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SG2549Y

High Reliability Supervisory Circuits and Voltage References;

This monolithic integrated circuit is an analog latch device with digital reset.? It was specifically designed to provide pulse-by-pulse current limiting for switch-mode power supply systems, but many other applications are also feasible.? Its function is to provide a latching switch action upon sensing an input threshold voltage, with reset accomplished by an external clock signal.? This device can be interfaced directly with many kinds of pulse width modulating control IC's, including the SG1524, SG1525A, and SG1527A.The input threshold for the latch circuit is 100mV, which can be referenced either to ground or to a wide-ranging positive voltage.? There are high and low-going output signals available, and both the supply voltage and clock signal can be taken directly from an associated PWM control chip.With delays in the range of 200 nanoseconds, this latch circuit is ideal for fast reaction sensing to provide overall current limiting, short circuit protection, or transformer saturation control.

SG2549Y

CURRENT SENSE LATCH

SG2549Y

CURRENT SENSE LATCH

TA2549A

SAWFilter1234.4MHzSMD1.4?1.1mm(BW=45MHz)

TDA2549

I.F.amplifieranddemodulatorformultistandardTVreceivers

GENERALDESCRIPTION TheTDA2549isacompletei.f.circuitwitha.f.c.,a.g.c.,demodulationandvideopreamplificationfacilitiesformultistandardtelevisionreceivers.Itiscapableofhandlingpositivelyandnegativelymodulatedvideosignalsinbothcolourandblack/whitereceivers. F

ETC

TPS2549

USBChargingPortControllerandPowerSwitchWithCableCompensation

TPS2549RTER

USBChargingPortControllerandPowerSwitchWithCableCompensation

TPS2549RTET

USBChargingPortControllerandPowerSwitchWithCableCompensation

TZ2549A

HC49US6MHzCrystalUnit

Features: SurfaceMountSeamWeldPackage GoodFrequencyPerturbationandStabilityovertemperature DescriptionandApplications: HC49UScrystalunitforuseinwirelesstelecommunicationsdevices

UDN2549

PROTECTEDQUADPOWERDRIVER

Providingimprovedoutputcurrentlimiting,theUDK/UDN/UDQ2549BandUDK/UDN/UDQ2549EBquadpowerdriverscombineANDlogicgatesandhigh-currentbipolaroutputswithcompleteoutputprotection.Eachofthefouroutputswillsink600mAintheonstate.Theoutputshaveaminimumbreakdownvoltag