CRD1680-7W CRD1680-7W 7 Watt Reference Design Features General Description * Constant-current Output * Rated Output Power: 5.6W The CRD1680-7W reference design demonstrates the performance of the CS1680 dimmable LED driver for low-voltage lighting with a target output of 430mA driving 4 LEDs in series. It provides exceptional single-lamp and multi-lamp transformer compatibility for non-dimmer systems and dimmer systems paired with electronic and magnetic low-voltage transformers. The form factor is targeted to fit into MR16 LED lamp applications. * Output Voltage: <15V DIMENSIONS (OVERALL) * Flicker-free Dimming * Line Voltage 12VAC/VDC, 10% * Rated Input Power: 7.0W Length * High Efficiency with Magnetic and Electronic Transformers * Low Component Count * Supports Cirrus Logic Product CS1680 Width Height 1.102 28mm 1.024 26mm 0.672 17mm For more information, see Figure 3 on page 6. ORDERING INFORMATION CRD1680-7W-Z 7 Watt Reference Design Supports CS1680 Top Bottom Cirrus Logic, Inc. http://www.cirrus.com Copyright Cirrus Logic, Inc. 2014 (All Rights Reserved) AUG`14 DS1017RD3 CRD1680-7W IMPORTANT SAFETY INSTRUCTIONS Read and follow all safety instructions prior to using this demonstration board. This Engineering Evaluation Unit or Demonstration Board must only be used for assessing IC performance in a laboratory setting. This product is not intended for any other use or incorporation into products for sale. This product must only be used by qualified technicians or professionals who are trained in the safety procedures associated with the use of demonstration boards. Risk of Electric Shock x The open and unprotected boards present a serious risk of electric shock and can cause serious injury or death. Extreme caution needs to be exercised while handling this board. x Avoid contact with the exposed conductor or terminals of components on the board. High voltage is present on exposed conductor and terminals of any components. x Dangerous voltages and/or currents may be internally generated and accessible at various points across the board. x Charged capacitors store high voltage, even after the circuit has been disconnected from the power source. x Make sure that the power source is off before wiring any connection. Make sure that all connectors are well connected before the power source is on. x Follow all laboratory safety procedures established by your employer and relevant safety regulations and guidelines, such as the ones listed under, OSHA General Industry Regulations - Subpart S and NFPA 70E. Suitable eye protection must be worn when working with or around demonstration boards. Always comply with your employer's policies regarding the use of personal protective equipment. All components and metallic parts may be extremely hot to touch when electrically active. Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one nearest to you go to www.cirrus.com IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, the Cirrus Logic logo designs, EXL Core, and the EXL Core logo design are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. 