* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download iSOLATeD DC/DC COnTrOLLerS fOr inTerMeDiATe BuS vOLTAgeS
Transformer wikipedia , lookup
Spark-gap transmitter wikipedia , lookup
Immunity-aware programming wikipedia , lookup
Stepper motor wikipedia , lookup
Power engineering wikipedia , lookup
Mercury-arc valve wikipedia , lookup
Electrical ballast wikipedia , lookup
Pulse-width modulation wikipedia , lookup
Power inverter wikipedia , lookup
Three-phase electric power wikipedia , lookup
History of electric power transmission wikipedia , lookup
Electrical substation wikipedia , lookup
Integrating ADC wikipedia , lookup
Shockley–Queisser limit wikipedia , lookup
Current source wikipedia , lookup
Variable-frequency drive wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Distribution management system wikipedia , lookup
Schmitt trigger wikipedia , lookup
Surge protector wikipedia , lookup
Stray voltage wikipedia , lookup
Power MOSFET wikipedia , lookup
Alternating current wikipedia , lookup
Power electronics wikipedia , lookup
Voltage regulator wikipedia , lookup
Current mirror wikipedia , lookup
Voltage optimisation wikipedia , lookup
Mains electricity wikipedia , lookup
Switched-mode power supply wikipedia , lookup
V I S HAY INTERTE C HNOLO G Y , IN C . Power ICs ISOL ATED DC/DC CONTROLLERS FOR INTERMEDIATE BUS VOLTAGES in Se mi- Re gulate d a nd Unre gulate d Half- B r idge Topologie s p r o d uc t o v e r v i e w w w w. v i s h a y. c o m Isolated DC/DC Controllers for Intermediate Bus Voltages in Semi-Regulated and Unregulated Half-Bridge Topologies SiP11205 and SiP11206 FEATURES • 36-V to 75-V input voltage range • Fixed 50 % duty cycle for DC transformer mode for SiP11206 • Withstand 100-V, 100-ms transient capability • Integrated ±1.6 A typical high- and low-side MOSFET drivers • Hiccup mode • Oscillator frequency is programmable from 200 kHz to 1 MHz (100-kHz to 500-kHz switching frequency) and can be externally synchronized • Chip UVLO function • System low input voltage detection • Voltage feed-forward compensation for SiP11205 • Programmable soft-start function • Over temperature protection (160 °C) • High voltage pre-regulator operates during start-up • Greater than 95.5 % efficiency for 42-V to 55-V input range • Current sensing on primary low-side switch • Better than 2 % line regulation at 9 A PACKAGE AND PIN CONFIGURATION DH BST 1 COMP PGND AGND R DB C OSC VREF R OSC SS 1 2 3 4 96 5 6 94 7 8 98 DL TOP VIEW CS 100 LX Efficiency (%) V IN VCC V INDET MLP44-16 PowerPAK Package and TSSOP-16 PowerPAK Package Top View 16 15 14 13 12 11 10 9 92 90 88 to work on the primary side of an isolated halfThe new Vishay Siliconix SiP11205 and SiP11206 controllers are designed bridge intermediate bus converter (IBC) in telecom and network equipment and in 1/16 or 1/8 power modules where Efficiency @ 42 Vin standard 86 Efficiency @ 48 V bus voltages such as 48 V need to be converted to 12 V or lower intermediate voltages. The new devices simplify designs in Efficiency @ 55 Vin and reduce solution costs by eliminating the need for separate controller84and high-voltage MOSFET driver components for secondary synchronous rectification, while their half-bridge architecture further reduces costs and space requirements by 82 enabling the use of lower-voltage components. 80 0 1Fixed 2 Duty 3 4 Cycle 5 6 SiP11206: 100 100 98 98 96 96 Efficiency (%) Efficiency (%) SiP11205: Feed-forward for Semi-Regulated Output 94 92 90 88 Efficiency @ 42 Vin Efficiency @ 48 Vin Efficiency @ 55 Vin 86 84 82 8 Io(A) 9 10 11 12 13 14 15 94 92 90 88 Efficiency @ 42 V Efficiency @ 48 V Efficiency @ 55 V 86 84 82 80 80 0 100 98 ) 7 96 1 2 3 4 5 6 7 8 Io(A) 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 8 Io(A) 9 10 11 12 13 14 15 The SiP11205 and SiP11206 controllers step down voltages with > 95 % efficiency. They feature an input voltage range of 36 V to 75 V and comfortably handle 100-V transients for 100 ms in compliance with ETSI 