LT8672
LT8672
RECOMMENDED FOR NEW DESIGNSActive Rectifier Controller with Reverse Protection
- Part Models
- 30
- 1ku List Price
- Starting From $2.09
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Overview
- AEC-Q100 Qualified for Automotive Applications
- Reverse Input Protection to –40V
- Improved Performance Compared to a Schottky Diode
- Reduce Power Dissipation by >90%
- Reduce Drop to 20mV
- Ultrafast Transient Response
- Rectifies 6VP-P Up to 50kHz
- Rectifies 2VP-P Up to 100kHz
- Wide Operating Voltage Range: 3V to 42V
- Low 20µA Quiescent Current in Operation
- Low 3.5µA Shutdown Current
- Accurate 1.21V Enable Pin Threshold
- Small 10-Lead MSOP Package, 10-Lead 3mm × 2mm DFN Package and 3mm × 2mm Side-Wettable DFN Package
The LT8672 is an active rectifier controller for reverse input protection. It drives an external N-channel MOSFET to replace a power Schottky diode. Its very low quiescent current and fast transient response meet the tough requirements in automotive applications where AC input signals of up to 100kHz are present. These signals are rectified with minimum power dissipation on the external FET, simplifying thermal management on the PCB.
With a drop of only 20mV, the LT8672 solution eases the minimum input voltage requirement during cold crank and start-stop, allowing simpler and more efficient circuits. If the input power source fails or is shorted, a fast turn-off minimizes reverse current transients. An available shutdown mode reduces the quiescent current to 3.5μA.
An integrated auxiliary boost regulator provides the required boost voltage to turn the external FET fully on. A power good pin signals when the external FET is ready to take load current.
Applications
- Automotive Battery Protection
- Industrial Supplies
- Portable Instrumentation
Documentation
Data Sheet 1
Design Note 1
Technical Articles 1
Video 1
Product Selection Guide 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Models | Product Lifecycle | PCN |
|---|---|---|
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Oct 22, 2024 - 24_0224 Pin 1 Chamfer Improvement on 10L-LFCSP for LT8604, LT8618, LT8672 |
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| LT8672EDDBM#WTRMPBF | PRODUCTION | |
| LT8672EDDBM#WTRPBF | PRODUCTION | |
| LT8672IDDBM#WTRMPBF | PRODUCTION | |
| LT8672IDDBM#WTRPBF | PRODUCTION | |
| LT8672JDDBM#WTRMPBF | PRODUCTION | |
| LT8672JDDBM#WTRPBF | PRODUCTION | |
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Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
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| LT8672EMS#PBF | PRODUCTION | |
| LT8672EMS#TRPBF | PRODUCTION | |
| LT8672HMS#PBF | PRODUCTION | |
| LT8672HMS#TRPBF | PRODUCTION | |
| LT8672IMS#PBF | PRODUCTION | |
| LT8672IMS#TRPBF | PRODUCTION | |
| LT8672JMS#PBF | PRODUCTION | |
| LT8672JMS#TRPBF | PRODUCTION | |
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Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
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| LT8672EMS#PBF | PRODUCTION | |
| LT8672EMS#TRPBF | PRODUCTION | |
| LT8672EMS#WPBF | PRODUCTION | |
| LT8672EMS#WTRPBF | PRODUCTION | |
| LT8672HMS#PBF | PRODUCTION | |
| LT8672HMS#TRPBF | PRODUCTION | |
| LT8672HMS#WPBF | PRODUCTION | |
| LT8672HMS#WTRPBF | PRODUCTION | |
| LT8672IMS#PBF | PRODUCTION | |
| LT8672IMS#TRPBF | PRODUCTION | |
| LT8672IMS#WPBF | PRODUCTION | |
| LT8672IMS#WTRPBF | PRODUCTION | |
| LT8672JMS#PBF | PRODUCTION | |
| LT8672JMS#TRPBF | PRODUCTION | |
| LT8672JMS#WPBF | PRODUCTION | |
| LT8672JMS#WTRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LT8672EMS#WPBF | PRODUCTION | |
| LT8672EMS#WTRPBF | PRODUCTION | |
| LT8672HMS#WPBF | PRODUCTION | |
| LT8672HMS#WTRPBF | PRODUCTION | |
| LT8672IMS#WPBF | PRODUCTION | |
| LT8672IMS#WTRPBF | PRODUCTION | |
| LT8672JMS#WPBF | PRODUCTION | |
| LT8672JMS#WTRPBF | PRODUCTION | |
|
Apr 18, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
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| LT8672EMS#WPBF | PRODUCTION | |
| LT8672EMS#WTRPBF | PRODUCTION | |
| LT8672HMS#WPBF | PRODUCTION | |
| LT8672HMS#WTRPBF | PRODUCTION | |
| LT8672IMS#WPBF | PRODUCTION | |
| LT8672IMS#WTRPBF | PRODUCTION | |
| LT8672JMS#WPBF | PRODUCTION | |
| LT8672JMS#WTRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4359 | RECOMMENDED FOR NEW DESIGNS | Ideal Diode Controller with Reverse Input Protection |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT8672
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.