TEA1504

Notes
1. All voltages are referenced to GND (pin 11).
2. Equivalent to discharging a 100 pF capacitor through a 1.5 kW series resistor.
3. Equivalent to discharging a 200 pF capacitor through a 0.75 mH coil.

The GreenChip^TM TEA1504 is intended for off-line 90 to 276 V (AC) power supply applications. It is one of a family of high voltage ICs integrating both analog and digital circuit functions for controlling a switched mode power supply (SMPS). Its functions include integrated high voltage start-up current source, voltage Pulse Width Mode (PWM) control, 5% accurate oscillator, band-gap derived reference voltages, comprehensive fault protection and leading edge blanking. Its high level of integration allows power supplies to be cost effective, compact, lightweight, highly efficient, more reliable, and simple to design. Efficient green features permit very low power operation modes, and an innovative on/off function allows an expensive mains switch to be replaced with a low-cost functional switch.

The GreenChip^TM family of ICs are fully integrated with most common PWM functions such as error amplifier, oscillator, bias current generator and band-gap based reference voltage circuits. The high level of integration allows easy and cost effective power supply design. The ICs are made by a Philips proprietary high voltage BCDMOS process which produces low voltage circuit devices with inputs that are able to withstand up to 720 V.