CL25
90V, 25 mA Simple Temperature-Compensated Constant-Current
LED Driver IC
Features
General Description
•
•
•
•
The
CL25
is
a
high-voltage,
temperature-compensated, constant-current source.
This device is trimmed to provide a constant current of
25 mA ±10% at an input voltage of 5V to 90V. No
external components are required. The device can be
used as a two-terminal constant-current source or
constant-current sink.
5V to 90V Operating Voltage Range
25 mA ±10% at 5V to 90V
0.01%/°C Typical Temperature Coefficient
Two-Terminal Device with no External
Components
• Can be Paralleled for Higher Current
A typical application for the CL25 is to drive LEDs with
a constant current of 25 mA. Multiple CL25 devices can
also be used in parallel to provide higher currents, such
as 50 mA, 75 mA and 100 mA. The device is available
in TO-92 and SOT-89 packages.
Applications
• LED Channel Lighting
• Industrial Lamp Indicators
• Accent Lighting
Package Types
3-lead SOT-89
(Top view)
3-lead TO-92
(Top view)
VB
VB
NC
VB
VA
See Table 2-1 and Table 2-2 for pin information.
2018 Microchip Technology Inc.
VA
NC
DS20005804A-page 1
CL25
Functional Block Diagram
VA
Control Circuit
and Temperature
Compensation
VB
Functional Circuit Diagram
VA
25mA
±10%
VB
Equivalent Block Diagram
DS20005804A-page 2
2018 Microchip Technology Inc.
CL25
Typical Application Circuit
VA
Functional Circuit
Diagram
CL25
Up to 90V
+ VLED(total)
VB
ILED
25mA
+
Control Circuit
and Temperature
Compensation
VLED(TOTAL)
-
2018 Microchip Technology Inc.
VA
VB
DS20005804A-page 3
CL25
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings†
Operating Voltage, VA–B ..........................................................................................................................................100V
Junction Temperature, TJ ......................................................................................................................–40°C to +135°C
Storage Temperature, TS ......................................................................................................................–55°C to +150°C
Power Dissipation (at TA = 25°C):
3-lead SOT-89 .................................................................................................................................................. 1.3W
3-lead TO-92 .................................................................................................................................................... 0.6W
† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only, and functional operation of the device at those or any other conditions above those
indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for
extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
Electrical Specifications: TA = 25°C unless otherwise specified.
Parameter
Sym.
Min.
Typ.
Max.
Unit
Conditions
Operating Voltage
VA–B
5
—
90
V
Current Regulation
IA–B
22.5
25
27.5
mA
∆IA–B/∆T
—
0.01
—
TJ
–40
—
+125
°C
RA–B
—
300
—
kΩ
Sym.
Min.
Typ.
Max.
Unit
Operating Junction Temperature
TJ
–40
—
+125
°C
Maximum Junction Temperature
TJ(ABSMAX)
—
—
+135
°C
TS
–55
—
+150
°C
3-lead SOT-89
JA
—
133
—
°C/W Note 1
3-lead TO-92
JA
—
132
—
°C/W
IA-B Temperature Coefficient
Operating Junction Temperature
Dynamic Resistance
VA–B = 5V–90V
%/°C VA–B = 45V, TJ = –40°C to +100°C
TEMPERATURE SPECIFICATIONS
Parameter
Conditions
TEMPERATURE RANGE
Storage Temperature
PACKAGE THERMAL RESISTANCE
Note 1:
Mounted on a 25 mm x 25 mm x 1.57 mm FR4 board
DS20005804A-page 4
2018 Microchip Technology Inc.
CL25
Output Current vs.Temperature
Output Current vs. Voltage
30
25
I A-B (mA)
20
15
10
5
0
0
10
20
30
40
50
60
70
80
90
100
VA-B
2018 Microchip Technology Inc.
DS20005804A-page 5
CL25
2.0
PIN DESCRIPTION
The details on the pins of CL25 3-lead SOT-89 and
3-lead TO-92 packages are listed in Table 2-1 and
Table 2-2. Refer to Package Types for the location of
pins.
