Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 ◆General Descriptions ◆Package The STR-Y6473 is power IC for quasi-resonant switching type power supplies, incorporating a power MOSFET and a controller IC. The product is automatically switched to the quasi resonant operation, one bottom skip quasi resonant operation and two bottom skip operation in normal operation, and to the burst oscillation operation in light load. That realizes the low standby power and a power supply system with high cost performance, low external part count can be easily composed. Package name: TO-220F-7L (FMS207) ◆Features Multi operation mode The operation mode switching with four steps according to load conditions achieves the optimal high efficiency and low noise power supply systems across the full range of loads. Current mode control method The built-in startup circuit reduces the power consumption Auto burst oscillation operation reduces dissipation. Input power PIN ≤ 0.1W at no load Standby input compensation Overcurrent protection with AC input compensation function Built-in soft start function Built-in maximum on-time limitation circuit Built-in leading edge blanking function Avalanche energy guaranteed; two-chip structure (enabling the simplification of surge absorbing circuit) Protection functions Overcurrent protection (OCP) with input compensation function: pulse by pulse basis, low dependence on input voltage Overload protection (OLP); latched shutdown or auto restart Overvoltage protection (OVP); latched shutdown ◆Application Switching Power Supplies for Digital appliance such as BD/DVD recorder, FPD TVs, etc. OA equipments such as printer Home appliance (white goods) Industry Machines Communication Devices ◆Specification MOSFET 850V, 3.6Ω(MAX) ◆Typical application circuit Sanken Electric Co., Ltd. 1/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Absolute maximum ratings The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC. Unless otherwise specified, TA = 25 °C Item Pin Symbol Ratings Unit Remark 1−2 IDpeak(1) 7.5 A Single pulse Maximum Switching Current 1−2 IDMAX(2) 7.5 A Ta= −20 to +125°C Avalanche Energy 1−2 EAS(3) 70 mJ Control Power Supply Voltage 3−2 VCC 32 V Startup Circuit pin Voltage 1−2 VSTARTUP −1.0 to VDSS V ADJ pin Inflowing Current 7−2 IADJ 3.0 mA FB pin Inflowing Current 4−2 IFB 8.0 mA BD pin Inflowing Current 5−2 IBDIN 2.0 mA BD pin Inflowing Current 5−2 IBDOUT −2.0 mA OCP pin Voltage 6−2 VOCP −1.5 to +2.0 V MOS FET Power Dissipation 1−2 PD1(4) 25.5 W By infinite radiator 1.3 W No radiator Control Power Dissipation (MIC) ― PD2 0.8 W Operating Inner Flame Temperature ― TF −20 to +115 °C Operating Ambient Temperature ― Top −20 to +115 °C Storage Temperature ― Tstg −40 to +125 °C Drain Current Single pulse VDD=99V, L=20mH ILpeak=2.5A Refer to recommended operating temperature Channel Temperature ― Tch +150 °C Refer to MOS FET A.S.O. curve (2) Regarding the maximum switching current The maximum switching current is drain current IC determined by inner drive voltage and MOS FET Vth. (3) Refer to MOS FET Tch-EAS curve (4) Refer to MOS FET Ta-PD1 curve (1) Sanken Electric Co., Ltd. 2/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Electrical characteristics Electrical characteristics for control part The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC. Unless otherwise specified, TA = 25 °C, VCC = 20V Characteristic Pins Symbol Operation Start Voltage 3 − 2 Operation Stop voltage Rating Unit MIN TYP MAX VCC(ON) 14.4 16.2 18.4 V 3 − 2 VCC(OFF) 9.0 10.0 11.3 V Circuit Current in Operation 3 − 2 ICC(ON) ― 3.5 5.5 mA Circuit Current in Non-Operation 3 − 2 ICC(OFF) ― 10 50 µA Startup Circuit Operation