* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download STEVAL-PSQ001V1
Spark-gap transmitter wikipedia , lookup
Audio power wikipedia , lookup
Power engineering wikipedia , lookup
Electrical ballast wikipedia , lookup
Pulse-width modulation wikipedia , lookup
Current source wikipedia , lookup
Power inverter wikipedia , lookup
Amtrak's 25 Hz traction power system wikipedia , lookup
Electrical substation wikipedia , lookup
Integrating ADC wikipedia , lookup
Three-phase electric power wikipedia , lookup
Variable-frequency drive wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
History of electric power transmission wikipedia , lookup
Immunity-aware programming wikipedia , lookup
Power MOSFET wikipedia , lookup
Distribution management system wikipedia , lookup
Schmitt trigger wikipedia , lookup
Power electronics wikipedia , lookup
Buck converter wikipedia , lookup
Stray voltage wikipedia , lookup
Alternating current wikipedia , lookup
Surge protector wikipedia , lookup
Voltage regulator wikipedia , lookup
Opto-isolator wikipedia , lookup
Switched-mode power supply wikipedia , lookup
STEVAL-PSQ001V1 Power management for CPU, FPGA and memory based on the PM6680A Data Brief Features ■ Input: 5 - 36 VDC, surge protection ■ Output voltages: – Output1 (Vcore) selectable from: 0.9, 1.0, 1.2, 1.5, 1.8 or 2.5 V, 4 A continuously (6 A peak), tolerance: 3% – Output2 (Vi/o) selectable from: 1.0, 1.2, 1.5, 1.8, 2.5 V or 3.3 V, 2 A continuously (3 A peak), tolerance: 3% – Output3 Vsys: 3.3 V 0.4 A (0.8 A peak), tolerance: 4% – Output3 Vaux: 2.5 V, 0.4 A, tolerance: 2% ■ Analog 5: 5 V, 0.8 A, tolerance: 4% ■ Analog 3.3 V: 3.3 V, 0.15 A, tolerance: 2% STEVAL-PSQ001V1 Description reset. This limit is typically ± 3 or 5 %. On the other hand, digital device consumption can change very fast (approx. several amps in several hundred nanoseconds). The power supply must be capable of reacting very quickly with a minimum of over/under voltage, especially in cases where very low voltage output is required. There is additional stress placed on power supplies in digital applications for industrial use. The industrial standard bus is 24 V, but this voltage fluctuates and the maximum required input voltage level can be up to 36 V. Additional surge protection is also mandatory for power supply input in industrial applications. The purpose of this evaluation board is to address all of required parameters outlined above. This means satisfying industrial input requirements (operating voltage of up to 36 V) and generating several output voltages for middle power applications (up to several amps). The main output voltage level can be set easily. The main purpose of this evaluation board is to show basic principles used for design of the power supply and to give users a working prototype for testing and daily use. The trend in recent years in the supply of MCUs, CPUs, memories, FPGAs etc. is to reduce the supply voltage, increase supply current and provide various voltage levels for different devices in one platform. A typical example of this is the FPGA. FPGAs contain core parts which operate with low level voltage, interface parts placed between the core and the output, system parts, etc. It is important to note that each family of parts