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RT9052 Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part # RT9052
Description  Single Channel LED Current Source Controller
PDF  9 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9052 Datasheet(HTML) 1 Page - Richtek Technology Corporation

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RT9052
1
DS9052-01 April 2011
www.richtek.com
Ordering Information
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
Applications
LED Backlight applications
Current Source
Transistor Driver
SOT-23-6
Single Channel LED Current Source Controller
General Description
The RT9052 is a low cost, single channel LED current
source controller with a specific FAULT detector. The part
can drive an external NPN-BJT for various applications.
The RT9052 is operated with Vcc power ranging from 3.8V
to 13.5V. With such a topology, it's very flexible and cost
effective.
The RT9052 comes in a small SOT-23-6 package.
Features
3.8V to 13.5V Operation Voltage
Voltage Reference 0.8V with
±±±±±2% High Accuracy
FAULT Indicator with Delay
Dimming Control by PWM
Small Footprint Package SOT-23-6
RoHS Compliant and Halogen Free
Marking Information
EU=DNN
EU= : Product Code
DNN : Date Code
Typical Application Circuit
DIM GND ISET
VCC DRI
4
23
5
6
FAULT
DRI
ISET
GND
VCC
DIM
5
3
2
6
4
1
WLED
RISET
5V
12V
1µF
VLED
RT9052
RB
CIN
100k
R1
FAULT
Package Type
E : SOT-23-6
RT9052
Lead Plating System
G : Green (Halogen Free and Pb Free)


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