LED Current Controller with Line Regulation Compensation
Data Sheets OBS (Obsolete)


Steps 1
Max Voltage (V) 78
IOUT MAX (mA) 180
Power Line Regulation Y
Dimmable Y; Triac
Application downlight, high bay, specialty, architectural
Package DFN-6
Features 1-step driver, Improved line regulation, Built in thermal foldback and VIN pin clamp
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The XR46110 is an 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 XR46110 is used in series with an LED string, working 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. It is especially suitable for replacing incandescent light bulbs and linear-type fluorescent lamps.

  • Device
    • 6V to 78V chip supply voltage range
    • Excellent system power regulation with ±10% AC line fluctuation
    • Over temperature protection
    • Overvoltage protection
    • Single-board LED lighting solution
    • DFN 2 x 2-6L package
  • System
    • All solid state components
    • No electrolytic capacitor required
    • Scalable architecture allows optimization of performance vs. cost
    • Driver-on-board and chip-on-board design solution available which minimize process flow and assembly cost
    • High PF and low THD performance
    • Flexible PCB layout options

  • LED Lighting Applications
    • Downlight
    • High bay
    • Specialty
    • Architectural

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XR46110 LED Current Controller with Line Regulation Compensation 1C August 2018 356.9 KB
Product Brochures Power Management Brochure October 2020 2.4 MB
Product Briefs XR46110 Product Brief October 2016 96.8 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XR46110IHBTR N Y Y Y Y L1 / 260ᵒC TDFN6 2x2

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement PDN
XR46110IHBTR TDFN6 2x2 -40 125 OBS
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Part Status Legend
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.


Pkg Code Details Quantities Dimensions PDF
TDFN6 2x2
  • JEDEC Reference: MO-229
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 81ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 180 x 8 x 4
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 2.00
  • Width: 2.00
  • Thickness: 0.8
  • Lead Pitch: 0.65


Distribution Date Description File
08/30/2022 Product Discontinuation Notice
08/23/2017 - Add room limits on power line regulation numbers. - Clarified operating junction temperature range; eliminate temperature ambient specifications. - Include ESD immunity ratings.

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