TDA16847-2

Power Supply Controllers, Monitors Overview

The TDA16847-2 is a DC to DC PWM-QR IC optimized for controlling free-running or fixed-frequency flyback converters with or without Power Factor Correction (Current Pump). It supports switch mode power supplies requiring low-power standby and PFC. The device reduces switching frequency in small steps as load decreases, reaching an adjustable minimum of 20 kHz in standby mode.

Power Supply Controllers, Monitors Feature Summary

• Optimized control for free-running or fixed-frequency flyback converters
• Supports Power Factor Correction via Current Pump topology
• Enables low-power standby through adaptive frequency reduction

Power Supply Controllers, Monitors Applications

• Switch Mode Power Supplies supporting low-Power Standby
• Power Factor Correction applications using Current Pump
• Free-running flyback converter designs
• Fixed frequency flyback converter designs

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix against official Infineon documentation to confirm package type and tape/reel specifications. Ensure the component matches the required flyback control topology and PFC integration needs. Cross-reference the part number with current product status to confirm availability and compliance with relevant standards.

Power Supply Controllers, Monitors Selection Notes

Select this controller for flyback topologies requiring integrated PFC support and efficient light-load performance. The adaptive frequency reduction feature is critical for meeting low-power standby requirements. Ensure the design accommodates the adjustable minimum switching frequency range specified for the target application.

Power Supply Controllers, Monitors Part Context

This component belongs to the TDA series of power management controllers from Infineon Technologies AG. It is designed specifically for AC/DC conversion applications where efficiency at partial loads and power factor correction are key design constraints. The device integrates control logic for quasi-resonant operation.

Power Supply Controllers, Monitors Replacement Considerations

The TDA16846-2 is documented as a related controller within the same family, optimized for similar flyback converter applications with PFC capabilities. Verify functional equivalence and pin compatibility before substitution.