TLC5920DLG4 [TI]
具有 10MHz 数据传输速率的 16 通道 LED 驱动器 | DL | 48 | -20 to 85;
| 型号： | TLC5920DLG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 具有 10MHz 数据传输速率的 16 通道 LED 驱动器 | DL | 48 | -20 to 85 数据传输 驱动 光电二极管 接口集成电路 显示驱动器 驱动程序和接口 |
| 文件： | 总12页 (文件大小：180K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
DL PACKAGE
(TOP VIEW)
Drive Capability:
– Segment . . . 30 mA × 16 Bits
– Common . . . 640 mA
COM3
COM2
COM1
COM0
GNDLED
NC
GNDLED
COM4
1
48
47
46
45
44
43
Constant Current Output . . . 3 mA to 30 mA
(Current Value Setting for All Channels
Using External Resistor)
2
COM5
3
COM6
4
Constant Current Accuracy ±6% (Maximum
Error Between Bits)
COM7
5
GNDLED
6
Data Input: Clock Synchronized Serial Input
LED Type Applied Cathode Common
Logic Power Supply Voltage 4.5 V to 5.5 V
LED Power Supply Voltage 4.5 V to 5.5 V
Operating Frequency . . . 10 MHz
NC
7
42 SIN
VLED
S0
8
41 LATCH
40 SCLK
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
S1
BLANK
CSEL0
GNDLOG
CSEL1
CSEL2
VLOG
DSEL
SOUT
VLED
DSEL
S15
S2
S3
Operating Free-Air Temperature Range
–20°C to 85°C
S4
S5
48-Pin SSOL Package
S6
S7
description
IREF
VLED
VANA
NC
The TLC5920 is an LED driver incorporating a
16-channel shift register, data latch, and constant
current circuitry with current value control and
8-channel common driver into a single chip. The
constant output current is capable of 30 mA for 16
bits simultaneously, and the current value can be
set by one external register. This device also
includes a 16-bit segment driver and 8-bit
common driver; therefore, the monocolor LED
array with 16 × 8 dots can be driven by only one
TLC5920, and a two-color LED array with 16 x 16
dots can be driven by two TLC5920s.
GNDANA
S8
S14
S13
S9
S12
S10
S11
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.
Copyright 2000, Texas Instruments Incorporated
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
functional block diagram
DSEL
COM0
DSEL
BLANK
3 TO 8
Decoder
Common
Driver
CSEL0
CSEL1
COM7
SOUT
CSEL2
SIN
16 bits
Shift Register
SCLK
16 bits
Data Latch
LATCH
IREF
Segment Driver
and
Current Control
S0
S15
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
BLANK
NO.
Blank(lightoff). Byturningalltheoutputforthecommondriveroff, theLEDisturnedoff.When
BLANK is high, the LED is turned off.
39
I
4, 3, 2, 1, 47, 46,
45, 44
COM0 – COM7
CSEL0 – 2
DSEL
O
LED common driver output
Common driver select. One terminal out of COM0 through COM7 is selected.
2
L
1
L
0
L
H
L
H
L
H
L
Common Driver
0
1
2
3
4
5
6
7
L
L
L
H
H
H
H
L
H
H
L
L
H
H
38, 36, 35
I
H
Display select. When DSEL is high, the LED is turned off. Note that, when BLANK is high,
the LED is turned off with no regard to the DSEL input.
33
I
DSEL
30
21
O
Display select output. The inverted data of DSEL is clocked out.
GNDANA
GNDLED
GNDLOG
Analog ground
LED driver ground
Logic ground
5, 43, 48
37
Constant current control setting. The LED current is set to the desired value by connecting
an external resistor between IREF and GND.
IREF
17
41
I
I
Latch. When LATCH is high, data on the shift register goes through latch. When LATCH is
low, data is latched.
LATCH
SIN
42
32
I
Serial input for display
Serial output for display
SOUT
O
Synchronous clock input for serial data transfer. The input data of SIN is synchronized to
the rising edge of SCLK, and transferred to SOUT.
SCLK
40
I
9, 10, 11, 12, 13, 14,
15, 16, 22, 23, 24,
25, 26, 27, 28, 29
S0 – S15
O
LED segment driver output
VANA
VLOG
VLED
19
34
Analog power supply voltage
Logic power supply voltage
LED driver power supply voltage
8, 18, 31
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
†
absolute maximum ratings (see Note 1)
Logic supply voltage, V
LED supply voltage, V
Analog supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 7 V
(LOG)
(LED)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 7 V
(ANA)
Output current, I
Output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 32 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mA
OH(S)
OL(C)
Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to V
Output voltage range, V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500 mW
+ 0.3 V
+ 0.3 V
I
(LOG)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to V
(LOG)
O
Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Operating free-air temperature range (see Note 2), T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 20 to 85°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 125°C
stg
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to GND terminal.
