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Summary of Contents for Rohm REF67012-EVK-001
- Page 1 5-Channel LED Control Unit for Headlamp Solution Evaluation Board...
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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 5-Channel LED Control Unit for Headlamp Solution Evaluation Board This User's Guide describes the steps necessary to operate the ROHM Solution Evaluation Board for Head Lamps. It includes information on the LED Dr, microcontroller, and other products, as well as operating instructions and application data.
- Page 4 Continuous Average LED Current * *Note : Tj max for BD18397 and BD18398 is 150°C. To avoid exceeding this temperature, ensure heat dissipation by the PCB board or by the shield case. © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 2/12...
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Page 5: Operating Procedure
・Sample Software Documentation ・Demo Source Code (C Language) ・Microcontroller Device Information File Evaluation board Figure 2.Parts Placement (TOP View) Figure 3. Parts Placement (Bottom View) © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 3/12 January 2025... - Page 6 REF67012-EVK-001 User’s Guide Evaluation board Connections example Figure 4. Evaluation board Connections example © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 4/12 January 2025...
- Page 7 ※ When the SW button is pressed “ LONG “ ： Return to No.1 in any state. In the demo code, the reset of the state is performed by fully discharging the power supply (J1 terminal). © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001...
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Page 8: Evaluation Board Schematic
REF67012-EVK-001 User’s Guide Evaluation board schematic © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 6/12 January 2025... - Page 9 REF67012-EVK-001 User’s Guide © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 7/12 January 2025...
- Page 10 REF67012-EVK-001 User’s Guide Figure 5. Evaluation board schematic © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 8/12 January 2025...
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Page 11: Parts List
BEAD2, BEAD3 Crystal 8MHz CSTNE8M00G52A000R0 2X1/Board to board connector 2182160220 J1, J2, J3, J4, J5, J6 5X2 2.54mm/ Pin header Connector 8X2 1.27mm/ Pin header P2,P5,P8 5X2 1.27mm/ Pin header © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 9/12 January 2025... -
Page 12: Board Layout
Figure 8. Mid2 layer layout (Top view) (Top view) (Top view) Figure 11. Bottom layer layout Figure 9. Mid3 layer layout Figure 10. Mid4 layer layout (Top view) (Top view) (Top view) © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 10/12 January 2025... - Page 13 This recommended layout meets the EMC standard CISPR25 Class 5 with Shield case. Figure 12. Radiated noise (CISPR25 Class5) Reference Efficiency data for BD18354 +BD18398 Vout=30V, Io=3A(BD18398/Combine the 3 output channels) Ta=Room temp., Figure 13. Efficiency © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 11/12 January 2025...
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Page 14: Revision History
REF67012-EVK-001 User’s Guide Revision history Revision Date Description number 21. Jan. 2025 Initial release © 2025 ROHM Co., Ltd. No. 67UG120E Rev.001 12/12 January 2025... - Page 15 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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