Energy Integrationswhich provides high-voltage built-in circuits (ICs) for energy conversion, is providing 5 new reference designs focusing on 800 V automotive functions, primarily based on its 1,700 V InnoSwitch3-AQ flyback switcher ICs.
Spanning energy ranges from 16 W to 120 W, the designs use wound and low-profile planar transformers and goal automotive functions equivalent to DC-DC bus conversion, inverter emergency energy, battery administration and energy provides for auxiliary methods.
The three reference design kits (RDKs) and two design instance studies (DERs) are:
- RDK-994Q — 35 W ultra-low-profile traction inverter gate-drive or emergency energy provide with 40-1,000 VDC enter and 24 V output;
- RDK-1039Q — 18 W energy provide with planar transformer for traction inverter gate driver or emergency energy provide;
- RDK-1054Q — 120 W energy provide with planar transformer, designed to shrink or get rid of heavy, cumbersome 12 V batteries;
- DER-1030Q — 20 W four-output energy provide—one emergency energy provide (EPS) with 24.75 V output and three gate-drive energy provides with 25.5 V output;
- DER-1045Q — 16 W four-output energy provide—one 14 V EPS output and three gate-drive outputs with break up with +18 V / -5 V rails.
The designs characteristic the corporate’s new wide-creepage InSOP-28G package deal, which helps 1,000 VDC on the first aspect whereas offering acceptable creepage and clearance between pins in air pollution diploma 2 environments.
The extremely built-in ICs scale back energy provide invoice of supplies (BOM) depend by as a lot as 50%, in keeping with the corporate, saving house, rising system reliability and easing element sourcing challenges.
Units begin up with as little as 30 V on the drain pin with out exterior circuitry for useful security. Extra safety options embrace enter undervoltage, output overvoltage and overcurrent limiting.
Energy consumption is lower than 15 mW at no-load. The ICs additionally incorporate synchronous rectification and a valley switching, discontinuous/steady conduction mode (DCM/CCM) flyback controller able to delivering higher than 91% effectivity.
“The brand new InSOP-28G package deal, with its large 5.1 mm drain-to-source pin creepage distance, addresses the vital want for enhanced security and reliability in high-voltage functions,” stated Mike Stroka, product advertising engineer at Energy Integrations. “It gives ample isolation that conformal coating will be eradicated, saving a producing course of step and related qualification effort. The InnoSwitch3-AQ IC, that includes a 1,700 V silicon-carbide (SiC) swap, is a perfect resolution for 800 V autos, simplifying manufacturing whereas enhancing general system efficiency and reliability.”
Supply: Energy Integrations