2 DS1017RD3 CRD1680-7W 1. INTRODUCTION The CS1680 is a cascade boost-buck dimmable LED controller IC. The CS1680 uses a Cirrus Logic proprietary intelligent digital control that provides exceptional single-lamp and multi-lamp transformer compatibility for nondimmer systems and dimmer systems paired with electronic and magnetic low-voltage transformers. The CS1680 integrates a continuous conduction mode (CCM) boost converter that provides transformer compatibility and dimmer compatibility with a constant output current buck stage. An adaptive digital algorithm controls the boost stage and dimmer compatibility operation mode to enable flicker-free operation down to 5% output current with leading-edge and trailing-edge dimmers. For in-depth implementation of the CS1680, please consult documents in Further Reading on page 3 for IC and reference design details. The CRD1680-7W board is optimized to deliver low system cost in a high-efficiency, flicker-free, phase-dimmable, solid-state lighting (SSL) solution for incandescent lamp replacement applications. The feedback loop is closed through an integrated digital control system within the IC. Protection algorithms such as output open/short, overcurrent detection, boost overvoltage, and overtemperature thermistors protect the system during abnormal conditions. Details of these features are provided in the CS1680 Dimmable LED Driver IC for Low-voltage Lighting data sheet. The CRD1680-7W board demonstrates the performance of the CS1680. This reference board has been designed for an output load of 4 LEDs in series at a target output current of 430mA (12.0V typical). This document provides the schematic for the board. It includes oscilloscope screen shots that indicate various operating waveforms. Graphs are also provided that document the performance of the board in terms of Efficiency vs. Line Voltage, Output Current vs. Line Voltage, and Output Current vs. Dim Angle for the CS1680 dimmable LED controller IC. Extreme caution needs to be exercised while handling this board. This board is to be used by trained professionals only. Further Reading * * Cirrus Logic, 2014. "Dimmable LED Driver IC for Low-voltage Lighting," DS1055F1, AUG 2014. Cirrus Logic, 2014. "Design Guide for a CS1680 Dimmable LED Driver IC for Low-voltage Lighting," AN379REV3, AUG 2014. NOTE If any other Cirrus Logic document contains information conflicting with the device data sheet, the device data sheet is considered to have the most current and correct data. DS1017RD3 3 120OHM@100MHz FB1 15uH 2 0 R9 93.1 R18 R10 604K 3 C B.2 Changing the silicon to B1 and some components values 1153 C.0 ADDED R11 & C12 1165 D.0 ADDED R12 & R16. CHANGED D11/D13,U2,R11,C12 1194 E.0 change C12 from SMD0805 To through hole TDK FK16X7R1H105K 03/11/14 1225 F CHANGES TO COMPLY WITH RADIATED EMI 07/11/14 1235 F1 CHANGED FB1,FB2 AND R102 08/12/14 08/07/13 09/10/13 10/08/13 11-19-13 12/16/13 B C17 X7R 10uF 93.1 R7 Q5 PMBT4401,215 C7 X7R 4.7uF + R15 35.7K C10 X7R 10uF C11 0603 NO POP C1 X7R 10uF D 1 S G LED OUTPUT LED OUTPUT - 47uH 3 0.10uF X7R C14 C21 X7R 1uF C3 X7R 0.10uF C6 ELEC 180uF 35V L2 E 2 1 Q4 