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TLC5928PWR датащи(PDF) 1 Page - Texas Instruments

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номер детали TLC5928PWR
подробное описание детали  16-Channel, Constant-Current LED Driver with LED Open Detection
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

TLC5928PWR датащи(HTML) 1 Page - Texas Instruments

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1
FEATURES
APPLICATIONS
DESCRIPTION
¼
¼
¼
SIN
SCLK
LAT
BLANK
SOUT
GND
VCC
TLC5928
IC1
OUT0
OUT15
VCC
¼
¼
VLED
VLED
¼
¼
SIN
SCLK
LAT
BLANK
R
IREF
IREF
SOUT
TLC5928
ICn
OUT0
OUT15
DATA
SCLK
BLANK
ERROR
READ
¼
VLED
VLED
R
IREF
IREF
Controller
GND
VCC
VCC
3
LAT
TLC5928
www.ti.com...................................................................................................................................................... SBVS120B – JULY 2008 – REVISED OCTOBER 2008
16-Channel, Constant-Current LED Driver with LED Open Detection
• LED Video Displays
23
• 16 Channels, Constant Current Sink Output
with On/Off Control
• Message Boards
• Illumination
• 35-mA Capability (Constant Current Sink)
• 10-ns High-Speed Constant Current Switching
Transient Time
The TLC5928 is a 16-channel, constant current sink
• Low On-Time Error
LED driver. Each channel can be turned on/off by
• LED Power-Supply Voltage up to 17 V
writing serial data to an internal register. The constant
• V
CC = 3.0 V to 5.5 V
current value of all 16 channels is set by a single
• Constant Current Accuracy:
external resistor.
Channel-to-Channel = ±1%
The TLC5928 has two error detection circuits: one for
LED open detection (LOD) and one for a pre-thermal
Device-to-Device = ±1%
warning
(PTW).
LOD
detects
a
broken
or
• CMOS Logic Level I/O
disconnected LED and LEDs shorted to GND while
• 35-MHz Data Transfer Rate
the constant current output is on. PTW indicates a
• 20-ns BLANK Pulse Width
high temperature condition.
• Readable Error Information:
LED Open Detection (LOD)
Pre-Thermal Warning (PTW)
• Operating Temperature: –40°C to +85°C
Typical Application Circuit (Multiple Daisy-Chained TLC5928s)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments, Inc.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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