TDA4862G GEG

Overview

The TDA4862G GEG is a Power Factor Correction Controller designed for high power factor and active harmonic filtering applications. It controls boost converters to achieve a power factor approaching unity. The device features an internal start-up circuit with low current consumption, a zero current detector for discontinuous operation mode, and a high-current totem pole gate driver. It includes a fast overvoltage regulator and a current sense input with an internal low-pass filter. The unit utilizes a trimmed ±1.4% internal reference and undervoltage lock-out with hysteresis. It is housed in an 8-pin DSO package.

Feature Summary

• Controls boost converter as an active harmonics filter
• Internal start-up with low current consumption
• Zero current detector for discontinuous operation mode
• High current totem pole gate driver

Applications

• Power factor pre-converters
• Active harmonic filters
• AC to DC power conversion systems

Procurement Notes

Verify the specific suffix 'GEG' against official Infineon documentation to confirm the tape-and-reel packaging configuration. Ensure compatibility with existing board layouts by checking pin assignments against standard world-compatible interfaces. Confirm RoHS compliance status through the manufacturer's material content declaration before procurement.

Selection Notes

Select this component for designs requiring high power factor correction with active harmonic filtering capabilities. Consider the internal low-pass filter on the current sense input for noise immunity. Evaluate the low start-up current consumption for efficiency requirements in standby modes. Verify that the 8-pin DSO package fits the thermal and spatial constraints of the target application.

Part Context

This part belongs to the TDA4862 family of bipolar ICs manufactured by Infineon Technologies. It is specifically categorized under power management circuits for power factor correction. The device is designed to replace older standards while maintaining pin compatibility. It serves as a core controller for AC-DC conversion stages in industrial and commercial power supplies.

Replacement Considerations

Consult official Infineon substitution guides for verified alternatives. Do not assume functional equivalence with generic PFC controllers due to specific internal features like the zero current detector.