PMBT4401,215 1136 1 R16 1 BAS52-02V H6327 45V C5 X7R 0.10uF E 2 ADDED RED AND BLACK WIRES D2 R13 35.7K 1 B B.1 2 0 D11 1 DATE 1 D7 3 C 2 2 2 BAS52-02V H6327 45V 1127 PMEG4020EP,115 40V FB2 1 VIN+ BZV55-C6V2,115 D9 2 1 D4 2 PMEG4050EP,115 40V 1 D3 2 PMEG4050EP,115 40V 1 D13 R12 DESCRIPTION INITIAL RELEASE D1 120OHM@100MHz 51.1 R3 5.11K REV A.0 PMEG4020EP,115 40V L1 BZV55-C16,115 4 2. SCHEMATIC Q2 IRLML0040TRPBF 2 R5 6.65K C2 27pF COG L 3 35.7K R6 C4 X7R 0.10uF S NC VDD 15 U1 BSTOUT 11 CLAMP VAC BUCKZCD GPIO BUCKGD 9 IRLML0040TRPBF 1 G 5 3 C16 0603 NO POP R31 49.9K 13 2 R35 NO POP CS1680-FZZ TSSOP16 R32 47.5K C13 X7R 1000pF R2 0.51 Ohm C8 0603 NO POP NTC1 0.1mA R1 0.16 Ohm BUCKSENSE BSTSENSE EOTP CTRL1 GND CTRL2 16 R11 1 BSTGD 12 R20 10 7 100K D 2 C9 COG 100pF NC Q3 IRLML0040TRPBF -t Q1 S C12 MLCC 1UF 1 2 1 3 R14 22 OHM R4 20K C20 MLCC 0.68UF D R102 R26 2K R8 604K 6 14 SN74LVC1G14MDBVREP R17 10 1 D5 2 1 NC VCC 5 2 A 3 4 GND Y PMEG4050EP,115 40V 1 D6 2 PMEG4050EP,115 40V U2 10 8 VIN- 22 OHM G 4 N C20 now Through Hole 080-00043-Z1 WIRE-BLACK-STR-28AWG 080-00044-Z1 PART # DS1017RD3 Figure 1. Schematic CRD1680-7W-Z 600-00697-Z1 DRAWN BY D.PAPANDREA/JDG DATE 8/14/2014 REV_F1 ENGINEER SHEET D.PAPANDREA 1 OF 1 SHEET SIZE B CRD1680-7W SHEET TITLE 240-00697-Z1 PCB DWG603-00697-Z1 ASSY DWG600-00697-Z1 SCHEMATIC DWG LBL SUBASSY PROD ID AND REV WIRE-RED-STR-28AWG CRD1680-7W 3. BILL OF MATERIALS BOM: CRD1680-7W-Z Rev: F1 Date Generated: 08/14/2014 Line Item Description Qty UM Reference Designator 0002 CAP 10uF 10% 25V X7R NPb 1206 2 EA C1 C10 0003 CAP 27pF 5% 50V C0G NPb 0603 1 EA C2 0004 CAP 0.10uF 10% 25V X7RLESR NPb 0603 4 EA C3 C4 C5 C14 0005 CAP 180uF 20% 35V AL ELEC NPb RAD 1 EA C6 0006 CAP 4.7uF 10% 35V X7R NPb 0805 1 EA C7 0008 CAP 100pF 5% 50V C0G NPb 0603 1 EA C9 0009 CAP 1uF 10% 50V X7R NPb RAD 1 EA C12 0010 CAP 1000pF 10% 50V X7R NPb 0603 1 EA C13 0011 0012 0013 0014 0015 0016 0017 0018 0019 0021 0022 0023 0024 0025 0026 0027 CAP 10uF 10% 35V X7R MLC NPb 1206 CAP 0.68uF 10% 50V X7R NPb RAD CAP 1uF 10% 25V X7R CER NPb 0603 DIODE SKY BARR 2A 40V NPb SOD128 DIODE SKY BARR 5A 40V NPb SOD128 DIODE ZENER 500mW 16V NPb SOD80C DIODE ZENER 500mW 6.2V NPb SOD80C DIODE SHKY 750mA 45V NPb SC79-2 FE BEAD 3.0A 120ohm@100MHz NPb 0805 IND PWR 15uH 2.4A 20% SHLD NPb SM IND PWR 47uH 1.3A 20% SHLD NPb SM THERM 100K OHM 5% 0.10mA NPb 0603 TRAN MOSFET N-CH 40V 3.6A NPb SOT23 TRAN NPN SW 40V 600mA NPb SOT-23 RES 0.16 OHM 1/4W 1% NPb 0805 RES 0.51 OHM 1/4W 1% NPb 0805 1 1 1 2 4 1 1 2 2 1 1 1 3 2 1 1 EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA C17 C20 C21 D1 D2 D3 D4 D5 D6 D7 D9 D11 D13 FB1 FB2 L1 L2 NTC1 Q1 Q2 Q3 Q4 Q5 R1 R2 0028 RES 5.11k OHM 1/10W 1% NPb 0603 1 EA R3 0029 RES 20k OHM 1/10W 5% NPb 0603 FILM 1 EA R4 0030 0031 0032 0033 RES RES RES RES 6.65k OHM 1/10W 1% NPb 0603 35.7K OHM 1/10W 1% NPb 0603 93.1 OHM 1W 1% FILM NPb 2512 604K OHM 1/10W 1% NPb 0603 1 3 2 2 EA EA EA EA R5 R6 R13 R15 R7 R18 R8 R10 0034 RES 0 OHM 1/10W 5% NPb 0603 FILM 2 EA R9 R16 0035 RES 1 OHM 1/4W 1% NPb 0805 1 EA R11 0036 RES 51.1 OHM 1/10W1% NPb 0603 FILM 1 EA R12 0037 RES 22.0 OHM 1/10W 1% NPb 0603 2 EA