The XR46010 is an active load current regulator for phase-cut dimmable AC direct drive LED lamp systems. The active load circuit can provide the holding current for the TRIAC and also the charging current path of the R/C circuit in a dimmer. It can help to stabilize the TRIAC operation and increase the dimming range of the lamp system.
The XR46010 is configured to work in parallel with an LED string. It conducts the current when the LED string is in the “off” state, and stops conducting the current when the LED string is in the “on” state.
The active load circuit can be placed on the same board with the LED string or a separate board in front of the LED board. The design is very flexible to meet various shape requirements. It is especially suitable for LED light bulbs and tubes.
- 3V to 80V input operation range
- 250mV low current sense voltage
- Linear over temperature protection
- LED Lighting Applications
- High bay
Parts & Purchasing
|Part Number||Pkg Code||RoHS||Min Temp||Max Temp||Status||Buy Now||Order Samples|
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.
|07/11/2017||Product Discontinuation Notification||Product Discontinuation Notice 17-0623-02 r-1033.pdf|
|01/27/2017||Update of device and mask IDs due to IML to Exar technology transfer.||PCN 16-1251-01 Device-mask ID-1033.pdf|
|11/15/2016||Standard reel quantity will change from 2500 pieces to 3000 pieces.||PCN 16-0625-02 reel size-1033.pdf|
Frequently Asked Questions
In this example, we looked for XRA1201. When you hover over it, it will turn grey and you can click anywhere in the grey box. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted in yellow 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:
Another method to find out if a part is OBS or EOL is to click on SUPPORT:
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.