Description
The XR46050 is a two-step LED current controller for bulb applications powered directly by an alternative current (AC) voltage source. It can drive an external N-channel power MOSFET to regulate the current flowing through a high voltage (HV) LED string.
The XR46050 works as a constant current regulator to control two-step current levels for AC step drivers with a simple structure. It also provides linear-type over temperature protection (OTP).
The PCB design can be very compact to meet various shape requirements. It is especially suitable for replacing “A” series LED light bulbs and candelabra LED bulbs.
Features
- Device
- 6V to 78V chip supply voltage range
- Over temperature protection
- Single board LED lighting solution available
- DFN 2 x 2-6L packages
- System
- All solid state components
- No electrolytic capacitor required
- Fewer components and simple solution for LED lighting
- Scalable architecture allows optimization of
- performance vs. cost
- Driver-on-board and chip-on-board design solution available which minimizes process flow and assembly cost
- High PF and Low THD performance
- Flexible PCB layout options
Documentation
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Datasheet
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Product Brief
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Product Brochure
Application
- LED Lighting Applications
- Downlight
- High bay
- Specialty
- Architectural
Design Tools
Packaging
Parts & Purchasing
| Part Number | Pkg Code | RoHS | Min Temp | Max Temp | Status | Buy Now | Order Samples |
|---|---|---|---|---|---|---|---|
| XR46050IHBTR | -40 | 85 | Active | Order |
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.
Quality Documents
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.