TDA4862

Overview

The TDA4862 is a bipolar Power Factor Correction (PFC) integrated circuit designed for high power factor and active harmonic filtering applications. It controls boost converters to achieve a power factor approaching unity while reducing total harmonic distortion. The device features an internal start-up mechanism with low current consumption, a zero-current detector for discontinuous conduction mode operation, 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 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 conversion systems requiring high power factor

Procurement Notes

Verify the specific ordering suffix, such as XUMA2, to confirm tape-and-reel packaging requirements. Ensure compatibility with the target input voltage range of 220 to 330 V AC. Confirm that the application design accounts for the bipolar IC technology characteristics and the 8-pin DSO thermal constraints during integration.

Selection Notes

Select this component when designing systems requiring a power factor approaching one and active harmonic filtering capabilities. It is suitable for applications needing a trimmed internal reference and undervoltage lock-out with hysteresis. Consider the pin compatibility with world standards if migrating from legacy designs.

Part Context

This component belongs to Infineon's TDA series of power management solutions. It is specifically engineered as a bipolar IC type for power factor correction tasks. The device is part of a family that includes related models like the TDA4863, offering specialized control for high-efficiency power conversion stages in industrial and commercial power supplies.

Replacement Considerations

Check for pin-compatible alternatives within the same product family. Verify functional equivalence regarding the boost converter control logic and gate driver specifications before substituting.