UBA2037T/N1,118

The UBA2037T/N1,118 is a Pulse-Width modulation (PWM) controller developed by Power Integrations, a leader in integrated circuit (IC) solutions for power applications. This device is designed to provide control, protection, and interface features for LED ballast applications. It operates as an LED driver to modulate LED current, power, and dimming via an integrated high-performance low-side driver. This feature-rich device provides excellent EMI suppression and robust protection against overload, short circuit, and over temperature conditions. The UBA2037T/N1,118 is housed in a 5x5x2mm² package and is rated at a maximum output power of 5W and output current of 2A. The device is compliant with IEC/EN61000-4-2 for ESD immunity.

The UBA2037T/N1,118 application field is Lighting, Ballast Controllers, which are primarily used in LED lighting systems. LED lighting offers energy savings by reducing energy consumption, longer life, and a more sustainable environment as compared to traditional lighting technologies. LED lighting systems require a device to deliver and control the power to the LEDs, and the UBA2037T/N1,118 is well-suited for this task. It features a dither-down PWM that helps to minimize audible noise while delivering precise, stable LED power output.

The operating principle of the UBA2037T/N1,118 can be described as follows. The PWM controller monitors the input voltage and adjusts the on-time of the output current accordingly. This ensures that the output can be set to the desired value and will remain stable despite changes in the input voltage. The device also features a soft-start feature which allows it to start up slowly and avoid over current conditions. Furthermore, the UBA2O37T/N1,118 includes an over-temperature protection feature, which automatically shuts the device off when it exceeds a specified temperature. This helps to avoid the device from overheating and damage from overcurrent conditions.

In conclusion, the UBA2037T/N1,118 is a highly reliable and feature rich PWM controller from Power Integrations. It is designed to provide precise and stable LED power output and efficient protection against overload, short circuit, and over temperature conditions. This device has an application field in Lighting, Ballast Controllers, and its operating principle is based on its ability to monitor the input voltage and adjust the output current accordingly. It also features a dither-down PWM which helps to minimize audible noise, soft-start to slow down the start-up process, and over-temperature protection.