T6316B Taiwan Memory Technology, T6316B Datasheet

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T6316B

Manufacturer Part Number
T6316B
Description
Constant-Current White LED Bias Supply
Manufacturer
Taiwan Memory Technology
Datasheet
www.DataSheet4U.com
tm
FEATURES
• Up to 400mA LED Bias Current
• 3% LED Current Matching
• Simple LED Brightness Control
• Low 0.05uA Shutdown Current
• 2.7V to 5V Supply Voltage Range
• SOP-8 Package and L
• VSET Resistor Option :
• Build in Thermat Protect 160
Applications
• Portable Communication Devices
• Handheld Electronics
• LED/Display Back Light Driver
• Lightings
TM Technology Inc. reserves the right
to change products or specifications without notice.
T6316A : External Resistor
T6316B : 20, 85, 100, 125, 150, 175, 200,
250, 300 and 350mA Output
Resistor
CH
TE
Current Option by Internal
ead-free
C
P. 1
T6316A-D
T6316A-DG
T6316B-20D
T6316B-20DG
T6316B-75D
T6316B-75DG
T6316B-350D
T6316B-350DG
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
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
improved
available in SOP-8 package and lead-free.
PART NUMBER EXAMPLES
PART NO.
in
Low-Dropout, Constant-Current
for
some
efficiency.
Preliminary T6316A/B
four LED. The T6316A/B
PACKAGE
lead-free
lead-free
lead-free
lead-free
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
applications,
White LED Bias Supply
Publication Date: JUN. 2006
The
Output
Current
350mA
350mA
20mA
20mA
75mA
75mA
-
-
T6316A/B
significantly
Revision: B
External
External
resistor
Internal
Internal
Internal
Internal
Internal
Internal
Vset
is

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T6316B Summary of contents

Page 1

... Low 0.05uA Shutdown Current • 2. Supply Voltage Range • SOP-8 Package and L • 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 Applications • ...

Page 2

... www.DataSheet4U.com SOP-8 T6316A SOP-8 T6316B-D PIN DESCRIPTION T6316A T6316B SYMBOL LED1 1 LED2 2 LED3 3 LED4 4 VSS 5 VDD VSET 8 TM Technology Inc. reserves the right to change products or specifications without notice. ...

Page 3

... Preliminary T6316A/B Value Unit V -0 - 300 C LEAD T -65 to +150 Min. Typ. Max Unit 2 1400 1600 uA T6316A 270 A/A T6316B 250 0.306 350 400 mA = 3.3V, 0. 2.0 V 0.8 V 160 C Publication Date: JUN. 2006 Revision: B ...

Page 4

... LED designs. The T6316A uses a single resistor to set the bias current for up to four LEDs. LED bias currents are matched to 3%. The T6316B build in internal resistor to set the bias current for four LED. The T6316A/B offers several advantages over using ballast resistors, such www ...

Page 5

TE CH TYPICAL APPLICATION CIRCUITS www.DataSheet4U.com Technology Inc. reserves the right to change products or specifications without notice ...

Page 6

TE CH PACKAGE DIMENSIONS 8-LEAD SOP www.DataSheet4U.com Dimension in mm Symbol Min. A 5. ...

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