PN8370
High-voltage flyback controller with built-in 800V MOSFET for industrial and high-voltage applications up to 24W
Product Overview
Description
The PN8370 is a high-voltage flyback controller featuring a built-in 800V power MOSFET, making it ideal for industrial and high-voltage input applications. It supports output power up to 24W with universal input.
With its higher voltage rating, the PN8370 can handle input surge conditions and high-line applications with greater margin. The device includes all standard protections plus additional brown-in/brown-out protection.
The QR operation and frequency dithering help achieve high efficiency while meeting stringent EMI requirements common in industrial applications.
Product Series
PN
Primary Application
Industrial power supplies
Key Features
- High efficiency and reliability
- Optimized for industrial applications
- Comprehensive technical support
- Available from stock
Specifications
| Input Voltage | 85-265VAC |
|---|---|
| Output Power | 12-24W |
| MOSFET Voltage | 800V |
| Standby Power | <75mW |
| Operating Frequency | 65kHz |
| Package | SOP-7 |
Applications
Industrial power supplies
Industrial automation and control
Smart meter power supplies
Electronic system design
High-voltage auxiliary supplies
Electronic system design
Appliance power supplies
Electronic system design
FAE Expert Insights
"The PN8370's 800V MOSFET provides excellent margin for industrial applications where input surges and high-line conditions are common. I've used this device in smart meter and industrial control applications with great success. The additional brown-in/brown-out protection is valuable for grid-connected equipment. While slightly more expensive than 700V alternatives, the extra voltage margin can prevent field failures in harsh environments. Contact FAE for industrial application support."
I highly recommend the PN8370 for its proven reliability and excellent performance in real-world applications.
— Senior FAE Team, BeiLuo
Frequently Asked Questions
Why choose 800V MOSFET over 700V?
800V MOSFETs provide additional margin for input surge conditions (up to 300VAC transient), high-line operation, and voltage spikes from transformer leakage inductance. Essential for industrial and outdoor applications.
Choose 800V for industrial, outdoor, or high-surge environments.
What is brown-in/brown-out protection?
Brown-in protection prevents startup until input voltage reaches safe levels. Brown-out protection shuts down the converter if input voltage drops below minimum, preventing abnormal operation and potential damage.
Essential for grid-connected and industrial equipment.
Can PN8370 handle 277VAC input?
Yes, the 800V rating provides adequate margin for 277VAC nominal input (common in North American industrial applications) including surge conditions up to 300VAC. For detailed specifications and application support on chipown PN8370, refer to the datasheet or contact our team.
Ideal for 277VAC industrial applications.
What are the EMI considerations?
The PN8370 includes frequency dithering to spread EMI spectrum. Use proper input filtering, minimize primary switching loop area, and consider shielded transformers for the most demanding EMI requirements.
Contact FAE for EMI design review and optimization.
Is PN8370 suitable for outdoor applications?
Yes, with proper thermal design and protection from moisture, the PN8370 is suitable for outdoor applications. The high voltage rating provides margin for line transients common in outdoor installations.
Ensure proper enclosure and thermal management for outdoor use.