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Datasheet Linear Technology LT8309ES5#TRPBF

Manufacturer:Linear Technology
Series:LT8309
Part Number:LT8309ES5#TRPBF

Secondary-Side Synchronous Rectifier Driver

Datasheets

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    LT8309 - Secondary-Side Synchronous Rectifier Driver
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    LT8309
    Secondary-Side
    Synchronous Rectifier Driver
    Features Description Works with DCM and BCM/CrCM Conduction Mode
    Flyback Topologies
    n V : 4.5V to 40V
    CC
    n Supports Up to 150V MOSFETs
    n 26ns Turn-Off Propagation Delay
    n Accurate Minimum On and Off Timers for Reliable
    Operatio Adjustable and Accurate Trip Point: +5mV to –30mV
    n 1О© Gate Driver Pull-Dow SOT-23 5-Lead Package The LTВ®8309 is a secondary-side synchronous rectifier
    driver that replaces the output rectifier diode in a flyback
    topology. By replacing the diode with a N-channel MOSFET,
    applications are no longer restricted by the heat constraints
    of the output diode. The IC replicates the behavior of a
    diode by sensing the drain-to-source voltage to determine
    when the current becomes negative. The LT8309's low
    minimum on-and off-times help improve noise immunity. n The fast propagation delay of 26ns allows applications to
    operate in discontinuous conduction mode (DCM) and
    critical conduction mode (CrCM). The gate driver features
    a 0.8О© pull-down device for fast turn-offs. The 40V VCC
    rating allows the part to be driven from the output voltage or the rectified drain voltage of the MOSFET. A low ...

Eco Plan

RoHSCompliant

Parametrics

Demo BoardsDC1961A
Design ToolsLTspice File
Export Controlno yes/no
Integrated Inductorno yes/no
Monolithicno yes/no
Number of Outputs1
Operating Temperature Range0 to 85 °C
Polyphaseno yes/no
Synchronousyes yes/no
TopologyFlyback Synchronous Rectifier
Vin Max40 V
Vin Min4.5 V

Packaging

PackageSOT-23
Package CodeS5

Manufacturer's Classification

  • Switching Regulator

Other Names: LT8309ES5TRPBF, LT8309ES5 TRPBF

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