MOUSER ELECTRONICS BD9G500EFJ-EVK-001 ROHM Semiconductor User Guide

MOUSER ELECTRONICS BD9G500EFJ-EVK-001 ROHM Semiconductor

To ensure safe operation, please carefully read all precautions before handling the evaluation board

Potentially lethal voltages may be generated.

Therefore, please make sure to read and observe all safety precautions described in the red box below.

Before Use

1.  Verify that the parts/components are not damaged or missing (i.e. due to the drops).
2. Check that there are no conductive foreign objects on the board.
3. Be careful when performing soldering on the module and/or evaluation board to ensure that solder splash does not occur.
4.  Check that there is no condensation or water droplets on the circuit board.

During Use

1. Be careful to not allow conductive objects to come into contact with the board.
2. Brief accidental contact or even bringing your hand close to the board may result in discharge and lead to severe injury or death.
3. Therefore, DO NOT touch the board with your bare hands or bring them too close to the board. In addition, as mentioned above please exercise extreme caution when using conductive tools such as tweezers and screwdrivers.
4.  If used under conditions beyond its rated voltage, it may cause defects such as short-circuit or, depending on the circumstances, explosion or other permanent damages.

After Use

1. Be sure to wear insulated gloves when handling is required during operation.
2. 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.
3. Protect against electric shocks by wearing insulated gloves when handling.

This evaluation board is intended for use only in research and development facilities and should by handled only by qualified personnel familiar with all safety and operating procedures. We recommend carrying out operation in a safe environment that includes the use of high voltage signage at all entrances, safety interlocks, and protective glasses.

Introduction

This user’s guide describes the steps required to operate the EVK of BD9G500EFJ-LA. This document includes a description of peripheral components, operating instructions, and reference data.

Description

BD9G500EFJ-EVK-001 uses BD9G500EFJ-LA to output 5V from a 48V input voltage. The input voltage of the BD9G500EFJ-LA is from 7V to 76V and the output voltage is configurable from 1V to 0.97 x VIN V with external resistors. The operating frequency is configurable between 100 kHz and 650 kHz with an external resistor connected to RT pin. This is a current mode control DC/DC converter that provides fast transient response performance and simple phase compensation setup. Built-in functions include variable soft start function which prevents inrush current at startup, UVLO (Under Voltage Lock Out), TSD (Thermal Shutdown Detection), OVP (Over Voltage Protection), OCP (Over Current Protection) and OVDIS (Over Voltage Discharge).

Application

• Industrial Equipment
• Power Supply for FA
• Communication Equipment
• Battery Management System (BMS)

EVK Operating Limits

BD9G500EFJ-EVK-001

EVK Overview

EVK Schematic

Operating Procedure

1. Turn off the DC power supply power switch and connect the power supply’s GND terminal to the GND_F pin of the EVK.
2. Connect the positive terminal of the DC power supply to the VIN_F pin of the EVK.
3. Connect the load across the VOUT_F pin and the GND_F pin of the EVK. In the case of an electronic load, turn the load off.
4. Connect the voltmeter’s positive terminal to the EVK’s VOUT_S pin and the GND terminal to the EVK’s GND_S pin.
5. Tilt the switch of SW_EN to the VIN side.
6. Turn on the DC power supply. Make sure that the voltmeter reading is 5V.
7. Turn on the electronic load. (Caution) This EVK does not support hot plug. Do not perform hot plug test.

Operating State Settings

Select the status of BD9G500EFJ-LA as shown in Table 1 according to the EN pin voltage.

