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L6668-LF
L6668-LF - Brand New STMicroelectronics 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
L6668 is a current-mode primary controller IC, designed to build single-ended
converters.
The IC drives the system at fixed frequency at heavy load and an improved
Standby function causes a smooth frequency reduction as the load is
progressively reduced. At very light load the device enters a special
operating mode (burst-mode with fixed, externally programmed peak current)
that, in addition to the on-board high-voltage start-up and the very low
quiescent current, helps keep low the consumption from the mains and be
compliant with energy saving regulations. To allow meeting compliance with
these standards in power-factor-corrected systems too, an interface with the
PFC controller is provided that enables to turn off the pre-regulator when the
load level falls below a threshold.
General Features
■ MULTIPOWER BCD TECHNOLOGY
■ LOAD-DEPENDENT CURRENT-MODE CONTROL: FIXED-FREQUENCY (HEAVY LOAD), FREQUENCY
FOLDBACK (LIGHT LOAD), BURST-MODE (NO-LOAD)
■ ON-BOARD HIGH-VOLTAGE START-UP
■ IMPROVED STANDBY FUNCTION
■ LOW QUIESCENT CURRENT (< 2 mA)
■ SLOPE COMPENSATION
■ PULSE-BY-PULSE & HICCUP-MODE OCP
■ INTERFACE WITH PFC CONTROLLER
■ DISABLE FUNCTION (ON/OFF CONTROL)
■ LATCHED DISABLE FOR OVP/OTP FUNCTION
■ PROGRAMMABLE SOFT-START
■ 2% PRECISION REFERENCE VOLTAGE EXTERNALLY AVAILABLE
■ ±800 mA TOTEM POLE GATE DRIVER WITH INTERNAL CLAMP AND UVLO PULL-DOWN
■ BLUE ANGEL, ENERGY STAR, EU CODE OF CONDUCT COMPLIANT
■ SO16 PACKAGE ECOPACK®
APPLICATIONS
■ HI-END AC-DC ADAPTERS/CHARGERS FOR NOTEBOOKS.
■ LCD/CRT MONITORS, LCD/CRT TV
■ DIGITAL CONSUMER
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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