UCC3809DTR-2G4

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Power Management Integrated Circuits (PMICs) are used to ensure that power is efficiently and effectively managed in a variety of electronic applications. One such PMIC is the UCC3809DTR-2G4, which is a low-cost, high efficiency, low-power offline AC-DC converter. This device is ideal for applications requiring regulated DC power output, such as chargers for portable electronics.

The UCC3809DTR-2G4 supports a wide input voltage range of 9V – 75V and can output a regulated DC voltage of up to 5.5V, making it ideal for portable electronic applications requiring an input power range of 9V – 75V. The device utilizes pulse width modulation (PWM) control and is capable of providing up to 1A output current with excellent power stability and wide load range over a temperature range of -40°C to +85°C.

The device also features a programmable frequency of 90kHz - 250kHz and a programmable soft-start time from 10µs to 1,000ms. This enables the device to be optimized for a variety of applications as well as reduce the inrush current during startup and improve the efficiency. Additionally, the device is designed to protect against output overvoltage and overcurrent conditions, meaning that the device can be used in a variety of applications without the need for any external components.

The UCC3809DTR-2G4 has a built-in Totem-pole output stage and features a shutdown mode, enabling the power supply to be quickly switched off to minimize standby power consumption. The device also features a low-battery detect (LBD) output which can be used to indicate when the input voltage drops below a specified threshold. This feature can be used to detect when the system is running low on power and allow for the application to respond accordingly, such as transferring data or powering down.

Overall, the UCC3809DTR-2G4 is an excellent choice for a variety of applications requiring a low-cost, high-efficiency AC-DC converter. The device\'s wide input voltage range, programmable frequency and protections make it ideal for applications such as chargers for portable electronics and other applications. Furthermore, the device is extremely easy to use, making it a great choice for both experienced engineers and those just starting out.

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