Parts List

Count

|

Parts No.

|

Type

|

Value

|

Description

| Manufacturer Part Number|

Manufacturer

| Configuration mm (inch)
---|---|---|---|---|---|---|---
1| U1| IC| –| Single BUCK

Converter

| BD9G500EFJ-LA| ROHM| 4.9 mm x

6.0 mm

1| L1| Inductor| 33µH| 5.5A, ±20%| 7443551331| WE| 13 mm x

13 mm

1

|

D1

| Schottky

Barrier Diode

|

–

| VR=100V IO=10A|

RB088BM100

|

ROHM

| 6.6 mm x 10 mm
0| C1| Ceramic

Capacitor

| No mount| N/A| N/A| N/A| 1005 (0402)
1| C2| Ceramic

Capacitor

| 6800pF| 50V, C0G, ±5%| GRM1555C1H682JE01| Murata| 1005 (0402)
1| C3| Ceramic

Capacitor

| 1μF| 10V, X5R, ±20%| GRM153R61A105ME95| Murata| 1005 (0402)
1| C4| Ceramic

Capacitor

| 10μF| 100V, X7S, ±10%| GRM32EC72A106KE05| Murata| 3225 (1210)
1| C5| Ceramic

Capacitor

| 10μF| 100V, X7S, ±10%| GRM32EC72A106KE05| Murata| 3225 (1210)
1| C6| Ceramic

Capacitor

| 1μF| 100V, X7S, ±10%| GRM21BC72A105KE01| Murata| 2012 (0805)

1

|

C7

| Aluminum Electrolytic

Capacitor

|

220μF

|

50V, ±20%

|

UBT1H221MPD8

|

Nichicon

|

Φ10 mm

1| C8| Ceramic

Capacitor

| 47μF| 10V, X6S, ±10%| GRM32EC81A476KE19| Murata| 3225 (1210)
0| C9| Ceramic

Capacitor

| No mount| N/A| N/A| N/A| 1005 (0402)
0| CS| Ceramic

Capacitor

| No mount| N/A| N/A| N/A| 1005 (0402)
1| R1| Resistor| 62kΩ| 50V, ±1%, 1/16W| MCR01MZPF6202| ROHM| 1005 (0402)
1| R2| Resistor| 0.75kΩ| 50V, ±1%, 1/16W| MCR01MZPF7500| ROHM| 1005 (0402)
1| R3| Resistor| 3kΩ| 50V, ±1%, 1/16W| MCR01MZPF3001| ROHM| 1005 (0402)
1| R4| Resistor| 47kΩ| 50V, ±1%, 1/16W| MCR01MZPF4702| ROHM| 1005 (0402)
1| R5| Resistor| 0Ω| Jumper| MCR01MZPJ000| ROHM| 1005 (0402)
1| R6| Resistor| 0Ω| Jumper| MCR01MZPJ000| ROHM| 1005 (0402)
0| RS| Resistor| No mount| N/A| N/A| N/A| 1005 (0402)

1

|

SW_EN

| Miniature Toggle

Switch

|

–

|

–

|

BT1E-2M4-Z

|

NIDEC COPAL

| 7.6 mm x

12.7 mm

9

| VIN_F, VIN_S, VOUT_F, VOUT_S, GND_F, GND_S,

EN

|

Test Pin

|

–

|

–

|

ST-2-2

|

MAC8

|

Φ2.5 mm

EVK PCB Layout

1oz (35μm) *Middle Layers

Reference Application Curves

Reference Application Curves – Cont’d

Revision History

Date| Revision

Number

| Description
---|---|---
2021. 3. 3| 001| Initial release

Notes

1. The information contained herein is subject to change without notice.
2. Before you use our Products, please contact our sales representative and verify the latest specifica-tions :
3. Although ROHM is continuously working to improve product reliability and quality, semicon-ductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM.
4. Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production.
5. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information.
6. The Products specified in this document are not designed to be radiation tolerant.
7. For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems.
8. Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters.
9. ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein.
10. ROHM has used reasonable care to ensure the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information.
11. Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations.
12. When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.
13. This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM.

Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us. ROHM Customer Support System https://www.rohm.com/contact/

References

• ローム株式会社 - ROHM Semiconductor
• contactus

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