SLUS224H September 1994 – October 2024 UC1842A , UC1843A , UC1844A , UC1845A , UC2842A , UC2843A , UC2844A , UC2845A , UC3842A , UC3843A , UC3844A , UC3845A
PRODUCTION DATA
The UCx84xA family of fixed-frequency pulse-width-modulator (PWM) controllers are designed to operate at switching frequencies of 500 kHz. These controllers are designed for peak current mode (PCM) and can be used in isolated and non-isolated power supply designs. These controllers can drive FETs directly from the output, which is capable of sourcing and sinking up to 1 A of gate driver current. These devices also have a built-in low-impedance amplifier that can be used in non-isolated designs to control the power supply output voltage and feedback loop.