has a slightly different voltage level and the trend is toward decreasing voltage for each new family. The lowest operating voltage currently is 1 V, and this can be expected to drop to 0.9 V or 0.8 V in the near future. The situation is similar with other parts of digital solutions. Typically, the main CPU, memory, and interfaces require different supply voltage levels. Low operating voltage also bring another challenge - transient. Digital devices are typically sensitive to voltage level. If voltage drops below or crosses over established limits, the device is February 2008 Rev 1 For further information contact your local STMicroelectronics sales office. www.BDTIC.com/ST 1/4 www.st.com 4 GND io S32 S33 FB1 S8 0.9V S9 1V R107 9k1 R101 1k Vio 0.9 - 2.5V/2A S34 S35 Input R108 820k R102 R10 2 2k S10 1.2V R103 3k S11 1.5V R1043k R10 3k S12 1.8V R105 R106 7k5 110k C22 330u/6.3V C18 10u/50V Vin R11 300R C21 100pF C20 560pF L3 4.7uH/3A C35 D8 STPS2L40 R40 R4 0 10R 100n R39 R3 9 10R D1 SMAJ33A 1 8 7 3 6 5 4V7 R24 10R R23 10R R2 VLDO R28 R2 8 10k 2 4 D10 C36 100pF R29 100k Vin VLDO STS4DNF60 Q1 C1 47uF/50V D3 R34 10k R3 R31 10k R3 R35 51k S3 CH2 EN/SUS 1 R30 R3 0 0R 5 7 27 2 8 17 12 13 11 10 9 R25 10R U5 PM6680 PGOOD2 R10 1k2 C19 100n C15 470n VLDO C9 220p C3 220p C31 220n R37 R3 7 47R C8 4.7u/35V C2 4.7u/35V C14 4.7u/10V 36V D5 L5 10uH/1A 36V BOOT2 SHDN FB2 PGOOD2 COMP2 OUT2 V5SW CSENSE2 LGATE2 PHASE2 HGATE2 3 S4 R36 51k U1 L5970AD Vcc COMP COMP Vcc U3 L5970AD 5k6 R42 LGATE1 PHASE1 HGATE1 BOOT1 D7 OUT1 PGND FB1 SGND1 SGND2 PGOOD1 COMP1 C30 100n SKIP mode S7 R26 10R C17 100n 28 1 16 26 30 29 14 VLDO 20 R19 1k2 15 21 22 23 BAW56/SOT CSENSE1 S6 5k6 R41 C16 3.3u/35V R9 3R3 C10 22n R5 10k 4 8 R1 4k7 C4 22n Vin CH1 EN/SUS S5 8 4 SYNC SY 2 1 Vin 19 Vin SYNC SY 2 GND GN D 7 FB OUT S1 1 5 Vin D4 STPS2L40 1 5 R33 0R R32 10k VLDO Q3 STS7NF60L R22 R2 2 10R R21 R2 1 10R STS7NF60L C25 100n Q2 Vin D6 STPS2L40 Vsys EN S2 FB OUT Vanalog EN INH 3 VREF 6 VREF 6 GND 7 INH 3 2 31 EN1 25 2 EN2 4 18 LDO5 O5 R7 240k R3 20k C27 100pF C26 560pF R20 300R 1 VIN INH 4 C28 330u/6.3V C29 330u/6.3V C24 10u/50V 1n 1n R206 R205 110k 7k5 C33 C32 R204 3k R20 S17 2.5V 1 C13 10u/4V C7 10u/6V RST R203 3k S16 1.8V MR RSTIN Vcc2 Vcc1 R208 6k8 R207 2k2 R2022k R20 2k S15 1.5V 1 U6 STM6719TEWB6F PGOOD2 3 4 5 6 VOUT OUT U4 KF25_SOIC8 GND BYPASS SHDN IN VLDO 8 5 2 3 U2 LK112_33 Vaux C12 100n C6 100n 5 FB2R C11 100u/6V C5 47uF/10V 100n R38 10R R38 3.3uH/6A L4 C34 C23 10u/50V Vin R8 10k R4 5k6 R27 10R R27 STPS2L40 D9 D6A STPS1L40M R6 18k L2 15uH/1.5A D4A STPS1L40M R2 120k L1 15uH/1.5A GND GND GND GN GN GND 2 3 6 7 J16 3 www.BDTIC.com/ST 2 2/4 1 NC Vcc VREF 32 SKIP SK IP 24 FSEL FSE L 3 Vss S21 R209 110k GND R201 R20 1 1k S14 1.2V STPS2L40 J15 J1 Reset GND J14 Reset S31 S30 S29 S28 Vcore GND FB2R FB2 Vcore 0.9 - 2.5V/4A S24 S25 S26 S27 S13 1V S23 Vaux 2.5V/400mA Vsys 3.3V/400mA S22 Vsys GND Analog S20 3.3V/150mA Vaux D11 S18 5V/400mA S19 V5V Figure 1. 2 1 6 Circuit schematic STEVAL-PSQ001V1 Circuit schematic Schematic STEVAL-PSQ001V1 2 Revision history Revision history Table 1. Document revision history Date Revision 18-Feb-2008 1 Changes Initial release. 3/4 www.BDTIC.com/ST STEVAL-PSQ001V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 4/4 www.BDTIC.com/ST