BD7F100EFJ-LB
無需光電耦合器的絕緣型返馳式轉換器

本產品是針對工業裝置市場的產品,保證可長期穩定供貨。是最適合這些用途的產品。本產品是無需光電耦合器的絕緣型返馳式轉換器為獲得通過變​​壓器絕緣的穩定的輸出電壓,無需以往用途中所需的光電耦合器、變壓器3次繞組構成的反饋電路,大幅度減少了部件個數,可實現小型、高可靠絕緣型電源應用。採用獨創的適應型導通時間控制技術,不需要以往方式中所需的外接相位補償部件,可實現簡單、高性能的絕緣型電源應用。

Product Detail

 
料號 | BD7F100EFJ-LBE2
狀態 | 推薦品
封裝 | HTSOP-J8
單位數量 | 2500
最小包裝數量 | 2500
包裝形式 | Taping
RoHS | Yes

規格:

FET

Integrated

Controller Type

PWM

Output Power [W]

1W@Vin=5.0V 5W@Vin=24V

Switch Current Limit(Typ.)[A]

1.25

Vin1(Min.)[V]

3.0

Vin1(Max.)[V]

40.0

SW frequency (Max.)[kHz]

400.0

Channel

1

Light Load mode

Yes

EN

Yes

Soft Start

Yes

Thermal Shut-down

Recovery

Under Voltage Lock Out

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package Size [mm]

4.9x6 (t=1)

功能:

  • Guaranteed long time supply availability for
    Industrial Applications.
  • No need for an optocoupler or a transformer tertiary winding.
    The output voltage can be set by two external
    resistors and the transformer turns ratio.
  • Uses Original Adapted Type ON-Time Control Technology.
    High-speed load response is realized and external
    phase compensation parts are unnecessary.
  • Fixed switching frequency and low output ripple
  • Highly efficient light load mode available (PFM operation)
  • Shutdown / Enable Control
  • Built-in N-Channel MOSFET
  • Soft start function
  • Output load compensation function
  • Protection functions:
    VIN Under Voltage Lock-Out (VIN UVLO)
    Over Current Protection (OCP)
    Thermal Shutdown Protection (TSD)

Supporting Information

 

產品概要

HSON8BD7Fx00HFN-LB HTSOP-J8BD7Fx00EFJ-LB

一般為了穩定絕緣電源的輸出電壓,會使用壽命一定的光耦合器和輔助線圈。
此次,ROHM推出不需要這些反饋電路的絕緣型返馳式DC/DC轉換器產品。
絕緣電源構造簡單,最適合作為功率需求高的變流器、蓄電系統、FA機器等工具機的電源。

購買樣品/評估機板

評估機板「BD7F100HFN-EVK-001」

除了BD7F100xxx-LB/BD7F200xxx-LB系列外, 網路商店亦開始販售配備BD7F100HFN-LB的評估用機板「BD7F100HFN-EVK-001」。
能簡易評估電壓24V 、輸出電壓5V、輸出電流800mA的絕緣電源。
下載評估機板的資料

產品陣容

型號 資料表 封裝運 輸出功率 最大
輸入
電壓
輸入
電壓
範圍
過電流
上限
開關頻率 運作
溫度
功能
BD7F100HFN-LB PDF HSON8
(2.9×3.0×0.6mm)
1W(Vin=5V)
5W(Vin=24V)
45V 3.0~40V 1.25A 400kHz
(Typ.)
-40℃~+125℃ Enable Soft Start Efficient Light
LoadMode UVLO Over Current
Protection Theminal Protection
BD7F100EFJ-LB PDF HSOP-J8
(4.9×6.0×1.0mm)
BD7F200HFN-LB PDF HSON8
(2.9×3.0×0.6mm)
10W(Vin=24V) 8.0~40V 2.75A
BD7F200EFJ-LB PDF HSOP-J8
(49×6.0×1.0mm)

特點1:不需要光耦合器&輔助線圈,體積更小

在輸入端施加反饋後,不再需要傳統上為了檢測2次側電壓‧電流而必須安裝的光耦合器或輔助線圈,以及建構時所必要的零件,除了簡化設計外,還能夠縮小體積、節能、提升可靠度。只要1個電阻,就能夠讓輸出電壓穩定。

特點2:利用adaptive on-time控制,改善負載響應特性

傳統的絕緣型電源控制IC在負載電流瞬間變動上,面臨到輸出電壓大幅度變動的課題。
此次,將應用非絕緣型電源控制IC上已有實際使用經驗的adaptive on-time控制在絕緣型電源控制IC上。
採用ROHM獨家新控制方式,和一般控制方式相比,輸出電壓變動200mV(負載電流1A,上升時間100µs時),降至65%以下,針對負載電流瞬間變動改善了響應特性,進而提升可靠度。

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Evaluation
Board

 
    • Evaluation Board
    • BD7F100EFJ-EVK-001
    • BD7F100EFJ-EVK-001 Evaluation board delivers an output 5 volts from an input 24 volts using BD7F100EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 1A.

  • User's Guide Buy
    • Evaluation Board
    • BD7F100EFJ-EVK-002
    • BD7F100EFJ-EVK-002 Evaluation board delivers outputs 15volts and -15 volts from an input 24 volts using BD7F100EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 0.165A

  • User's Guide Buy
    • Evaluation Board
    • BD7F100EFJ-EVK-003
    • BD7F100EFJ-EVK-003 Evaluation board delivers outputs 5 volts from an input 5 volts using BD7F100EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 1A.

  • User's Guide Buy

Design Resources

 

Documents

User's Guide

  • Evaluation Board User's Guide for BD7F100EFJ-EVK-001 user's guide
  • Evaluation Board User's Guide for BD7F100EFJ-EVK-002 user's guide
  • Evaluation Board User's Guide for BD7F100EFJ-EVK-003 user's guide

Reference Design

  • BD7Fx00xxx-LB Series Reference Circuit

Technical Articles

Schematic Design & Verification

  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Tools

2D/3D/CAD

  • BD7F100EFJ-LB Footprint / Symbol
  • HTSOP-J8 Footprint / Symbol
  • HTSOP-J8 3D STEP Data

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)