2. ≤ 150°C (refer to appendix thermal condition).
T
J
recommended operating conditions
dc characteristics (see Note 3)
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
5.5
UNIT
V
Logic supply voltage, V
4.5
4.5
4.5
5
5
5
0
(LOG)
LED supply voltage, V
5.5
5.5
0.3
V
(LED)
Analog power supply, V
(ANA)
V
Voltage between GND and V
G
G
= GND
– GND
(LED)
–0.3
2.0
V
(DEF), (DEF)
(DEF)
(LOG)
High-level input voltage, V
IH
V
V
(LOG)
0.8
Low-level input voltage, V
GND
V
IL
(LOG)
High-level output current, I
High-level output current, I
V
= 4.5V, SOUT, DSEL
–1
–30
1.6
OH
(LOG)
mA
S0 to S15
V = 4.5V, SOUT, DSEL
(LOG)
OH(S)
OL
Low-level output current, I
Low-level output current, I
mA
DUTY = 1/16, COM0 to COM7
640
85
OL(C)
Operating free-air temperature range, T (see Note 2)
–20
°C
A
NOTES:
2
3.
T ≤ 150°C (refer to appendix thermal condition).
J
ANA
V
must be same as V .
LED
ac characteristics (T = –20°C to 85°C)
A
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
10
UNIT
MHz
ns
f
t
Shift clock frequency
(SCLK)
/t
SCLK pulse duration (high- or low-level)
Rise/fall time
40
w(H) w(l)
t /t
r f
100
ns
SIN – SCLK
10
10
10
10
t
Setup time
Hold time
ns
ns
su
h
SCLK – LATCH
LATCH – SCLK
SIN – SCLK
t
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
electrical characteristics (unless otherwise noted),
MIN/MAX: V
= V
= V
= 4.5 V to 5.5 V, T = –20°C to 85°C
(LOG)
(ANA)
(LED)
= 5 V, T = 25°C
A
TYP: V
= V
= V
(LOG)
(ANA) (LED)
A
PARAMETER
TEST CONDITIONS
= –1 mA, SOUT, DSEL
= 1.6 mA, SOUT, DSEL
= 640 mA, COM0 to COM7
MIN
3.6
TYP
MAX
UNIT
V
V
High-level output voltage
Low-level output voltage
Input current
I
V
OH
OH
OL
OL
I
I
0.6
0.9
±1
V
OL
0.6
I
I
I
I
I
I
I
I
V = V
or GND
(LOG)
µA
I
I
(LOG)
Data transfer, SCLK = 10 MHz
LED is turned off
0.1
1.6
1.6
(LOG)
Supply current
0.8
0.8
mA
(LED)
LED is turned off
(ANA)
V
V
V
V
= 2.5 V,
= 2.5 V,
= 2.5 V,
= 2.5 V,
R
R
R
R
R
= 4200 Ω
= 1260 Ω
= 630 Ω
= 420 Ω
= 630 Ω,
–2.45
–8.5
–3 –3.45
OH(S03)
OH(S10)
OH(S20)
OH(S30)
(Sn)
(Sn)
(Sn)
(Sn)
(LED)
(IREF)
(IREF)
(IREF)
(IREF)
(IREF)
–10 –11.5
Segment current
mA
–17
–20
–23
–25.5
–30 –34.5
V
V
= 5 V,
= 2.5 V
∆I
Segment current error between bits
Voltage reference
±3%
±6%
OH(S)
REF
(Sn)
V
1.2
1.26
1.3
V
switching characteristics, C = 15 pF
L
PARAMETER
TEST CONDITIONS
SOUT
MIN
TYP
MAX
UNIT
40
40
DSEL
t
t
t
Rise time
ns
r
COMn
80
Sn
80
SOUT
40
DSEL
40
Fall time
ns
ns
f
COMn
40
Sn
40
LATCH – Sn
SCLK – Sn
SCLK – SOUT
DSEL – DSEL
CSELn – COMn
DSEL – COMn
BLANK – COMn
CSELn – COMn
DSEL – COMn
BLANK – COMn
40
40
Propagation delay time
d
40
40
120
120
120
40
t
t
Propagation delay time
Propagation delay time
ns
ns
(DLH)
40
(DHL)
40
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
PARAMETER MEASUREMENT INFORMATION
POWER RATING
vs
FREE-AIR TEMPERATURE
1.5
0.78
–20
0
25
85
T
A