R14 R102 0038 RES 10 OHM 1/10W 1% NPb 0603 FILM 2 EA R17 R20 0039 RES 2k OHM 1/10W 5% NPb 0603 FILM 1 EA R26 0040 RES 49.9k OHM 1/10W 1% NPb 0603 1 EA R31 0041 RES 47.5k OHM 1/10W 1% NPb 0603 1 EA R32 0043 0044 IC CRUS TRIAC DIM LV 12V NPb TSOP16 IC INV SNGL SCHMIT-TRIG NPb SOT23-5 1 1 EA EA U1 U2 0045 WIRE 28AWG PTFE INSULATED STRND RED 3 IN 0046 WIRE 28AWG PTFE INSUL STRND BLACK 3 IN Manufacturer Manufacturer Part Number TAIYO YUDEN KEMET NIC COMPONENTS MURATA PANASONIC PANASONIC TDK KEMET Walsin TDK KEMET KOA PANASONIC NIC COMPONENTS TAIYO YUDEN TDK TDK NXP NXP NXP NXP INFINEON WURTH ELECTRONICS TAIYO YUDEN TAIYO YUDEN MURATA INTERNATIONAL RECTIFIER NXP PANASONIC PANASONIC DALE KOA PANASONIC WALSIN DALE KOA PANASONIC DALE YAGEO ROHM YAGEO DALE NIC COMPONENTS PANASONIC VENKEL WALSIN STACKPOLE DALE KOA PANASONIC VENKEL PANASONIC DALE VENKEL PANASONIC WALSIN DALE KOA PANASONIC WALSIN DALE KOA PANASONIC WALSIN DALE KOA PANASONIC WALSIN CIRRUS LOGIC TEXAS INSTRUMENTS TMK316B7106KL-TD C0603C270J5GAC NMC0603NPO270J50TRPF GRM188R71E104KA01D EEUFR1V181B EEUFR1V181 C2012X7R1V475K125AC C0603C101J5GAC 0603N101J500LT FK16X7R1H105K C0603C102K5RAC X7R0603HTTD102K ECJ1VB1H102K NMC0603X7R102K50TRPF GMK316AB7106KL-TR FK16X7R1H684K CGA3E1X7R1E105K080AC PMEG4020EP,115 PMEG4050EP,115 BZV55-C16,115 BZV55-C6V2,115 BAS52-02V H6327 742792023 NRS8040T150MJGJ NR6045T470M NCP18WF104J03RB IRLML0040TRPBF PMBT4401,215 ERJS6SFR16V ERJS6QFR51V CRCW06035K11FKEA RK73H1JTTD5111F ERJ3EKF5111V WR06X5111FTL CRCW060320K0JNEA RK73B1JTTD203J ERJ3GEYJ203V CRCW06036K65FKEA RC0603FR-0735K7L MCR100JZHF93R1 RC0603FR-07604KL CRCW06030000Z0EA NRC0606ZOTRF ERJ3EKF0R00V CR0603-10W-000T WR06X000PTL RNCP0805FTD1R00 CRCW060351R1FKEA RK73H1JTTD51R1F ERJ3EKF51R1V CR0603-10W-51R1FT ERJ3EKF22R0V CRCW060310R0FKEA C0603-10W-10R0FT ERJ3EKF10R0V ER06X10R0FTL CRCW06032K00JNEA RK73B1JTTD202J ERJ3GEYJ202V WR06X202JTL CRCW060349K9FKEA RK73H1JTTD4992F ERJ3EKF4992V WR06X4992FTL CRCW060347K5FKEA RK73H1JTTD4752F ERJ3EKF4752V WR06X4752FTL CS1680-FZZ/B1 SN74LVC1G14MDBVREP W1 ANY SOURCE 080-00043-Z1 W2 ANY SOURCE 080-00044-Z1 Figure 2. Bill of Materials DS1017RD3 5 6 4. BOARD LAYOUT CRD1680-7W DS1017RD3 Figure 3. PCB Dimensions DS1017RD3 7 CRD1680-7W Figure 4. Top Silkscreen 8 CRD1680-7W DS1017RD3 Figure 5. Bottom Silkscreen DS1017RD3 9 CRD1680-7W Figure 6. Top Routing, Layer 1 10 CRD1680-7W DS1017RD3 Figure 7. Power Plane, Layer 2 DS1017RD3 CRD1680-7W 11 Figure 8. Ground Plane, Layer 3 12 CRD1680-7W DS1017RD3 Figure 9. Bottom Routing, Layer 4 CRD1680-7W 5. THERMAL IMAGING Figure 10. Top Thermal Figure 11. Bottom Thermal DS1017RD3 13 CRD1680-7W 6. DIMMER COMPATIBILITY The boost stage is a low-side asynchronous boost converter. Once the CS1680 reaches its UVLO start threshold and begins normal operation, the CS1680 controller executes a dimmer switch detection algorithm to set the operating state of the IC. Table 1 summarizes the system operating state that produced the empirical dimmer compatibility results. MR16 Lamp with a CS1680 (12VAC) Date 09/09/2013 Power Factor1,6 0.98 Vendor Cirrus Logic IEC-61000-3-2 Compliant (Y/N) Input