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7,5 V bis 15 V, 4 A 1-Kanal-Synchron-Inverswandler - BD95841MUV

BD95841MUV ist ein synchroner Abwärtswandler mit einem Kanal, der Ausgangsspannung (0,8 V bis 5,5 V) im Eingangsspannungsbereich (7,5 V bis 15 V) erzeugen kann. Durch die integrierten N-MOSFET-Leistungstransistoren lässt sich beim platzsparenden Schaltregler eine hohe Effizienz erzielen. Der IC mit H3Reg™-Technologie verfügt über einen ROHM-Steuermodus zur permanenten Einschaltung, der ein schnelles Einschwingen bei Laständerungen ohne externe Kompensationskomponenten ermöglicht. Weiterhin verfügt er über eine feste Soft-Start-Funktion, eine Power-Good-Funktion sowie Kurzschluss- und Überspannungsschutz mit zeitgebundener Sperrfunktion. Der BD95841MUV wurde zur Energieversorgung digitaler AV-Ausrüstung entwickelt.
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* Dieses Produkt entspricht der STANDARD-Güte und wird nicht für Fahrzeugteile empfohlen.
Teilenummer
Status
Gehäuse
Einheitenmenge
Minimale Gehäusemenge
Gehäusetyp
RoHS
BD95841MUV-E2 Active VQFN016V3030 3000 3000 Taping Ja
 
Spezifikationen:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
SW frequency(Max.)[MHz] 0.8
EN Yes
PGOOD Yes
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 100
Eigenschaften:
  • ・Fast Transient Responses due to H3Reg control
    ・Over Current Protection (OCP) – Cycle-by-Cycle
    ・Thermal Shut Down (TSD)
    ・Under-Voltage Lock-Out (UVLO)
    ・Short Circuit Protection (SCP)
    ・Over Voltage Protection (OVP)
    ・Fixed Soft Start (1msec ; typ)
    ・Power Good function
 
 
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Technische Daten
Reference Circuits and Bomlist

Reference Circuits and Bomlist

Evaluation Board User's Guide

Evaluation Board for ROHM's BD95841MUV Synchronous Buck Converter with Integrated 4A MOSFET

Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

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.

PCB Layout Techniques of Buck Converter

Major problems that arise from in appropriate layout may cause increase in noise superposed by output and switching signal, the deterioration of regulator, and also lack of stability...

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

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.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

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.