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4-18V 2ch Boost / Inverting / Buck converter(controller)_BD9851EFV

BD9851EFV是2ch DC/DC控制器。可支持最大3MHz的开关频率,实现整体应用的省空间化。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD9851EFV-E2 供应中 HTSSOP-B20 2500 2500 Taping Yes
 
特性:
Grade Standard
ch 2
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck / Boost / Inverting
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 4.0
Vin1(Max.)[V] 18.0
Iout1(Max.)[A] 0.2
Vin2(Min.)[V] 4.0
Vin2(Max.)[V] 18.0
SW frequency(Max.)[MHz] 3.0
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
特点:
  • ・内置2ch 用于DC/DC转换器的FET驱动器。
    ・可以切换驱动FET (Pch/Nch)(ch1)。
    ・内置Timer Latch 式短路保护电路(SCP)
    ・内置低电压输入误动作防止电路(UVLO)
    ・内置过热保护电路(TSD)。
    ・可以进行ON/OFF控制(待机时电路电流未达到5μA)。
    ・HTSSOP-B20封装。
 
 
应用:
引脚配置图:
Pin Configration
 
 
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技术信息
Reference Design

Reference Circuits and Bomlist

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.