MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules Features and Benefits Description ▪ Wide input voltage range: VIN = 8 to 30 V ▪ High efficiency: 95% (max) for MPM80, 88% (max) for MPM81, and 93% (max) for MPM82 ▪ Output voltage: 3.0 to 16 V for MPM80, 3.3 V for MPM81, and 5.0 V for MPM82 ▪ Maximum output current: IO = 2 A ▪ Operating frequency: 630 kHz ▪ Few external components required: ▫ Built-in inductor ▫ Built-in phase compensation circuit ▪ A variety of protection features include: ▫ Overcurrent (OCP) with auto restart ▫ Overvoltage (OVP) ▫ Undervoltage lockout (UVLO) th auto restart ▫ Overtemperature (OTP) with The MPM80, MPM81, and MPM82 are hybrid module ICs that include a non-isolated step-down DC / DC converter circuit with an inductor in a full-mold package. These features allow simple circuit configurations using few components, contributing to a reduction in design time and PCB space. Package: TO-220-8L This product can operate by simply connecting an input smoothing capacitor, an output smoothing capacitor, and output voltage setting resistors. This contributes to a reduction in man-hours for design and evaluation. Because this product contains a power inductor, the burdensome work of selecting and evaluating an inductor is unnecessary. Adoption of the free-standing full-mold package provides the design flexibility of either screwing the package to a heatsink or mounting the package directly on a PCB substrate without installing a heatsink, depending on the output voltage setting and load conditions. Applications: Not to scale • FA devices • Communication devices • Consumer devices • Others Typical Application Circuits 3 VIN MPM80 VO 6 3 VIN FB 7 PGND SGND 4 5 MPM80-DS, Rev. 0.1 MPM81 MPM82 VO 6 FF 7 PGND SGND 4 5 SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules Selection Guide Part Number Input Voltage (VDC) Output Voltage (VDC) Output Current (A) Drive Frequency (kHz) Efficiency (% Max) MPM80 8 to 30 3 to 16 2 630 95 MPM81 8 to 30 3.3 2 630 88 MPM82 8 to 30 5 2 630 93 The polarity value for current specifies a sink as "+," and a source as “−,” referencing the device. Absolute Maximum Ratings, valid at TA = 25°C if not otherwise specified Rating Unit Voltage Between VIN and GND Pins Characteristic Symbol VIN PGND and SGND tied together externally 35 V Voltage Between FB and GND Pins VFB PGND and SGND tied together externally 5 V VO PGND and SGND tied together externally 20 V No radiator added 2 W Voltage Between VO and GND Pins MIC Capacity Loss PLOSS Conditions Junction Temperature TJ −20 to 125 °C Storage Temperature Tstg −20 to 125 °C Thermal Resistance RθJA 50 °C/W Between MIC junction and air; no heatsink Recommended Operating Conditions1,2 Characteristic Symbol Input Voltage Range3 VIN Output Voltage Range VO Output Current Range4 IO Operating Junction Temperature TJOP Operating Temperature Range4 TA Conditions Min. Max. Unit 8 30 V MPM80 Variable with external resistors 3.0 16.0 V MPM81 Fixed voltage 3.23 3.37 V MPM82 Fixed voltage 4.9 5.1 V 0 2.0 A −20 125 °C −20 85 °C With derating 1Recommended operating conditions refer to operating conditions to maintain normal circuit functions specified in the Electrical Characteristics table in this document and they must be followed in actual use. 2When connected as shown in figure 1. 3Derating is required; refer to the Thermal Characteristics section. 