L6565D AC-DC Converters by STMicroelectronics

Quasi-resonant Controller


The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on. Converter's power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant. The IC includes also a disable function, an on-chip filter on current sense, an error amplifier with a precise reference voltage for primary regulation and an effective two-level overcurrent protection.

Where to Buy

Prices starting from US$0.44

Distributor Stock
Logo for RS
RS
from US$0.70
No stock
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Logo for Newark Electronics
Newark Electronics
from US$0.50
9,963
in stock
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Logo for element14
element14
from US$0.51
9,963
in stock
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Logo for Farnell
Farnell
from US$0.49
9,963
in stock
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Logo for Future Electronics
Future Electronics
from US$0.44
3,800
in stock
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Logo for Chip One Stop
Chip One Stop
from US$0.55
2,000
in stock
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Logo for Transfer Multisort Elektronik
Transfer Multisort Elektronik
from US$0.72
395
in stock
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Logo for Avnet Silica
Avnet Silica
-
3,200
in stock
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Logo for EBV Elektronik
EBV Elektronik
-
1,100
in stock
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Logo for Avnet America
Avnet America
from US$0.47
-
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Logo for Distrelec
Distrelec
from US$1.21
-
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Features

TV/MONITOR SMPS
BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT
DIGITAL CONSUMER
AC-DC ADAPTERS/CHARGERS
PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS
1% PRECISION (@ Tj = 25ËšC) INTERNAL REFERENCE VOLTAGE
DISABLE FUNCTION (ON/OFF CONTROL)
QUASI-RESONANT (QR) ZERO-VOLTAGE-SWITCHING (ZVS) TOPOLOGY
FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY
LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE
ULTRA-LOW START-UP (< 70µA) AND QUIESCENT CURRENT (< 3.5mA)
±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN
PULSE-BY-PULSE & HICCUP-MODE OCP

Resources






Alternative Descriptions

Pwm Controller, 12V, Soic-8 | Newark Electronics
SMPS CONTROLLER, 6565, SOIC8 | element14
L6565 Series 13.5 V Flyback Isolated Current Limiting Offline Switch IC SOIC-8 | Future Electronics
IC: driver | Transfer Multisort Elektronik
Current Mode PWM Controller 400mA 8-Pin SO N Tube | Avnet Silica
Current Mode PWM Controller 400mA | RS
ST SMPS Controller, SO-8, Tube, 400mA, 18V | Distrelec


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L6565D?

Additional datasheets, footprints and schematics for L6565D are listed on our Part Details page. You can also find images and similar parts to L6565D on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L6565D on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L6565D price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L6565D fall under?

The L6565D is listed under Power Management > AC-DC Converters > PWM Controllers.

Can I view similar or alternative parts?

You can view similar parts to L6565D when available in the PWM 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 L6565D you can contact the distributor directly for product support, shipping queries etc.

Is the L6565D RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for L6565D have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Chip One Stop have stock available or on a lead time for L6565D.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for L6565D often in real-time on the comparison pages.

What if I can't find stock of L6565D?

You can fill out our help required form which you can use to request a quote for L6565D 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.

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