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TLC5948APWPR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TLC5948APWPR
Description  16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLC5948APWPR Datasheet(HTML) 1 Page - Texas Instruments

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¼
SIN
SCLK
LAT
GSCLK
SOUT
GND
VCC
Device 1
VCC
¼
¼
¼
SIN
SCLK
LAT
GSCLK
R
IREF
IREF
SOUT
Device n
OUT0
OUT15
DATA
SCLK
GSCLK
¼
R
IREF
IREF
Controller
GND
VCC
VCC
3
LAT
¼
¼
OUT0
OUT15
¼
DataRead
VLED
TLC5948A
www.ti.com
SBVS192 – MARCH 2012
16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver for
7-Bit DC and 7-Bit Global BC LED Lamp
Check for Samples: TLC5948A
1
FEATURES
23
16 Constant-Current Sink Output Channels
Current Reference Terminal Short Flag (ISF)
Sink Current Capability with Maximum DC and
Thermal Shutdown (TSD) and Error Flag (TEF)
BC Data:
Pre-Thermal Warning (PTW)
2 mA to 45 mA (VCC ≤ 3.6 V)
Four-Channel Grouped Delay Switching to
2 mA to 60 mA (VCC > 3.6 V)
Prevent Inrush Current
Dot Correction (DC):
Operating Temperature: –40°C to +85°C
7-Bit (128 Steps) with 0% to 100% Range
APPLICATIONS
Global Brightness Control (BC):
LED Video Displays
7-Bit (128 Steps) with 25% to 100% Range
LED Signboards
Grayscale Control (GS) with Enhanced
Spectrum or Conventional PWM:
DESCRIPTION
16-Bit (65,536 Steps)
The TLC5948A is a 16-channel, constant-current sink
LED Power-Supply Voltage: Up to 10 V
LED driver. Each channel has an individually-
VCC: 3.0 V to 5.5 V
adjustable, pulse width modulation (PWM) grayscale
(GS) brightness control with 65,536 steps and 128
Constant-Current Accuracy:
steps of constant-current dot correction (DC). DC
Channel-to-Channel: ±0.6% (typ), ±2% (max)
adjusts brightness deviation between channels. All
Device-to-Device: ±1% (typ), ±4% (max)
channels have a 128-step global brightness control
(BC). BC adjusts brightness deviation with other LED
Data Transfer Rate: 33 MHz
drivers. GS, DC, and BC data are accessible with a
Grayscale Control Clock: 33 MHz
serial interface port.
Auto Display Repeat and Auto Data Refresh
The TLC5948A has six error flags: LED open
Display Timing Reset
detection (LOD), LED short detection (LSD), output
Power-Save Mode to Minimize VCC Current
leakage detection (OLD), reference current terminal
short flag detection (ISF), pre-thermal warning (PTW),
LOD and LSD with Invisible Detection
and thermal error flag (TEF). The error detection
Mode (IDM)
results can be read with a serial interface port.
Output Leakage Detection (OLD)
Typical Application Circuit (Multiple Daisy-Chained TLC5948As)
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.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, 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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