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SP5324AF
This is a high-performance LED lighting converter circuit with a non-isolated buck single-stage PFC, built-in 550V high-voltage MOSFET, featuring very few external components, simple design, high power factor, and high constant current accuracy.
- Product Description
-
- Commodity name: SP5324AF
- 封装: SOP8
- 品牌: Wuxi Silicon Power Microelectronics
This is a high-performance LED lighting converter circuit with a non-isolated buck single-stage PFC, built-in 550V high-voltage MOSFET, featuring very few external components, simple design, high power factor, and high constant current accuracy.
The SP5324AF is a high-performance LED lighting converter circuit with a non-isolated buck-type single-stage PFC, featuring a built-in 550V high-voltage MOSFET. It boasts advantages such as minimal external components, simple design, high power factor, and high current regulation accuracy. It uses a quasi-resonant on-time control method to improve conversion efficiency. The external application uses a floating ground architecture to achieve full-cycle sampling of the inductor current, resulting in extremely high current regulation accuracy.
Typical Application Diagram
Functions
● Active Power Factor Correction, high PF value, low THD
● Built-in 550V high-voltage MOSFET, simplifying external application design
● Up to 95% system efficiency
● ±3% LED output current regulation accuracy
● Excellent line voltage regulation and load regulation
● Inductor current critical conduction mode
● Ultra-low start-up current (35uA) and operating current (380uA)
● LED short-circuit/open-circuit protection
● Current sampling resistor open-circuit protection
● Cycle-by-cycle current limiting protection
● Chip undervoltage protection
● Auto-restart function
● Over-temperature regulation function
Applications
● LED lighting
● Bulbs
● Tubes
● PAR lamps
Product Message
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