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PDF CAT4008 Data sheet ( Hoja de datos )
| Número de pieza | CAT4008 | |
| Descripción | 8-Channel Constant Current LED Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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CAT4008
8-Channel Constant Current
LED Driver
Description
The CAT4008 is an 8 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 0.4 V (for 2 to
100 mA LED current) allows for more power efficient designs.
A high−speed 4−wire serial interface of up to 25 MHz 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 TSSOP package.
Features
• 8 Constant Current−sink Channels
• Serial Interface up to 25 MHz Clock Frequency
• 3 V to 5.5 V Logic Supply
• LED Current Range from 2 mA to 100 mA
• LED Current set by External RSET Resistor
• 300 mV LED Dropout at 30 mA
• Thermal Shutdown Protection
• Available in 16−lead SOIC (150 and 300 mil wide), and TSSOP
Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Billboard Display
• Marquee Display
• Instrument Display
• General Purpose Display
www.onsemi.com
MARKING
DIAGRAM
TSSOP−16
Y SUFFIX
1 CASE 948AN
AB
4008YZZ
3YMXXX
CAT4008Y−T2
A = Assembly Location
3 = Lead Finish − Matte−Tin
B = Product Revision (Fixed as “B”)
4008Y = Device Code
Z or ZZ = Leave Blank
Y = Production Year (Last Digit)
M = Production Month (1-9, A, B, C)
XXX or XXXX = Last Three of Four Digits of
XXX or XXXX = Assembly Lot Number
PIN CONNECTIONS
1
GND
VDD
SIN RSET
SCLK
SOUT
XLAT
BLANK
LED1
LED8
LED2
LED7
LED3
LED6
LED4
LED5
16−Lead TSSOP (Y)
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
July, 2015 − Rev. 3
1
Publication Order Number:
CAT4008/D
1 page  
CLK
SIN
SOUT
LATCH
CAT4008
1/fclk
tssu tsh
tcwl tcwh
tod
tlh tlsu
tlwh
Figure 3. Serial Input Timing Diagram
LATCH
BLANK
LED1
tld
tls
tbd
LED2
LED8
tlst = 7 tls
Figure 4. LED Output Timing Diagram
www.onsemi.com
5
5 Page 
CAT4008
Table 7. ORDERING INFORMATION
Part Number
Marking
Package
Shipping†
CAT4008Y-T2
CAT4008Y
TSSOP16
(Pb−Free)
2,000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which
the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or
unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable
copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
www.onsemi.com
11
CAT4008/D
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet CAT4008.PDF ] | |
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