Features and Benefits
- Reduces Power Dissipation by Replacing a Power Schottky Diode
- Wide Operating Voltage Range: 4V to 40V
- Internal 15mΩ N-Channel MOSFET
- Reverse Input Protection to –40V
- Low 9μA Shutdown Current
- Low 150μA Operating Current
- Smooth Switchover without Oscillation
- Available in 16-Pin 5mm × 4mm DFN Package
- AEC-Q100 Qualified for Automotive Applications
The LTC4376 is a 7A ideal diode that uses an internal 15mΩ N-channel MOSFET to replace a Schottky diode when used in diode-OR and high current diode applications. The LTC4376 reduces power consumption, heat dissipation and PC board area.
The LTC4376 controls the forward voltage drop across the internal MOSFET to ensure smooth current delivery without oscillation even at light loads. If a power source fails or is shorted, a fast turn-off minimizes reverse current transients. The LTC4376 also easily ORs power sources to increase total system reliability.
With its low operating voltage, small solution size and the ability to withstand reverse input voltage, the LTC4376 excels in portable battery applications. A shutdown mode is available to reduce the quiescent current to 9μA. The SHDN pin can also control the forward current path when an external MOSFET is used in series with the internal MOSFET in a back-to-back configuration.
- Automotive Battery Protection
- Redundant Power Supplies
- Portable Battery Devices
- Computer Systems/Servers
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Demonstration circuit 2705A showcases the LTC4376 ideal diode controller with integrated MOSFET and reverse input protection up to –40V. The LTC4376 has a current capability of 7A. The board includes two independent LTC4376 ideal diode circuits sharing a common ground and operating over a range of 4V to 40V.
Demonstration circuit 2706A showcases the LTC4376 ideal diode controller with integrated MOSFET and –40V reverse input protection. The board showcases the high side switch functionality of the LTC4376 by utilizing an additional switch MOSFET in conjunction with the GATE pin of the device. The LTC4376 has a current capability of 7A. The board includes two independent LTC4376 ideal diode circuits sharing a common ground and operating over a range of 4V to 40V.
Tools & Simulations
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.
Models for the following parts are available in LTspice:
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.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.