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Description
Wisair531 is a highly integrated, high-performance current mode PWM controller chip that is designed for power adapters and other small and medium-power switch power supplies. It features a pulse mode (Burst Mode) function that reduces standby power consumption and meets higher standards of environmental protection. The chip has very low starting current and operating current, which helps improve power conversion efficiency.
Specifications and features
- Burst Mode function
- Low startup current (6.5uA)
- Low operating current (2.3mA)
- Built-edge blanking
- Built-in synchronized slope compensation
- Current mode
- External Programmable PWM Switching Frequency
- By-cycle current limit protection (OCP)
- VDD over-voltage clamping protection
- Low voltage shut down function (UVLO)
- Gate Drive Output Voltage Clamp (18V)
- Frequency jitter feature
- Constant output power limit
- Overload protection (OLP)
- Work does not produce audio noise
Application Scenarios
The Wisair531 chip is suitable for various applications including offline AC/DC flyback converters for power adaptors, open-frame SMPS, battery chargers, and set-top box power supplies.
Comparison
Advantages- Highly integrated and high-performance
- Burst Mode function reduces standby power consumption
- Low starting current and operating current for improved power conversion efficiency
- Provides various protection features
DisadvantagesNo specific disadvantages identified.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
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Additional Information
- Datasheet: Download Wisair531
- Chipdatas Part: CD88-Wisair531
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 15:51 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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Payment Method
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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