Voltage (RMS) 12 EN55015 Compliant (Y/N) 3,6 MR16 Nominal Input Power Model # CRD1680-7W Maximum Input Power (W)2,6 CS1680 Output Voltage Topology Boost/Buck Output Current (mA)1,4 N Output Current Ripple 120Hz (mA) Efficiency (%) Notes: 14 76.6% Output Power (W) 1,6 1. Tested at nominal input voltage, nominal input frequency and without a dimmer 2. Tested over input voltage tolerances for steady-state operation 3. Compliant with IEC 61000-3-2 Class C < 25W 4. Average 5. Peak-to-peak 6. Measured with Chroma 66202 Power Analyzer 7. MR16 lamp efficiency is dependent on LED output voltage VOUT 6.79 7.0 (V)1,4 IC 7 Y (W)1,6 Form Factor Isolation (Y/N) Y 12.27 424 1,5 0 5.21 DS1017RD3 DS1017RD3 6.1 120VAC Dimmer Compatibility Table 1 reports the empirical dimmer compatibility results when detectable inputs to the dimmer compatibility circuit are generated using a 120VAC transformer paired with a leading-edge or trailing-edge dimmer. Table 1: 120VAC, 60Hz Mains Power System Lutron DVLV-600P Leading Edge Dimmer1 Flicker Free2 Steady-State Transformer3 # of lamps 1 3 6 Hatch LS1250EN Y Y Y Lightech LET60 Y Y Y Hatch RS12-80M Y Y Y Hatch VS12-60WD Y Y Y Osram ET-MZ 60 Y Y N Eurofase Y N N Notes: 1. Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 5.2 5.2 5.2 80 80 70 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 90 70 1 3 6 - - - Y Y Y Y Y Y Y Y Y Y Y Y Y Y N Lutron SELV-300P Trailing Edge Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 - - - - - - 5.2 5.2 5.2 100 100 90 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 80 5.2 5.2 5.2 100 100 70 5.2 5.2 5.2 100 100 80 1 3 6 - - - Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Levitron 6615 Trailing Edge Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 - - - - - - 5.2 5.2 5.2 100 100 80 5.2 5.2 5.2 100 100 80 5.2 5.2 5.2 100 90 80 5.2 5.2 5.2 100 90 70 5.2 5.2 5.2 100 100 70 1 3 6 - - - Y Y Y Y Y Y Y Y Y Y Y Y Y Y N Min Max # of lamps 1 3 6 - - - - - - 20 10 5.2 100 100 100 30 10 10 100 100 100 10 5.2 5.2 100 100 90 10 5.2 5.2 100 100 80 10 10 10 100 100 90 This document includes trademarks, trade names, brands, logos, product names and/or product identifiers of companies other than Cirrus Logic, Inc. All such trademarks, trade names, brands, logos, product names, and product identifiers are for identification purposes only and are the property of their respective owners, who are not affiliated with Cirrus Logic. Please visit the respective sites of those owners to obtain a listing or understanding of their trademark rights. This document also includes results from testing performed by Cirrus Logic for its own purposes and for which there are currently no industry standards. While this testing was applied objectively, its results may include at least some degree of subjectivity. The testing or test results should not be interpreted as any comment on the overall quality or suitability of any tested products. Flicker-free results are reported at different conduction angle ranges and dependent on transformer and dimmer pairing. Empirical results are recorded only with a magnetic transformer paired with a lead-edge dimmer. 