BD9876EFJ_EVK ROHM Semiconductor, BD9876EFJ_EVK Datasheet

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BD9876EFJ_EVK

Manufacturer Part Number
BD9876EFJ_EVK
Description
Power Management IC Development Tools Evaluation Kit for BD9876 Series
Manufacturer
ROHM Semiconductor
Type
Power Driversr
Datasheet

Specifications of BD9876EFJ_EVK

Rohs
yes
Product
Evaluation Modules
Tool Is For Evaluation Of
BD9876EFJ
Input Voltage
7 V to 45 V
Output Current
3 A
ROHM Switching Regulator Solutions
Evaluation Board:
Step-down Switching Regulator
With Built-in Power MOSFET
●Introduction
●Description
●Applications
●Evaluation Board Operating Limits and Absolute Maximum Ratings
●Evaluation Board
BD9673EFJ / BD9876EFJ (5V | 1.5A / 3.0A Output)
Parameter
Supply Voltage
Output Voltage / Current
This application note will provide the steps necessary to operate and evaluate ROHM’s step-down switching regulator using the
BD9673EFJ/BD9876EFJ evaluation boards. Component selection, board layout recommendations, operation procedures and application
data is provided.
This evaluation board has been developed for ROHM’s step-down switching regulator customers evaluating BD9673EFJ and/or
BD9876EFJ. While accepting a wide power supply of 7-42V, a step down output of 1.2V/1.8V/3.3V/5V or any other user defined voltage can
be produced. The ICs have an internal 200mohm Nch MOSFET (3.5A max) and a synchronization frequency range of 200 kHz to 500 kHz.
A Soft Start circuit prevents in-rush current during startup along with UVLO (low voltage error prevention circuit) and TSD (thermal shutdown
detection) protection circuits. An EN pin allows for simple ON/OFF control of the IC to reduce standby current consumption.
For general devices that have 12V/24V lines
Below is the evaluation board with the BD9673EFJ. BD9876EFJ eval board uses the same components and board layout
BD9673EFJ Eval Board
BD9673EFJ
BD9876EFJ
BD9673EFJ
BD9876EFJ
BD9673EFJ
BD9876EFJ
Vout
GND
Symbol
VOUT
VOUT
IOUT
IOUT
VCC
VCC
MIN
1*
1*
7
7
-
-
GND
Vcc
Limit
TYP
-
-
-
-
-
-
VCCx0.7
VCCx0.7
MAX
1.5
45
45
3
BD9876EFJ Eval Board
Unit
V
V
V
V
A
A
*Restricted by minimum on pulse
*Restricted by minimum on pulse
Conditions
typ. 200ns
typ. 200ns
No.0000000013
1

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BD9876EFJ_EVK Summary of contents

Page 1

ROHM Switching Regulator Solutions Evaluation Board: Step-down Switching Regulator With Built-in Power MOSFET BD9673EFJ / BD9876EFJ (5V | 1.5A / 3.0A Output) ●Introduction This application note will provide the steps necessary to operate and evaluate ROHM’s step-down switching regulator using ...

Page 2

Board Schematic Below is the evaluation board schematic for BD9673EFJ. BD9876EFJ eval board uses the same schematic ●Evaluation Board I/O Below is the reference application circuit that shows the inputs (Vcc, EN and Sync) and the output (Vout) ●Evaluation ...

Page 3

Graphs Application Data for BD9673EFJ Below graphs show efficiency, frequency response and load characteristics of the BD9673EFJ eval board. Application Note Page ...

Page 4

Graphs Application Data for BD9876EFJ Below graphs show efficiency, frequency response and load characteristics of the BD9876EFJ eval board. Application Note Page ...

Page 5

Board Layout Guidelines Below are the guidelines that have been followed and recommended for BD9673 and BD9876 designs Figure 1 Application Note Page ...

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Page 9

... Either BD9673EFJ or BD9876EFJ will be used. Please check IC label on backside of PCB. Manufacturer Part Number Murata GRM32ER61C476ME15L TDK Corporation C1608C0G1E682J TDK Corporation C1608X7R1E103M TDK Corporation C3225Y5V1H106Z AVX Corporation 06035C104KAT2A ROHM Semiconductor RB056L-40TE25 Signal Transformers SCRH105RY-150 ROHM Semiconductor MCR10EZPJ124 ROHM Semiconductor MCR10EZPJ303 ROHM Semiconductor MCR03EZPJ103 ROHM Semiconductor MCR10EZPJ472 Application Note Page ...

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Application Note Page ...

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