Ideal Diode Application

作者： 时间：2024-03-06 16:03:46 阅读：257

Because the forward voltage drop of Schottky diode can produce significant power consumption in circuit applications, 

it is not suitable for low voltage and high current applications. As the power levels of automotive and energy applications

 increase and the demand for power density increases, the need to drive external MOSFETs through a diode controller 

becomes an alternative to a new generation of high-performance system designs.

SDC7315 can be applied to photovoltaic junction box circuits to achieve reverse protection of photovoltaic modules 

and prevent photovoltaic panels from being damaged due to heat spot effect.

The SDC7315 is an ideal positive high voltage ideal diode controller that drives external N-channel MOSFETs in place

of Schottky diodes and can be used in redundant and high current diode circuits to reduce power consumption and 

PCB footprint. The SDC7315 drives an external MOSFET to perform redundant power management to improve system

 reliability. In redundant diode applications, the SDC7315 can control the forward voltage drop at both ends of the 

MOSFET to ensure smooth current transfer from one path to the other without oscillations, and in the event of a power 

failure or short circuit, the MOSFET is quickly turned off to minimize reverse current transients.

Feature：

• Drive external N-Channel MOSFETs instead of Schottky diodes to reduce power consumption;

• 0.5μs shutdown time limit fault current;

• Wide operating voltage range: 9-80V;

• Circuit no oscillation switching;

• Reverse current turn-off circuit protection。