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2022-09-21 17:24:28
UC3903 Standard Four Road Power Supply and Circuit Monitor
Features
Inputs used to monitor up to four independent power supply voltage levels
internal inverters used to inductive negative power supply voltage
Use with use. Input the line/switch sensing input in the early power failure warning
The proportion of programmable arrears and overvoltage fault threshold
accuracy 2.5V benchmark
Auxiliary universal operation Amplifier
Three large currents, gt; 30mA, open circuit set output indicator overvoltage, under pressure, and normal power supply
Input power supply pressure sensing and start lock
] Eliminate the error failure alert during the startup
8-40V power operation 7mA spare current
Fragics description
UC1903 series four roads The power supply and circuit monitor integrated circuit will respond to the upper voltage levels of up to four continuous monitoring voltage levels. The internal op amp inverter allows at least one in these levels. The separate line/switch detection input can be used to provide an early warning that can provide a line or other power failure.
The fault window adjustment circuit on these devices provides simple under voltage and overvoltage threshold programming. The threshold centered on the 2.5V accuracy benchmark has input hysteresis. The lag is zoomed in with the width of the window to achieve accurate and faultless operations. Refer to the output tube foot allows the use of simple resistance division independent zoom sensing input fault windows.
When activated, the three -way set of circuit collecting electrode output on these devices will absorb more than 30mA load current. The discharge voltage and overvoltage output are delayed after the user -defined separate failure conditions. The third output is activated under any failure conditions, including under pressure and overvoltage, line/switching equipment failure and input power arrears. The shutdown status of this output indicates normal power ".
It also includes an additional