4Minimum value must be either 8 V or V + 3 V, whichever is greater. O MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 2 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM80 Electrical Characteristics1 TA = 25°C, VIN = 12 V, if not otherwise specified Characteristic Output Voltage Setting Reference Voltage Output Voltage Setting Reference Voltage Temperature Coefficient Line Regulation2 Oscillation Frequency Load Regulation2 Symbol VFBREF Test Conditions IO = 1 A ΔVFBREF / ΔT TA = –20 to 85°C VLINE VIN = 8 to 30 V, VO = 5 V, IO = 1 A Typ. Max. Unit 0.784 0.800 0.816 V – ±0.05 – mV / °C –2 – 2 % 567 630 693 kHz VO = 5 V, IO =0 to 2 A –3 – 3 % 2.4 – 4.0 A f VLOAD Min. Overcurrent Protection (OCP) Starting Current3 IS VO = 5 V, drooping/automatic restoration of operation when fault removed Circuit Current IIN IO = 0 A, VFB = 1 V – 2.5 – mA – 1.1 × VFBREF – V 135 150 – °C 7.0 7.5 V Overvoltage Protection (OVP) Starting Voltage4 VOVP VIN = 8 to 35 V MIC Overtemperature Protection (OTP) Starting Temperature TJOTP VIN = 8 to 35 V, automatic restoration of operation when fault removed Undervoltage Lockout (UVLO) Voltage VUVLO 6.0 UVLO Release Voltage VUVLO(OFF) 5.5 6.5 7.0 V UVLO Hysteresis Voltage4 VUVLOHYS – 0.5 – V Minimum Input-Output Difference VINVO(MIN) Built-In Software Start Time4 Maximum On Duty Cycle4 Minimum On-Time4 Inductance Value tSS When VO is set to 12 V 3 – – V VIN = 12 V, IO = 1.0 A – 6.4 – ms DMAX – 90 – % tMIN – 160 – ns L 4.48 5.60 6.72 μH 1The Electrical Characteristics value specifications apply when the MPM80 is connected as shown in figure 1. 2V LINE and VLOAD do not include output voltage setting deviation. Note that output voltage setting deviation is affected by precision of the external resistors R1 and R2. For details, refer to the Application Information section. 3When the output voltage, V , is set to any value other than 5.0 V, the inductance value and operating frequency of the built-in inductor change in O direct proportion with to the setting output voltage. Therefore, the OCP operating point may vary significantly from the value when VO = 5.0 V. 4Determined by design, not tested in production. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 3 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM81 Electrical Characteristics1 TA = 25°C, VIN = 12 V, if not otherwise specified Characteristic Output Voltage Setting Reference Voltage Line Regulation Oscillation Frequency Load Regulation Symbol Test Conditions Min. Typ. Max. Unit VFBREF VIN = 8 to 30 V, IO = 1 A 3.23 3.30 3.37 V VLINE VIN = 8 to 30 V, IO = 1 A –2 – 2 % f VLOAD 567 630 693 kHz IO =0 to 2 A –3 – 3 % 2.7 – 4.4 A Overcurrent Protection (OCP) Starting Current IS VO = 5 V, drooping/automatic restoration of operation when fault removed Circuit Current IIN IO = 0 A, VFB = 1 V – 2.5 – mA – 1.1 × VFBREF – V 135 150 – °C 7.0 7.5 V Overvoltage Protection (OVP) Starting Voltage2 VOVP VIN = 8 to 35 V MIC Overtemperature Protection (OTP) Starting Temperature TJOTP VIN = 8 to 35 V, automatic restoration of operation when fault removed Undervoltage Lockout (UVLO) Voltage VUVLO 6.0 UVLO Release Voltage VUVLO(OFF) 5.5 6.5 7.0 V UVLO Hysteresis Voltage2 VUVLOHYS – 0.5 – V Minimum Input-Output Difference VINVO(MIN) 3 – – V – 6.4 – ms Built-In Software Start Time2 Maximum On Duty Cycle2 Minimum On-Time2 Inductance Value tSS VIN = 12 V, IO = 1.0 A DMAX – 90 – % tMIN – 160 – ns L 4.48 5.60 6.72 μH 1The Electrical Characteristics value specifications apply when the MPM80 is connected as shown in figure 1. 2Determined by design, not tested in production. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 4 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM82 Electrical Characteristics1 TA = 25°C, VIN = 12 V, if not otherwise specified Characteristic Output Voltage Setting Reference Voltage Line Regulation Oscillation Frequency Load Regulation Symbol Test Conditions Min. Typ. Max. Unit VFBREF VIN = 8 to 30 V, IO = 1 A 4.90 5.00 5.10 V VLINE VIN = 8 to 30 V, IO = 1 A –2 – 2 % f VLOAD 567 630 693 kHz IO =0 to 2 A –3 – 3 % 2.4 – 4.0 A Overcurrent Protection (OCP) Starting Current IS VO = 5 V, drooping/automatic restoration of operation when fault removed Circuit Current IIN IO = 0 