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Controller IC from Diodes Incorporated Simplifies Ideal Diode Emulation to Raise Efficiency of Reverse Discharge Protection Circuitry
By combining the DZDH0401DW with a low on-state resistance MOSFET, designers will benefit from vastly reduced power dissipation, when compared to Schottky diode solutions, particularly in high power applications. This improved efficiency results in lower thermal management costs and increased system reliability. In this configuration, the DZDH0401DW detects when input power is disconnected, then drives the MOSFET into an OFF state, thereby isolating any return current path and maintaining system stability.
The complete reverse discharge protection solution consists of the controller, a MOSFET and two resistors. This simple and compact arrangement minimizes design effort and provides a solution that is suitable for deployment in space constrained designs.
The DIODES™ DZDH0401DW is available in a SOT363 package (with 2.15mm x 2.1mm x 1mm dimensions). Manufactured in IATF 16949 certified facilities, it has a unit price of
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