XR46110 Product Brief
LED Current Controller
with Line Regulation Compensation
Description
The XR46110 is an LED current controller with line regulation
compensation for operating over a wide alternative 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 application of the XR46110 is configured 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
bulb and linear type fluorescent lamps.
Typical Application
+
–
VAC
LEDS1
K
MS2
MS1
U1
XR46084
A
NC
CS
BD
RA2
RIN2
U2
XR46084
VIN
RB
CLR
APPLICATIONS
■■ LED Lighting Applications
Downlight
High bay
Specialty
Architectural
LEDS2
R1
Pin Configuration
LEDS3
A
NC
CS
RIN1
K
MS2
MS1
RA1
FEATURES
■■ Device
6V to 78V chip supply voltage range
Excellent system power regulation in
±10% AC mains fluctuation
Over temperature protection
Overvoltage protection
Single board LED lighting solution
available
2mm x 2mm TDFN-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
GATE
VL
NC
GND
CS
U3
XR46110
RG
R2
Q1
XR46000
VIN
1
6
GATE
VL
2
5
NC
GND
3
4
CS
2mm x 2mm TDFN-6
R3
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XR46110 Product Brief
Ordering Information(1)
Part Number
XR46110IHBTR
Operating
Temperature Range
Lead-Free
Package
Packaging Method
-40°C ≤TJ ≤ 125°C
Yes(2)
TDFN6 2x2
Tape and reel
NOTE:
1. Refer to www.exar.com/XR46110 for most up-to-date Ordering Information.
2. Visit www.exar.com for additional information on Environmental Rating.
Please contact LEDtechsupport@exar.com to request a complete datasheet.
www.exar.com
48720 Kato Road
Fremont, CA 94538
USA
Tel.: +1 (510) 668-7000
Fax: +1 (510) 668-7001
Email: LEDtechsupport@exar.com
Exar Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. Exar Corporation conveys
no license under any patent or other right and makes no representation that the circuits are free of patent infringement. While the information in this publication has been
carefully checked, no responsibility, however, is assumed for inaccuracies.
Exar Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected
to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Exar Corporation
receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of
Exar Corporation is adequately protected under the circumstances.
Reproduction, in part or whole, without the prior written consent of Exar Corporation is prohibited. Exar, XR and the XR logo are registered trademarks of Exar Corporation.
All other trademarks are the property of their respective owners.
©2016-2016 Exar Corporation
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