XR46050IHBTR [EXAR]
LED Driver,;
| 型号： | XR46050IHBTR |
| 厂家： | 
EXAR CORPORATION |
| 描述： | LED Driver, 驱动 光电二极管 接口集成电路 |
| 文件： | 总2页 (文件大小：137K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XR46050 Product Brief
Two-Step LED Current Controller
Description
FEATURES
Device
The XR46050 is a two-step LED current controller for bulb application
powered by an alternative current (AC) voltage source directly. It can
drive an external N-channel power MOSFET to regulate the current
flowing through a High Voltage (HV) LED string.
ꢀ■
6V to 76V chip supply voltage range
Over temperature protection
Single board LED lighting
solution available
The XR46050 works as a constant current regulator to control
two-step current levels for AC step driver with simplest structure.
It also provides linear type Over Temperature Protection (OTP).
2mm x 2mm TDFN-6 package
System
ꢀ■
All solid state components
No electrolytic capacitor required
Fewer component counts 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
minimize process flow and
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.
assembly cost
High PF and Low THD performance
Flexible PCB layout options
APPLICATIONS
ꢀ■
A series LED bulbs
Candelabra LED bulbs
AC LED lighting engines
Typical Application
ꢀ■
ꢀ■
I
LED
+
V
AC
Pin Configuration
LEDS1
BD
VIN 1
NC 2
6 GATE
5 SOURCE
4 CS
R
IN
Q1 (NMOS)
XR46000
GND 3
VIN
GATE
XR46050
NC
SOURCE
LEDS2
2mm x 2mm TDFN-6
GND
CS
R1
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XR46050 Product Brief
Ordering Information(1)
Operating
Temperature Range
Part Number
Lead-Free
Yes(2)
Package
Packaging Method
Tape and reel
XR46050IHBTR
-40°C to 85°C
TDFN6 2x2
NOTE:
1. Refer to www.exar.com/XR46050 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
48760 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 Exar Corporation
XR46050_PB_102116
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