300-132-2. Integrated ±1.6-A high-voltage MOSFET drivers allow each IC to drive both the low- and high-side switching devices in a half-bridge converter. The oscillator frequency is programmable from 200 kHz to 1 MHz, the widest such range in the industry, and can be synchronized to an external sync source. Self-driven synchronous rectification eliminates the requirement for secondary-side MOSFET drivers and isolated pulse drivers, reducing costs and simplifying designs. The SiP11205 features input voltage sensing and feed-forward circuitry that keeps the output voltage within a tight range without the use of optocouplers or voltage feedback circuitry. The SiP11206 differs by allowing the converter to work at the optimal duty cycle within its full input voltage range in DC transformer mode, which greatly improves system efficiency. For designs requiring a fully regulated IBC, Vishay offers the Si9122A half-bridge controller with the SiP11203 or SiP11204 secondary synchronous rectifier driver. SiP11206 Load and Line Regulation SiP11205 Load and Line Regulation VIN=42 V VIN=42 VVIN=48 V VIN=48 VVIN=55 V VIN=55 V 14.00 13.00 13.00 13.00 13.00 12.00 12.00 12.00 12.00 11.00 11.00 11.00 11.00 10.00 10.00 10.00 10.00 9.00 9.00 9.00 9.00 8.00 8.00 0 0 3 3 9 9 Load Current (A) Load Current (A) 6 6 12 12 15 15 Output Voltage (V) 14.00 Output Voltage (V) 14.00 14.00 Output Voltage (V) Output Voltage (V) VIN=42 VVIN=42 VVIN=48 VVIN=48 VVIN=55 VVIN=55 V 8.00 8.00 0 0 3 3 6 9 9 Load(A) Current (A) Load Current 6 12 12 15 15 The SiP11205 and SiP11206 offer a comprehensive range of protection features. The controller supply voltage is linearly regulated up to its target voltage with an on-chip pre-regulator circuit. Advanced current monitoring and control circuitry allows the user to set the maximum current in the primary circuit. This feature protects against overcurrent conditions, output short circuits, and errors when paralleling power supplies. Additional features include low input voltage detection, programmable soft-start, and overtemperature protection. Basic Application Circuit Vin+ Si2303BDS 36 V to 75 V 100 V/100 ms Vin- 5 6 7 8 BST V IN DH V CC LX COMP CS AGND DL PGND SS V REF R DB R OSC COSC 16 15 14 Si7848DP 4 V INDET 13 12 Si7848DP 2 Si7456DP 1 3 11 10 Vo+ Vo- 9 Si2303BDS Si7456DP SiP11206 R DB Start-up Circuit IBC Controller Power Stage Isolation Transformer Self-driven Synchronous Rectifiers Output Filter NOTICE Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay’s terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Semiconductors: Rectifiers • High-Power Diodes and Thyristors • Small-Signal Diodes • Zener and Suppressor Diodes • FETs • RF Transistors • Optoelectronics • ICs • Modules and Assemblies Passive Components: Resistive Products • Magnetics • Capacitors • Strain Gage Transducers and Stress Analysis Systems One of the World’s Largest Manufacturers Worldwide Sales Contacts of Discrete Semiconductors and Passive Components The Americas EUROPE united states germany Vishay Americas One Greenwich Place Shelton, CT 06484 United States Ph: +1-402-563-6866 Fax: +1-402-563-6296 Vishay europe sales GmbH Geheimrat-Rosenthal-Str. 100 95100 Selb Germany Ph: +49-9287-71-0 Fax: +49-9287-70435 Asia france singapore Vishay S.A. 199, blvd de la madelEine 06003 nice, cedex 1 France Ph: +33-4-9337-2920 Fax: +33-4-9337-2997 Vishay intertechnology Asia Pte Ltd. 25 Tampines Street 92 Keppel Building #02-00 Singapore 528877 Ph: +65-6788-6668 Fax: +65-6788-0988 p.r. China Vishay Trading (Shanghai) Co., Ltd. 15D, Sun Tong Infoport Plaza 55 Huai Hai West Road Shanghai 200030 P.R. China PH: +86-21-5258 5000 FAX: +86-21-5258 7979 united kingdom Vishay Ltd. Pallion Industrial Estate Sunderland SR4 6SU united kingdom Ph: +44-191-514-4155 Fax: +44-191-567-8262 japan vishay japan CO., LTD. MG Ikenohata Bldg. 4F 1-2-18, Ikenohata Taito-ku Tokyo 110-0008 Japan Ph: +81-3-5832-6210 fax: +81-3-5832-6260 w w w. v i s h a y. c o m VMN-PL0405-0805