DRIVER. TLC5902 Datasheet

TLC5902 Datasheet PDF


Part

TLC5902

Description

LED DRIVER

Manufacture

etcTI

Page 23 Pages
Datasheet
Download TLC5902 Datasheet


TLC5902 Datasheet
TLC5902
LED DRIVER
D 80 mA × 16 Bits and 120 mA × 8 Bits
Drive Capability and Output Counts
D 5 mA to 80 mA/10 mA to 120 mA Constant
Current Output Range
D Constant Currency Accuracy of ±4%
(Maximum Error Between Bits)
D Constant Current Output Terminals
– 0.4 V (Output Current 0 to 40 mA)
– 0.7 V (Output Current 40 to 80 mA)
D 256 Gray Scale Display With Pulse Width
Control 256 Steps
D Brightness Adjustment
– Output Current Adjustment for 32 Steps
(Adjustment for Brightness Deviation
Between LEDs)
– 8 Steps Brightness Control by 8 Times
Speed Gray Scale Control Clock
(Brightness Adjustment for Panel)
SLLS382 – DECEMBER 1999
D Protection
– WDT Function
– TSD Function
D Clock Synchronized 8-Bit Parallel Input
D Anode Common LED Type Applied
D CMOS Input Signal Level
(Schmitt-Triggered Input for All Input
Terminals)
D 4.5 V to 5.5 V Power Supply Voltage
D 15 V Maximum Output Voltage
D 15 MHz Maximum Data Transfer Rate
D 4 MHz Maximum Gray Scale Clock
Frequency
D –20°C to 85°C Operating Free-Air
Temperature Range
D 100-Pin HTQFP Package
(PD = 4.7 W, TA = 25°C)
description
The TLC5902 is a constant current driver that incorporates shift register, data latch, and constant current
circuitry with a current value adjustable and 256 gray-scale display that uses pulse width control. The output
current can be selected as maximum 80 mA with 16 bits or 120 mA with 8 bits. The current value of the constant
current output is set by one external resister. After this device is mounted on a printed-circuit board (PCB), the
brightness deviation between LEDs (ICs) can be adjusted using an external data input, and the brightness
control for the panel can be adjusted using the brightness adjustment circuitry. Moreover, the device
incorporates watchdog timer (WDT) circuitry, which turns the constant current output off when the scan signal
is stopped during dynamic scanning operation, and thermal shutdown (TSD) circuitry, which turns constant
current output off when the junction temperature exceeds the limit.
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
1

TLC5902 Datasheet
TLC5902
LED DRIVER
SLLS382 – DECEMBER 1999
DIN4
DIN5
DIN6
DIN7
TS_ENA
VCCLOG
NC
MODE
GNDLOG
BC_ENA
NC
OUT0
TEST1
NC
GNDLED
NC
NC
OUT1
OUT2
NC
GNDLED
NC
NC
NC
OUT3
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
HTQFP PACKAGE
(TOP VIEW)
50 NC
49 DOUT5
48 DOUT6
47 DOUT7
46 NC
45 VCCANA
44 NC
43 GNDANA
42 WD_CAP
41 PVCC
40 IREF
39 OUT15
38 TEST2
37 NC
36 GNDLED
35 NC
34 NC
33 OUT14
32 OUT13
31 NC
30 NC
29 GNDLED
28 NC
27 NC
26 OUT12
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features Datasheet pdf TLC5902 LED DRIVER D 80 mA × 16 Bits a nd 120 mA × 8 Bits Drive Capability an d Output Counts D 5 mA to 80 mA/10 mA t o 120 mA Constant Current Output Range D Constant Currency Accuracy of ±4% (M aximum Error Between Bits) D Constant C urrent Output Terminals – 0.4 V (Outp ut Current 0 to 40 mA) – 0.7 V (Outpu t Current 40 to 80 mA) D 256 Gray Scale Display With Pulse Width Control 256 S teps D Brightness Adjustment – Output Current Adjustment for 32 Steps (Adjus tment for Brightness Deviation Between LEDs) – 8 Steps Brightness Control by 8 Times Speed Gray Scale Control Clock (Brightness Adjustment for Panel) SLL S382 – DECEMBER 1999 D Protection – WDT Function – TSD Function D Clock Synchronized 8-Bit Parallel Input D Ano de Common LED Type Applied D CMOS Input Signal Level (Schmitt-Triggered Input for All Input Terminals) D 4.5 V to 5.5 V Power Supply Voltage D 15 V Maximum Output Voltage D 15 MHz Maximum Data Tr ansfer Rate D 4 MHz Maximum Gray Scale Clock Frequency D –20°C to 85°C Operating.
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