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Related Manuals for Rohm BD8303MUV EVK
Summary of Contents for Rohm BD8303MUV EVK
- Page 1 Synchronous Buck-Boost Controller BD8303MUV EVK （BD8303MUV-EVK-001）...
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Page 2: High Voltage Safety Precautions
[8] Be sure to wear insulated gloves when handling is required during operation. After Use [9] The ROHM Evaluation Board contains the circuits which store the high voltage. Since it stores the charges even after the connected power circuits are cut, please discharge the electricity after using it, and please deal with it after confirming such electric discharge. - Page 3 BD8303MUV EVK BD8303MUV-EVK-001 (7.4V → 12V, 1.5A) Introduction This user’s guide will provide the steps necessary to operate the BD8303MUV-EVK-001 and evaluate ROHM’s BD8303MUV synchronous buck-boost DC/DC controller. Component selection, operating procedures and application data are included. Description This EVK uses a synchronous rectifying buck-boost DC / DC controller IC BD8303MUV to output 12V from an input voltage of 4V to 14V.
- Page 4 BD8303MUV-EVK-001 User’s Guide Figure 1. BD8303MUV-EVK-001(Top View) Figure 2. BD8303MUV-EVK-001(Bottom View) EVK Schematic VOUT=12V/1.5A VIN=7.4V Figure 3. BD8303MUV-EVK-001 Schematic © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023...
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Page 5: Operating Procedure
The board does not support hot plugging protection. Do not perform hot plugging on this board. Operation State Settings Table 2 is BD8303MUV condition using STB_SW. Table 2. STB_SW Settings STB_SW state BD8303MUV Condition ON (short to VIN) Enable OFF (short to GND) Shutdown © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023... - Page 6 Recommended parts are selected from those products and information available at the time this data sheet (Rev.001) was released. If supply conditions change and parts are not available, use similar parts. © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023...
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Page 7: Board Layout
Followings are the layout of BD8303MUV-EVK-001 Figure 4. Top PCB image Figure 5. Bottom PCB image (Top View) (Top View) Figure 6. Top Layer Silkscreen layout Figure 7. Top Layer layout (Top View) (Top View) © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023... - Page 8 BD8303MUV-EVK-001 User’s Guide Figure 8. Middle1 Layer (VIN) layout Figure 9. Middle2 Layer (GND) layout (Top View) (Top View) Figure 10. Bottom Layer layout (Top View) © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023...
- Page 9 Figure 11. Efficiency vs Load Current (VCC=4V to 14V, VOUT=12V) =500 mV/div =500 mV/div =500mA/div =500mA/div Slew rate=30mA/μs Slew rate=30mA/μs Time=500 µs/div Time=500 µs/div Figure 12. Transient Load Response Figure 13. Transient Load Response (VCC=7.4V, I =0.1A→1.5A) (VCC=7.4V, I =1.5A→0.1A) © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023...
- Page 10 BD8303MUV-EVK-001 User’s Guide Reference Application Data - continued SW1=5V/div =50mV/div SW2=5V/div Time=1 µs/div Time=1 µs/div Figure 14. Output Ripple Voltage Figure 15. Output Ripple Voltage (VCC=7.4V, I =1.5A) (VCC=7.4V, I =1.5A) © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023...
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Page 11: Revision History
Add comment. " Recommended parts are selected from those products and information available at the time this user’s guide (Rev.001) was released. If supply conditions change and parts are not available, use similar parts." p.5 Copper Thickness changed from 2oz to 1oz. © 2021 ROHM Co., Ltd. No. 63UG045E Rev.002 OCT.2023... - Page 12 Specific Applications). Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses, or losses incurred by you or third parties arising from the use of ROHM Products for Specific Applications.
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