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YB1520ST25
YB1520ST25 - Brand New YOBON 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
Description
The YB1520 is a step-up DC-DC converter; operates as current source to drive
up to 18 white LEDs in parallel/series configuration. Series connecting of the
LEDs provides identical LED currents resulting in uniform brightness and
eliminating the need for ballast resistors. The light intensity of these LEDs
is proportional to the current passing through them. The YB1520 switches at a
fixed frequency of 700KHz, allowing the use of tiny, low profile inductors and
capacitors to minimize footprint and cost in space consideration applications
for cellular phone backlighting or other hand held equipment.
The YB1520 can drive up to 18 white LEDs from a 4.5V supply. The wide input
voltage range from 2.7V to 7V is ideal for portable (5V) applications with
higher conversion efficiency. To control LED brightness, the LED current can
be pulsed by applying a PWM (pulse width modulated) signal with a frequency
range of 100Hz to 50KHz to the CTRL pin.
YB1520 has integrated Over Voltage Protection that prevents damage to the
device in case of a high impedance output due to faulty LED or open circuit
caused by abnormal conditions.
Features
■ Built-in Internal Switch
■ 2.7V to 7V Input Range
■ <1uA Shutdown Current
■ High Efficiency
■ Drives up to 3S2P to 3S6P White LEDs (VIN at 3.5V to 5V)
■ Over Voltage Protection 30V
■ Small 5-Lead SOT-23 Package
Applications
■ LCD Display Module
■ White LED Backlighting
■ PDAs, GPS terminals
■ Digital Cameras
■ Cellular Phone
■ Electronic Books
■ Portable Applications
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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