TABLE 2-1:
3-LEAD SOT-89 PIN FUNCTION TABLE
Pin Number
Pin Name
1
VA
Supply voltage and constant-current sink
2
VB
Constant-current source
3
NC
No connection
4
VB
Constant-current source
TABLE 2-2:
Description
3-LEAD TO-92 PIN FUNCTION TABLE
Pin Number
Pin Name
1
VA
Supply voltage and constant-current sink
2
NC
No connection
3
VB
Constant-current source
DS20005804A-page 6
Description
2018 Microchip Technology Inc.
CL25
3.0
APPLICATION INFORMATION
VA
Up to 90V
+VLED(TOTAL)
CL25
VB
VA
VA
CL25
VB
CL25
VB
VA
CL25
VB
+
(Note)
ILED
25mA
ILED
25mA
ILED
25mA
ILED
25mA
VLED(TOTAL)
-
Note:
FIGURE 3-1:
At high voltages across the VA pin and VB pin, pulse operation with suitable duty cycle should be used to keep
the device power dissipation and junction temperature below the maximum limit.
CL25 for Multiple LED Strings.
VA
Up to 90V
+VLED(TOTAL)
CL25
VB
VA
VA
CL25
VB
(Note)
ILED
75mA
CL25
+
VB
VLED(TOTAL)
-
Note:
FIGURE 3-2:
At high voltages across the VA pin and VB pin, pulse operation with suitable duty cycle should be used to keep
the device power dissipation and junction temperature below the maximum limit.
CL25 for Higher Current.
2018 Microchip Technology Inc.
DS20005804A-page 7
CL25
4.0
PACKAGING INFORMATION
4.1
Package Marking Information
3-lead SOT-89
XXXXYWW
NNN
Legend: XX...X
Y
YY
WW
NNN
e3
*
Note:
DS20005804A-page 8
Example
CL25825
256
3-lead TO-92
Example
XXXXXX
XXXX e3
YWWNNN
CL25
N3 e3
815364
Product Code or Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for product code or customer-specific information. Package may or
not include the corporate logo.
2018 Microchip Technology Inc.
CL25
Note: For the most current package drawings, see the Microchip Packaging Specification at www.microchip.com/packaging.
2018 Microchip Technology Inc.
DS20005804A-page 9
CL25
3-Lead TO-243AA (SOT-89) Package Outline (N8)
D
D1
C
E H
L
1
2
E1
3
b
b1
e
A
e1
Side View
Top View
Note: For the most current package drawings, see the Microchip Packaging Specification at www.microchip.com/packaging.
Symbol
Dimensions
(mm)
A
b
b1
C
D
D1
E
E1
MIN
1.40
0.44
0.36
0.35
4.40
1.62
2.29
2.00†
NOM
-
-
-
-
-
-
-
-
MAX
1.60
0.56
0.48
0.44
4.60
1.83
2.60
2.29
e
e1
1.50
BSC
3.00
BSC
H
L
3.94
0.73†
-
-
4.25
1.20
JEDEC Registration TO-243, Variation AA, Issue C, July 1986.
† This dimension differs from the JEDEC drawing
Drawings not to scale.
DS20005804A-page 10
2018 Microchip Technology Inc.
CL25
APPENDIX A:
REVISION HISTORY
Revision A (November 2018)
• Converted Supertex Doc# DSFP-CL7 to Microchip DS20005804A
• Changed the maximum junction temperature in
the Absolute Maximum Ratings from 125°C to
135°C
• Changed the package marking format
• Removed the 3-lead TO-92 N3 P002, P003,
P005, P013, and P013 media types
• Made new sections to comply with the standard
Microchip document format
• Made minor text changes throughout the document
2018 Microchip Technology Inc.
DS20005804A-page 11
CL25
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office.
PART NO.
Device
Device:
Packages:
Environmental:
Media Types:
XX
-
Package
Options
CL25
X
-
Environmental
=
X
Media Type
90V, 25 mA Simple TemperatureCompensated Constant-Current LED Driver
IC
N8
=
3-lead SOT-89
N3
=
3-lead TO-92
G
=
Lead (Pb)-free/RoHS-compliant Package
(blank)
=
2000/Reel for an N8 Package
(blank)
=
1000/Bag for an N3 Package
DS20005804A-page 12
Examples:
a) CL25N8-G:
90V, 25 mA Simple
Temperature-Compensated
Constant-Current LED Driver
IC, 3-lead SOT-89 Package,
2000/Reel
b) CL25N3-G:
90V, 25 mA Simple Temperature-Compensated ConstantCurrent LED Driver IC, 3-lead
TO-92 Package, 1000/Bag
2018 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights unless otherwise stated.
