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UC3543M

電源監(jiān)控電路; ? Includes Over-Voltage, Under-Voltage, and Current Sensing Circuits\n? Internal 1% AccurateReference\n? Programmable Time Delays\n? SCR \"Crowbar\" Drive of 300 mA\n? Remote Activation Capability\n? Optional Over-Voltage Latch\n? Uncommitted Comparator Inputs for Low Voltage Sensing (UC1544 Series Only);

The monolithic integrated circuits contain all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR \"crowbar\" shutdown; an undervoltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this device, together with an independent, accurate reference generator.\nBoth over- and under-voltage sensing circuits can be externally programmed for minimum time duration of fault before triggering. All functions contain open collector outputs which can be used independently or wire-or?ed together, and although the SCR trigger is directly connected only to the over-voltage sensing circuit, it may be optionally activated by any of the other outputs, or from an external signal. The O.V. circuit also includes an optional latch and external reset capability.\n The UC1544/2544/3544 devices have the added versatility of completely uncommitted inputs to the voltage sensing comparators so that levels less than 2.5 V may be monitored by dividing down the internal reference voltage. The current sense circuit may be used with external compensation as a linear amplifier or as a highgain comparator. Although nominally set for zero input offset, a fixed threshold may be added with an external resistor. Instead of current limiting, this circuit may also be used as an additional voltage monitor.\n The reference generator circuit is internally trimmed to eliminate the need for external potentiometers and the entire circuit may be powered directly from either the output being monitored or from a separate bias voltage.\n \n

UC3543M

Power Supply Supervisory Circuit

3543

PrecisionPotentiometer

3543

CustomerSpecification

Construction 1)Component130X1COND a)Conductor24(19/36)AWGTC0.025 b)Insulation0.010Wall,Nom.PVC0.045 (1)Color(s) CondColorCondColorCondColor 1BROWN11BROWN21BROWN 2RED12RED22RED 3ORANGE13ORANGE23ORANGE 4YELLOW14YELLOW24YELLOW 5GREEN15GREEN

3543S-L

PrecisionPotentiometer

ADC3543

ADC354x14-bit,10-MSPSto65-MSPS,Low-noise,Ultra-lowPowerADC

1Features ?14-bit10/25/65MSPSADC ?Noisefloor:–155dBFS/Hz ?Ultra-lowpowerwithoptimizedpowerscaling: 35mW(10MSPS)to84mW(65MSPS) ?Latency:1clockcycle ?INL:±0.6LSB;DNL:±0.1LSB ?Reference:externalorinternal ?InputBandwidth:900MHz(3-dB) ?Industrialtem

ADC3543

ADC354x14-bit,10-MSPSto65-MSPS,Low-noise,Ultra-lowPowerADC

1Features ?14-bit10/25/65MSPSADC ?Noisefloor:–155dBFS/Hz ?Ultra-lowpowerwithoptimizedpowerscaling: 35mW(10MSPS)to84mW(65MSPS) ?Latency:1clockcycle ?INL:±0.6LSB;DNL:±0.1LSB ?Reference:externalorinternal ?InputBandwidth:900MHz(3-dB) ?Industrialtem

ADC3543

ADC354x14-bit,10-MSPSto65-MSPS,Low-noise,Ultra-lowPowerADC

ADC3543

ADC354414-bit,125-MSPS,LowNoise,LowPowerADC

1Features ?14-bit125MSPSADC ?Noisefloor:–153dBFS/Hz ?Ultra-lowpowerwithoptimizedpowerscaling: 97mW/ch(125MSPS) ?Latency:1clockcycle ?INL:±1.5LSB;DNL:±0.5LSB ?Reference:externalorinternal ?Industrialtemperaturerange:–40°Cto+105°C ?On-chipdigitalfilt

ADC3543IRSBR

ADC354x14-bit,10-MSPSto65-MSPS,Low-noise,Ultra-lowPowerADC

1Features ?14-bit10/25/65MSPSADC ?Noisefloor:–155dBFS/Hz ?Ultra-lowpowerwithoptimizedpowerscaling: 35mW(10MSPS)to84mW(65MSPS) ?Latency:1clockcycle ?INL:±0.6LSB;DNL:±0.1LSB ?Reference:externalorinternal ?InputBandwidth:900MHz(3-dB) ?Industrialtem