T6326A ETC-unknow, T6326A Datasheet

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T6326A

Manufacturer Part Number
T6326A
Description
Low-dropout, Constant-current White Led With Channel Control
Manufacturer
ETC-unknow
Datasheet
T6326A-AM
T6326A-BM
tm
FEATURES
• Up to 400mA LED Bias Current
• 3% LED Current Matching
• Simple LED Brightness Control
• Low 0.05uA Shutdown Current
• 3V to 5.5V Supply Voltage Range
• MSOP-10L Package
• Output channel :
• LED1~4 Channels ON / OFF states:
Applications
• Cellular Phones
• Portable Communication Devices
• Handheld Electronics
• Digital Cameras
• PDAs
• LED/Display Back Light Driver
• LEDs for Camera Flash
PART NUMBER EXAMPLES
TM Technology Inc. reserves the right
to change products or specifications without notice.
PART NO.
MSOP-10L package for four channel
T6326A-AM with 16 channel states
T6326A-BM with 5 channel states
• Build in Thermal Protect 140
CH
TE
PACKAGE
MSOP-10L
MSOP-10L
ON states
C
16
5
P. 1
GRNERAL DESCRIPTION
The T6326A low-dropout bias supply for
white LEDs is a high-performance alternative
to the simple ballast resistors used in
conventional white LED designs. The T6326A
with internal channel on/off select function.
The T6326A uses a single resistor to set the
bias current for four LEDs, which are matched
to 3%. The T6326A advantages over ballast
resistors include significantly better LED to
LED bias matching, much lower bias variation
with supply voltage variation, significantly
lower
applications, significantly improved efficiency.
The T6326A is available in MSOP-10L
package.
White LED with Channel Control
dropout
Low-Dropout, Constant-Current
Preliminary T6326A
voltage,
Publication Date: FEB. 2006
and
Revision: A
in
some

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T6326A Summary of contents

Page 1

... LED designs. The T6326A with internal channel on/off select function. The T6326A uses a single resistor to set the bias current for four LEDs, which are matched to 3%. The T6326A advantages over ballast resistors include significantly better LED to ...

Page 2

... SET. LED4 is high impedance when EN is low. VSS 6,7 Ground VDD 8 Power supply Enables T6326A signal, H: Ative Power Down . EN 9 CHSW 10 Set LED1~4 Channels ON / OFF, the rising edge of CHSW will change next states. TM Technology Inc. reserves the right to change products or specifications without notice. ...

Page 3

... Each LED LED1 LED2 LED3 LED4 EN=GND, T =+25 C, each LED A V >V for enable, VDD= <V for disable, VDD= P.3 Preliminary T6326A Symbol Value Unit V -0 - 300 C LEAD T -65 to +150 Min. Typ. Max Unit 3 5 ...

Page 4

... LED brightness may dim slightly at the end of battery life. The T6326A current regulating architecture and low dropout greatly minimize this effect compared to using simple ballast resistors. The enable function of the T6326A turns on and off the LEDs. P.4 Publication Date: FEB. 2006 Revision: A ...

Page 5

... Technology Inc. reserves the right to change products or specifications without notice Very low-cost, high-efficiency solution P.5 Preliminary T6326A Publication Date: FEB. 2006 Revision: A ...

Page 6

... Dimension in inch Max. Min. Typ 0.193 - - 0.118 - - 0.118 - - 0.019 1. 0.95 0.029 0.033 0.15 0.000 - 0.27 0.007 - 0.80 0.015 0.024 0.25 0.004 0.006 - - 0.067 REF - - 0.063 REF 0~8° P.6 Preliminary T6326A F E Max 0.043 0.037 0.006 0.010 0.031 0.010 - - Publication Date: FEB. 2006 Revision: A ...

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