Voltage 1 − 2 VSTART(ON) 55 82 100 V Startup Current 3 − 2 ICC(STARTUP) −2.4 −1.4 −0.5 mA Startup Current after OLP Operation 3 − 2 ICC(STARTOLP) −1.10 −0.50 −0.15 mA Oscillation Frequency 1 − 2 fOSC 17.5 21.0 25.0 kHz Soft Start Operation Stop Voltage 7 − 2 VADJ(SS) 2.0 2.3 2.6 V Soft Start Operation Charging Current 7 − 2 IADJ(SS) −148 −110 −71 µA Power Off Threshold Voltage 7 − 2 VADJ(OFF) 8.2 9.4 10.8 V 6 − 2 VOCP(BS1) −0.720 −0.668 −0.605 V 6 − 2 VOCP(BS2) −0.485 −0.435 −0.381 V 6 − 2 VOCP(BS3) −0.205 −0.145 −0.085 V 7 − 2 VADJ(BS) 3.8 4.3 4.8 V Bottom-Skip Detection Bias Current 7 − 2 IADJ(BS) −27 −20 −13 µA BD Pin Maximum Clamp Voltage 5 − 2 VBD(HC) ― 6.3 ― V BD Pin Minimum Clamp Voltage Quasi-Resonant Operation Threshold Voltage 1 Quasi-Resonant Operation Threshold Voltage 2 Maximum Feedback Current 5 − 2 VBD(LC) ― −0.075 ― V 5 − 2 VBD(TH1) 0.12 0.31 0.60 V 5 − 2 VBD(TH2) 0.01 0.15 0.32 V 4 − 2 IFB(MAX) −315 −225 −135 µA Standby State Detection Voltage 4 − 2 VFB(STBIN) 1.40 1.63 1.85 V Standby State Start Voltage 7 − 2 VADJ(STB) 5.7 6.2 6.8 V Standby Operation Voltage 4 − 2 VFB(STBOP) 0.80 1.00 1.25 V Minimum ON-time (in steady state) Minimum ON-time (in input compensation) 1 − 2 tONL(MIN) 0.98 1.64 2.21 µs 1 − 2 tONH(MIN) 0.54 1.00 1.43 µs Power Supply Startup Operation Normal Operation Bottom-Skip Operation Threshold Voltage 1 Bottom-Skip Operation Threshold Voltage 2 Bottom-Skip Operation Threshold Voltage 3 Bottom-Skip Start Voltage Standby Operation Sanken Electric Co., Ltd. 3/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Characteristic Pins Symbol Maximum ON –time 1 − 2 Leading Edge Blanking Time Overcurrent Detection Threshold Voltage (in steady state) Overcurrent Detection Threshold Voltage (in input compensation) OCP Pin Leakage Current Input Compensation Detection Threshold Current 1 Input Compensation Detection Threshold Current 2 OLP Bias Current Rating Unit MIN TYP MAX tON(MAX) 31 36 41 µs 1 − 2 tON(LEB) ― 375 ― ns 6 − 2 VOCP(H) −0.975 −0.930 −0.875 V 6 − 2 VOCP(L) −0.904 −0.780 −0.656 V 6 − 2 IOCP(O) −260 −130 −40 µA 5 − 2 IBD(TH1) −575 −500 −425 µA 5 − 2 IBD(TH2) −565 −450 −375 µA 4 − 2 IFB(OLP) −27 −20 −13 µA OLP Auto Restart Threshold Voltage 4 − 2 VFB(OLPAUTO) 6.3 6.7 7.3 V OLP Latched Shutoff Bias Current 4 − 2 IFB(OLPLa.OFF) −1.5 −1.0 −0.5 mA OLP Latched Shutoff Threshold Voltage 4 − 2 VFB(OLPLa.OFF) 8.6 9.6 10.2 V OVP Operation Power Supply Voltage Latch Circuit Release Power Supply Voltage * Maximum Voltage in Feedback Control 3 − 2 VCC(OVP) 26.0 28.5 31.0 V 3 − 2 VCC(La.OFF) 6.2 7.5 8.9 V 4 − 2 VFB(MAX) 4.90 5.45 6.00 V ― Tj(TSD) 135 ― ― °C Protection Operation Thermal shutdown operation temperature * The latch circuit means a circuit operated by OVP or OLP. Electrical characteristics for MOSFET part Unless otherwise specified, TA = 25 °C, Characteristic Pins Symbol Voltage between Drain and Source 1 − 2 Drain Leakage Current Rating Unit MIN TYP MAX VDSS 850 ― ― V 1 − 2 IDSS ― ― 300 µA ON Resistance 1 − 2 RDS(ON) ― ― 3.6 Ω Switching Time 1 − 2 tf ― ― 500 ns ― θch-F ― 1.6 2.1 °C/W Thermal Resistance* *Between Channel and inner frame Sanken Electric Co., Ltd. 4/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 STR-Y6473 A.S.O.温度ディレーティング係数曲線 A.S.O. temperature derating coefficient curve STR-Y6473 MOS FET A.S.O. 曲線 Ta=25℃ ｼﾝｸﾞﾙﾊﾟﾙｽ curve Single puｌse 10 0.1ms 100 ドレイン電流 I D〔Ａ〕 Drain Current A.S.O.温度ディレーティング係数[%] A.S.O. temperature derating coefficient オン 抵抗によ る 80 60 40 ドレイ ン 電流限界 Drain current limt by ON resistance 1 ms 1 0.1 20 ご使用に際して左図よ り温度ディレーティン グ係数を 求め、 ASOの温度ディレーティン グを 行って下さい。 