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Wisair531
Wisair531 - Brand New WISAIR IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GERNERAL DESCRIPTION
WIS2269 is a highly integrated, high performance current mode PWM controller
chip. Apply to the power adapter and other small and medium-power switch power
supply.
In order to reduce standby power consumption to meet the higher standards of
environmental protection, the chip provides a pulse mode (Burst Mode)
function, very low starting current and operating current. Pulse mode that is
in the light load or no load conditions, WIS2269 can linearly decrease the
switching frequency chip, thereby reducing switching loss; by optimizing the
design, WIS2269 has a very low starting current and operating current, is not
only beneficial to start the circuit design, and the start circuit can be used
in high-value startup resistor, to reduce power consumption, improve power
conversion efficiency.
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
APPLICATIONS
Offline AC/DC flyback converter for
■ Power Adaptor
■ Open-frame SMPS
■ Battery Charger
■ Set-Top Box Power Supplies
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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