HV9123NG-G-M901

DC DC Switching Controllers Overview

The HV9123NG-G-M901 is a high-voltage DC-DC switching controller designed for flyback topologies. It operates with a fixed switching frequency of 3MHz and supports a supply voltage range of 10V to 450V. The device features a maximum duty cycle of 97% and provides a single positive output via a transistor driver stage. It is housed in a 16-SOIC package and functions within a junction temperature range of -55°C to 125°C.

DC DC Switching Controllers Feature Summary

• Integrated high-voltage startup circuit enabling operation from wide input voltage ranges up to 450V without external bias components.
• Fixed 3MHz switching frequency allows for the use of smaller passive components, reducing overall solution size.
• Includes programmable frequency control and enable functionality for system synchronization and power management flexibility.

DC DC Switching Controllers Applications

• High-density industrial power supplies
• Battery chargers for portable devices
• LED lighting drivers requiring isolated outputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix M901 corresponds to the tape and reel packaging configuration required for your assembly line. Confirm that the 16-SOIC footprint matches your PCB design guidelines. Ensure the component meets RoHS3 compliance standards if mandated by your regional regulations or customer specifications before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when a compact flyback solution is needed with high input voltage tolerance. The 3MHz frequency is suitable for applications prioritizing small magnetic component size over extreme efficiency at light loads. Compare against the HV9120 variant if a lower switching frequency or different duty cycle characteristics are preferred for specific transformer designs.

DC DC Switching Controllers Part Context

This part belongs to the HV912x series of high-voltage switchmode controllers from Microchip Technology. These devices are engineered to simplify the design of isolated power converters by integrating the high-voltage startup circuitry directly into the IC. The series targets applications where board space is limited and high reliability is required across wide temperature ranges.

DC DC Switching Controllers Replacement Considerations

The HV9120NG-G-M901 is a related variant within the same family. Verify if the difference in maximum duty cycle (49.4% vs 97%) and switching frequency requirements aligns with your current transformer design before substituting.