STR2W152D and STR2W153D Current Mode Control PWM Regulator ICs For Switching Power Supplies Features and Benefits Description • Current mode PWM control • Built-in Random Switching function: reduces EMI noise, simplifies EMI filters, and cuts cost by external part reduction • Built-in Slope Compensation function: avoids subharmonic oscillation • Built-in Leading Edge Blanking (LEB) function • Auto Standby function: ▫ Input power, PIN < 25 mW at no load ▫ Normal load operation: PWM switching ▫ Light load operation: Standby mode (Burst oscillation) • Soft Start function: reduces stress on internal power MOSFET and output rectifier diode The STR2W152D and STR2W153D are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC in one package. Including a startup circuit and a standby function in the controller, the products achieve low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external components. The products are provided in fully molded TO-220 package types. Pin 2 is deleted for greater isolation. Continued on the next page… Applications Package: TO-220F-6L Switching power supplies for electronic devices such as: • Home appliances • Digital appliances • Office automation (OA) equipment • Industrial apparatus • Communication facilities Not to scale Typical Application CRD Clamp Snubber Circuit D1 C5 L2 D4 T1 VAC R3 R9 PC1 P C1 D3 R5 C8 C6 U1 D2 U2 R2 D R6 R7 GND D/ST 2 S/OCP V CC GND FB/OLP NC C2 R4 R8 S C7 STR 2W100D VOUT 1 C4 C, RC Damper Snubber Circuit STR2W100D-DS 3 4 5 6 7 C3 PC1 ROCP C9 SANKEN ELECTRIC CO., LTD. May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Features and Benefits (continued) • Protection Functions: ▫ Overcurrent Protection function (OCP); Pulse-by-pulse, built-in compensation circuit to minimize OCP point variation on AC input voltage ▫ Overload Protection function (OLP); Auto restart, built-in timer, reduces heat during overload condition, and no external components required ▫ Overvoltage Protection function (OVP); Auto restart ▫ Thermal Shutdown function (TSD); Auto restart Selection Guide POUT* (W) MOSFET Part Number fOSC (kHz) STR2W152D VDSS(min) (V) 67 STR2W153D 650 RDS(on) (max) (Ω) 230 VAC 85 to 265 VAC 3.0 60 40 1.9 90 60 *The listed output power is based on the package thermal ratings, and the peak output power can be 120% to 140% of the value stated here. At low output voltage and short duty cycle, the output power may be less than the value stated here. The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC. Absolute Maximum Ratings Unless specifically noted, TA is 25°C Characteristic Symbol Drain Peak Current1 IDPeak Maximum Switching Current2 IDMAX EAS Avalanche Energy3 ILPEAK STR2W152D STR2W153D STR2W152D STR2W153D Notes Pins Single pulse 1–3 TA = –20°C to 125°C 1–3 STR2W152D STR2W153D STR2W152D Single pulse VDD = 99 V, L = 20 mH 1–3 STR2W153D 62 mJ 86 mJ 2.3 A 32 V 6–5 −0.3 to 14 V VFB FB/OLP Sink Current IFB 6–5 STR2W153D A A 4–5 VCC FB/OLP Pin Voltage PD1 6.0 9.5 A Control Part Input Voltage MOSFET Power A A V 3–5 With infinite heatsink 6.0 9.5 2.7 VOCP Dissipation4 Unit −2 to 6 S/OCP Pin Voltage STR2W152D Rating 1.0 mA 23.8 W 26.5 W 1.3 W 4–5 0.13 W −20 to 115 °C 1–3 Without heatsink Control Part Power Dissipation PD2 Internal Frame Temperature in Operation5 TF – Operating Ambient Temperature TOP – −20 to 115 °C Storage Temperature Tstg – −40 to 125 °C Channel Temperature Tch – 150 °C Specified by VCC × ICC 1Refer to MOSFET Safe Operating Area Curve. 2I DMAX is the drain current determined by the drive voltage of the IC and the threshold voltage, Vth , of the MOSFET. 