DRIVER. TLC5910 Datasheet

TLC5910 Datasheet PDF


Part

TLC5910

Description

LED DRIVER

Manufacture

etcTI

Page 30 Pages
Datasheet
Download TLC5910 Datasheet PDF


TLC5910 Datasheet
D Drive Capability and Output Counts
– 80 mA (Current Sink) x 16 Bits
D Constant Current Output Range
– 5 to 80 mA (Current Value Setting for All
Output Terminals Using External Resistor
and Internal Brightness Control Register)
D Constant Current Accuracy
± 4% (Maximum Error Between Bits)
D Voltage Applied to Constant Current Output
Terminals
– Minimum 0.4 V (Output Current 5 to
40 mA)
– Minimum 0.7 V (Output Current 40 to
80 mA)
D 1024 Gray Scale Display
– Pulse Width Control 1024 Steps
D Brightness Adjustment
– All Output Current Adjustment for 64
Steps (Adjustment for Brightness
Deviation Between LED Modules)
– Output Current Adjustment by Output
(OUT0 to OUT15) for 64 Steps
(Adjustment for Brightness Deviation
Between Dots)
– Brightness Control by 16 Steps
Frequency Division Gray Scale Control
Clock (Brightness Adjustment for Panel)
D Gray Scale Clock Generation
– Gray Scale Control Clock Generation by
Internal PLL or External Input Selectable
D Clock Invert/Noninvert Selectable
– Clock Invert Selectable to Reduce
Changes in Duty Ratio at Cascade
Operation
TLC5910
LED DRIVER
SLLS392 – NOVEMBER 1999
D Protection
– WDT (Watchdog Timer) Function (Turn
Output Off When Scan Signal Stopped)
– TSD (Thermal Shutdown) Function (Turn
Output Off When Junction Temperature
Exceeds Limit)
D LOD
– LED Open Detection (Detection for LED
Disconnection)
D Data Input/Output
– Port A (for Data Display)
– Clock Synchronized 10 Bit Parallel
Input (Schmitt Triggered Input)
– Clock Synchronized 10 Bit Parallel
Output (3-State Output)
– Port B (for Dot Correction Data)
– Clock Synchronized 6 Bit Parallel
Input (Schmitt-Triggered Input)
– Clock Synchronized 6 Bit Parallel
Output
D Input/Output Signal Level
– CMOS Level
D Power Supply Voltage
– 4.5 V to 5.5 V (Logic, Analog and
Constant Current)
– 3 V to 5.5 V (Interface)
D Maximum Output Voltage . . . 15 V (Max)
D Data Transfer Rate . . . 20 MHz (Max)
D Gray Scale Clock Frequency
– 16 MHz (Max) Using Internal PLL
– 8 MHz (Max) Using External Clock
D Operating Free-Air Temperature Range
–20°C to 85°C
D 100-Pin HTQFP Package (PD=4.7 W,
TA = 25°C)
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.
These functions are adjustable independently.
Allows the writting of all the data at port A by setting the logic to 1.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1

TLC5910 Datasheet
TLC5910
LED DRIVER
SLLS392 – NOVEMBER 1999
description
The TLC5910 is a constant current driver, incorporating a shift register, data latch, and constant current circuitry
with current value adjustable, PLL circuitry for gray scale control clock generation, and 1024 gray scale display
using pulse width control. The output current is a maximum of 80 mA with 16 bits, and the current value of
constant current output can be set by one external resistor. The device has two channel I/O ports. The
brightness deviation between LED modules (ICs) can be adjusted by external data input from a display data
port. The brightness control for the panel can be accomplished by the brightness adjustment circuitry.
Independently of these functions, the device incorporates the shift register and data latch to correct the deviation
between LEDs adjusting output current using data from a dot correction data port. Moreover, the device
incorporates watchdog timer (WDT) circuitry, which turns the constant current output off when a scan signal is
stopped at the dynamic scanning operation. It incorporates thermal shutdown (TSD) circuitry, which turns
constant current output off when the junction temperature exceeds the limit. It also incorporates LOD (LED open
detection) circuitry, which creates an error signal output when LED disconnection occurs and test mode
functions detect LED open or short conditions.
PZP PACKAGE
(TOP VIEW)
GNDLED
OUT0
OUT1
GNDLED
OUT2
OUT3
GNDLED
OUT4
OUT5
GNDLED
OUT6
OUT7
GNDLED
OUT8
OUT9
GNDLED
OUT10
OUT11
GNDLED
OUT12
OUT13
GNDLED
OUT14
OUT15
GNDLED
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
75 VCOIN
74 RBIAS
73 MAG0
72 MAG1
71 MAG2
70 PDOUT
69 GSPOL
68 GSCLK
67 BLANK
66 XENABLE
65 XOE
64 DCLK
63 XLATCH
62 DCCLK
61 XDCLAT
60 RSEL0
59 RSEL1
58 LEDCHK
57 OPEN
56 WDTRG
55 XDOWN1
54 XDOWN2
53 BOUT
52 XGSOUT
51 XPOUT
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features Datasheet pdf D Drive Capability and Output Counts – 80 mA (Current Sink) x 16 Bits D Const ant Current Output Range – 5 to 80 mA (Current Value Setting for All Output Terminals Using External Resistor and I nternal Brightness Control Register) D Constant Current Accuracy – ± 4% (Ma ximum Error Between Bits) D Voltage App lied to Constant Current Output Termina ls – Minimum 0.4 V (Output Current 5 to 40 mA) – Minimum 0.7 V (Output Cur rent 40 to 80 mA) D 1024 Gray Scale Dis play – Pulse Width Control 1024 Steps D Brightness Adjustment† – All Out put Current Adjustment for 64 Steps (Ad justment for Brightness Deviation Betwe en LED Modules) – Output Current Adju stment by Output (OUT0 to OUT15) for 64 Steps (Adjustment for Brightness Devia tion Between Dots) – Brightness Contr ol by 16 Steps Frequency Division Gray Scale Control Clock (Brightness Adjustm ent for Panel) D Gray Scale Clock Gener ation – Gray Scale Control Clock Gene ration by Internal PLL or External Input Selectable D Clock Invert/Noninvert Selectabl.
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