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Datasheet Linear Technology LT1681

Manufacturer:Linear Technology
Series:LT1681

Dual Transistor Synchronous Forward Controller

Datasheets

  • Download » Datasheet, PDF, 281 Kb
    LT1681 - Dual Transistor Synchronous Forward Controller
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    LT1681
    Dual Transistor
    Synchronous Forward Controller
    DESCRIPTIO
    U FEATURES High Voltage: Operation Up to 72V
    Synchronizable Operating Frequency and Output
    Switch Phase for Multiple Controller Systems
    Fixed Frequency Operation to 350kHz
    Adaptive and Adjustable Blanking
    Synchronous Rectifier Driver
    Local 1% Voltage Reference
    Undervoltage Lockout Protection with Hysteresis
    Input Overvoltage Protection
    Programmable Start Inhibit
    Transformer Primary Saturation Protection
    Optocoupler Feedback Support
    Soft-Start Control ■
    ■ ■




    ■ ...

Eco Plan

 LT1681ESW#PBFLT1681ESW#TRPBFLT1681ISW#PBFLT1681ISW#TRPBF
RoHSCompliantCompliantCompliantCompliant

Parametrics

 LT1681ESW#PBFLT1681ESW#TRPBFLT1681ISW#PBFLT1681ISW#TRPBF
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Control, yes/nonononono
FeaturesExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal Synchronization
Frequency, kHz350350350350
Frequency Sync RangeUp to 350kHzUp to 350kHzUp to 350kHzUp to 350kHz
Integrated Inductor, yes/nonononono
Isupply, mA17171717
Monolithic, yes/nonononono
Number of Outputs1111
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A20202020
Polyphase, yes/nonononono
Switch Current, A20202020
Synchronous, yes/noyesyesyesyes
TopologyForwardForwardForwardForward
Vin Max, V72727272
Vin Min, V9999
Vout Max, V64.864.864.864.8
Vout Maximum0.9VIN0.9VIN0.9VIN0.9VIN
Vout Min, V1.251.251.251.25

Packaging

 LT1681ESW#PBFLT1681ESW#TRPBFLT1681ISW#PBFLT1681ISW#TRPBF
PackageSW-20SW-20SW-20SW-20
Package CodeSWSWSWSW

Manufacturer's Classification

Switching Regulator

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