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| Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 General Description An SBD for overheating detection is incorporated together with a secondary side rectification FRD into a TO220F package. By using the temperature change of the leakage current of the built-in SBD, high-precision heating protection can be performed without using expensive temperature sensors, such as a thermistor and a posistor. December, 2005 Package---TO220F-2Pin Applications * For an overcurrent protection, a partial short circuit and an impedance short protection. An overcurrent protection is possible for a secondary side output, especially for each output of a multi-output power supply. * For an overcurrent protection of a peak-load power supply units. Thermal protection is possible even for the unit kept in a peak-load state. Typical connection The typical connection below shows that the overheating protection with a small component count and a minimal temperature variation is realized and a single diode enables to combine a latch circuit with a overvoltage protection circuit. This circuit allows to adjust a latch temperature easily by adjusting a detection resistor. Note: In the case of dead short, the overheating protection is not available because there is no voltage appearing on the secondary-side. In this case, please protect the unit by the primary side detection as usual. Features * Built-in SBD for an overheating detection together with a FRD in a TO220F package. (By combining together in a single package, FMXB-2102 excels in heat performance.) * High-precision heating protection without expensive temperature sensors such as a thermistor and a posistor. Typical connection FMXB-2102 Voltage appears across the REX due to the IR of SBD in the FMXB-2102. When the voltage across the REX is raised up to the Vref of a shunt regulator by the rapid increase in the IR at high temperature, the latch circuit is operated. http://www.sanken-ele.co.jp/en/ 1/8 Sanken Electric Co.,Ltd. D01-005EA-051215 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 Die Structure: Silicon Planer Diode (FRD, SBD) December, 2005 1. Absolute Maximum Ratings and Electrical Characteristics Transient Peak Reverse Voltage Peak Reverse Voltage Average Forward Current Peak Surge Forward Current I2t Limiting Value Junction Temperature Storage Temperature Symbol Unit Rating Conditions VRSM VRM IF(AV) IFSM V V A A A2S C C 200 200 10 150 112.5 -40 to +150 -40 to+150 10msec. Half sine-wave, one shot 1msec t 10msec I2t Tj Tstg * Electrical Characteristics No. 1 2 3 Parameter Symbol Unit Rating Conditions Forward Voltage Drop Reverse Leakage Current Reverse Leakage Current Under High Temperature VF IR H*IR trr1 V A mA ns ns C/W 0.98 max. 200 max. 50 max. 30 max 25 max 4.0 max. IF=10A VR=VRM VR=VRM, Tj=150C IF=IRP=500mA 90% Recovery point IF=500mA, IRP=1A 75%Recovery point Between Junction and case 4 Reverse Recovery Time trr2 5 Thermal Resistance Rth(j-c) Sanken Electric Co.,Ltd. D01-005EA-051215 2/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 Parameter Symbol Unit Rating December, 2005 Conditions Transient Peak Reverse Voltage Peak Reverse Voltage Junction Temperature Storage Temperature VRSM VRM V V C C 90 90 -40 to +150 -40 to+150 Tj Tstg * Electrical Characteristics No. 1 Parameter Symbol Unit Rating min. 1.60 - typ. 2.30 - max. 100 2.0 3.00 55 Conditions Reverse Leakage Current IR1 IR2 A mA mA mA VR=15V VR=90V VR=15V, Tj=130C VR=90V, Tj=150C 2 Reverse Leakage Current Under High Temperature H*IR1 H*IR2 IRTjCharacteristics of SBD at 15V 5 Reverse Leakage Current (mA) 4 max typ. min 3 2 1 0 120 125 130 Junction Temperature 135 140 Sanken Electric Co.,Ltd. D01-005EA-051215 3/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 2. Package information 2-1 Package type, physical dimensions and material December, 2005 .3 3 4.0 8.4 16.9 0.8 3.9 (13.5) 10.0 4.2 2.8 C 0.5 Internal layout (1) Temperature detection SBD (2) FRD 1 *1 2 *2 3 2.6 1.35 (1) (2) 0.85 2.54 2.54 0.45 tolerance: 0.2 toler Unit: mm 2-2 Marking Marking Part Number Type Name Polarity Lot number 1st letter: Last digit of year 2nd letter: Month From 1 to 9 for Jan. to Sep., O for Oct., N for Nov., D for Dec. 3rd & 4th letter: Day e.g.: 5N28 (November 28, 2005) FMXB-2102 XB2102 Sanken Electric Co.,Ltd. D01-005EA-051215 4/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 3. Thermal protection Sample calculation for the operating temperature range. December, 2005 SE series IRTjCharacteristics of SBD