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參數資料
| 型號： | T6311A-X |
| 廠商： | TM Technology, Inc. |
| 英文描述： | Low-Dropout, Constant-Current White LED Bias Supply |
| 中文描述： | 低壓差，恒流白光LED偏置電源 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 56K |
| 代理商： | T6311A-X |
TE
CH
tm
Preliminary Product spec. T6311A
TM Technology Inc. reserves the right
P. 1
to change products or specifications without notice.
Publication Date: JUN. 2005
Revision: C
Low-Dropout, Constant-Current
White LED Bias Supply
FEATURES
Low 200mV Dropout at 9mA
Up to 150mA LED Bias Current
0.3% LED Current Matching
Simple LED Brightness Control
Low 40uA Supply Current
Low 0.05uA Shutdown Current
2.5V to 5.5V Supply Voltage Range
SOP-8 and SOT23-6 Package
Output channel :
SOP-8 package for four channel
SOT23-6 package for three channel
Applications
Cellular Phones
Portable Communication Devices
Handheld Electronics
Digital Cameras
PDAs
LED/Display Back Light Driver
LEDs for Camera Flash
PART NUMBER EXAMPLES
GRNERAL DESCRIPTION
The T6311A low-dropout bias supply for
white LEDs is a high-performance alternative
to the simple ballast resistors used in
conventional white LED designs. The T6311A
uses a single resistor to set the bias current for
four LEDs, which are matched to 0.3%. The
T6311A consumes only 40uA of supply
current when enabled and 0.05uA when
disabled. The T6311A advantages over ballast
resistors include significantly better LED to
LED bias matching, much lower bias variation
with supply voltage variation, significantly
lower
dropout
voltage,
applications, significantly improved efficiency.
The T6311A requires a 200mV dropout at a
9mA load on each output to match the LED
brightness. The T6311A is available in SOP-8
and SOT23-6 package.
and
in
some
PART NO.
PACKAGE
T6311A-D
T6311A-X
SOP-8
SOT23-6
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相關代理商/技術參數 |
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| T6313A-BF | 制造商:TMT 制造商全稱:TMT 功能描述:Low Noise, High Efficiency WhiteLED Charge Pump |
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| T6316A-D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Dropout, Constant-Current White LED Bias Supply |
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