A, VFB = 1 V – 2.5 – mA – 1.1 × VFBREF – V 135 150 – °C 7.0 7.5 V Overvoltage Protection (OVP) Starting Voltage2 VOVP VIN = 8 to 35 V MIC Overtemperature Protection (OTP) Starting Temperature TJOTP VIN = 8 to 35 V, automatic restoration of operation when fault removed Undervoltage Lockout (UVLO) Voltage VUVLO 6.0 UVLO Release Voltage VUVLO(OFF) 5.5 6.5 7.0 V UVLO Hysteresis Voltage2 VUVLOHYS – 0.5 – V Minimum Input-Output Difference VINVO(MIN) 3 – – V – 6.4 – ms Built-In Software Start Time2 Maximum On Duty Cycle2 Minimum On-Time2 Inductance Value tSS VIN = 12 V, IO = 1.0 A DMAX – 90 – % tMIN – 160 – ns L 4.48 5.60 6.72 μH 1The Electrical Characteristics value specifications apply when the MPM80 is connected as shown in figure 1. 2Determined by design, not tested in production. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 5 March 11, 2013 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM8x Series Characteristic Performance MPM80 Device Efficiency versus Output Current Load Regulation versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 100 5.15 5.10 80 VO (V) η (%) 5.05 60 VIN (V) 8 40 18 24 28 20 0 VIN (V) 4.95 12 4.90 18 24 28 4.85 0.00 0.50 1.00 1.50 2.00 0.00 0.50 1.00 1.50 2.00 I O (A) I O (A) Internal Loss versus Output Current Temperature Rise versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 3.5 100 90 VIN (V) 3 8 12 70 12 18 24 28 60 1.5 ΔT (°C) 2 VIN (V) 80 8 2.5 Loss (W) 5.00 8 12 50 18 24 28 40 30 1 20 0.5 10 0 0 0.5 1 1.5 2 0 0.00 I O (A) 0.50 1.00 1.50 2.00 I O (A) MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 6 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM81 Device Efficiency versus Output Current Load Regulation versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 80 80 3.45 5.10 60 60 Vin=8V VIN (V) Vin=12V 40 40 8 Vo (V) Vo(V) 5.15 3.50 η(%) η (%) 100 100 18 Vin=24V 3.20 4.90 3.15 4.85 3.10 24 Vin=28V 28 0 0 0.00 0.00 0.50 0.50 1.00 1.00 Io (A) Io(A) 1.50 1.50 2.00 2.00 VVin=12V IN (V) 8 Vin=18V 12 18 Vin=24V 24 28 Vin=28V 0.00 0.00 0.50 0.50 1.00 1.00 Io (A) Io(A) 1.50 1.50 2.00 2.00 Internal Loss versus Output Current Temperature Rise versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 100 3.50 3.00 90 VIN (V) 80 8 2.00 1.50 VIN (V) 8 12 70 12 18 24 28 60 18 24 28 T(°C ) 2.50 Loss(W) Vin=8V 5.00 3.30 3.25 4.95 Vin=18V 12 20 20 3.40 5.05 3.35 50 40 30 1.00 20 0.50 10 0 0.00 0.00 0.50 1.00 1.50 2.00 0.00 0.50 1.00 1.50 2.00 Io(A) Io(A) MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 7 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM82 Device Efficiency versus Output Current Load Regulation versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 100 100 100 5.15 5.15 5.15 3.50 η(%) (%) ηηη(%) (%) VVin=8V IN (V) VVin=8V IN (V) 8 Vin=12V Vin=12V 8 40 40 40 12 12 18 Vin=18V Vin=18V 18 24 Vin=24V 24 Vin=24V 28 28 Vin=28V Vin=28V 20 20 20 00 0 0.00 0.00 0.00 0.50 0.50 0.50 1.00 1.00 1.00 Io (A) I Io O (A) Io(A) 1.50 1.50 1.50 1.50 2.00 2.00 2.00 2.00 VO (V) Vo(V) (V) Vo Vo(V) 60 60 60 5.00 5.00 5.00 3.30 3.25 4.95 4.95 4.95 3.20 4.90 4.90 4.90 3.15 4.85 4.85 4.85 3.10 0.00 0.00 0.00 0.00 22.00 1.51.50 Vin=18V Vin=24V Vin=28V Vin=8V VIN VIN(V)(V) Vin=12V 88 12 12 Vin=18V 1818 Vin=24V 2424 2828 Vin=28V 0.50 0.50 0.50 0.50 1.00 1.00 1.00 1.00 (A) IIo O (A) 1.50 1.50 1.50 1.50 2.00 2.00 2.00 Internal Loss versus Output Current Temperature Rise versus Output Current VO = 5 V, TA = 25°C VO = 5 V, TA = 25°C 100 100 90 90 VINV(V) IN (V) 80 80 8 8 12 12 70 70 18 18 24 24 28 28 60 60 ΔT (°C) T(͠ ) Loss (W) Loss(W) 2.52.50 Vin=12V 3.40 5.05 5.05 5.05 3.35 3.53.50 33.00 Vin=8V 3.45 5.10 5.10 5.10 80 80 80 12 12 18 18 24 24 28 28 40 40 30 30 11.00 20 20 0.50.50 00.00 0 0.00 50 50 (V) VVININ(V) 88 10 10 0.50.50 11.00 1.5 1.50 2 2.00 0 0.00 0.00 (A) I OIo(A) 0.50 1.00 1.50 2.00 I O (A) MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 8 March 11, 2013 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM8x Series Standard Connection Diagram MPM8x MIC VIN VO L1 C1 C2 EIN R2 (MPM80 only) C3 Control IC CP RL C IN COUT FB PGND SGND R1 (MPM80 only) Figure 1. MPM8x standard circuit connection diagram Recommended Circuit Constants* MPM80, MPM81, and MPM82 EIN Source of input voltage CIN 100 to 1000 μF; not required if the input voltage is stable COUT 220 to 1000 μF (electrolytic capacitor) or 47 to 100 μF (ceramic capacitor); when using an electrolytic capacitor, use a low-impedance capacitor CP 100 to 470pF (Add CP. when ceramic capacitor is used for COUT.) RL Load MPM80 Only R1 680 Ω to 1.5 kΩ With R1 sets the output voltage, according to the following formula: R2 V R2 = O – 1 × R1 V FBREF (1) where VO is the target output voltage, and VFBREF is the FB pin reference voltage, 0.8 V (typ) *If operation is unstable, add a bypass capacitor (1 μF, ceramic) as near as possible to the device, between VIN and PGND pins. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 9 March 11, 2013 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM8x Series Thermal Derating Figure 2 shows thermal derating curves for the MPM80. The MPM80 requires derating based on the ambient temperature, TA , in use. Use the MPM80 within the thermal derating curves shown in figure 2. If using the MPM80 outside the curves, consider using a heatsink. In this case, the thermal resistance, RθJ-C , between the MPM80 junction and case is 8 °C/W. Therefore, use the MPM80 at a junction temperature, TJ , of 125°C or less, with TJ calculated using the following procedure. 1. The internal loss, PLOSS , of the MPM80 in use is calculated as follows: PLOSS = ( IIN × VIN ) – ( IO × VO ) (2) where PLOSS is the internal loss of the MPM80, in watts, IO is the output current of the MPM80 in amperes, and VO is the output voltage of the MPM80, in volts. Overall thermal resistance, RθJ-H , is determined by adding the thermal resistances of the MPM80 and a heatsink, as follows: RθJ-H = RθJ-C + RθH (3) where RθJ-H is the thermal resistance between the MPM80 and heatsink, in degrees Celsius per watt, RθJ-C is the thermal resistance between the MPM80 junction and the MPM80 case, in degrees Celsius per watt, and RθH is the thermal resistance of the heatsink, in degrees Celsius per watt. Junction temperature, TJ , is calculated as follows: IIN is the input current of the MPM80, in amperes, TJ = PLOSS × RθJ-H VIN is the input voltage of the MPM80, in volts, (4) Because the maximum TJ rating of the MPM80 is 125°C, please use the MPM80 at a junction temperature of 125°C or less. 2.5 2.0 I O (A) VIN = 12 V 1.5 VIN = 24 V 1.0 0.5 0.0 -20 0 20 40 60 80 100 T A (°C) Figure 2. MPM80 thermal derating curve; measurement conditions: VO = 5 V, no heatsink MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 10 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules Recommended PCB Layout MPM80 3 5 7 VIN R2 R1 2 4 6 VO R3 + GND – + CIN COUT – GND CIN: Input capacitor COUT: Output capacitor R1: Output voltage setting resistor (FB to GND resistance) R2 and R3: Output voltage setting resistors (VO to FB resistance) • Place CIN and COUT as close to the MPM80 as possible. • Connect R1, R2, and R3 from the output voltage connection point to the SGND (5th) pin. • A switching current flows through the PGND (4th) pin along the connection between COUT and the MPM80 and therefore the common impedance of the GND loop and the switching current cause a voltage drop. Note that connecting this circuit to the GND point for output voltage detecting resistance may result in deterioration of regulation. