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User Guide for muRata models including: MYMGK1R820 Series, MonoBK 20A DCDC Converter Module, MYMGK1R820 Series MonoBK 20A DCDC Converter Module, 20A DCDC Converter Module, DCDC Converter Module, Converter Module, Module
ABSTRACT. This user's guide provides information on the correct usage of the test board and an explanation of the test points and the parts on the board.
MYMGK1R820 series | Evaluation manual | DC-DC Converter
1 mar 2023 — ABSTRACT. This user's guide provides information on the correct usage of the test board and an explanation of the test points and the parts on the board.
File Info : application/pdf, 15 Pages, 730.80KB
DocumentDocumentMonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module ABSTRACT This user's guide provides information on the correct usage of the test board and an explanation of the test points and the parts on the board. The test board features of the MYMGK1R820 series are configured for fixed frequency synchronous operation. The test board operates over the entire input voltage range of the MYMGK1R820 series. The minimum input and the output capacitors are included on the board. Table of Contents Description ..................................................................... 2 Performance Summary .................................................. 3 Quick Start Guide ........................................................... 4 Evaluation Overview ................................................................... 4 Terminal Functions ..................................................................... 5 Power Input and Output Descriptions .......................... 5 Test Point Descriptions ................................................. 5 EVM Connection............................................................. 6 Start-Up Procedure ........................................................ 6 Performance Data ........................................................... 7 MYMGK1R820 series EVM Bill of Materials (BOM) .... 13 MYMGK1R820 series EVM Schematic ........................ 13 EVM PCB Layout .......................................................... 14 Notices........................................................................... 15 CAUTION .............................................................. 15 Sales Contact................................................................ 15 Disclaimers ................................................................... 15 Copyright and Trademark ............................................ 15 http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 1 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Description This EVM features the MYMGK1R820 series fixed frequency synchronous buck converter switching topology with 4.5 or 8V to 8 or 15V input voltage range. The output voltage is fixed 1.0V but it is possible to change output voltage by external resistors. The full output current rating of the device can be supplied by the EVM. Input and output capacitors are mounted on the board to accommodate the entire range of input and output voltages. Monitoring test points are provided to allow measurement of voltage, efficiency, power dissipation and load regulation. The control switch and component footprints are provided for use of the ON/OFF, PWGOOD(Power good signal output), and Remote Sensing(+) features of the module. The EVM uses a recommended PCB layout that minimizes output ripple and noise. Detailed application information for MYMGK1R820 series is available in the datasheet. Figure 1. Evaluation Board http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 2 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Performance Summary Parameter Table 1. Performance Summary Symbol Conditions Min INPUT SUPPLY MYMGK1R820FRSR 4.5 Input Voltage Range VIN MYMGK1R820ERSR 8 ON/OFF pin Low Voltage Operate ON -0.3 MYMGK1R820FRSR 1.8 ON/OFF pin High Voltage MYMGK1R820ERSR 1.8 Typ Max Units - 8.0 V - 15 - 0.6 V - 6.3 V - 6.3 OUTPUT Output Voltage Adjustable Range VOUT IOUT=0 to 20A 0.7 Output Current IOUT 0 Efficiency VIN=5V, VOUT=1.8V - (MYMGK1R820FRSR) IOUT=20A VOUT=1.0V - EFF Efficiency VIN=12V, VOUT=1.8V - (MYMGK1R820ERSR) IOUT=20A VOUT=1.0V - If the output is shorted to GND, DC-DC converter shall operate in a hiccup Short Circuit Protection SCP mode. After the short circuit event has - cleared, the output is automatically brought back into regulation. - 1.8 V - 20 A 89.2 - 84.1 - % 87.8 - 81.5 - 30 - A http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 3 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Quick Start Guide Figure 2. highlights the user interface items associated with the EVM. The VIN power terminals are used for connection to the host input