General description
The TEA1610 is a monolithic integrated circuit implemented in a high-voltage Diffusion Metal Oxide Semiconductor (DMOS) process. The circuit is a high voltage controller for a zero-voltage switching resonant converter. The IC provides the drive function for two discrete power MOSFETs in a half-bridge configuration. It also includes a level-shift circuit, an oscillator with accurately-programmable frequency range, a latched shut-down function and a transconductance error amplifier.
To guarantee an accurate 50 % switching duty factor, the oscillator signal passes through a divide-by-two flip-flop before being fed to the output drivers.
The circuit is very flexible and enables a broad range of applications for different mains voltages.
Features
â Integrated high voltage level-shift function
â Integrated high voltage bootstrap diode
â Low start-up current (green function)
â Adjustable dead time
â Transconductance error amplifier for ultra high-ohmic regulation feedback
â Latched shut-down circuit for overcurrent and overvoltage protection
â Adjustable minimum and maximum frequencies
â Undervoltage lockout
Applications
â TV and monitor power supplies
â High voltage power supplies
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