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Datasheet Linear Technology LT1952-1

Manufacturer:Linear Technology
Series:LT1952-1

Single Switch Synchronous Forward Controller

Datasheets

  • Download » Datasheet, PDF, 371 Kb, Revision: E
    LT1952/LT1952-1 - Single Switch Synchronous Forward Controller
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    LT1952/LT1952-1
    Single Switch Synchronous
    Forward Controller
    DESCRIPTION FEATURES n n n n n n n n n n n n n n n Synchronous Rectifier Control for High Efficiency
    Programmable Volt-Second Clamp
    Output Power Levels from 25W to 500W
    Low Current Start-Up
    (LT1952: 460ВµA; VIN On/Off = 14.25V/8.75V)
    (LT1952-1: 400ВµA; VIN On/Off = 7.75V/6.5V)
    True PWM Soft-Start
    Low Stress Short-Circuit Protection
    Precision 107mV Current Limit Threshold
    Adjustable Delay for Synchronous Timing
    Accurate Shutdown Threshold with Programmable
    Hysteresis
    Programmable Slope Compensation
    Programmable Leading Edge Blanking
    Programmable Frequency (100kHz to 500kHz)
    Synchronizable to an External Clock up to 1.5 fOSC
    Internal 1.23V Reference
    2.5V External Reference
    Current Mode Control
    Small 16-Pin SSOP Package The LTВ®1952/LT1952-1 are current mode PWM controllers ...

Prices

Packaging

 LT1952EGN-1#PBFLT1952EGN-1#TRPBFLT1952IGN-1#PBFLT1952IGN-1#TRPBFLT1952MPGN-1#PBFLT1952MPGN-1#TRPBF
PackageSSOP-16SSOP-16SSOP-16SSOP-16SSOP-16SSOP-16
Package CodeGNGNGNGNGNGN

Parametrics

 LT1952EGN-1#PBFLT1952EGN-1#TRPBFLT1952IGN-1#PBFLT1952IGN-1#TRPBFLT1952MPGN-1#PBFLT1952MPGN-1#TRPBF
Demo BoardsDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-HDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-HDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-HDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-HDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-HDC1317A-A,DC1317A-B,DC1317A-C,DC1317A-E,DC1317A-F,DC759A,DC830A,DC968A-A,DC968A-B,DC968A-C,DC968A-D,DC1317A-G,DC1317A-D,DC1317A-H
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Control, yes/nonononononono
FeaturesResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External Synchronization
Frequency, kHz500500500500500500
Frequency Adjust Range100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz
Frequency Sync Range100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz
Integrated Inductor, yes/nonononononono
Ishutdown, ВµA240240240240240240
Isupply, mA5.25.25.25.25.25.2
Monolithic, yes/nonononononono
Number of Outputs111111
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85-55 to 125-55 to 125
Polyphase, yes/nonononononono
Switch Current, A101010101010
Synchronous, yes/noyesyesyesyesyesyes
TopologyForward, FlybackForward, FlybackForward, FlybackForward, FlybackForward, FlybackForward, Flyback
Vin Max, V252525252525
Vin Min, V8.38.38.38.38.38.3

Eco Plan

Manufacturer's Classification

  • Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

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