supply and the VOUT power terminals are used for connection to the load. Sense (+/-) test points for both VIN and VOUT, located near the power terminals are intended to be used as voltage monitoring points where voltmeters can be connected to measure VIN and VOUT. Do not connect these S+ and S- monitoring test points as the input supply or output load connection points. The Remote ON/OFF control switch located to the center of the device makes available to test the features of the device. The Power-Good signal can be used with the PWGOOD Pin (The PWGOOD pin is pulled up internally). The remote sensing function can be used by connecting the Sense pin to the load point and rejecting R1 resistor. About the initial EVM, sense pin is connected to the VOUT in the EVM with R1 resistor. Evaluation Overview VOUT sense (+) VOUT power (+) VOUT power (-) VOUT sense (-) Figure 2. MYC0409 EVM User Interface (Top view) Remote Sensing (+) Terminal pin ON/OFF Voltage Monitor pin PWGOOD Monitor pin VIN sense(-) VIN power (-) VIN power (+) Figure.2 EVM Overview VIN sense (+) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 4 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Terminal Functions Function/Terminal I/O Table 2. Terminal Functions Description VIN Power (+/-) I Power input pin and input ground pin VOUT Power (+/-) ON/OFF VIN sense (+/-) O Power output pin and output ground pin - ON/OFF connection. If this is high level, the module operates. (This pin is pulled up internally) I Sensing pin for measuring the input voltage VOUT sense (+/-) Sense PWGOOD O Sensing pin for measuring the output voltage Output Voltage Sensing pin. - (It is not a problem to be left open about this pin because it is connected to VOUT internally with 10ohm resistor) - Power good output. (Not open drain, this pin is pulled up to 5.0V internally) Power Input and Output Descriptions The VIN power terminals are used to connect to the input supply, and the VOUT power terminal is used to connect to the load. Caution: Do not use sense (+) and sense (-) terminals as the input supply or output load connection points. The PCB traces connecting to these sense terminals are not designed to support high currents. High currents may cause damage the PCB traces. Test Point Descriptions The sense (+) and sense (-) test points for both VIN and VOUT, located near the power terminal are intended to be used as voltage monitoring points where voltmeters can be connected to measure VIN and VOUT. http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 5 of 15 EVM Connection - VIN + POWER SUPPLY IIN + - MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Remote Sensing (Option) Figure 3. EVM Connection + - IOUT + LOAD - + VOUT - Figure.3 Start-Up Procedure 1. Set the power supply current limit to at least 15A(*FRSR) or 8A(*ERSR). Connect the power supply to VIN power (+) and VIN power (-). 2. Connect one electronic load with more than 20A capacity between VOUT power (+) and VOUT power (-). 3. Set ON/OFF switch off, then turn the load switch off. (Recommend) 4. Set Input voltage to 5V(*FRSR) or 12V(*ERSR) and turn it on. 5. Set ON/OFF switch on, then turn the load switch on. (Recommend) 6. If you need to change the output voltage, please change the R11 and R12 according to the DATA SHEET. http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 6 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Performance Data of MYMGK1R820ERSR Figure 4. through Figure 9. demonstrate the MYMGK1R820ERSR* performance. The following test results show the typical performance of the evaluation board. Output current Iout [A] Figure 4. MYMGK1R820ERSR* Efficiency (VOUT=1.0V, Ta=25degC) Output current Iout [A] Figure 5. MYMGK1R820ERSR* Output Voltage (VOUT=1.0V, Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 7 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module . ON/OFF 2V/div Vout 500mV/div PWGOOD 5V/div 1ms/div Figure 6. Start-up Waveform (VIN=12V, VOUT=1.0V, IOUT=20A, Ta=25degC) Vout(AC) 5mV/div 1us/div Figure 7. Output Ripple Waveform (VIN=12V, VOUT=1.0V, IOUT=20A, COUT=660uF, Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 8 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Vout(AC) 50mV/div Iout 20A/div 20us/div Figure 8. Load Transient Response Waveform (VIN=12V, VOUT=1.0V, COUT=660uF, IOUT=10 to 20A (2.5A/us), Ta=25degC) Vout(AC) 50mV/div Iout 20A/div 20us/div Figure 9. Load Transient Response Waveform (VIN=12V, VOUT=1.0V, COUT=660uF, IOUT=20 to 10A (2.5A/us), Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 9 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Performance Data of MYMGK1R820FRSR Figure 10. through Figure 15. demonstrate the MYMGK1R820FRSR* performance. The following test results show the typical performance of the evaluation