ASO temperature derating shall be made by obtaining ASO Coeffcient from the left curve in your use. 0 0 25 115 50 0.01 75 100 125 150 10 100 ドレイン・ソース間電圧 Drain-to-Source Voltage 内部フレーム温度 TF [℃] Internal frame temperature ST R-Y6473 STR-Y6473 アバランシェ・エネルギ耐量 ディレーティング曲線 Avalanche energy derating curve MOSFET T a-P D1 曲線 curve 30 100 無限大放熱器付き With infinite heat sink EAS温度ディレーティング係数[%] EAS temperature derating coefficient Power dissipation 許容損失 PD1〔Ｗ〕 25.5 25 20 15 10 放熱器なし Without heat sink 5 80 60 40 20 0 1.3 0 0 25 25 50 75 115 50 75 100 125 チャネル温度Tch [℃] Channel temperature 100 125 150 周囲温度 Ta〔℃〕 Ambient temperature Sanken Electric Co., Ltd. 5/11 150 1000 VDS〔V〕 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 STR-Y6473 過渡熱抵抗曲線 STR-Y6473 Transient thermal resistance curve 過渡熱抵抗θ ｃｈ-Ｃ [℃/W] Transient thermal resistance 10 1 0.1 0.01 0.001 0.000001 0.00001 0.0001 0.001 時間 ｔ [s] Time Sanken Electric Co., Ltd. 6/11 0.01 0.1 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Black Diagram D/Startup Startup 3 Vcc UVLO 1 DRV Reg/Iconst S/GND Latch Logic OSC ADJ 7 FB 4 FB/STB OCP OCP BD ADJ/SS 2 BD 6 5 Pin function description Pin No. Symbol 1 D/Startup 2 S/GND 3 Name Function Drain / Startup circuit input pin MOSFET drain and startup circuit input Source/ Ground pin MOSFET source and ground VCC Power Supply pin 4 FB Feedback pin 5 BD Bottom detection/ Input compensation detection pin 6 OCP Overcurrent protection input pin 7 ADJ Adjust pin Input for power supply for control circuit Input for Constant voltage control signal/ Standby control/ Over load detection signal Input for bottom detection signal/ Input compensation detection signal Input for Overcurrent detection signal/ Bottom skip signal detection signal Soft start operation/ Delay time setting of bottom skip / Input for remote ON/OFF signal Sanken Electric Co., Ltd. 7/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Typical Application Circuit Sanken Electric Co., Ltd. 8/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Package リードフォーミング Lead forming 4.2 ±0.2 φ3.2±0.2 15±0.3 Gate burr ゲートバリ 2.8±0.2 0.5 10±0.2 No.3001 STR a 2.6±0.1 （根元寸法） between roots R-end (5.4) R-end 5×P1.17±0.15 =5.85±0.15 （根元寸法） between roots 2±0.15 （根元寸法） between roots 3-(R1) (5.4) +0.2 7-0.55-0.1 10.4±0.5 7-0.62±0.15 5±0.5 5±0.5 b +0.2 0.45-0.1 2.54±0.6 (先端寸法) between tips 5.08±0.6 (先端寸法) between tips 0.5 0.5 0.5 平面状態図 Planar state 1 2 3 4 5 6 7 品名標示 a.a.Part numberY6476Y6473 b.b.Lot number ロット番号 Pin material: Cu 端子の材質: Cu Pin treatment: Ni plating and solder dip 端子の処理: Niメッキ＋半田ディップ Product weight (approximate): 2.3g 製品重量: 約2.2g 第1文字 注記 Note Note 部は高さ0.3maxのゲートバリ発生個所をしめす。 ―-― part shows the point gate burr (height 0.3 max) occurred 単位: mm Dimensions in millimeters 西暦年号下一桁 1st letter: The Last digit of year 第2文字 2nd letter: Month 製造月 1～9月 Jan. to Sep. Arabicアラビア数字 number 10月 O Oct. O 11月 N Nov. 12月N D Dec. 第3、4文字 D 製造日 01～31 アラビア数字 th 3rd & 4第5文字 letter: day弊社管理記号 01-31 Arabic numbers th 5 letter: Sanken management symbol Sanken Electric Co., Ltd. 9/11 0.5 側面状態図 Side view Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 OPERATING PRECAUTIONS In the case that you use Sanken products or design your products by using Sanken products, the reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor products. For these stresses, instantaneous values, maximum values and minimum values must be taken into consideration. In addition, it should be noted that since power devices or IC’s including power devices have large self-heating value, the degree of derating of junction temperature affects the reliability significantly. 