controllers | Sep 22, 2020 |
For additional terms or required resources, click any title below to view the detail page where available.
TI's Evaluation Module LM7472EVM helps designers evaluate the operation and performance of the LM74720-Q1 and LM74722-Q1 ideal diode controllers in reverse battery protection applications. This evaluation module demonstrates how LM7472x-Q1 with integrated boost regulator for Low IQ and fast (...)
This power-supply design is an abstract of the test report of our discrete power tree for the Mobileye EyeQ™6H SoC. Automotive applications such as Autonomous Driving Assist Systems (ADAS) use ADAS domain controller processors such as the Mobileye EyeQ™6H. These are sophisticated processors which (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DRR) | 12 | Ultra Librarian |
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