STMicroelectronics Product Overview: BUL804
The BUL804 from STMicroelectronics is a high voltage fast-switching NPN power transistor designed to offer a blend of performance and reliability for a range of electronic applications. This component is particularly well-suited for use in lighting applications, switch-mode power supplies, and as a pass element in PWM regulators due to its robust construction and electrical characteristics.
Key Features
- High Voltage Capability: The BUL804 is capable of withstanding voltages up to 800V, making it suitable for mains operations and high voltage circuits.
- High Switching Speed: With its fast switching speed, this transistor is ideal for high-frequency operations, contributing to the efficiency of the overall system.
- Low Saturation Voltage: The device has been optimized to achieve low saturation voltage, which minimizes on-state losses and improves thermal performance.
Applications
The versatility of the BUL804 allows it to be utilized in a wide array of applications. Some of the primary uses include:
- Electronic Ballasts for Fluorescent Lighting
- Switch-Mode Power Supplies (SMPS)
- PWM Regulators as a Pass Element
- High Voltage Switching Circuits
Reliability and Safety
STMicroelectronics has a reputation for producing components that are not only high-performing but also reliable and safe. The BUL804 is no exception, with built-in safety features that ensure stable operation under a variety of conditions. This transistor is also compliant with RoHS and other environmental standards, reflecting STMicroelectronics' commitment to environmental sustainability.
Technical Specifications
Parameter
Value
Collector-Emitter Voltage (V<sub>CEO)
800V
Collector Current (I<sub>C)
4A
Power Dissipation (P<sub>D)
125W
Switching Speed
Fast
Saturation Voltage
Low
In conclusion, the BUL804 from STMicroelectronics is a robust and reliable component that offers a combination of high voltage capability, fast switching, and low saturation voltage, making it an excellent choice for designers looking to enhance the performance and efficiency of their high voltage applications.