Infineon expands CoolGaN portfolio
Two new industrial-grade devices are tailored for premium HiFi systems and power supplies
Infineon Technologies AG has broadened its CoolGaN TM series with two new devices, the CoolGaN 400V for audio systems and the CoolGaN 600V for low-power SMPS and telecom rectifiers.
The 400V audio device (IGT40R070D1 E8220) is tailored for premium HiFi audio systems where end users demand every detail of their high resolution sound tracks. These have been conventionally addressed by bulky linear or tube amplifiers.
The switch enables smoother switching and more linear class D output stage by offering low/linear C oss, zero Q rr, and normally-off switch. Ideal class D audio amplifiers offers zero percent distortion and 100 percent efficiency. What impairs the linearity and power loss is highly dependent on switching characteristics of the switching device.
Infineon says its CoolGaN breaks through the technology barrier by introducing zero reverse recovery charge in the body diode and very small, linear input and output capacitances. The resulting benefit to the end users is more natural and wider soundstage audio experience.
To further simplify the design, Infineon pairs the CoolGaN 400 V device in an HSOF-8-3 (TO-leadless) package with a popular class D controller (IRS20957STRPBF) in an evaluation board.With the CoolGaN 400V switch as class D output stage, audio designers are able to deliver excellent listening experience to their prospective audio fans.
The CoolGaN 600V industrial-grade device (IGLD60R190D1) enables performance and cost optimisation for low- and mid-power applications, such as in the area of low-power SMPS and telecom rectifiers.
Infineon’s CoolGaN 600 V portfolio is now also extended with a new 190 mΩ, industrial-grade HEMT. This product was developed to fit any consumer and industrial application on an optimised cost with the aim to lower the technology entry barrier. Easy design-in is supported with a standardised DFN 8x8 packaging and the matching driver ICs from the GaN EiceDRIVER series.
The CoolGaN 400 V (IGT40R070D1 E8220) and the new CoolGaN 600 V (IGLD60R190D1) devices can be ordered now. The evaluation board EVAL_AUDAMP24 will be available for order in February, 2020.
