BD7F100HFN-LB
无需光电耦合器的绝缘型FLYBACK转换器

本产品是面向工业设备市场的产品,保证可长期稳定供货。是适合这些用途的产品。本产品是无需光电耦合器的绝缘型FLYBACK转换器为获得通过变压器绝缘的稳定的输出电压,无需以往用途中所需的光电耦合器、变压器3次绕组构成的反馈电路,大幅度减少了部件个数,可实现小型、高可靠绝缘型电源应用。采用独创的适应型导通时间控制技术,不需要以往方式中所需的外接相位补偿部件,可实现简单、高性能的绝缘型电源应用。

主要规格

 
型号 | BD7F100HFN-LBTR
Status | 推荐品
封装 | HSON8
包装形态 | Taping
包装数量 | 3000
最小独立包装数量 | 3000
RoHS | Yes

特性:

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

Vin1(Max.)[V]

40

SW frequency (Max.)[kHz]

400

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]

2.9x3 (t=0.6)

Find Similar

特点:

  • 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)

产品概要

 

产品概要

HSON8BD7Fx00HFN-LB HTSOP-J8BD7Fx00EFJ-LB

为稳定隔离电源的输出电压,一般采取使用寿命有限的光电耦合器、辅助绕组等元器件的方式。
此次ROHM推出无需这些反馈电路的隔离反激式DC/DC转换器。
能轻松构成隔离电源,适用于大功率逆变器、蓄电系统、FA设备等工业设备电源。

购买样品/评估板

评估板BD7F100HFN-EVK-001

不仅BD7F100xxx-LB/BD7F200xxx-LB系列,搭载BD7F100HFN-LB的评估板 "BD7F100HFN-EVK-001" 也开始在网上销售。
能轻松评估输入电压24V、输出电压5V、输出电流800mA的隔离电源。

评估板阵容

Type Part No. Image IC Board size
X/Y [mm]
Vin [V] Vout
[V]
Iout
[A]
User's
Guide
Distribution
Inventory
Isolated Flyback DCDC Converter BD7F100EFJ-EVK-001 BD7F100EFJ-EVK-001 BD7F100EFJ-LB 70 / 50 24 5 1.0 User's
Guide
Check
Isolated Flyback DCDC Converter BD7F100EFJ-EVK-002 BD7F100EFJ-EVK-002 BD7F100EFJ-LB 70 / 50 24 +15/-15 0.165 User's
Guide
Check
Isolated Flyback DCDC Converter BD7F100EFJ-EVK-003 BD7F100EFJ-EVK-003 BD7F100EFJ-LB 70 / 50 5 5 0.2 User's
Guide
Check
Isolated Flyback DCDC Converter BD7F100HFN-EVK-002 BD7F100HFN-EVK-002 BD7F100HFN-LB 70 / 50 24 5 1.0 User's
Guide
Check
Isolated Flyback DCDC Converter BD7F100HFN-EVK-003 BD7F100HFN-EVK-003 BD7F100HFN-LB 70 / 50 24 +15/-15 0.165 User's
Guide
Check
Isolated Flyback DCDC Converter BD7F100HFN-EVK-004 BD7F100HFN-EVK-004 BD7F100HFN-LB 70 / 50 5 5 0.2 User's
Guide
Check
Isolated Buck DCDC Converter BD7F200EFJ-EVK-001 BD7F200EFJ-EVK-001 BD7F200EFJ-LB 90 / 70 24 15 x 4ch 0.150 User's
Guide
Check
Isolated Buck DCDC Converter BD7F200EFJ-EVK-002 BD7F200EFJ-EVK-002 BD7F200EFJ-LB 70 / 50 24 5 2.0 User's
Guide
Check
Isolated Buck DCDC Converter BD7F200HFN-EVK-001 BD7F200HFN-EVK-001 BD7F200HFN-LB 90 / 70 24 15 x 4ch 0.150 User's
Guide
Check
Isolated Buck DCDC Converter BD7F200HFN-EVK-002 BD7F200HFN-EVK-002 BD7F200HFN-LB 70 / 50 24 5 2.0 User's
Guide
Check

产品阵容

型号

封装 输出功率 输入
耐压
输入电压
范围
过流
限制
开关频率 工作温度 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)

特点1:无需光电耦合器&辅助绕组,实现小型化

1次侧施加反馈电路时,为了检测2次侧的电压、电流,以往需要使用光电耦合器、辅助绕组及构成这些电路的元器件。新方式不需要这些电路,不仅能简化设计、而且实现小型化、省电化、高可靠性。用一个电阻即可实现稳定的输出电压。

特点2:采用自适应导通时间控制,改善负载响应特性

以往的隔离电源控制IC存在负载电流瞬间变动时会引起输出电压大变动的问题。
此次,隔离型电源控制IC采用了非隔离型电源控制IC中衍生的自适应导通时间控制。
采用ROHM独有的新控制方式,输出电压变动比一般控制方式降低65%以下,即200mV(负载电流1A、上升时间100μs时),对负载电流瞬间变动具有高响应特性,有助于提高可靠性。

Reference Design / Application Evaluation Kit

 
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