15 CRD1680-7W 2. 3. Iout (%) Lutron DVELV-300P Trailing Edge 16 6.2 230VAC Dimmer Compatibility Table 2 reports the empirical dimmer compatibility results when detectable inputs to the dimmer compatibility circuit are generated using a 230VAC transformer paired with a leading-edge or trailing-edge dimmer. Table 2: 230VAC, 50Hz Mains Power System HPM CAT400L Leading Edge Dimmer1 Flicker Free2 Steady-State Transformer3 # of lamps 1 3 6 Niko 320-00001 Y Y Y Osram Parrot 105 Y Philips S60 Y Primaline 105 Y Tridonic Possum Y Notes: 1. Y Y Y Y Y Y Y Y Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 5.2 5.2 5.2 100 90 100 5.2 5.2 5.2 100 100 40 5.2 5.2 5.2 100 90 80 5.2 5.2 5.2 100 100 90 5.2 5.2 5.2 100 100 80 1 3 6 Y Y Y Y Y Y N Y N Y Y Y Y N Y HPM CAT400T Trailing Edge Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 80 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 40 5.2 5.2 5.2 100 100 100 1 3 6 - - - Y Y Y Y Y Y Y Y N Y Y N Clipsal 32E450TM Trailing Edge Min Flicker Free2 Max # of lamps Steady-State Iout (%) # of lamps 1 3 6 - - - - - - 5.2 5.2 5.2 80 80 60 5.2 5.2 5.2 100 90 80 5.2 5.2 5.2 100 80 90 5.2 5.2 5.2 80 70 60 1 3 6 - - - Y Y Y Y Y Y Y Y Y Y Y Y Min Max # of lamps 1 3 6 - - - - - - 5.2 5.2 5.2 100 100 80 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 100 5.2 5.2 5.2 100 100 60 This document includes trademarks, trade names, brands, logos, product names and/or product identifiers of companies other than Cirrus Logic, Inc. All such trademarks, trade names, brands, logos, product names, and product identifiers are for identification purposes only and are the property of their respective owners, who are not affiliated with Cirrus Logic. Please visit the respective sites of those owners to obtain a listing or understanding of their trademark rights. This document also includes results from testing performed by Cirrus Logic for its own purposes and for which there are currently no industry standards. While this testing was applied objectively, its results may include at least some degree of subjectivity. The testing or test results should not be interpreted as any comment on the overall quality or suitability of any tested products. Flicker-free results are reported at different conduction angle ranges and dependent on transformer and dimmer pairing. Empirical results are recorded only with a magnetic transformer paired with a lead-edge dimmer. DS1017RD3 CRD1680-7W 2. 3. Iout (%) Busch 2247U Leading Edge CRD1680-7W 7. INDUCTOR CONSTRUCTION The CS1680 integrates a continuous conduction mode (CCM) boost converter that provides transformer compatibility and dimmer compatibility with a constant output current buck stage. The following sections describe the boost and buck inductors installed on the CRD1680-7W. 7.1 Boost Inductor The CS1680 uses an adaptive digital algorithm to control the boost stage and dimmer compatibility operation mode, which enables flicker-free operation down to 5% output current with leading-edge and trailing-edge dimmers. Boost inductor L1 is selected to be a standard TAIYO YUDEN power inductor. 