AD5026.pdf 데이터시트 (총 17 페이지) - 파일 다운로드 AD5026 데이타시트 다운로드

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AiT Semiconductor Inc.
www.ait-ic.com
AD5026
LED DISPLAY DRIVER
16-BIT CONSTANT-CURRENT LED DRIVER
DESCRIPTION
AD5026 is a 16-channel, constant current sink
LED driver. It contains High-precision
current-drive circuit, 16-bit shift register, Latch
and temperature compensation circuit.
AD5026 provides users with great flexibility and
device performance in their system design for
LED display applications, e.g. LED panels.
AD5026 have the ability of the anti-static
technology and anti-jamming technology. It can
make chip data transmission more stable and
work more reliable. Chip antistatic ability up to
more than 4KV.
The AD5026 is available in SSOP24(0.635/1.0) &
QFN24 (4X4) Packages.
APPLICATION
Outdoor LED Video Display
Indoor LED Video Display
Message Signs
TYPICAL APPLICATION
FEATURES
Output constant current: 2~90mA
VDS 300mV (IOUT=20mA)
Red light min input voltage: 2.3~2.5V
Blue & Green light min input voltage: 3.6~3.8V
Constant Current Accuracy:
Channel-to-Channel<±2%
Device-to-Device<±3%
25MHz clock frequency
Operating voltage range: 3.3V~5V
Anti-static damage ability:>4KV
Operating Temperature Range: -40℃~+85
Available in SSOP24 (0.635/1.0) & QFN24
(4X4) Packages.
ORDERING INFORMATION
Package Type
Part Number
SSOP24
MX24
AD5026MX24R-Z
AD5026MX24VR-Z
QFN24
Q24 AD5026Q24R
AD5026Q24VR
Note
V: Halogen free Package
R: Tape & Reel
Z: Dimension Selection
A type: 0.635
B type: 1.0
See package information
AiT provides all RoHS products
Suffix “ V” means Halogen free Package
REV1.3 -MAY 2010 RELEASED, AUG 2012 UPDATED –
-1-

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AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCTIPTION
AD5026
LED DISPLAY DRIVER
16-BIT CONSTANT-CURRENT LED DRIVER
Pin #
SSOP24
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
Top View
QFN24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Symbol
LAT
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
BLANK
SOUT
IREF
VDD
GND
SIN
SCLK
REV1.3 -MAY 2010 RELEASED, AUG 2012 UPDATED –
Top View
Function
Data Strobe Input Pin
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Port
Output Enable
Shift Register Data Output Pin
External Resistor Input Port
Power Supply
GND
Shift Register Data Input Pin
Shift Register Clock Input Pin
-2-

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AiT Semiconductor Inc.
www.ait-ic.com
AD5026
LED DISPLAY DRIVER
16-BIT CONSTANT-CURRENT LED DRIVER
ABSOLUTE MAXIMUM RATINGS
VDD, Supply Voltage
7V
VOUT, Output Voltage
-0.5~10V
IOUT, Output Current
90mA
VIN, Input Voltage
-0.4~VDD+0.4V
FCLK, Clock Frequency
25MHz
IGND, GND Current
1500mA
TSTG, Storage Temperature Range
-65~+150oC
TOPR, Operating Temperature Range
-40~+85oC
VESD, ESD Voltage
4000V
Stresses above 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 in the Electrical Characteristics are not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
REV1.3 -MAY 2010 RELEASED, AUG 2012 UPDATED –
-3-

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AiT Semiconductor Inc.
www.ait-ic.com
AD5026
LED DISPLAY DRIVER
16-BIT CONSTANT-CURRENT LED DRIVER
ELECTRICAL CHARACTERISTICS
VDD=5V, TA=25oC, unless otherwise specified.
Parameter
Symbol
High-level output current
IOH
Low-level output Voltage
VOL
High-level output Voltage
VOH
Conditions
IOL = 1mA
IOH= -1mA
Min Typ Max Unit
- - 1 uA
- - 0.3 V
3 - -V
IOL1
Vo ≥0.4V, RSET = 490Ω
-
36
-
Low-level Output Current
mA
IOL2
Vo ≥0.32V, RSET = 245Ω
-
72
-
Current Skew
B2B
Pull-up Resistor
Pull-down Resistor
RIN(up)
RIN(down)
IDD(OFF) 1
Supply Current (“OFF”) IDD(OFF) 2
IDD(OFF) 3
Supply Current (“ON”)
IDD(ON) 1
IDD(ON) 2
VDS=800mV,
RSET = 490Ω
VDS= 300mV,
RSET = 490Ω
EN Pin
LATCH PIn
RSET=OPEN
OUT 0 to 15 = OFF
RSET = 490Ω
OUT 0 to 15 = OFF
RSET = 245Ω
OUT 0 to 15 = OFF
RSET = 490Ω
OUT 0 to 15 = ON
RSET = 245Ω
OUT 0 to 15 = ON
- ±2
- ±3
%
- 250 - K
- 250 - K
- 1.2 - mA
- 8 - mA
- 15 - mA
- 8 - mA
- 15 - mA
REV1.3 -MAY 2010 RELEASED, AUG 2012 UPDATED –
-4-

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AiT Semiconductor Inc.
www.ait-ic.com
AD5026
LED DISPLAY DRIVER
16-BIT CONSTANT-CURRENT LED DRIVER
AC CHARACTERISTICS
VDD=5V, TA=25oC, unless otherwise specified.
Parameter
Symbol
Conditions
Supply Voltage
VDD
Output Voltage
VO
Output Current
Input Voltage (“H” Level)
Input Voltage (“L” Level)
LAT
Pulse Width
CLK
ENB
Setup Time for DATA
Hold Time for DATA
Setup Time for LAT
Hold Time for LAT
Clock Frequency
IO
IOH
IOL
VIH
VIL
tw(L)
tw(CLK)
tw(ENB)
tsu(D)
th(D)
tsu(L)
th(L)
FCLK
SOUT=VDD
SOUT=0
VDD=3.3 to 5V
Cascade Operation
Min Typ Max Unit
3.3 4.2 5.0 V
- - 10 V
2 - 90 mA
- - -1
mA
--1
0.7VDD - VDD+0.3 V
-0.3
-
0.3VDD
V
20 -
-
20 -
- ns
50 -
-
5-
- ns
10 -
- ns
5-
- ns
5-
- ns
- - 25 MHz
REV1.3 -MAY 2010 RELEASED, AUG 2012 UPDATED –
-5-