|Information||Two-Step LED Current Controller with Line Regulation Compensation|
|More details||For more information please contact support|
|Features||2-step integrated driver, Better thermal performance, Built in thermal foldback and VIN pin clamp|
|Max Voltage (V)||78|
|IOUT MAX (mA)||180|
|Power Line Regulation||Y|
|Application||downlight, high bay, specialty, architectural|
The XR46203 is a two-step LED current controller with line regulation compensation for operating over a wide alternating current (AC) voltage source range. It can drive an external N-channel power MOSFET to regulate the current flowing through a high voltage (HV) LED string.
The XR46203 works as a constant current sink with linear-type overvoltage protection (OVP), linear-type over temperature protection (OTP), and line regulation compensation. It is suitable for applications with a rectified AC voltage source.
The PCB design can be very compact to meet various shape requirements. The XR46203 is especially suitable for replacing incandescent light bulbs and linear-type fluorescent lamps.
- Two current step control from a single device
- Excellent system power regulation over the AC line variation range
- 6V to 78V chip supply voltage range
- Over temperature protection
- Overvoltage protection
- DFN 3 x 3-8L package
- Single board LED lighting solution
- All solid state components
- No electrolytic capacitor or MOV required
- Scalable architecture allows optimization of
- performance vs. cost
- Driver-on-board and chip-on-board design solutions available which minimize process flow and assembly cost
- High PF and low THD performance
- Flexible PCB layout options
- TRIAC dimmable
- LED Lighting Applications
- High bay
Documentation & Design Tools
|Product Brochures||Power Management Brochure||October 2020||2.4 MB|
|Product Briefs||XR46203 Product Brief||October 2016||98.5 KB|
Quality & RoHS
Parts & Purchasing
|Part Number||Pkg Code||Status||Suggested Replacement||PDN|
|XR46203IHBTR||TDFN8 3x3||OBS||XR46110IHBTR + XR46084EHTR-ADJ or XR46110IHBTR + XR46084ESFTR-ADJ|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
FAQs & Support
Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.
Submit a Technical Support Question As a New Question
In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link. A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:
Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:
And then Product Change Notifications:
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.