3Refer to MOSFET Avalanche Energy Derating Coefficient Curve. 4Refer to MOSFET Temperature versus Power Dissipation Curve. 5Maximum recommended internal frame temperature, T (max) = 105°C. F STR2W100D-DS SANKEN ELECTRIC CO., LTD. 2 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Electrical Characteristics of Control Part Unless specifically noted, TA is 25°C, VCC = 18 V Characteristic Symbol Operation Start Voltage VCC(ON) Operation Stop Voltage* VCC(OFF) Circuit Current in Operation ICC(ON) Test Conditions VCC = 12 V Pins Min. Typ. Max. Unit 4–5 13.8 15.3 16.8 V 4–5 7.3 8.1 8.9 V 4–5 − − 2.5 mA Minimum Start Voltage VST(ON) 4–5 − 40 − V Startup Current ISTARTUP VCC = 13.5 V 4–5 −3.9 −2.5 −1.1 mA Startup Current Threshold Biasing Voltage* VCC(BIAS) ICC = –100 μA 4–5 8.5 9.5 10.5 V Average Operation Frequency fOSC(AVG) 1–5 60 67 74 kHz Frequency Modulation Deviation Maximum Duty Cycle Leading Edge Blanking Time Δf 1–5 − 5 − kHz DMAX 1–5 65 74 83 % tBW – − 390 − ns OCP Compensation Coefficient DPC – − 17 − mV/μs OCP Compensation Duty Cycle Limit DDPC – − 36 − % OCP Threshold Voltage at Zero Duty Cycle VOCP(L) 3–5 0.69 0.78 0.87 V OCP Threshold Voltage at 36% Duty Cycle VOCP(H) 3–5 0.79 0.88 0.97 V Maximum Feedback Current IFB(MAX) Minimum Feedback Current IFB(MIN) FB/OLP Oscillation Stop Threshold Voltage VFB(OFF) OLP Threshold Voltage OLP Operation Current 6–5 −280 −170 −90 μA 6–5 −30 −15 −7 μA VCC = 32 V 6–5 1.3 1.4 1.5 V VFB(OLP) VCC = 32 V 6–5 7.3 8.1 8.9 V ICC(OLP) VCC = 12 V 4–5 − 230 − μA tOLP 1–5 54 68 82 ms FB/OLP Clamp Voltage VFB(CLAMP) 6–5 11 12.8 14 V OVP Threshold Voltage VCC(OVP) 4–5 26 29 32 V TJ(TSD) − 130 − − °C Pins Min. Typ. Max. Unit OLP Delay Time Thermal Shutdown Activating Temperature VCC = 12 V *VCC(BIAS) > VCC(OFF) always. Electrical Characteristics of MOSFET Unless specifically noted, TA is 25°C Characteristic Symbol Test Conditions Drain-to-Source Breakdown Voltage VDSS 1–5 650 ― ― V Drain Leakage Current IDSS 1–5 ― ― 300 μA ― ― 3.0 Ω On-Resistance RDS(ON) Switching Time tf Thermal Resistance* Rθch-F STR2W152D STR2W153D 1–5 1–5 STR2W152D STR2W153D ― ― ― 1.9 Ω ― ― 250 ns ― ― 2.48 °C/W ― ― 1.95 °C/W *The thermal resistance between the channels of the MOSFET and the internal frame. STR2W100D-DS SANKEN ELECTRIC CO., LTD. 3 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Characteristic Performance STR2W152D MOSFET Safe Operating Area Curve 100 Single pulse TA = 25°C 100 Drain current limited by on-resistance 10 80 Drain Current, ID (A) Safe Operating Area Temperature Derating Coefficient (%) S. O. A. Temperature Derating Coefficient Curve 60 40 20 0.1 ms 1 ms 1 0.1 0 0 20 40 60 80 100 120 To use this graph, apply the S.O.A temperature derating coefficient taken from the graph at the left Internal Frame Temperature, TF (°C) 0.01 1 10 100 1000 Drain-to-Source Voltage, VDS (V) MOSFET Temperature versus Power Dissipation Curve 100 Allowable Power Dissipation, PD1 (W) EAS Temperature Derating Coefficient (%) MOSFET Avalanche Energy Derating Coefficient Curve 80 60 40 20 0 25 50 75 100 125 150 25 20 With infinite heatsink PD1 = 23.8 W 15 10 5 0 Without heatsink PD1 = 1.3 W 0 Transient Thermal Resistance, Rθch-c (°C/W) Channel Temperature, Tch (°C) 10 20 40 60 80 100 120 140 160 Ambient Temperature, TA (°C) Transient Thermal Resistance Curve 1 0.1 0.01 10–6 10–5 10–4 10–3 10–2 10–1 Time (s) STR2W100D-DS SANKEN ELECTRIC CO., LTD. 4 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Characteristic Performance STR2W153D MOSFET Safe Operating Area Curve 100 Single pulse TA = 25°C Drain current limited