Trademarks
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
The Microchip name and logo, the Microchip logo, AnyRate, AVR,
AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo,
CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo,
JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus,
maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip
Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo,
SuperFlash, tinyAVR, UNI/O, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.
ClockWorks, The Embedded Control Solutions Company,
EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,
mTouch, Precision Edge, and Quiet-Wire are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, INICnet, Inter-Chip Connectivity,
JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi,
motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB,
MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation,
PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon,
QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O,
SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
Silicon Storage Technology is a registered trademark of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2018, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-3868-7
== ISO/TS 16949 ==
2018 Microchip Technology Inc.
DS20005804A-page 13
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Australia - Sydney
Tel: 61-2-9868-6733
India - Bangalore
Tel: 91-80-3090-4444
China - Beijing
Tel: 86-10-8569-7000
India - New Delhi
Tel: 91-11-4160-8631
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
China - Chengdu
Tel: 86-28-8665-5511
India - Pune
Tel: 91-20-4121-0141
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
China - Chongqing
Tel: 86-23-8980-9588
Japan - Osaka
Tel: 81-6-6152-7160
Finland - Espoo
Tel: 358-9-4520-820
China - Dongguan
Tel: 86-769-8702-9880
Japan - Tokyo
Tel: 81-3-6880- 3770
China - Guangzhou
Tel: 86-20-8755-8029
Korea - Daegu
Tel: 82-53-744-4301
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
China - Hangzhou
Tel: 86-571-8792-8115
Korea - Seoul
Tel: 82-2-554-7200
China - Hong Kong SAR
Tel: 852-2943-5100
Malaysia - Kuala Lumpur
Tel: 60-3-7651-7906
China - Nanjing
Tel: 86-25-8473-2460
Malaysia - Penang
Tel: 60-4-227-8870
China - Qingdao
Tel: 86-532-8502-7355
Philippines - Manila
Tel: 63-2-634-9065
China - Shanghai
Tel: 86-21-3326-8000
Singapore
Tel: 65-6334-8870
China - Shenyang
Tel: 86-24-2334-2829
Taiwan - Hsin Chu
Tel: 886-3-577-8366
China - Shenzhen
Tel: 86-755-8864-2200
Taiwan - Kaohsiung
Tel: 886-7-213-7830
Israel - Ra’anana
Tel: 972-9-744-7705
China - Suzhou
Tel: 86-186-6233-1526
Taiwan - Taipei
Tel: 886-2-2508-8600
China - Wuhan
Tel: 86-27-5980-5300
Thailand - Bangkok
Tel: 66-2-694-1351
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
China - Xian
Tel: 86-29-8833-7252
Vietnam - Ho Chi Minh
Tel: 84-28-5448-2100
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Austin, TX
Tel: 512-257-3370
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Novi, MI
Tel: 248-848-4000
Houston, TX
Tel: 281-894-5983
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Tel: 317-536-2380
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Tel: 951-273-7800
Raleigh, NC
Tel: 919-844-7510
New York, NY
Tel: 631-435-6000
San Jose, CA
Tel: 408-735-9110
Tel: 408-436-4270
Canada - Toronto
Tel: 905-695-1980
Fax: 905-695-2078
DS20005804A-page 14
China - Xiamen
Tel: 86-592-2388138
China - Zhuhai
Tel: 86-756-3210040
Germany - Garching
Tel: 49-8931-9700
Germany - Haan
Tel: 49-2129-3766400
Germany - Heilbronn
Tel: 49-7131-67-3636
Germany - Karlsruhe
Tel: 49-721-625370
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Germany - Rosenheim
Tel: 49-8031-354-560
Italy - Padova
Tel: 39-049-7625286
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Norway - Trondheim
Tel: 47-7288-4388
Poland - Warsaw
Tel: 48-22-3325737
Romania - Bucharest
Tel: 40-21-407-87-50
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Sweden - Gothenberg
Tel: 46-31-704-60-40
Sweden - Stockholm
Tel: 46-8-5090-4654
UK - Wokingham
Tel: 44-118-921-5800
Fax: 44-118-921-5820
2018 Microchip Technology Inc.
08/15/18
