CL1N8-G

CL1 90V 20 mA Simple Temperature-Compensated Constant-Current LED Driver IC Features General Description • • • • • The CL1 is a high-voltage temperature-compensated, constant-current source. The device is trimmed to provide a constant current of 20 mA ±5% at an input voltage of 45V. No external components are required. This device can be used as a two-terminal constant-current source or constant-current sink. 5V-to-90V Operating Range (VA–B) 20 mA ±5% at 45V (VA–B) –8.5 µA/°C Typical Temperature Coefficient No External Components (Two-Terminal Device) Can be Paralleled for Higher Current A typical application for the CL1 is to drive LEDs with a constant current of 20 mA. Multiple CL1s can also be used in parallel to provide higher currents, such as 40 mA, 60 mA and 80 mA. The device is available in SOT-89 packages. Applications • • • • • • • LED Driver Industrial Lamp Indicators Signage Accent Lighting Automotive Constant-Current Source Constant-Current Sink Package Type 3-lead SOT-89 (Top view) VA VB VA NC See Table 2-1 for pin information.  2018 Microchip Technology Inc. DS20006072A -page 1 CL1 Functional Block Diagram Functional Circuit Diagram Equivalent Block Diagram VA VA Control Circuit and Temperature Compensation 20mA 5% VB DS20006072A -page 2 VB  2018 Microchip Technology Inc. CL1 Typical Application Circuit VA Functional Circuit Diagram CL1 Up to 90V +VLED(total) VB + ILED 20mA VA Control Circuit and Temperature Compensation VLED(total) - VB   2018 Microchip Technology Inc. DS20006072A -page 3 CL1 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) ............................................................................................................................ 1.3W † 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 — — 90 V 17.1 18 18.9 mA VA–B = 5V 19 20 21 mA VA–B = 45V 19 22 24.2 mA VA–B = 90V ∆IA–B/∆T — –8.5 — µA/°C TJ –40 — 125 °C RA–B — 17 — kΩ Sym. Min. Typ. Max. Unit Operating Junction Temperature TJ –40 — +125 °C Maximum Junction Temperature TJ(ABSMAX) — — +135 °C TS –55 — +150 °C JA — 133 — Maximum Operating Voltage Current Regulation IA–B Temperature Coefficient VA-B IA–B Operating Junction Temperature Dynamic Resistance VA–B = 45V, TJ = 0°C to 100°C VA–B = 5V to 90V  TEMPERATURE SPECIFICATIONS Parameter Conditions TEMPERATURE RANGE Storage Temperature PACKAGE THERMAL RESISTANCE 3-lead SOT-89   Note 1: °C/W Note 1 Mounted on FR4 board; 25 mm x 25 mm x 1.57 mm DS20006072A -page 4  2018 Microchip Technology Inc. CL1 2.0 PIN DESCRIPTION The details on the pins of CL1 are listed in Table 2-1. Refer to Package Type for the location of pins. TABLE 2-1: PIN FUNCTION TABLE Pin Number Pin Name Description 1 VB Constant-current source 2 VA Supply voltage and constant-current sink 3 NC No connection 4 VA Supply voltage and constant-current sink  2018 Microchip Technology Inc. DS20006072A -page 5 CL1 3.0 APPLICATION INFORMATION 25 IA-B (mA) 20 15 10 5 0 0 10 20 30 40 50 60 70 80 90 100 VA-B (Volts) FIGURE 3-1: 3.1 Output Current vs. Voltage. Application Circuits R VA VB CL1 FIGURE 3-2: DS20006072A -page 6 ILED ~20mA CL1 for 120V Offline LED Driver.  2018 Microchip Technology Inc. CL1 VA VA VA VA Up to 90V +V LED(total) CL1 VB CL1 VB CL1 CL1 VB VB (Note) + ILED ~20mA ILED ~20mA ILED ~20mA ILED ~20mA VLED(total) Note: FIGURE 3-3: 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. CL1 for Multiple LED Strings. VA Up to 90V +VLED(total) CL1 VB VA CL1 VB VA CL1 VB (Note) ILED ~60mA + VLED (total) _ Note: FIGURE 3-4: 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. Higher Current with Multiple CL1 Devices.  2018 Microchip Technology Inc. DS20006072A -page 7 CL1 4.0 PACKAGING INFORMATION 4.1 Package Marking Information 3-lead SOT-89 XXXYWW NNN Legend: XX...X Y YY WW NNN e3 * Note: DS20006072A -page 8 Example CL1823 421 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. CL1 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) MIN A b b1 C D D1 E E1 1.40 0.44 0.36 0.35 4.40 1.62 2.29 2.00 e e1 1.50 BSC 3.00 BSC † NOM - - - - - - - - MAX 1.60 0.56 0.48 0.44 4.60 1.83 2.60 2.29 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.  2018 Microchip Technology Inc. DS20006072A -page 9 CL1 NOTES: DS20006072A -page 10  2018 Microchip Technology Inc. CL1 APPENDIX A: REVISION HISTORY Revision A (December 2018) • Converted Supertex Doc# DSFP-CL1 to Microchip DS20006072A • Removed the 3-lead TO-252 K4 and 3-lead TO92 N3 packages • Changed the package marking format • Added new sections to comply with the standard Microchip format • Made minor text changes throughout the document  2018 Microchip Technology Inc. DS20006072A -page 11 CL1 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 XX - Package Options X - Environmental X Media Type Device: CL1 = 90V 20 mA Simple TemperatureCompensated Constant-Current LED Driver IC Package: N8 = 3-lead SOT-89 Environmental: G = Lead (Pb)-free/RoHS-compliant Package Media Type: (blank) = 2000/Reel for an SOT-89 Package DS20006072A -page 12 Example: a) CL1N8-G: 90V 20 mA Simple TemperatureCompensated Constant-Current LED Driver IC, 3-lead SOT-89 Package, 2000/Reel  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: 978-1-5224-3972-1 == ISO/TS 16949 ==  2018 Microchip Technology Inc. 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