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TLC59291 Datasheet(PDF) 1 Page - Texas Instruments

Part # TLC59291
Description  TLC59291 8/16-Channel, Constant Current LED Driver with 7-bit Brightness Control Low Quiescent Current and Full Self Diagnosis for LED Lamp
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLC59291 Datasheet(HTML) 1 Page - Texas Instruments

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SIN
SCLK
LAT
BLANK
SOUT
VCC
GND
OUT0 - - - - - - - - - - OUT15
TLC59291
GND
GND
ICn
R
IREF
IREF
BLANK
LAT
SCLK
3
V
LED
Controller
DATA
SIN
SCLK
LAT
BLANK
SOUT
VCC
GND
OUT0 - - - - - - - - - - OUT15
TLC59291
GND
GND
IC1
IREF
V
CC
V
CC
SID read
R
IREF
Product
Folder
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TLC59291
SLVSA96 – SEPTEMBER 2015
TLC59291 8/16-Channel, Constant Current LED Driver with 7-bit Brightness Control Low
Quiescent Current and Full Self Diagnosis for LED Lamp
1 Features
2 Applications
1
8/16 Constant-Current Sink Output Channels with
Industry LED Indicator
On/Off Control
Illumination
Current Capability:
LED Video Display
1 - 40 mA (VCC ≤ 3.6 V)
3 Description
1 - 50 mA (VCC > 3.6 V)
The TLC59291 is a 8/16-channel constant current
Global Brightness Control: 7-Bit (128 Steps)
sink LED driver. Each channel can be turned on-off
Power-Supply Voltage Range: 3 V to 5.5 V
by writing data to an internal register. The constant
LED Power-Supply Voltage: Up to 10 V
current value of all 16 channels is set by a single
external resistor and 128 steps for the global
Constant-Current Accuracy:
brightness control (BC).
Channel-to-Channel = ±1% (Typical)
The TLC59291 has six type error flags: LED open
Device-to-Device = ±2% (Typical)
detection (LOD), LED short detection (LSD), output
Low Quiescent Current
leak
detection
(OLD),
reference
terminal
short
SOUT can be Configured for 8-Channel or 16-
detection (ISF), Pre thermal warning (PTW) and
Channel Output
thermal error flag (TEF). In addition, the LOD and
LSD functions have invisible detection mode (IDM)
LED Open Detection (LOD)/LED Short Detection
that can detect those errors even when the output is
(LSD) with Invisible Detection Mode (IDM)
off. The error detection results can be read via a
Output Leakage Detection (OLD) Detects 3 µA
serial interface port.
Leak
The TLC59291 has low quiescent current in normal
Pre-Thermal Warning (PTW)
mode, it also has a power-save mode that sets the
Thermal Shutdown (TSD)
total current consumption to 10 uA (typical) when all
outputs are off.
Current Reference Terminal Short Flag (ISF)
Power-Save Mode with 10-µA Consumption
Device Information(1)
Undervoltage Lockout Sets the Default Data
PART NUMBER
PACKAGE
BODY SIZE (NOM)
2-ns Delayed Switching Between Each Channel
TLC59291
VQFN (24)
4.00mm x 4.00mm
Minimizes Inrush Current
(1) For all available packages, see the orderable addendum at
Operating Temperature: –40°C to 85°C
the end of the data sheet.
Typical Application Circuit (Multiple Daisy Chained TLC59291s)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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