by on-resistance 100 0.1 ms 10 80 Drain Current, ID (A) Safe Operating Area Temperature Derating Coefficient (%) S. O. A. Temperature Derating Coefficient Curve 60 40 20 1 ms 1 0.1 0 0 20 40 60 80 100 120 To use this graph, apply the S.O.A temperature derating coefficient taken from the graph at the left Internal Frame Temperature, TF (°C) 0.01 1 10 100 1000 Drain-to-Source Voltage, VDS (V) MOSFET Temperature versus Power Dissipation Curve 100 Allowable Power Dissipation, PD1 (W) EAS Temperature Derating Coefficient (%) MOSFET Avalanche Energy Derating Coefficient Curve 80 60 40 20 0 25 50 75 100 125 150 30 25 With infinite heatsink PD1 = 26.5 W 20 15 10 5 0 Without heatsink PD1 = 1.3 W 0 Transient Thermal Resistance, Rθch-c (°C/W) Channel Temperature, Tch (°C) 10 20 40 60 80 100 120 140 160 Ambient Temperature, TA (°C) Transient Thermal Resistance Curve 1 0.1 0.01 10–6 10–5 10–4 10–3 10–2 10–1 Time (s) STR2W100D-DS SANKEN ELECTRIC CO., LTD. 5 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Functional Block Diagram 4 VCC Startup UVLO 7 Reg VREG OVP D/ST 1 TSD NC PWM Oscillator DRV SQ R OCP VCC Drain peak current compensation OLP Feedback control FB/OLP 6 Slope compensation Pin-out Diagram D/ST S/OCP NC STR2W100D-DS 5 STR2W100D Pin List Table Name D/ST 3 S/OCP 4 4 VCC Power supply voltage input for Control Part and input of Overvoltage Protection (OVP) signal 6 5 GND Ground 6 FB/OLP 7 NC 5 7 GND 1 3 FB/OLP 3 S/OCP Number 1 VCC GND LEB Function MOSFET drain pin and input of the startup current MOSFET source and input of Overcurrent Protection (OCP) signal Feedback signal input for constant voltage control signal and input of Overload Protection (OLP) signal No connection SANKEN ELECTRIC CO., LTD. 6 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D Package Diagram TO-220F-6L 10.0±0.2 4.2±0.2 Gate burr Ø3.2±0.2 7.9±0.2 16.9±0.3 4±0.2 0.5 2.8±0.2 R-end (5.4) ) -R1 (2 6-0.65 +0.2 -0.1 6×P1.27±0.15=7.62±0.15 Dimensions between roots 10.4±0.5 6-0.74±0.15 5.0±0.5 2.8 2.6±0.1 Dimensions from root 0.45 +0.2 -0.1 5.08±0.6 Dimensions between tips 0.5 Front view 1 2 3 4 5 6 7 Pin treatment Pb-free. Device composition compliant with the RoHS directive. Marking Diagram STR 0.5 0.5 Side view NOTES: 1) Unit: mm 2) Gate Burr: indicates protrusion of 0.3 mm (max) 3) Leadform: No. LF2003 4) Pin #2 removed in order to secure distance between pin #1 (high-voltage pin) and pin #3 (low-voltage pin) Part Number 2W1xxD X1 YMDD X2 STR2W100D-DS 0.5 Lot Number X1 is a Sanken control number Y is the last digit of the year (0 to 9) M is the month (1 to 9, O, N, or D) DD is the day (01 to 31) X2 is a Sanken control number SANKEN ELECTRIC CO., LTD. 7 May 14, 2012 Current Mode Control PWM Regulator ICs For Switching Power Supplies STR2W152D and STR2W153D 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°C 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 STR2W100D-DS recommended screw torque. For mounting the products, the mounting surface flatness should be 0.05 mm 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 2.0 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 MΩ 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. SANKEN ELECTRIC CO., LTD. 8 May 14, 2012 STR2W152D and STR2W153D Current Mode Control PWM Regulator ICs For Switching Power Supplies • 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. • 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. • 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. • 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. STR2W100D-DS SANKEN ELECTRIC CO., LTD. 9 May 14, 2012