RT9301GJ8 Richtek USA Inc, RT9301GJ8 Datasheet

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RT9301GJ8

Manufacturer Part Number
RT9301GJ8
Description
IC LED DVR 3CH RGB TSOT23-8
Manufacturer
Richtek USA Inc
Datasheet

Specifications of RT9301GJ8

Internal Driver
Yes
Type - Primary
Backlight, Flash/Torch
Type - Secondary
RGB, White LED
Mounting Type
Surface Mount
Number Of Outputs
3
Voltage - Supply
2.8 V ~ 5.5 V
Package / Case
SOT-23-8 Thin, TSOT-23-8
Operating Temperature
-40°C ~ 85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Topology
-
Frequency
-
Voltage - Output
-
3-Channel Low Dropout RGB LED Driver
General Description
The RT9301 is a 3-Channel current source driver for RGB
LED. It is easy to be designed in applications that need
mixing RGB light source for multi-color output.
The RT9301 also provide users with great flexibility and
device performance. It uses externals resistor to set the
bias current for three LEDs, which are matched to
5%(max.). Users can adjust the output current from 2mA
to 50mA by setting the ISET resistor.
The RT9301 features very low dropout and under voltage
lockout protection. It is available in a space-saving
TSOT-23-8 and WDFN-8L 3x3 packages.
Ordering Information
Note :
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Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
DS9301-04 June 2009
RT9301
WDFN-8L 3x3 is in W-Type
Richtek Pb-free and Green products are :
}
}
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
ments of IPC/JEDEC J-STD-020.
Package Type
J8 : TSOT-23-8
QW : WDFN-8L 3x3 (Green Only)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Features
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Applications
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Pin Configurations
Input Voltage Range : 2.8V to 5.5V
Low 60/45mV Dropout at 20/15mA
Individual Current Setting by External Resistor
Individual On/Off Control by Baseband MPU
Up to 50mA LED Bias Current
Simple LED Brightness Control
5%(max.) LED Current Matching
Low 0.1uA Shutdown Current
UVLO Protection
RoHS Compliant and 100% Lead (Pb)-Free
Mobile phone, Smart Phone Multi-color LED Backlight
Camera Flash White LED
LCD Display Modules
Keypad Backlight
ISET1
ISET2
LED2
LED1
WDFN-8L 3x3
(TOP VIEW)
8
TSOT-23-8
1
2
3
4
7
2
GND
6
3
9
4
8
7
6
5
5
LED3
GND
VIN
ISET3
RT9301
www.richtek.com
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RT9301GJ8 Summary of contents

Page 1

Low Dropout RGB LED Driver General Description The RT9301 is a 3-Channel current source driver for RGB LED easy to be designed in applications that need mixing RGB light source for multi-color output. The RT9301 also provide ...

Page 2

RT9301 Typical Application Circuit GPIO GPIO (V) I LED 1.8 2.8 www.richtek.com 2 V BAT 1uF VIN R SET1 V ISET1 SET1 ON R SET2 V ISET2 SET2 R OFF SET3 V ISET3 SET3 Figure 1. Application circuit for RGB ...

Page 3

Function Block Diagram ISET1 ISET2 ISET3 Functional Pin Description Pin No. RT9301 J8 □ RT9301GQW Exposed Pad ( DS9301-04 June 2009 UVLO + - ...

Page 4

RT9301 Absolute Maximum Ratings Supply Input Voltage ------------------------------------------------------------------------------------------------ l LED1,2,3 Pin Voltage ----------------------------------------------------------------------------------------------- l Other I/O Pin Voltages ---------------------------------------------------------------------------------------------- l Power Dissipation TSOT-23-8 ------------------------------------------------------------------------------------------------------------- 0.382W WDFN-8L 3x3 --------------------------------------------------------------------------------------------------------- 0.926W Package Thermal ...

Page 5

Typical Operating Characteristics LED Current vs. Input Voltage 3.02V 3.06V LED1 15 LED3 2.5 3 3.5 Input Voltage (V) LED Current vs. Temperature 20 20mA ...

Page 6

RT9301 Applications Information The RT9301 is a 3-Channel current source driver for RGB LED or white LEDs. The output current can be controlled from 2mA to 50mA by adjusting the setting current from external easy to support a ...

Page 7

GPIO Control Figure 4 shows an application circuit for backlight with GPIO. The three setting resistors are connected to GPIO. The LED current can be controlled by GPIO directly. The RT9301 provides low dropout voltage and 5% maximum current matching. ...

Page 8

RT9301 1 0.9 0.8 0.7 WDFN-8L 3x3 0.6 0.5 0.4 TSOT-23-8 0.3 0.2 0 Ambient Temperature (°C) Figure 6. Derating Curves for RT9301 Packages Layout Consideration For best performance, careful PCB layout is necessary. Place all ...

Page 9

Outline Dimension Symbol DS9301-04 June 2009 Dimensions In Millimeters Min Max 0.700 1.000 0.000 0.100 1.397 1.803 0.220 0.380 2.591 3.000 2.692 3.099 0.585 ...

Page 10

RT9301 Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by ...

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