HV9120NG-G-M901

DC DC Switching Controllers Overview

The HV9120NG-G-M901 is a high-voltage, current-mode PWM controller IC designed for flyback converter topologies. Manufactured by Microchip Technology, it operates with a switching frequency of 3MHz and supports a maximum duty cycle of 49.4%. The device features a positive output configuration suitable for step-up and step-down DC-DC applications. It accepts a supply voltage range of 10V to 450V and provides one output phase via a transistor driver. The component is housed in a 16-SOIC package (0.154 inch width) and is rated for an operating junction temperature range of -55°C to 125°C.

DC DC Switching Controllers Feature Summary

• Implements current-mode PWM control architecture for efficient power regulation.
• Integrates high-voltage startup circuitry supporting wide input supply ranges.
• Provides precise reference accuracy for stable output voltage control.
• Includes enable, frequency control, and reset functions for system management.

DC DC Switching Controllers Applications

• Flyback switch-mode power supplies
• Step-up and step-down DC-DC converters
• High-voltage isolated power conversion systems

DC DC Switching Controllers Procurement Notes

Verify the specific ordering suffix M901 to confirm tape-and-reel packaging quantities. Ensure compatibility with 16-SOIC footprints during PCB layout. Confirm RoHS3 compliance requirements against project specifications. Validate that the 450V supply rating aligns with the target application's electrical stress limits before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing flyback converters requiring high-voltage integration and current-mode control. The 3MHz switching frequency allows for reduced passive component sizes compared to lower-frequency alternatives. Ensure the design accommodates the 16-SOIC thermal characteristics and verify that the 49.4% maximum duty cycle meets the required voltage conversion ratios for the specific transformer design.

DC DC Switching Controllers Part Context

This part belongs to the HV9120 family of high-voltage controllers from Microchip Technology. It shares architectural similarities with related models like the HV9123 but differs in package options and specific pin configurations. The series is engineered for cost-effective, high-performance power management solutions in industrial and consumer electronics applications requiring isolated power stages.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other variants within the HV9120 family or compatible flyback controllers from Microchip. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Consult official cross-reference documents for approved alternative part numbers ensuring identical functionality and package dimensions.

DC DC Switching Controllers FAQ

What is the maximum duty cycle supported by the HV9120NG-G-M901?

The device supports a maximum duty cycle of 49.4%.

Does the HV9120NG-G-M901 support synchronous rectification?

No, the component does not include integrated synchronous rectifier drivers.

What is the specified switching frequency for this controller?

The fixed switching frequency is 3MHz.