Monolithic integration provides better matching and thermal tracking between diodes while dielectric isolation offers design flexibility.
CHT-ELARA is packaged in a small hermetically sealed 5×5.5mm TDFP16 ceramic package, featuring a heat slug to achieve a junction-to-case thermal resistance as low as 11°C/W. High integration level and enhanced thermal characteristics make CHT-ELARA an optimal solution for power rectification, e.g. in flyback or forward DC/DC converters and gate drivers.
CHT-ELARA diodes have a low junction capacitance of 15pF at 25V reverse voltage, making them suited for AC signal rectification, for example in a full-bridge rectifier easily implemented with a single chip. The diodes have a forward voltage of 0.33V for a forward current of 1mA at +225°C. They present a leakage current limited to 2µA at 80V reverse voltage and +225°C, making ELARA very suitable for high temperature voltage multipliers (charge-pump). With a forward current of 450mA for a forward voltage of 1.5V at +225°C, ELARA can also be used in voltage clamping applications.
Pierre Delatte, CTO, CISSOID, commented: “CHT-ELARA is a very flexible product that can be used across the full temperature range (-55 to +225°C) as a full bridge rectifier, a single diode, a clamping device or any other configuration (e.g. common cathode or common anode). It provides the robustness and extended life time required in aeronautics, oil & gas and industrial applications.”