7.1.1 Electrical Specifications Characteristics conditions: * Operating temperature range: -25 C to +125 C (including coil heat) Parameter Condition Symbol Value Unit TAIYO YUDEN Boost Inductor #NRS8040T150MJGJ Inductance (Note 1) fmeasured=100kHz 15 (20%) H DC Resistance (Note 1) Maximum 0.065 Rated Current 2900 mA Saturation Current Notes: 7.2 1. Measured across pins 1 and 2 Buck Inductor The CS1680 buck stage is a constant current-regulated DC-DC converter capable of delivering the highest possible efficiency with constant current output while minimizing line frequency ripple. Buck inductor L2 is selected to be a standard TAIYO YUDEN power inductor. 7.2.1 Electrical Specifications Characteristics conditions: * Operating temperature range: -25 C to +125 C (including coil heat) Parameter Condition Symbol Value Unit TAIYO YUDEN Buck Inductor #NR6045T470M Inductance (Note 1) fmeasured=100kHz 47 (20%) H DC Resistance (Note 1) tDCR =20C 0.286 Rated Current 1300 mA Saturation Current Notes: 1. Measured across pins 1 and 2 DS1017RD3 17 CRD1680-7W 8. PERFORMANCE PLOTS (120VAC) 0.5 Output Current (A) 0.4 Mode 2 Mode 1 0.3 Mode 3 0.2 0.1 Mode 1 - Hatch LS1250EN w/Leading-edge Waveform Mode 2 - Lightech LET60 w/Trailing-edge Waveform Mode 3 - Lightech LET60 w/Leading-edge Waveform 0 20 40 60 80 100 120 140 160 180 Dim Angle (o) Figure 12. Typical CRD1680-7W Output Current vs. Dim Angle, 120VAC 12 10 Input Power (W) 8 Mode 3 6 Mode 1 Mode 2 4 2 Mode 1 - Hatch LS1250EN w/Leading-edge Waveform Mode 2 - Lightech LET60 w/Trailing-edge Waveform Mode 3 - Lightech LET60 w/Leading-edge Waveform 0 20 40 60 80 100 Dim Angle (o) 120 140 160 180 Figure 13. Typical CRD1680-7W Input Power vs. Dim Angle, 120VAC 18 DS1017RD3 CRD1680-7W 1.0 Output Current (A) 0.8 0.6 Magnetic Transformer 0.4 Electronic Transformer 0.2 Magnetic Transformer - Hatch LS1250EN Electronic Transformer - Lightech LET60 0.0 108 112 116 120 124 128 132 Line Voltage (V) Figure 14. CRD1680-7W Output Current vs. Line Voltage, 108VAC to 132VAC 90 85 Efficiency (%) 80 Magnetic Transformer 75 70 Electronic Transformer 65 Magnetic Transformer - Hatch LS1250EN Electronic Transformer - Lightech LET60 60 108 112 116 120 124 128 132 Line Voltage (V) Figure 15. Typical CRD1680-7W Efficiency vs. Line Voltage, 108VAC to 132VAC DS1017RD3 19 CRD1680-7W 1.00 Magnetic Transformer 0.95 Power Factor 0.90 0.85 Electronic Transformer 0.80 0.75 0.70 0.65 Magnetic Transformer - Hatch LS1250EN Electronic Transformer - Lightech LET60 0.60 108 112 116 120 124 128 132 Line Voltage (V) Figure 16. CRD1680-7W Power Factor vs. Line Voltage, 108VAC to 132VAC 20 DS1017RD3 CRD1680-7W Figure 17. No-dimmer CRD1680-7W Output Mode1, Steady-state Figure 18. Maximum CRD1680-7W Output Mode1, Steady-state DS1017RD3 21 CRD1680-7W Figure 19. Maximum CRD1680-7W Output Mode2, Steady-state Figure 20. Maximum CRD1680-7W Output Mode3, Steady-state 22 DS1017RD3 CRD1680-7W Figure 21. CRD1680-7W Output Current at Minimum Dim Angle, Mode1, Turn-on Waveforms Figure 22. CRD1680-7W Output Current at Maximum Dim Angle, Mode1, Turn-on Waveforms DS1017RD3 23 CRD1680-7W Figure 