The BP2338H is a high-precision primary-side regulated flyback power switch manufactured by Bright Power Semiconductor Co., Ltd. It's designed for use in LED lighting applications and other low-power applications.

Applications

• LED lighting drivers
• Power adapters
• Battery chargers
• Standby power supplies
• Low-power AC-DC converters

Features

• Primary-side regulation (PSR)
• High precision constant current (CC) and constant voltage (CV) control
• Built-in high voltage MOSFET
• Low startup current
• Short-circuit protection (SCP)
• Overvoltage protection (OVP)
• Overtemperature protection (OTP)
• Open-loop protection
• Frequency jittering for improved EMI performance

Benefits

• Simplified design and reduced BOM cost due to primary-side regulation, eliminating the need for secondary-side feedback components.
• High efficiency and low power consumption, leading to energy savings.
• Robust protection features enhance system reliability.
• Excellent EMI performance reduces the need for external filtering.
• High precision CC/CV control ensures stable and accurate output regulation.

Additional Details

The BP2338H utilizes primary-side regulation, which simplifies the design of power supplies by eliminating the need for optocouplers and other secondary-side feedback components. This reduces the BOM cost and improves the overall reliability of the system. The built-in high voltage MOSFET further reduces the component count. The high precision CC/CV control ensures that the output voltage and current are accurately regulated, even under varying input voltage and load conditions. The integrated protection features, such as SCP, OVP, and OTP, protect the device and the load from damage in the event of a fault condition. The frequency jittering technique helps to improve the EMI performance of the power supply, reducing the need for external filtering. The BP2338H is optimized for LED lighting applications, but it can also be used in a variety of other low-power applications. The datasheet provides full technical specifications regarding voltage, current, and recommended operating conditions.