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 (5 to 35°C) 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 the 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. Ensure all test parameters are within the ratings specified by Sanken for the products. Remarks About Using Silicone Grease with a Heatsink When silicone grease is used in mounting the products 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 greases with low consistency (hard grease) may cause cracks in the mold resin when screwing the products 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 Inc. SC102 Dow Corning Toray Co., Ltd. Cautions for Mounting to a Heatsink When the flatness around the screw hole is insufficient, such as when mounting the products to a heatsink that has an extruded (burred) screw hole, the products can be damaged, even with a lower than recommended screw torque. For mounting the products, the mounting surface flatness should be 0.05mm or less. Please select suitable screws for the product shape. Do not use a flat-head machine screw because of the stress to the products. Self-tapping screws are not recommended. When using self-tapping screws, the screw may enter the hole diagonally, not vertically, depending on the conditions of hole before threading or the work situation. That may stress the products and may cause failures. Recommended screw torque: 0.588 to 0.785 N･m (6 to 8 kgf･cm). For tightening screws, if a tightening tool (such as a driver) hits the products, the package may crack, and internal stress fractures may occur, which shorten the lifetime of the electrical elements and can cause catastrophic failure. Tightening with an air driver makes a substantial impact. In addition, a screw torque higher than the set torque can be applied and the package may be damaged. Therefore, an electric driver is recommended. When the package is tightened at two or more places, first pre-tighten with a lower torque at all places, then tighten with the specified torque. When using a power driver, torque control is mandatory. Soldering When soldering the products, please be sure to minimize the working time, within the following limits: • 260 ± 5 °C 10 ± 1 s (Flow, 2 times) • 380 ± 10 °C 3.5 ± 0.5 s (Soldering iron, 1 time) Soldering should be at a distance of at least 1.5 mm from the body of the products. Sanken Electric Co., Ltd. 10/11 Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise and Low Standby Power in Full Load Range STR-Y6473 Sep, 2013 Electrostatic Discharge When handling the products, the operator must be grounded. Grounded wrist straps worn should have at least 1MΩ 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 order 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. IMPORTANT NOTES The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the latest revision of the document before use. 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 or any third party which may result from its use. Unless otherwise agreed in writing by Sanken, Sanken makes no warranties of any kind, whether express or implied, as to the products, including product merchantability, and fitness for a particular purpose and special environment, and the information, including its accuracy, usefulness, and reliability, included in this document. 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.). When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales representative to discuss, 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. 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. Anti radioactive ray design is not considered for the products listed herein. Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken’s distribution network. The contents in this document must not be transcribed or copied without Sanken’s written consent. Sanken Electric Co., Ltd. 11/11