23. CRD1680-7W Output Current at Minimum Dim Angle, Mode2, Turn-on Waveforms Figure 24. CRD1680-7W Output Current at Maximum Dim Angle, Mode2, Turn-on Waveforms 24 DS1017RD3 CRD1680-7W Figure 25. CRD1680-7W Output Current at Minimum Dim Angle, Mode3, Turn-on Waveforms Figure 26. CRD1680-7W Output Current at Maximum Dim Angle, Mode3, Turn-on Waveforms DS1017RD3 25 CRD1680-7W 9. PERFORMANCE PLOTS (230VAC) 0.5 Output Current (A) 0.4 Mode 1 Mode 3 Mode 2 0.3 0.2 0.1 Mode 1 - Niko 320-0001 w/Leading-edge Waveform Mode 2 - Parrot 105 w/Trailing-edge Waveform Mode 3 - Parrot 105 w/Leading-edge Waveform 0 20 40 60 80 100 120 Dim Angle 140 160 180 (o) Figure 27. Typical CRD1680-7W Output Current vs. Dim Angle, 230VAC 12 10 Input Power (W) 8 Mode 3 6 Mode 2 Mode 1 4 2 Mode 1 - Niko 320-0001 w/Leading-edge Waveform Mode 2 - Parrot 105 w/Trailing-edge Waveform Mode 3 - Parrot 105 w/Leading-edge Waveform 0 20 40 60 80 100 Dim Angle 120 140 160 180 (o) Figure 28. Typical CRD1680-7W Input Power vs. Dim Angle, 230VAC 26 DS1017RD3 CRD1680-7W 1.0 0.8 Output Current (A) 0.6 Magnetic Transformer 0.4 Electronic Transformer 0.2 Magnetic Transformer - Niko 320-0001 Electronic Transformer - Parrot 105 0.0 208 212 216 220 224 228 232 236 240 244 248 252 Line Voltage (V) Figure 29. CRD1680-7W Output Current vs. Line Voltage, 208VAC to 252VAC 90 85 Efficiency (%) 80 Magnetic Transformer 75 70 65 Electronic Transformer Magnetic Transformer - Niko 320-0001 Electronic Transformer - Parrot 105 60 208 212 216 220 224 228 232 236 240 244 248 252 Line Voltage (V) Figure 30. Typical CRD1680-7W Efficiency vs. Line Voltage, 208VAC to 252VAC DS1017RD3 27 CRD1680-7W 1 Magnetic Transformer 0.95 Power Factor 0.9 0.85 Electronic Transformer 0.8 0.75 0.7 0.65 Magnetic Transformer - Niko 320-0001 Electronic Transformer - Parrot 105 0.6 208 212 216 220 224 228 232 236 240 244 248 252 Line Voltage (V) Figure 31. CRD1680-7W Power Factor vs. Line Voltage, 208VAC to 252VAC 28 DS1017RD3 CRD1680-7W 10. CONDUCTED EMI Device Under Test: CRD1680-7W-Z Operating Conditions: 230V 50Hz Test Specification: IEC 61000-3-2 Operator Name: DLP Scan Settings (1 Range) Frequencies Receiver Settings Start Stop Step Res BW M-Time Atten Preamp 150kHz 30MHz 4.5kHz 9kHz (6dB) 50ms Auto Off Final Measurement Detectors: PK+, AV Peaks: 8 Meas Time: 1s Acc. Margin: 12dB Figure 32. CRD1680-7W Conducted EMI DS1017RD3 29 CRD1680-7W 11. RADIATED EMI Device Under Test: CRD1680-7W-Z Operator Name: DLP Test Specification: CISPR 16-1-4:2007 EN55022 Compliant (Y/N): Y Antenna Orientation: Horizontal/Vertical Frequency Range: 30MHz to 1GHz EUT Line Voltage: 230 VAC EUT Power Frequency: 50Hz Final Measurement Figure 33. CRD1680-7W Radiated EMI - Horizontal Polarity Figure 34. CRD1680-7W Radiated EMI - Vertical Polarity 30 DS1017RD3 CRD1680-7W 12. REVISION HISTORY Revision Date Changes RD1 SEP 2013 Initial release RD2 NOV 2013 Content addition and clarification for revision B silicon RD3 JAN 2014 Content clarification for PCBA revision D RD4 SEP 2014 Content addition DS1017RD3 31 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Cirrus Logic: CRD1680-7W-Z