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PDF T6316A Data sheet ( Hoja de datos )
| Número de pieza | T6316A | |
| Descripción | Constant-Current White LED Bias Supply | |
| Fabricantes | Taiwan Memory Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de T6316A (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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tm TE
CH
FEATURES
• Up to 400mA LED Bias Current
• 3% LED Current Matching
• Simple LED Brightness Control
www.DataSheet•4UL.coowm 0.05uA Shutdown Current
• 2.7V to 5V Supply Voltage Range
• SOP-8 Package and Lead-free
• VSET Resistor Option :
T6316A : External Resistor
T6316B : 20, 85, 100, 125, 150, 175, 200,
250, 300 and 350mA Output
Current Option by Internal
Resistor
• Build in Thermat Protect 160 °C
Preliminary T6316A/B
Low-Dropout, Constant-Current
White LED Bias Supply
GENERAL DESCRIPTION
The T6316A/B low-dropout bias supply for
white LEDs is a high-performance alternative
to the simple ballast resistors used in
conventional white LED designs. The T6316A
uses a single resistor to set the bias current for
four LEDs, which are matched to 3%. The
T6316B build in internal resistor to set the bias
current for four LED. The T6316A/B
advantages over ballast resistors include
significantly better LED to LED bias matching,
much lower bias variation with supply voltage
variation, significantly lower dropout voltage,
and in some applications, significantly
improved efficiency. The T6316A/B is
available in SOP-8 package and lead-free.
Applications
• Portable Communication Devices
• Handheld Electronics
• LED/Display Back Light Driver
• Lightings
PART NUMBER EXAMPLES
PART NO.
T6316A-D
T6316A-DG
T6316B-20D
T6316B-20DG
T6316B-75D
T6316B-75DG
Output
PACKAGE Current
SOP-8
-
SOP-8
lead-free
-
SOP-8 20mA
SOP-8
lead-free
20mA
SOP-8 75mA
SOP-8
lead-free
75mA
Vset
resistor
External
External
Internal
Internal
Internal
Internal
T6316B-350D SOP-8 350mA Internal
T6316B-350DG
SOP-8
lead-free
350mA
Internal
TM Technology Inc. reserves the right
P. 1
to change products or specifications without notice.
Publication Date: JUN. 2006
Revision: B
1 page  
tm TE
CH
TYPICAL APPLICATION CIRCUITS
Preliminary T6316A/B
V+
www.DataSheet4U.com
VDD
ON
O FF
VDD
EN
LED1 LED2 LED3
T 6316A
LED 4
SET
GND
R
V+
VDD
ON
O FF
VDD
EN
LED1 LED2 LED3
T 6316B
LED 4
GND
Very low-cost, high-efficiency solution
TM Technology Inc. reserves the right
P. 5
to change products or specifications without notice.
Publication Date: JUN. 2006
Revision: B
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet T6316A.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| T6316A | Constant-Current White LED Bias Supply | Taiwan Memory Technology |
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