LC5523F Single-Stage Power Factor Corrected Off-Line Switching Regulator IC Features and Benefits Description * Integrated on-width control circuit (it realizes high power factor by average current control) * Integrated startup circuit (no external startup circuit necessary) * Integrated soft-start circuit (reduces power stress during start-up on the incorporated power MOSFET and output diode) * Integrated bias assist circuit (improves the startup performance, suppresses VCC voltage droop during operation, allows reduction of VCC capacitor value as well as use of a ceramic capacitor) * Integrated Leading Edge Blanking (LEB) circuit * Integrated maximum on-time limit circuit * Dual-chip structure, with an avalanche-guaranteed power MOSFET (allows simplified surge suppressing circuits) * Protection features: Overcurrent protection (OCP): pulse-by-pulse Overvoltage protection (OVP): pins VCC, OVP, and OCP, intermittent oscillation operation Overload protection (OLP): intermittent oscillation operation Thermal shutdown (TSD): halts switching operation and latches in the off-state The LC5500 series is a quasi-resonant topology switching power supply IC, designed for input capacitorless applications, and making it possible for systems to comply with the harmonics standard (IEC61000-3-2 class C). It incorporates separate controller and power MOSFET chips. The controller adapts the average current control method for realizing high power factors, and the quasi-resonant topology contributes to high efficiency and low EMI noise. The rich set of protection features helps to realize low component counts, and high performance-to-cost power supply. Package: 7-pin TO-220F LF 3052 The LC5523F is intended for isolated designs. The incorporated MOSFET has a VDSS(min) rating of 650 V and RDS(on)(max) of 1.9 . It is capable of a maximum output power of 60 W on 230 VAC supply and 40 W on universal supply based on the thermal rating. Note that the maximum output power can be up to 120% to 140% of this value. However, it may be limited in applications with low output voltage or short duty cycle. Not to scale LF 3051 LF 3054 Typical Application VIN (AC) PC2 D/ST 1 - + LC5523F VCC Controller OVP Chip FB S/GND 2 OCP 4 7 PC2 6 5 PC1 48102.004 LED PC1 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Selection Guide Part Number LC5523F Package Packing TO-220F (specify leadform when ordering) 50 pieces per tube Absolute Maximum Ratings TA = 25C, unless otherwise specified Characteristic Drain Current1 Single Pulse Avalanche Energy2 Symbol IDPeak EAS Notes Pins Rating Unit Single pulse 1-2 9.2 A ILPeak = 2.9 A, VDD = 99 V, L = 20 mH 1-2 99 mJ Input Voltage in Control Part VCC 4-2 35 V OCP Terminal Voltage VOCP 5-2 -2.0 to 5.0 V FB Terminal Voltage VFB 6-2 -0.3 to 7.0 V OVP Terminal Voltage VOVP 7-2 -0.3 to 5.0 V With infinite heatsink 1-2 20.2 W Without heatsink 1-2 1.8 W Power Dissipation of MOSFET3 PD1 Internal Leadframe Temperature in Operation TF -20 to 115 C Operating Ambient Temperature TOP -55 to 115 C Storage Temperature Tstg -55 to 125 C Channel Temperature Tch 150 C 1Refer to MOSFET Safe Operating Area Curve. to MOSFET Avalanche Energy Derating Coefficient Curve. 3Refer to MOSFET Temperature versus Power Dissipation Curve. 2Refer Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 2 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Functional Block Diagram VCC 4 Controller Chip Startup Thermal Shutdown Reg UVLO Drv Bias OVP 7 1 D/ST OVP 2 S/GND S RQ OCP 5 Bottom Detection OCP OSC OLP LEB Feedback Control 6 FB Reg LC5523F Terminal List Table Pin-out Diagrams D/ST 1 S/GND 2 NC 3 VCC 4 OCP FB (LF 3051) 5 6 OVP 7 D/ST 1 S/GND 3 OVP 1 D/ST 2 S/GND Function MOSFET drain terminal and input of the startup current MOSFET source and GND terminal for the Controller chip 3 NC 4 VCC No connection Supply voltage input 5 OCP Overcurrent protection and quasi-resonant signal input terminal 6 FB 7 OVP Feedback signal input and Overload Protection (OLP) signal input Overvoltage Protection (OVP) signal input (LF 3052) 4 OCP FB Name 2 NC VCC Number 5 6 7 1 D/ST 2 S/GND 3 NC 4 VCC 5 OCP 6 FB 7 OVP (LF 3054) Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 3 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F ELECTRICAL CHARACTERISTICS (Controller Chip)1 TA = 25C, VCC = 20 V, unless otherwise specified Characteristics Symbol Test Conditions Pins Min. Typ. Max. Unit