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7,0–35 V 2 A 1-Kanal-Inverswandler - BD9778F

Der flexible-Abwärts-Schaltregler der ROHM ist ein Schaltregler mit integriertem Power MOSFET, der hohem Druck standhält. Die Betriebsfrequenz kann flexibel über einen externen Widerstand konfiguriert werden. Ein breiter Eingangsspannungsbereich (7 V bis 35 V) und Temperaturbereich (-40? Bis 125?) kann durch die Funktion verschiedenen Anwendungen entsprechen. Da außerdem die verbesserte Schutzschaltung wie thermische Abschaltung (TSD), Überstromschutz (OCP) und unter Spannung Aussperrung (UVLO) eingebaut ist, kann die Anwendung geschützt werden und die hohe Zuverlässigkeit des Sets unter verschiedenen Bedingungen erreicht werden.

Teilenummer
Status
Gehäuse
Einheitenmenge
Minimale Gehäusemenge
Gehäusetyp
RoHS
BD9778F-E2 Active SOP8 2500 2500 Taping Ja
 
Spezifikationen:
Grade Automotive
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 7.0
Vin1(Max.)[V] 35.0
Vout1(Min.)[V] 1.0
Vout1(Max.)[V] 35.0
Iout1(Max.)[A] 2.0
SW frequency(Max.)[MHz] 0.5
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
Eigenschaften:
  • ・Wide input voltage range : 7V to 35V
    ・Standby mode supply current : 0microA (Typ.)
    ・Output voltage setting enabled with external resistor : 1V to Vin
    ・Oscillation frequency variable with external resistor : 50 to 500kHz
    ・Built-in P-ch POWER MOSFET
 
 
IN VERBINDUNG STEHENDE PRODUKT
Weitere neue/aktualisierte Produkte im Zusammenhang mit Energieverwaltung / Power Management
TEILENUMMER Produktname Gehäuse Datenblatt Lieferbare Bestände
BD9778HFP 7,0–35 V 2 A 1-Kanal-Inverswandler HRP7   Kaufen
BD9781HFP 7,0–35 V 4 A 1-Kanal-Inverswandler HRP7   Kaufen
Neue Produkte:
 
 
Technische Daten
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.

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.

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...

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.

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.

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.

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.

Considerations for Power Inductors Used for Buck Converters

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