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Número de pieza | CAT4016 | |
Descripción | 16-Channel Constant Current LED Driver | |
Fabricantes | Catalyst Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de CAT4016 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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CAT4016
16-Channel Constant Current LED Driver
FEATURES
16 Constant current-sink channels
Serial interface up to 25MHz clock frequency
3V to 5.5V logic supply
LED current range from 2mA to 100mA
LED current set by external RSET resistor
300mV LED dropout at 30mA
Thermal shutdown protection
Available in RoHS-compliant 24-lead SOIC,
TSSOP, QSOP, and 4 x 4mm TQFN packages
APPLICATION
Billboard Display
Marquee Display
Instrument Display
General Purpose Display
For Ordering Information details, see page 14.
DESCRIPTION
The CAT4016 is a 16 channel constant current driver
for LED billboard and other general display
applications. LED channel currents are programmed
together via an external RSET resistor. Low output
voltage operation on the LED channels as low as 0.4V
(for 2 to 100mA LED current) allows for more power
efficient designs.
A high-speed 4-wire serial interface of up to 25MHz
clock frequency controls each individual channel using
a shift register and latch configuration. A serial output
data pin (SOUT) allows multiple devices to be
cascaded and programmed via one serial interface.
The device also includes a blanking control pin
(BLANK) that can be used to disable all channels
independently of the interface.
Thermal shutdown protection is incorporated in the
device to disable the LED outputs if the die
temperature exceeds a set limit.
The device is available in the 24-lead SOIC, TSSOP,
QSOP and the compact TQFN 4 x 4mm packages.
TYPICAL APPLICATION CIRCUIT
VIN
3V to
5.5V
1µF
VDD LED1 LED2
BLANK
LATCH
SIN
CLK
CAT4016
GND
20mA
LED16
SOUT
RSET
to next
device
3kΩ
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-5028 Rev. C
1 page www.datasheet4u.com
CLK
SIN
SOUT
LATCH
1/fclk
tssu tsh
tcwl tcwh
tod
tlh tlsu
tlwh
Figure 1. Serial Input Timing Diagram
LATCH
BLANK
LED1
tld
tls
tbd
LED2
LED16
tlst = 15 tls
Figure 2. LED Output Timing Diagram
CAT4016
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-5028 Rev. C
5 Page www.datasheet4u.com
TSSOP 24-Lead 4.4mm (Y)(1)
b
e
TOP VIEW
D
A2
A1
SIDE VIEW
CAT4016
E1 E
SYMBOL
A
A1
A2
b
c
D
E
E1
e
L
L1
θ1
MIN
0.05
0.80
0.19
0.09
7.70
6.25
4.30
0.50
0°
NOM
7.80
6.40
4.40
0.65 BSC
1.00 REF
0.60
MAX
1.20
0.15
1.05
0.30
0.20
7.90
6.55
4.50
0.70
8°
A θ1
END VIEW
c
L1
L
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-153.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
11
Doc. No. MD-5028 Rev. C
11 Page |
Páginas | Total 15 Páginas | |
PDF Descargar | [ Datasheet CAT4016.PDF ] |
Número de pieza | Descripción | Fabricantes |
CAT4016 | 16-Channel Constant Current LED Driver | ON Semiconductor |
CAT4016 | 16-Channel Constant Current LED Driver | Catalyst Semiconductor |
CAT4016W | 16-Channel Constant Current LED Driver | ON Semiconductor |
CAT4016Y | 16-Channel Constant Current LED Driver | ON Semiconductor |
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