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PDF ICN2024 Data sheet ( Hoja de datos )
| Número de pieza | ICN2024 | |
| Descripción | 16-bit Constant Current LED Driver | |
| Fabricantes | CHIPONE | |
| Logotipo |  |
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ICN2024
16-bit Constant Current LED Driver
Description
The ICN2024 is a LED module and display driver IC with
16-constant current output driving capability. The 16-output
current can be adjusted by using different external resistors，
which gives users flexibility in controlling the light intensity of
LEDs.
The ICN2024 contains 16-bit shift registers and latches
which convert serial input data into parallel output format，
therefore，the ON or OFF of LED can be controlled by an external
enable signal OE . And ICN2024 exploits current presision
controlling technology，which makes error between ICs less than
±3%, and error between channels less than ±1.5%. At ICN2024
output stage，16-regulated output ports are designed to provide
uniform and constant current sinks for driving LEDs within a
large range of forward voltage(VF) variations. The high clock
frequency, 30MHz, also satisfies the system requirements of high
volume data transmission.
Features
16 constant-current output channels
Output current setting range：
e3~45mA×16@VDD=5V constant current output
3~30mA×16@VDD=3.3V constant current output
Current accuracy
onBetween channel:<± 1.5%
Between ICs:<± 3%
Fast response of output current, OE (min):150ns@VDD=5V
Output current adjusted through an external resistor
I/O:Schmitt trigger input
Data transfer frequency:fMAX=30MHz(Max)
ip Power supply voltage:VDD=3.3～5V
Pin Description
hPin Name
GND
CSIN
Function
Ground terminal
Serial-data input to the shift register
CLK
Clock input terminal for data shift on rising edge
Data input terminal, LE high level, serial data is
LE transferred to the output latch；LE low level, the data is
latched
OUT0 ~ OUT15
OE
Constant current output terminal
Output enable terminal, OE high level, all output drivers
are enabled; OE low level, all output drivers are turned
OFF
SOUT
Serial-data output to the following SIN of next driver IC
R-EXT
Connect an external resistor for setting up output current
for all output channels
VDD
3.3V/5Vsupply voltage terminal
Chipone Technology (Beijing) Co., Ltd.
www.chiponeic.com
-1-
Version: 0.4 2011-02
1 page  
ICN2024
16-bit Constant Current LED Driver
Transition Items (Unless otherwise specified, VDD==4.5~5.5V，Ta =-40℃~85℃)
Characteristics Symbol Test circuit Test Conditions
Min Typ Max Unit
Serial data transfer
frequency
fCLK
6
- - - 30 MHz
Clock pulse width twCLK
6
SCK=H or L
20 - - ns
Latch pulse width
twLE
6
LE=H
20 - - ns
Enable pulse width twOE
6
OE =H or L，
REXT=890Ω
150 -
- ns
Hold time
tHOLD1
tHOLD2
6
6
- 5 - - ns
- 5 - - ns
Setup time
tSETUP1
6
- 5 - - ns
tSETUP2
6
- 5 - - ns
Maximum clock
rise time
Maximum clock
fall time
tr
tf
6
6
- - 500 ns
- - 500 ns
eElectrical Characteristics (Unless otherwise specified, VDD =4.5~5.5V，Ta =25℃)
onCharacteristics
Symbol
Test
circuit
Test Conditions
Min Typ Max Unit
High level logic
output voltage
VOH
1
IOH=-1mA, SOUT
VDD-0.4
-
VDD
V
Low level logic
output voltage
VOL
1
IOH=+1mA, SOUT
-
- 0.4 V
ipHigh level logic
input current
IIH
2
VIN=VDD, OE , SIN,
CLK
-
- 1 μA
Low level logic
hinput circuit
IIL
3
VIN=GND, LE, SIN,
-
CLK
- -1 μA
IDD1 4 Rext=open, OUT off - 2.5 5.0 mA
CIDD2 4 Rext=1240，OUT off - 4.5 7.0 mA
Power supply
current
IDD3
4 Rext=620，OUT off -
6 9.0 mA
IDD4 4 Rext=1240，OUT on - 5.2 8.5 mA
IDD5 4 Rext=620，OUT on - 6.5 9.5 mA
Constant current
IO1
5
VDD=5.0V, VO=1.0V,
-
15 - mA
REXT=1.24kΩ
output
IO2
5
VDD=5.0V, VO=1.0V,
-
30 - mA
REXT=620Ω
Constant current
error
ΔIO
VDD=5.0V, VO=1.0V,
5
REXT=1.24 kΩ,
-
OUT0 ~ OUT15
±1 ±3 mA
Chipone Technology (Beijing) Co., Ltd.
www.chiponeic.com
-5-
Version: 0.4 2011-02
5 Page 
Package Outline
(1) SSOP24-P-150-0.65
ICN2024
16-bit Constant Current LED Driver
Chipone(2) SSOP24-P-300-1.0
Chipone Technology (Beijing) Co., Ltd.
www.chiponeic.com
- 11 -
Version: 0.4 2011-02
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ICN2024.PDF ] | |
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