– Free-Air Temperature – °C
SEGMENT CURRENT – I
OHS
40
30
20
10
0
V
= 5 V,
= 2.5 V,
= 25°C
CC
V
T
(Sn)
A
V
REF
I
10
OH(S)
R
(IREF)
0
0.5
1
1.5
– kΩ
2
2.5
3
R
(IREF)
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing diagram (common driver)
CSEL0
CSEL1
CSEL2
DSEL
t
BLK–CSEL
su
t
BLK–CSEL
h
BLANK
COM0
t
BLK–COMMON
d
t
BLK–COMMON
d
t
DSEL–COMMON
d
COM1
COM2
COM3
COM4
COM5
COM6
COM7
t
DSEL
d
Segment Data Write Timing
DSEL
timing diagram (segment driver)
t
clk
t
t
r
f
SCLK
t
D–CLK
D0A
t D–CLK
h
su
t
t
wl
wh
D1A
D2A
D14A
D15A
D0B
D1B
D2B
D14B
D15B
D0C
D1C
D2C
SIN
t
(LAT–SCLK)
su
t (LAT–SCLK)
h
LATCH
t
LAT
w
t
LAT–SO
t
SCLK–SO
D0C D1C
d
d
D15A
D15A
D14A
D14B D15B
S0
S1
D14A
D13B D14B
D15B
D0C
D1A
D0A
D1A
D0A
D0B
D1B
D0B
D2B
D1B
D3B
D2B
S14
S15
D15A
t
SCLK–SOUT
d
D0A
D1A
D2A
D14A
D15A
D0B
D01B
D2B
SOUT
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
APPLICATION INFORMATION
example 1
The other remaining terminals used for dot matrix LED drive can be utilized for LED lamp drive and other
displays.
LEDs driven by TLC5920
cathode common type
LED
NO. OF COLOR
Mono
Two
TLC5920
QUANTITY
DRIVE CURRENT
(mA)
DUTY
TYPE
QUANTITY
16
8
1
1
1
1
1
1
1
1
2
2
3
3
3
Static
Static
1/8
30
30
30
30
30
30
30
30
20
20
13
13
13
LAMP
Mono
Two
16
8
7 SEGMENT
5 x 7
1/8
Mono
Two
3
1/8
1
1/8
Mono
Two
2
1/8
8 x 8
1
1/8
Mono
Two
2
1/16
1/16
1/16
1/24
1/24
16 x 16
24 x 24
1
Three
Mono
Two
1
2
1
COM7
COM6
TLC5920
S9
COM0
S0
S15
S14
S10
S5
S4
= LED
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
APPLICATION INFORMATION
example 2
Using two TLC5920s, an LED with two colors and 16 x 16 dots can be driven. The number of LED arrays can
also be increased by making a cascade connection in the application circuit.
CSEL0
CSEL1
CSEL2
BLANK
LATCH
SCLK
1IREF
1DSEL
2SIN
Red
1SOUT
Green
2SOUT
Red
SOUT
DSEL
IREF
SOUT
SIN
SCLK
DSEL
COM7
SIN
SCLK
DSEL
COM7
1SIN
Green
2DSEL
2IREF
DSEL
IREF
IC2
TLC5920
IC1
TLC5920
COM0
COM0
S15
S15
S0
S0
16 x 16 Dots
Two–Colors LED Array
= LED
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC5920
16x8 BIT LED DRIVER/CONTROLLER
SLAS264 – MARCH 2000
MECHANICAL DATA
DL (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
48 PINS SHOWN
0.025 (0,635)
48
0.012 (0,305)
0.005 (0,13)
M
0.008 (0,203)
25
0.006 (0,15) NOM
0.299 (7,59)
0.291 (7,39)
0.420 (10,67)
0.395 (10,03)
Gage Plane
0.010 (0,25)
0°–8°
1
24
0.040 (1,02)
0.020 (0,51)
A
Seating Plane
0.004 (0,10)
0.008 (0,20) MIN
PINS **
0.110 (2,79) MAX
28
48
0.630
56
DIM
0.380
(9,65)
0.730
A MAX
A MIN
(16,00) (18,54)
0.370
(9,40)
0.620
0.720
(15,75) (18,29)
4040048/D 08/97
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15).
D. Falls within JEDEC MO-118
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 2000, Texas Instruments Incorporated
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