at 15V 5 Reverse Leakage Current (mA) 4 max typ. min 3 2 1 0 120 125 130 Junction Temperature 135 140 When the voltage is generated across the REX by the IR of the SBD and this voltage is raised up to the Vref of the shunt regulator by the rapid increase in the IR at high temperature, the latch circuit is started to operate and the power supply unit stops its operation. Say Vref=2.5V, REX=1200. Then IR=2.5 / 1200 = 2.08mA. Hence, the figure above gives the thermal protection operating temperature range: 124C to 134.2C. Sanken Electric Co.,Ltd. D01-005EA-051215 5/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 December, 2005 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. Room3202, Maxdo Centre, Xingyi Road 8, Changning district, Shanghai, China Tel: 86-21-5208-1177 Fax: 86-21-5208-1757 India Saket Devices Pvt. Ltd. Office No.25, 2nd Floor, Bandal - Dhankude Plaza, Near PMT Depot, Paud Road, Kothrud, Pune - 411 038, India Tel: 91-20-5621-2340 Fax: 91-20-2528-5459 Japan Sanken Electric Co., Ltd. Overseas Sales Headquaters Metropolitan Plaza Bldg. 1-11-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-0021, Japan Tel: 81-3-3986-6164 Fax: 81-3-3986-8637 Korea Sanken Electric Korea Co., Ltd. Mirae Asset Life Bldg. 6F, 168 Kongduk-dong, Mapo-ku, Seoul, 121-705, Korea Tel: 82-2-714-3700 Fax: 82-2-3272-2145 Singapore Sanken Electric Singapore Pte. Ltd. 150 Beach Road, #14-03 The Gateway West, Singapore 189720 Tel: 65-6291-4755 Fax: 65-6297-1744 Taiwan 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 Sanken Electric Co.,Ltd. D01-005EA-051215 6/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 Europe France Allegro MicroSystems Europe Les Pleiades, Park Nord Annecy, 74370 Metz-Tessy, France Tel: 33-450512359 Fax: 33-450512083 December, 2005 United Kingdom Allegro MicroSystems Europe Limited Balfour House, Churchfield Road, Walton-on-Thames, Surrey KT12 2TD, U.K. Tel: 44-1932-253355 Fax: 44-1932-246622 North America United States Allegro MicroSystems, Inc. 115 Northeast Cutoff, Worcester, Massachusetts 01606, U.S.A. Tel: 1-508-853-5000 Fax: 1-508-853-3353 Allegro MicroSystems, Inc. (Southern California) 14 Hughes Street, Suite B105, Irvine, CA 92618 Tel: 1-949-460-2003 Fax: 1-949-460-7837 Sanken Electric Co.,Ltd. D01-005EA-051215 7/8 Fast Recovery Diode with built-in SBD for temperature detection FMXB-2102 CAUTION / WARNING December, 2005 The information in this publication has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Sanken reserves the right to make changes without further notice to any products herein in the interest of improvements in the performance, reliability, or manufacturability of its products. Before placing an order, Sanken advises its customers to obtain the latest version of the relevant information to verify that the information being relied upon is current. Application and operation examples described in this catalog 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. When using the products herein, the applicability and suitability of such products for the intended purpose or object shall be reviewed at the users' responsibility. Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure nd 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 catalog 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.). Before placing an order, the user's written consent to the specifications is requested. 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.), please contact your nearest Sanken sales representative to discuss and obtain written confirmation of your specifications. 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. This publication shall not be reproduced in whole or in part without prior written approval from Sanken. This is notification that you, as purchaser of the products/technology, are not allowed to perform any of the following: 1. Resell or retransfer these products/technology to any party intending to disturb international peace and security. 2. Use these products/technology yourself for activities disturbing international peace and security. 3. Allow any other party to use these products/technology for activities disturbing international peace and security. Also, as purchaser of these products/technology, you agree to follow the procedures for the export or transfer of these products/technology, under the Foreign Exchange and Foreign Trade Law, when you export or transfer the products/technology abroad. Sanken Electric Co.,Ltd. D01-005EA-051215 8/8 |
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