UCC2813QDR-2Q1 Integrated Circuits (ICs)

Power management integrated circuits (PMIC) are a key part of the electronic components which allows for the power converters to operate on a higher voltages with lower power loss. UCC2813QDR-2Q1 is one of the power management integrated circuit used for AC/DC converters, offline switchers, and system power solutions.

UCC2813QDR-2Q1 is an integrated solution for high-performance AC/DC applications including isolated and non-isolated offline switching applications and AC/DC to DC/DC converter designs. This device provides a highly integrated power solution with significantly reduced external components compared to traditional solutions. It integrates a number of device features to provide a comprehensive design solution that can reduce design effort, simplify the user’s task and reduce cost.

UCC2813QDR-2Q1 features 15-ns current-mode architecture and a total of 10-pin includes a voltage detector, high voltage start circuit, 2 linear regulators, 2 P-channel MOSFETs, and one N-channel MOSFET. This device also includes a start circuit to reduce design components and help achieve safety-critical ratings with a single start capacitor and no external RC circuit. This device also has soft-start function, short-circuit protection, load feed-forward, and low-glitch on-time control.

The voltage detector is an important feature of UCC2813QDR-2Q1 which provides a signal for the start circuit and for the two linear regulators. This device also gives the flexibility of selecting three different operating modes from standby, burst-mode, and continuous mode. These modes give the user flexibility of their power delivery profile according to their requirement of low ripple and low standby power consumption.

To control the peak current of the P-channel MOSFET, UCC2813QDR-2Q1 includes an inherent constant on-time control where the peak current is automatically reduced with the increase in the load or line charge. This also helps to reduce the output voltage ripple and achieve a high power efficiency with different loads and line charges.

UCC2813QDR-2Q1 also includes a built-in PGOOD signal which gives the user a feedback on the output voltage after the fault protection is activated. This PGOOD signal helps to restart the system under fault conditions without draining the input energy. This helps to reduce the system downtime due to faults.

UCC2813QDR-2Q1 has a comprehensive suite of protection functions--over-current protection, short-circuit protection, open loop protection, and over-voltage protection. These protection functions help to reduce the stress on the system due to dangerous over-voltage or over-current caused by faulty loads or system connections. This helps to maintain a steady, safe, and efficient operation.

UCC2813QDR-2Q1 is designed for AC/DC converters, offline switchers, and system power solutions as a complete and integrated device that offers improved performance and reduced system cost. Its on-time constant peak current control reduces the output voltage ripple and helps to achieve a high efficiency. Its comprehensive suite of protection functions also helps to reduce the system stress and downtime due to faults.