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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 16SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：AC DC Offline Switcher
- Topology：Flyback, Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：2
- Voltage - Supply (Min)：7.5V
- Voltage - Supply (Max)：25V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The FL7921RMX is a critical conduction mode (CRM) power factor correction controller from onsemi, designed for high-efficiency AC-DC conversion. It integrates a quasi-resonant flyback controller to manage PFC and secondary-side regulation in a single package. The device operates within a temperature range of -40°C to +125°C and features a 16-pin SOP package. Key electrical specifications include a switching frequency of 440 Hz and a power dissipation rating of 800 mW. It supports surface-mount installation and is moisture sensitive.
Feature Summary
- Integrates CRM PFC and QR Flyback control functions
- Operates in critical conduction mode for efficiency optimization
- Supports wide operating temperature ranges
Applications
- AC-DC power supplies
- LED drivers
- Adapters and chargers
Procurement Notes
Verify the specific suffix RMX against the official datasheet to confirm packaging details such as reel or cut tape configuration. Ensure compatibility with moisture sensitivity levels during storage and reflow soldering processes. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when designing systems requiring integrated PFC and flyback control in a compact form factor. Consider the 16-pin SOP package constraints for PCB layout. Evaluate the 440 Hz switching frequency against electromagnetic interference requirements. Verify that the 800 mW power dissipation rating aligns with your thermal management strategy for the intended application environment.
Part Context
This part belongs to the FL7921R series of power management ICs. It is categorized under PMIC and specifically designed for power factor correction applications. The device represents an integrated solution combining primary side PFC control with secondary side regulation capabilities.
Replacement Considerations
The FAN6921AMRMY is a documented substitute offering similar integrated CRM PFC and QR Flyback control functionality. Both devices share comparable pinouts and operational principles within the same product family.
