AC/DC primary side PWM controllers have small footprints for fast charging

Two power ICs, the HL9510 and HL9512 are flyback PWM controller ICs that operate in a quasi-resonant (QR) mode to significantly enhance the system efficiency and power density. Elevation Semiconductor has developed its latest energy-efficient, high voltage power management device for the next generation of smart systems; both controller ICs have smaller footprints for fast-charging solutions.

The HL9510 and HL9512 are flyback PWM controller ICs both offer constant output voltage regulation through the optocoupler feedback controller or shunt regulator and integrate high voltage start up. 

Protection includes VDD over-voltage protection (VDD-OVP), brown-out protection, DMAG over-voltage protection (DMAG-OVP), DMAG under-voltage protection (DMAG-UVP), IC internal over-temperature protection (OTP), and IC external thermal shut-down (SD). 

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 communication. 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 startup circuit, and the HL9512 is designed for use with the external MOS AUX and ST pins. 

The HL9510 is available in a 10-lead SOIC package ideal 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 also comes in the same package and is ideal 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 by veterans from leading analogue companies experienced in AC/DC power, silicon controllers, and GaN intellectual properties. The company has a vast portfolio of energy-efficient AC/DC products with integrated GaN for the mobile, consumer, and industrial markets. 

Elevation Semiconductor is based in Irvine, California, USA.

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