CAT4026 ON Semiconductor, CAT4026 Datasheet
CAT4026
Manufacturer Part Number
CAT4026
Description
6-channel Led Controller With Fault Diagnostics For Large Panel Led Backlighting
Manufacturer
ON Semiconductor
Datasheet
1.CAT4026.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CAT4026V
Manufacturer:
Catalyst
Quantity:
41
Part Number:
CAT4026V
Manufacturer:
CSI
Quantity:
20 000
Company:
Part Number:
CAT4026V-T1
Manufacturer:
ON
Quantity:
220
CAT4026
6-Channel LED Controller
with Fault Diagnostics for
Large Panel LED
Backlighting
Description
designed to control six constant current high voltage LED strings.
Added control circuitry monitors the lowest cathode voltage and
generates a feedback control signal to an external Switch Mode Power
Supply (SMPS) to provide a low cost and efficient solution for large
panel high voltage LED backlighting.
sensing an external resistor in series with a low cost bipolar power
transistor. This allows current and heat dissipation concerns to be
mitigated from the CAT4026 device package.
and Shorted−Cathode−Anode (SCA) fault detection circuitry has been
included along with independent Fault flag logic outputs for
diagnostic purposes.
by either a Pulse Width Modulation signal via the PWM input pin or
by an analog dimming voltage applied at the ANLG pin. In addition
the ANLG pin provides a convenient method for limiting the overall
maximum power dissipation in the event of excessive LED shorting
within any LED string.
taking the PWM pin low for an extended length of time.
Features
•
•
•
•
•
•
•
•
•
•
Typical Applications
•
•
© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. 2
The CAT4026 is a high performance, large panel LED controller
Each LED channel current is accurately matched and controlled by
For added system reliability, both Open−Cathode−Anode (OCA)
LED current dimming in all six channels can be precisely controlled
The device will automatically enter low current shutdown mode by
Compliant
6 Channel LED Controller
Adaptive Feedback Control to External SMPS for Better Efficiency
PWM and Analog Mode Dimming
Short Cathode−Anode (SCA) Fault Protection
Open Cathode−Anode (OCA) Fault Protection
Over−V oltage Protection
Thermal Shutdown Protection
Automatic Inactivity Power Down Mode
SOIC−28L Package
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
LCD−TV LED Backlighting
LED General Lighting
1
L
3
A
CAT4026V = Specific Device Code
YY
WW
XXXX
CAT4026V−T1
(Note 1)
1. Matte Tin Plated Finish (RoHS−compliant)
Device
BASE1
RSET1
BASE2
RSET2
BASE3
RSET3
ANLG
PWM
ORDERING INFORMATION
= Assembly Location Code
= Mark “3” for (lead finish Matte−Tin)
= Product Revision: Fixed as “A”
= Production Year (Last Two Digits)
= Production Week (Two Digits)
= Last Four Digits of Assembly Lot Number
VDD
OCA
N.C.
N.C.
C1
VA
MARKING DIAGRAM
PIN CONNECTIONS
http://onsemi.com
1
L3A
CAT4026V
YYWWXXXX
CASE 751BM
(Top View)
V SUFFIX
SOIC−28
(Pb−Free)
SOIC−28
Package
Publication Order Number:
GND
SCA
VCS
BASE6
RSET6
BASE5
RSET5
BASE4
RSET4
FLT−OCA
C3
FLT−SCA
IFB
VC
Tape & Reel
Shipping
1,000/
CAT4026/D
Related parts for CAT4026
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
ON Semiconductor [VOLTAGE REGULATOR]
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
ON Semiconductor
Datasheet:
CAT4026 Summary of contents
Page 1
... Large Panel LED Backlighting Description The CAT4026 is a high performance, large panel LED controller designed to control six constant current high voltage LED strings. Added control circuitry monitors the lowest cathode voltage and generates a feedback control signal to an external Switch Mode Power Supply (SMPS) to provide a low cost and efficient solution for large panel high voltage LED backlighting ...
Page 2
... All packages are RoHS−compliant (Lead−free, Halogen−free). 3. The standard lead finish is Matte Tin. 4. The device used in the above example is a CAT4026V−T1 (SOIC−28L, Matte Tin, Tape & Reel, 1,000/Reel). 5. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. ...