UC2824DWG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The UC2824DWG4 is a bipolar switching mode DC-to-DC controller with enhanced 3-state logic power supply regulators. It is designed for high-frequency synchronous step-down and step-up switching regulator applications. It is also suitable for forward, flyback and bridge-mode topologies. The UC2824DWG4 is typically used in buck/boost/buck-boost configurations and as a power supply supervisor with undervoltage/overvoltage protection. Its features such as built-in current limit, adjustable duty cycle, precision reference, and short circuit protection, ensure reliable and efficient operation of both step-down and step-up switching regulator applications.

The UC2824DWG4 provides a wide input voltage range of ±0.2V to 28V and a wide output voltage range of 0.5V to 34V. It has an operating temperature range of -40 to +85°C and a typical efficiency of up to 95%. It also has a fast response time of 0.2µs, which allows for a higher switching frequency. The switch-on or switch-off of the output voltage can be controlled by a logic signal from the controller.

The UC2824DWG4 has four primary switches anduses switching techniques to regulate the output voltage by varying the switch-on time. It uses a synchronous rectifier and a current-mode control scheme to achieve fast response time, low output voltage ripple, and excellent line and load regulation. The synchronous rectifier switch-on time is proportional to the inductor current. This makes the current-mode control scheme more efficient, as it reduces power loss due to commutation.

The UC2824DWG4 has internal adjustable detecting undervoltage/overvoltage protection. In case of an undervoltage situation, the UC2824DWG4 monitors the output in order to detect an undervoltage condition. If the UC2824DWG4 detects an undervoltage condition, it switches-off the output voltage, preventing an uncontrolled output voltage droop. The UC2824DWG4 features a power-on proof-state feature that ensures the dataline voltage will be well above the output voltage when power is restored. This feature prevents unreliable operation due to leakage current.

The UC2824DWG4 provides excellent short circuit protection by limiting the peak switch current and average current. It is also designed to drive an external switch with an on-resistance of up to 0.5 ohm. The UC2824DWG4 features low quiescent current, adjustable frequency of up to 1MHz, and an enable/disable pin for input control.

The UC2824DWG4 is ideal for applications such as DC/DC converters, high-frequency power supplies, battery chargers, and other switching mode power supplies. It can be used in various topologies including buck, boost, flyback and buck/boost. It is highly efficient and reliable device, and it is suitable for a wide range of voltage and current requirements.

The specific data is subject to PDF, and the above content is for reference