BD9G500EFJ-LA
7V to 76V Input, 5A Integrated High-Side MOSFET, Single Buck DC/DC Converter

This is the product guarantees long time support in industrial market. BD9G500EFJ-LA is buck DC/DC converter with built-in low on-resistance High-Side power MOSFET. It is capable of providing current of up to 5A. Current mode architecture provides fast transient response and simple phase compensation setup. The operating frequency is adjustable from 100kHz to 650kHz.

Product Detail

 
Part Number | BD9G500EFJ-LAE2
Status | Recommended
Package | HTSOP-J8
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Industrial

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Non-synchronous

Vin1(Min.)[V]

7.0

Vin1(Max.)[V]

76.0

Vout1(Min.)[V]

1.0

Vout1(Max.)[V]

68.4

Iout1(Max.)[A]

5.0

SW frequency(Max.)[MHz]

0.65

Light Load mode

No

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Features:

  • Long Time Support Product for Industrial Applications.
  • Wide Input Voltage Range
  • Integrated High-Side MOSFET
  • Current Mode Control
  • Adjustable Frequency
  • Soft Start Function
  • Over Current Protection (OCP)
  • Under Voltage Lockout (UVLO)
  • Thermal Shutdown Protection (TSD)
  • Over Voltage Protection (OVP)
  • HTSOP-J8 package

Evaluation
Board

 
    • Evaluation Board
    • BD9G500EFJ-EVK-001
    • 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.

  • User's Guide Buy

Design Resources

 

Documents

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs

User's Guide

  • Evaluation Board User's Guide for BD9G500EFJ-EVK-001

Technical Articles

Schematic Design & Verification

  • Calculation of Power Dissipation in Switching Circuit
  • Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
  • Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
  • Method for Monitoring Switching Waveform
  • PCB Layout Techniques of Buck Converter
  • Phase Compensation Design for Current Mode Buck Converter
  • Method for Determining Constants of
  • Power Supply Sequence Circuit with General Purpose Power Supply IC
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • Diode Selection Method for Asynchronous Converter
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • Usage of SPICE Macromodel for DC/DC
  • Snubber Circuit for Buck Converter IC
  • Efficiency of Buck Converter
  • Calculation of Power Loss (Synchronous)
  • Inductor Calculation for Buck converter IC
  • Considerations for Power Inductors Used for Buck Converters
  • Capacitor Calculation for Buck converter IC
  • The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
  • Resistor Value Table to set Output Voltage of Buck Converter IC
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple

Tools

Simulations (Login Required)

ROHM Solution Simulator is a new web-based electronic circuit simulation tool that can carry out a variety of simulations, from initial development that involves component selection and individual device verification to the system-level verification stage. This makes it possible to quickly and easily implement complete circuit verification of ROHM power devices and ICs, in simulation circuits under close to actual conditions, significantly reducing application development efforts.
  • BD9G500EFJ-LA / Frequency Response

Calculation Tools

This Calculation Sheet supports the application circuit design of switching regulators. The sheet has formulas necessary for determining peripheral parts. You can easily determine the circuit parameters that meet the desired characteristics by setting the values according to the guidance.
  • Calculation-sheet for the circuit theoretical formula - BD9G500EFJ-LA

Models

  • Unencrypted SPICE Model (Inquiry Form)
  • BD9G500EFJ Spice Modeling Report
  • BD9G500EFJ-LA Two-Resistor Thermal Model Report
  • BD9G500EFJ-LA SPICE Model

2D/3D/CAD

  • HTSOP-J8 Footprint / Symbol
  • BD9G500EFJ-LA Footprint / Symbol
  • HTSOP-J8 3D STEP Data

Packaging & Quality

Manufacturing Data

  • Factory Information