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 11 March 11, 2013 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM8x Series Functional Block Diagram 3 VIN 6 VO MIC L1 C1 C2 C3 Control IC 7 FB 4 PGND Pin-out Diagram NC 2 3 VIN PGND 4 5 SGND VO FB 6 7 5 SGND Pin List Table Number Name 2 NC Function Not connected 3 VIN 4 PGND Ground, power circuits Power input 5 SGND Ground, control circuits 6 VO Output 7 FB Feedback MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 12 March 11, 2013 2 A Non-Isolated Step-Down DC / DC Converter Modules MPM8x Series 4.2 ±0.2 16.9 ±0.3 Ø3.2±0.2 4±0.2 10 ±0.2 ゲートバリ Gate burr 0.5 Package Outline Drawing, TO-220-8L 1.1MAX Marking surface 注 6X0.67 ±0.15 7XP1.17±0.15, t = 8.19 Measured at pin root 1) (5.4) R (2X R-end 6X0.55 +0.2 -0.1 10.4 ±0.5 5 ±0.5 2.6 ±0.1 Measured at root of pin 0.45 +0.2 -0.1 5.08 ±0.5 Measured at pin tip Pin connected internally 0.5 1 23 4 5 6 7 8 Unit: mm Gate burr: 0,3 mm (max) Pin core material: Cu Pin treatment: Cu + solder dip Product weight: Approximately 20 g Heatsink screw tightening torque: 6 to 8 kgf • cm 0.5 Front view 0.5 0.5 Side view Pb-free. Device composition compliant with the RoHS directive. Package Marking Line 1. Product name: MPM8x Line 1. Lot number 1st character: Last one digit of year 2nd character: Manufacture month Jan. to Sep. = 1 to 9 Oct. = O, Nov. = N, Dec. = D 3rd and 4th characters: Manufacture day of month, 1 to 31 MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 13 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules Cautions and Warnings • The parallel operation to increase the current is not available. • Thermal shutdown. The MPM01 has a thermal protection circuit. This circuit keeps the IC from overheating due to overload. But this circuit cannot guarantee long-term reliability against continuously overloaded status. • Heat radiation and reliability. The reliability of an IC is inseparable from the temperature in its operation. Careful consideration should be given to heat radiation and a sufficient safety margin must be allowed when designing a heatsink. When mounting the MPM01 to the heatsink, be sure to apply silicone grease and securely screw it. Please use one of the following greases we suggest: Type G746 YG6260 SC102 Suppliers Shin-Etsu Chemical Co., Ltd. Momentive Performance Materials Inc. Dow Corning Toray Co., Ltd. • Cautions for mounting to heatsink. When the flatness around screw holes is insufficient, such as when mounting the product to the heatsink with extruded (burred) screw holes, the product can be damaged even with a lower screw torque than the recommended value. For mounting products, the mounting surface flatness should be 0.05 mm or less. Please select suitable screws for product shape. Do not use a flathead machine screw because of the stress to products. A tapping screw is not recommended for the packages. When using tapping screws, a screw may enter diagonally, not vertically, depending on the conditions of hole before threading or the work situation. That may stress on the products and may cause failures. For tightening screws, if a tightening tool (such as a driver) hits the product, the package may crack, and stress, which shortens the element lifetimes and can cause the destruction, is put on internally. Tightening with an air driver makes a large impact. A screw torque higher than recommended torque can be applied and the package may be damaged. Therefore, an electric driver is recommended. When the package is secured at two or more places, tighten with the specified torque, after pre-tightening with a torque at all places. For using a driver, torque control is mandatory. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 14 March 11, 2013 MPM8x Series 2 A Non-Isolated Step-Down DC / DC Converter Modules • 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. MPM80-DS, Rev. 0.1 SANKEN ELECTRIC CO., LTD. 15 March 11, 2013