UCC2804N

The UCC2804N is a high-voltage monolithic pulse-width-modulated (PWM) controller designed for off-line, low power AC/DC or DC/DC applications that require a minimum system cost, or for linear conversion applications.

The UCC2804N provides an easy-to-design, space-saving solution for a variety of low power AC/DC or DC/DC applications. This family of single-chip monolithic pulse-width-modulated (PWM) controllers provides well-regulated, switch-mode power conversion, allowing the use of smaller power transfomers and other power conversion components.

UCC2804N application fields include but are not limited to: secondary isolated power supplies from 120V AC input, power supplies for communications equipment, off-line power conversion, remote control gear, mechanical and electronic systems and adapters.

Working Principle of UCC2804N

The UCC2804N works based on the principle of pulse width modulation (PWM). PWM is a pulse modulation technique that varies the pulse width to regulate the output voltage.

The UCC2804N produces a time varying duty cycle output that varies the voltage at the output based on the input voltage. The duty cycle is proportional to the input voltage and reduces when the input voltage increases. The duty cycle then increases when the input voltage decreases. This process allows the output voltage from the UCC2804N to remain relatively constant.

The UCC2804N also features embedded protections such as over-voltage, under-voltage, over-temperature, over-current and short circuit protection. The UCC2804N delivers high performance, efficient power conversion and improved system reliability.

Conclusion

The UCC2804N is a monolithic PWM controller for off-line, low power AC/DC or DC/DC applications. It is designed to provide an easy-to-design, space-saving solution for a variety of low power AC/DC or DC/DC applications. The UCC2804N works based on the principle of pulse width modulation (PWM) and produces a time varying duty cycle output. It also offers some protection features like over-voltage, under-voltage, over-temperature, over-current and short circuit protection which further improves its reliability.