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6 V bis 20 V, 1 A 1-Kanal PWM- Inverswandler Integrierter FET - BD9227F

Der BD9227F ist ein nicht synchroner 20 V, 1 A über PWM-Tastverhältnis gesteuerter Abwärtsregler mit integriertem High-side 20 V Leistungs-MOSFET. Die Betriebsfrequenz beträgt 1,0 MHz, festgelegt vom inneren Schaltkreis. Die Strommodus-Steuerung mit interner Schleifenkompensation vereinfacht die externe Kompensationsberechnung. Sie reduziert die Anzahl der Komponenten und ermöglicht zugleich die Verwendung keramischer Ausgangskondensatoren. Es sind zusätzliche Schutzfunktionen vorhanden wie Überstromschutz, thermische Abschaltung und Unterspannungssperre. Die Unterspannungssperre und Hysterese können von einem externen Widerstand festgelegt werden. The BD9227F ist im SOP 8 erhältlich.

* Dieses Produkt entspricht der STANDARD-Güte und wird nicht für Fahrzeugteile empfohlen.
Teilenummer
Status
Gehäuse
Einheitenmenge
Minimale Gehäusemenge
Gehäusetyp
RoHS
BD9227F-E2 Active SOP8 2500 2500 Taping Ja
 
Spezifikationen:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 6.0
Vin1(Max.)[V] 20.0
Vout1(Min.)[V] 1.512
Vout1(Max.)[V] 20.0
Iout1(Max.)[A] 1.0
SW frequency(Max.)[MHz] 1.0
Light Load mode No
EN No
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Eigenschaften:
    • Wide Operating Input Range 6V to 20V
    • 20V/200mΩ Internal Power MOSFET
    • 1.0MHz Fixed Operating Frequency
    • Current Mode
    • Over Current Hiccup Period Protection
    • Under Voltage Locked Out (UVLO), Over Voltage Protection (OVP), Thermal Shut Down (TSD)
    • Available in SOP8 Package.
 
 
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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.