Power Supply Startup Operation Operation Start Voltage VCC(ON) 4-2 13.8 15.1 17.3 V Operation Stop Voltage VCC(OFF) 4-2 8.4 9.4 10.7 V ICC(ON) 4-2 - - 3.7 mA VSTARTUP 1-2 42 57 72 V 4-2 -5.5 -3.0 -1.0 mA Circuit Current in Operation Startup Circuit Operation Voltage Startup Current ICC(STARTUP) VD/ST = 100 V, VCC = 13 V Startup Current Supplying Threshold Voltage-1 VCC(BIAS)1 VD/ST = 100 V 4-2 9.5 11.0 12.5 V Startup Current Supplying Threshold Voltage-2 VCC(BIAS)2 VD/ST = 100 V 4-2 14.4 16.6 18.8 V fOSC 1-2 11.0 14.0 18.0 kHz Maximum On Time tON(MAX) 1-2 30.0 40.0 50.0 s FB Terminal Minimum Voltage in Feedback Operation VFB(MIN) 6-2 0.55 0.90 1.25 V Maximum Feedback Current IFB(MAX) 6-2 -10 -25 -40 A Leading Edge Blanking Time tBW 5-2 - 500 - ns Quasi-Resonant Operation Threshold Voltage-1 VBD(TH1) 5-2 0.14 0.24 0.34 V Quasi-Resonant Operation Threshold Voltage-2 VBD(TH2) 5-2 0.12 0.17 0.22 V Overcurrent Detection Threshold Voltage VOCP 5-2 -0.54 -0.60 -0.66 V OCP Terminal Source Current Normal Operation Oscillation Minimum Frequency Protection Operation IOCP 5-2 -120 -40 -10 A OVP Operation Voltage of OCP Terminal VOCP(OVP) 5-2 2.2 2.6 3.0 V OLP Threshold Voltage VFB(OLP)1 6-2 5.0 5.5 6.0 V OLP Threshold Voltage VFB(OLP)2 6-2 4.1 4.5 4.9 V OVP Terminal Threshold Voltage VOVP 7-2 1.6 2.0 2.4 V OVP Operation Voltage of VCC Terminal VCC(OVP) 4-2 28.5 31.5 34.0 V TJ(TSD) - 135 - - C Thermal Shutdown Operating Temperature 1The 2The current ratings are based on those of the IC, and plus (+) represents sink and minus (-) represents source. relation of VCC(BIAS)1 > VCC(OFF) is applied for each product. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 4 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F ELECTRICAL CHARACTERISTICS (MOSFET) TA = 25C, VCC = 20 V, unless otherwise specified Characteristics Drain-to-Source Breakdown Voltage Drain Leakage Current Circuit Current in Operation Switching Time Thermal Resistance Symbol Pins Min. Typ. Max. Unit VDSS IDSS = 300 A 1-2 650 V IDSS VDSS = 650 V 1-2 300 A IDS = 1.1 A 1-2 1.9 RDS(on) Test Conditions* tr Rch-F Between channel and internal leadframe Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 1-2 400 ns 3.1 C/W 5 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Characteristic Performance MOSFET Safe Operating Area Curve 10 0.1 ms 100 Drain current limited by on-resistance 80 60 40 20 0 1 Drain Current, ID (A) Safe Operating Area Temperature Derating Coefficient (%) S. O. A. Temperature Derating Coefficient Curve 0 25 50 75 100 125 1 ms 0.1 150 To use this graph, apply the S.O.A temperature derating coefficient taken from the graph at the left Channel Temperature, Tch (C) 0.01 10 100 1000 Drain-to-Source Voltage, VDS (V) MOSFET Temperature versus Power Dissipation Curve Allowable Power Dissipation, PD1 (W) 100 80 60 40 20 0 25 50 75 100 125 150 30 25 20.2 20 With infinite heatsink 15 10 5 10 Without heatsink 1.8 0 0 25 Channel Temperature, Tch (C) Transient Thermal Resistance, Rch-c (C/W) EAS Temperature Derating Coefficient (%) MOSFET Avalanche Energy Derating Coefficient Curve 50 75 100 115 125 150 Ambient Temperature, TA (C) Transient Thermal Resistance Curve 1 0.1 0.01 0.001 10-6 10-5 10-4 10-3 10-2 10-1 Time (s) Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 6 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Package Outline Drawing, TO-220F Leadform 3051 2.6 0.2 15 0.3 5.6 Gate burr O3.2 0.2 4.2 0.2 2.8 +0.2 10 0.2 LC 1.1 a 2.6 0.1 At base of pin 10.4 0.5 7-0.62 0.15 +0.2 7-0.55 -0.1 R-end R-end +0.2 0.45 -0.1 5xP1.170.15 5.850.15 2 0.15 50.5 50.5 b At base of pin 5.080.6 2.540.6 At tip of pin At tip of pin 2 1 4 3 6 5 7 0.5 0.5 Front view Unit: mm Package: TO-220F-7L (Sanken designator FMY207) (Sanken leadform #3051) Leadframe material: Cu Pin plating: Solder Plating Weight: Approximately 1.45 g 0.5 0.5 Side view a: Part # 5523F b: Lot number st 1 letter: Last digit of year nd 2 letter: Month Jan to September: Numeric October: O November: N December: D rd th 3 and 4 letter: Date 01 to 31: Numeric th 5 letter: Internal use control number Leadframe plating Pb-free. Device composition compliant with the RoHS directive. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 7 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Package Outline Drawing, TO-220F Leadform 3052 2.6 0.2 LC 15 0.3 5.6 Gate burr O3.2 0.2 4.2 0.2 2.8 +0.2 10 0.2 a 1.1 2.6 0.1 At base of pin 50.5 b 10.4 0.5 7-0.62 0.15 +0.2 7-0.55 -0.1 0.45 +0.2 -0.1 5xP1.170.15 5.850.15 2 0.15 R-end 5.080.6 At base of pin At tip of pin 0.5 0.5 0.5 Front View 1 0.5 Side View 2 3 4 5 6 7 Unit: mm Package: TO-220F-7L (Sanken designator FMY207) (Sanken leadform #3052) Leadframe material: Cu Pin plating: Solder Plating Weight: Approximately 1.45 g Leadframe plating Pb-free. Device composition compliant with the RoHS directive. a: Part # 5523F b: Lot number st 1 letter: Last digit of year nd 2 letter: Month Jan to September: Numeric October: O November: N December: D rd th 3 and 4 letter: Date 01 to 31: Numeric th 5 letter: Internal use control number Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 8 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F 2.8 0.2 Package Outline Drawing, TO-220F Leadform 3054 2.6 0.2 a b 2.8 0.5 At tip of pin 2.5 0.5 LC 15 0.3 (5.6) Gate burr 4.20.2 O3.2 0.2 10 0.2 (1.1) 3-( R1) 2.6 0.1 At base of pin At base of pin 0.5 At tip of pin 5xP 1.17 0.15 = 5.85 0.15 2 0.15 +0.2 0.45 -0.1 7-0.55 +0.2 -0.1 5 0.5 7-0.62 0.15 3.80.5 0.5 0.5 Plan View 1 0.5 Side View 2 3 4 5 6 7 Unit: mm Package: TO-220F-7L (Sanken designator FMY207) (Sanken leadform #3054) Leadframe material: Cu Pin plating: Solder Plating Weight: Approximately 1.45 g a: Part # 5523F b: Lot number st 1 letter: Last digit of year nd 2 letter: Month Jan to September: Numeric October: O November: N December: D rd th 3 and 4 letter: Date 01 to 31: Numeric th 5 letter: Internal use control number Leadframe plating Pb-free. Device composition compliant with the RoHS directive. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 9 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Packing Specifications, TO-220F Leadforms 3051 and 3052 5 40 2 14. 5 4.5 17.3 ( 15.9 ) 34.5 11 15. 6 0.3 6 4.8 0.3 2. 1 Tube dimensions (mm) 50 pieces per tube 62 0 125 1.5 0.3 ANTISTATIC 185 Carton dimensions (mm) 36 tubes per carton (maximum) 1800 pieces maximum per carton Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 10 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Packing Specifications, TO-220F Leadform 3054 5 40 2 7.2 15.8 35 9.9 4.8 17.8 2.6 15 3.4 0.4 1.8 14.5 Tube dimensions (mm) 50 pieces per tube 621 137 2.5 AN T I S T A T IC 186 Carton dimensions (mm) 40 tubes per carton (maximum) 2000 pieces maximum per carton Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 11 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Because reliability can be affected adversely by improper storage environments and handling methods, please observe the following cautions. Cautions for Storage * Ensure that storage conditions comply with the standard temperature (5C to 35C) and the standard relative humidity (around 40% to 75%); avoid storage locations that experience extreme changes in temperature or humidity. * Avoid locations where dust or harmful gases are present and avoid direct sunlight. * Reinspect for rust on leads and solderability of products that have been stored for a long time. Cautions for Testing and Handling When tests are carried out during inspection testing and other standard test periods, protect the products from power surges from the testing device, shorts between the product pins, and wrong connections. Remarks About Using Silicone Grease with a Heatsink * When silicone grease is used in mounting this product on a heatsink, it shall be applied evenly and thinly. If more silicone grease than required is applied, it may produce excess stress. * Volatile-type silicone greases may crack after long periods of time, resulting in reduced heat radiation effect. Silicone grease with low consistency (hard grease) may cause cracks in the mold resin when screwing the product to a heatsink. * Our recommended silicone greases for heat radiation purposes, which will not cause any adverse effect on the product life, are indicated below: Type Suppliers G746 Shin-Etsu Chemical Co., Ltd. YG6260 Momentive Performance Materials Holding, Inc. SC102 Dow Corning Toray Co., Ltd. Soldering * When soldering the products, please be sure to minimize the working time, within the following limits: 2605C 10 s 3505C 3 s (solder iron) * Soldering iron should be at a distance of at least 1.5 mm from the body of the products Electrostatic Discharge * When handling the products, the operator must be grounded. Grounded wrist straps worn should have at least 1 M of resistance from the operator to ground to prevent shock hazard, and it should be placed near the operator. * Workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. * When using measuring equipment such as a curve tracer, the equipment should be grounded. * When soldering the products, the head of soldering irons or the solder bath must be grounded in other to prevent leak voltages generated by them from being applied to the products. * The products should always be stored and transported in Sanken shipping containers or conductive containers, or be wrapped in aluminum foil. Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 12 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F The products described herein are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken and Allegro reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Therefore, the user is cautioned to verify that the information in this publication is current before placing any order. When using the products described herein, the applicability and suitability of such products for the intended purpose shall be reviewed at the users responsibility. Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken, Allegro, or any third party which may result from its use. When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). Please return to us this document with your signature(s) or seal(s) prior to the use of the products herein. When considering the use of Sanken products in the applications where higher reliability is required (traffic signal control systems o equipment, fire/ crime alarm systems, various safety devices, etc.), please contact your nearest Sanken sales representative to discuss, and then return to us this document with your signature(s) or seal(s) prior to the use of the products herein. The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. Anti radioactive ray design is not considered for the products listed herein. The information included herein is believed to be accurate and reliable. Application and operation examples described in this publication are given for reference only and Sanken and Allegro assume no responsibility for any infringement of industrial property rights, intellectual property rights, or any other rights of Sanken or Allegro or any third party that may result from its use. The contents in this document must not be transcribed or copied without Sanken's written consent. Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken's distribution network. Copyright (c) 2010 Allegro MicroSystems, Inc. This datasheet is based on Sanken datasheet SSE-24682 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 13 Single-Stage Power Factor Corrected Off-Line Switching Regulator IC LC5523F Worldwide Contacts Asia-Pacific China Sanken Electric Hong Kong Co., Ltd. Suite 1026, Ocean Centre Canton Road, Tsimshatsui Kowloon, Hong Kong Tel: 852-2735-5262, Fax: 852-2735-5494 Sanken Electric (Shanghai) Co., Ltd. Room 3202, Maxdo Centre Xingyi Road 8, Changning District Shanghai, China Tel: 86-21-5208-1177, Fax: 86-21-5208-1757 Korea Sanken Electric Korea Co., Ltd. Samsung Life Yeouido Building 16F 23-10, Yeouido-Dong, Yeongdeungpo-gu Seoul 150-734, Korea Tel: 82-2-714-3700, Fax: 82-2-3272-2145 Singapore Sanken Electric Singapore Pte. Ltd. 152 Beach Road, #10-06 The Gateway East Singapore 189721 Tel: 65-6291-4755, Fax: 65-6297-1744 Sanken Electric (Shanghai) Co., Ltd. Shenzhen Office Room 1013, Xinhua Insurance Building Mintian Road, Futian District Shenzhen City, Guangdong, China Tel: 86-755-3391-9356/9358, Fax: 86-755-3391-9368 Europe Sanken Power Systems (UK) Limited Pencoed Technology Park Pencoed, Bridgend CF35 5HY, United Kingdom Tel: 44-1656-869-100, Fax: 44-1656-869-162 Taiwan Sanken Electric Co., Ltd. Room 1801, 18th Floor 88 Jung Shiau East Road, Sec. 2 Taipei 100, Taiwan R.O.C. Tel: 886-2-2356-8161, Fax: 886-2-2356-8261 Japan Sanken Electric Co., Ltd. Overseas Sales Headquarters Metropolitan Plaza Building 1-11-1 Nishi-Ikebukuro, Toshima-ku Tokyo 171-0021, Japan Tel: 81-3-3986-6164, Fax: 81-3-3986-8637 North America United States Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01606, U.S.A. Tel: 1-508-853-5000, Fax: 1-508-853-7895 Allegro MicroSystems, Inc. 14 Hughes Street, Suite B105 Irvine, California 92618, U.S.A. Tel: 1-949-460-2003, Fax: 1-949-460-7837 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 14