TLC5941-Q1 Datasheet PDF


Part Number

TLC5941-Q1

Description

16-Channel LED Driver

Manufacture

etcTI

Total Page 30 Pages
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Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC5941-Q1 SLDS165A – DECE MBER 2008 – REVISED DECEMBER 2014 TLC 5941-Q1 16-Channel LED Driver With Dot Correction and Grayscale PWM Control 1 Features •1 Qualified for Automotive Applications • AEC-Q100 Qualified Wi th the Following Results: – Device Te mperature Grade 1: –40°C to 125°C A mbient Operating Temperature Range – Device HBM ESD Classification Level 2 Device CDM ESD Classification Level C4B • 16 Channels • 12-Bit (4096 St eps) Grayscale PWM Control • Dot Corr ection: 6 Bit (64 Steps) • Drive Capa bility (Constant-Current Sink): 0 mA to 60 mA • LED Power Supply Voltage up to 17 V • VCC = 3.0 V to .
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TLC5941-Q1 Datasheet
Product
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Buy
Technical
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Tools &
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TLC5941-Q1
SLDS165A – DECEMBER 2008 – REVISED DECEMBER 2014
TLC5941-Q1 16-Channel LED Driver With Dot Correction and Grayscale PWM Control
1 Features
1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
• 16 Channels
• 12-Bit (4096 Steps) Grayscale PWM Control
• Dot Correction: 6 Bit (64 Steps)
• Drive Capability (Constant-Current Sink):
0 mA to 60 mA
• LED Power Supply Voltage up to 17 V
• VCC = 3.0 V to 5.5 V
• Serial Data Interface
• Controlled In-Rush Current
• 30-MHz Data Transfer Rate
• CMOS Level I/O
• Error Information
– LOD: LED Open Detection
– TEF: Thermal Error Flag
2 Applications
• Monocolor, Multicolor, Full-Color LED Displays
• LED Signboards
• Display Back-Lighting
3 Description
The TLC5941-Q1 device is a 16-channel, constant-
current sink, LED driver. Each channel has an
individually adjustable 4096-step grayscale PWM
brightness control and a 64-step constant-current sink
(dot correction), which both are accessible via a serial
interface. This device features two fault diagnostic
circuits. The LED open detection (LOD) indicates a
broken or disconnected LED at an output terminal.
The thermal error flag (TEF) indicates an over
temperature condition.
The TLC5941-Q1 features two error information
circuits. The LED open detection (LOD) indicates a
broken or disconnected LED at an output terminal.
The thermal error flag (TEF) indicates an
overtemperature condition.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLC5941-Q1
HTSSOP (28)
9.70 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
VCC GND
SCLK
IREF
Max. OUTn VREF
Current
=1.24 V
GSCLK
BLANK
GS Counter CNT
0
Status
Information:
LOD,
TED,
DC DATA
191
96
192
96
Functional Block Diagram
SIN XLAT
MODE
10
0
MODE
10
GS Register
11 0
DC Register
50
Input
Shift
Register
192
GS Register
23 12
CNT
12−Bit Grayscale
PWM Control
6−Bit Dot Correction
LED Open Detection
CNT
12−Bit Grayscale
PWM Control
95
10
MODE
96
96
DC Register
11 6
6−Bit Dot Correction
LED Open Detection
Temperature
Error Flag
(TEF)
LED Open
Detection
(LOD)
XERR
Input
Shift
Register
191
GS Register
191 180
DC Register
95 90
CNT
12−Bit Grayscale
PWM Control
6−Bit Dot Correction
LED Open Detection
Constant-Current
Driver
Delay
x0
OUT0
Constant-Current
Driver
Delay
x1
OUT1
Constant-Current
Driver
Delay
x15
OUT15
SOUT
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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