Elevation Semiconductor shrinks footprint of AC/DC primary side PWM controllers
Defined by small footprints, the HL9510 and HL9512 flyback PWM controller ICs are the latest energy-efficient, high voltage, power management ICs released by Elevation Systems. They are intended for smart charging in the next generation of smart systems.
The HL9510 and HL9512 operate in a quasi-resonant (QR) mode to significantly enhance the system efficiency and power density. Both ICs offer constant output voltage regulation through the optocoupler feedback controller or shunt regulator and integrate high voltage start up.
The flyback PWM controller ICs protection mechanisms include VDD over-voltage protection (VDD-OVP), brown-out protection, demagnetisation (DMAG) over-voltage protection (DMAG-OVP), DMAG under-voltage protection (DMAG-UVP), IC internal over-temperature protection (OTP) and IC external thermal shut-down.
The brown-in voltage is programmed by an external DMAG pin resistor and has a wide VDD operating range to cover variable output mode applications, such as USB-PD / PPS or conventional DP / DN protocol communications. There is also an auto-restart mode. The VDD-OVP, DMAG-OVP, and external SD protection can be configured with auto-restart or latch mode, and the DMAG-UVP can be configured with auto-restart or long auto-restart mode.
The HL9510 is designed to integrate an internal HV start up circuit, whereas the HL9512 can be set by the external MOS combined ICs aux and st pins.
The HL9510 is available in a 10-lead SOIC package for USB PD / QC portable device battery chargers, high efficiency AC/DC power adapters and a power supply with fixed or variable output voltage.
The HL9512 is supplied in the same package and is suitable for smartphones, tablet PC battery chargers, portable device adapters, and flyback power suppliers with low and / or variable output voltage.
Elevation Semiconductor was founded in 2021 and has a portfolio of high energy-efficient AC/DC products with integrated GaN for the mobile, consumer, and industrial markets.
Elevation Semiconductor is based in Irvine, California, USA.
