L4981AD AC-DC Converters by STMicroelectronics
L4981A: Fixed Frequency Average Current Mode; L4981B: Line Modulated Frequency Average Current Mode
| Status: | Active |
|---|---|
| Series: | L4981 |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$2.12
| Distributor | Stock | ||
|---|---|---|---|
|
RS
from US$3.24
|
1,003
in stock
|
Buy Now |
|
TME
from US$2.65
|
30
in stock
|
Buy Now |
|
Avnet Silica
-
|
2,120
in stock
|
Buy Now |
|
Future Electronics
from US$2.29
|
0
in stock
|
Buy Now |
|
Avnet America
from US$2.12
|
0
in stock
|
Buy Now |
|
|
RS Americas
from US$5.56
|
0
in stock
|
Buy Now |
|
Buerklin
from US$2.52
|
0
in stock
|
Buy Now |
|
Newark Electronics
-
|
0
in stock
|
Buy Now |
|
EBV Elektronik
-
|
0
in stock
|
Buy Now |
| Buy Now |
Features
| PRECISE 2% ON CHIP REFERENCE EXTERNALLY AVAILABLE |
| OVERVOLTAGE, OVERCURRENT PROTECTION |
| SOFT START |
| LOW START-UP CURRENT (0.3mA TYP.) |
| HIGH CURRENT BIPOLAR AND DMOS TOTEM POLE OUTPUT |
| CONTROL BOOST PWM UP TO 0.99P.F. |
| UNIVERSAL INPUT MAINS |
| LIMIT LINE CURRENT DISTORTION TO < 5% |
| AVERAGE CURRENT MODE PWM FOR MINIMUM NOISE SENSITIVITY |
| UNDER VOLTAGE LOCKOUT WITH HYSTERESIS AND PROGRAMMABLE TURN ON THRESHOLD |
| FEED FORWARD LINE AND LOAD REGULATION |
Last 6 months Inventory & Pricing History
Resources
Product Specifications |
|---|
| DS0071 Power factor corrector |
Presentations |
|---|
| Power Factor Corrector controllers portfolio |
Alternative Descriptions
| STMicroelectronics L4981AD | RS |
| IC: driver | TME |
| Power Factor Correction PWM CONTRLR 0.3mA 115KHz 20-Pin SO Tube | Avnet Silica |
| L4981 Series 19.5 V 16 mA Surface Mount Power Factor Corrector - SOIC-20 | Future Electronics |
| L4981AD, POWER FACTOR CONTROLLER, 115 KHZ, 19.5 V, 20-PIN SOIC | RS Americas |
| I.C. L4981AD, L4981AD | Buerklin |
| Power Factor Corrector, 19.5V, Soic-20 | Newark Electronics |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a L4981AD?
Additional datasheets, footprints and schematics for L4981AD are listed on our Part Details page. You can also find images and similar parts to L4981AD on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for L4981AD on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L4981AD price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does L4981AD fall under?
The L4981AD is listed under Power Management > AC-DC Converters > PFC Controllers.
Can I view similar or alternative parts?
You can view similar parts to L4981AD when available in the PFC Controllers range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the L4981AD you can contact the distributor directly for product support, shipping queries etc.
Is the L4981AD RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.
Which authorised distributors for L4981AD have stock available?
Authorised distributors including RS, TME, Avnet Silica, Future Electronics and Avnet America have stock available or on a lead time for L4981AD.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for L4981AD often in real-time on the comparison pages.
What if I can't find stock of L4981AD?
You can fill out our help required form which you can use to request a quote for L4981AD from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.