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News
Power Integrations Releases InnoSwitch3-PD Reference Design for Ultra-Compact USB Type C, PD + PPS Adapter
2021-11-09 | Return
SAN JOSE, Calif.Power Integrations, the leader in high-voltage integrated circuits for energy-efficient power conversion, today published a new reference design that describes a USB Power Delivery (PD) charger with exceptional performance and very low component count. Based around Power Integrations' new InnoSwitch™3-PD PowiGaN™ flyback switcher and HiperPFS™-4 PFC controller ICs, the DER-937 report contains the power supply specification, schematic, PCB layout, bill of materials, detailed magnetics specifications and performance data of a power factor corrected (PFC) 100 W USB PD 3.0 + Programmable Power Supply (PPS) charger using only 117 components.Aditya Kulkarni, senior product marketing engineer at Power Integrations, said: "This USB PD charger design reaches efficiency levels in excess of 93%, including input, PFC and flyback stages. Its no-load performance is also excellent – the circuit requires less than 40 mW no-load input power at 230 VAC. BOM count is approximately half that of conventional designs, saving space, reducing design time and simplifying component sourcing for high-volume manufacture of slim, ultra-compact OEM and aftermarket chargers."
DER-937 uses two recently introduced ICs from Power Integrations. The InnoSwitch3-PD INN3870C off-line quasi-resonant flyback switcher combines a USB Type C and USB PD controller, high-voltage PowiGaN gallium-nitride switch, synchronous rectification and FluxLink™ feedback. The HiperPFS-4 PFS7628C PFC controller IC, available with an integrated Qspeed™ low-reverse-recovery-charge (Qrr) boost diode, delivers greater than 98% efficiency across the full load range.
Availability & Resources
DER-937 is available to download on the Power Integrations website at power.com/der-937.
Source: http://www.powerint.com/