board. Output current Iout [A] Figure 10. MYMGK1R820FRSR* Efficiency (VOUT=1.0V, Ta=25degC) Output curIrOenUtTI(oAu)t [A] Figure 11. MYMGK1R820FRSR* Output Voltage (VOUT=1.0V, Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 10 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module ON/OFF 2V/div Vout 500mV/div PWGOOD 5V/div 1ms/div Figure 12. MYMGK1R820FRSR* Start-up Waveform (VIN=5V, VOUT=1.0V, IOUT=20A, Ta=25degC) Vout(AC) 5mV/div 1us/div Figure 13. MYMGK1R820FRSR* VOUT Ripple Waveform (VIN=5V, VOUT=1.0V, IOUT=20A, COUT=660uF, Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 11 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module 1 Vout(AC) 50mV/div Iout 20A/div 20us/div Figure 14. MYMGK1R820FRSR* Load Transient Response Waveform (VIN=5V, VOUT=1.0V, COUT=660uF, IOUT=10 to 20A (2.5A/us), Ta=25degC) Vout(AC) 50mV/div Iout 20A/div 20us/div Figure 15. MYMGK1R820FRSR* Load Transient Response Waveform (VIN=5V, VOUT=1.0V, COUT=660uF, IOUT=20 to 10A (2.5A/us), Ta=25degC) http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 12 of 15 MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module MYMGK1R820 series EVM Bill of Materials (BOM) Reference Qty Value Table 3. MYMGK1R820 series EVM Bill of Materials Description Size Part Number Manufacturer MYMGK1R820FRSR* (Vin=4.5-5.5V) C1, C2 2 47uF Input capacitor 47uF, 10V, +/-10%, X7R 3225M GRM32ER71A476KE15 Murata C3, C4, C5 3 220uF Output capacitor 220uF, 4V, +/-20%, X6S 3225M GRM32EC80G227ME05 Murata Total Output voltage trimming resistor R11, R12 2 16.3kohm (reference) 0.5%, 1/10W 1608M KOA R1 1 0ohm For short the circuit 1608M RK73Z1JTTD KOA MYMGK1R820ERSR*, MYMGK1R820FRSR* (Vin=8-14V or 5.5-8.0V) C1, C2 2 22uF Input capacitor 22uF, 25V, +/-10%, X7R 3225M GRM32ER71E226KE15 Murata C3, C4, C5 3 220uF Output capacitor 220uF, 4V, +/-20%, X6S 3225M GRM32EC80G227ME05 Murata Total Output voltage trimming resistor R11, R12 2 15.9kohm (reference) 0.5%, 1/10W 1608M KOA R1 1 0ohm For short the circuit 1608M RK73Z1JTTD KOA MYMGK1R820 series EVM Schematic Figure 16. MYMGK1R820 series EVM schematic http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 13 of 15 EVM PCB Layout MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module Figure 17. Evaluation Board Layout (Top) Size : mm http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 14 of 15 Notices MonoBKTM MYMGK1R820 series Document Category : User guide 20A DCDC converter module CAUTION 1. EVMs are not finished products. Murata delivers EVM for use in a research and development evaluation purpose only. 2. Please make sure that your product has been evaluated and confirmed to your specifications when our product is used in your product. 3. All the items and parameters in this approval sheet for product specification are based on the premise that our product is used for the purpose, under the condition and in the environment agreed upon between you and us. You are requested not to use our product in a manner deviating from such agreement. 4. If you have any concerns about materials other than those listed in the RoHS directive, please contact us. 5. Be sure to provide an appropriate fail-safe functionality in your product to prevent secondary damage that could be caused by the abnormal function or failure of our product. 6. Do not allow our product to be exposed to excess moisture under any circumstances. Contact form https://www.murata.com/contactform?Product=Power%20Device Disclaimers The information in this document is believed to be reliable. However, Murata assumes no liability for the use of this information. The use shall be entirely at the user's own risk. No patent rights or licenses to any circuits described in this document are implied or granted to any third party. Murata's products are not designed or intended for use in devices or systems intended for a surgical implant, or in other applications intended to support or sustain life, or in any application in which the failure of the Murata product could create a situation in which personal injury or death might occur. Murata assumes no liability for damages, including consequential or incidental damages, arising out of the use of its products in such applications. Copyright and Trademark ©2022 Murata Manufacturing Co., Ltd. All rights reserved. This product is subject to the following operating requirements ! and the Life and Safety Critical Application Sales Policy: Refer to: https://power.murata.com/en/requirements Murata Manufacturing Co., Ltd makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Spec and cautions are subject to change without notice. © 2022 Murata Manufacturing Co., Ltd http://www.murata.com/products/power Copyright ©2022 Murata Manufacturing Co., Ltd. All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 15 of 15