Precision Quad Supply And Line Monitor

The UC1904 Quad Supply Monitor will respond to under- and over-volt- age conditions on up to four continuously monitored voltage levels. Four independent positive voltages CAN be monitored or, alternatively, two of the sense inputs are preset to monitor -5V and -12V supplies. The de- vice also monitors Over-Current and Line Sense inputs, both with preci- sion input thresholds. Four Open Collector outputs on the UC1904 give the following re- sponses: 1. The OV/OC output is a latched over-voltage, or over-current response. 2. A Power Good signal responds low with any fault detection on power-up a programmable delay is used to hold this output low for a system Power On Reset signal. 3. The PWRW output responds only to a Line Sense input, for early warning of power failures. 4. The last open collector, the ON/OFF output, generates a delayed supply OFF control signal in response to an OFF input command, under-voltage condition, or line fault detection. The OV-UV fault window is adjustable with a programming input. The thresholds are centered around the precision 2.5V reference, with a scaled hysteresis for precise, glitch free operation. In the positive mode of operation, the fault windows at each of the sense inputs CAN be inde- pendently scaled using external resistors and the 2.5V reference output. An Auto Restart function couples with the under-voltage and line sens- ing circuits to allow controlled power supply start-up and shutdown. By Texas Instruments
UC1904 's PackagesUC1904 's pdf datasheet
UC2904
UC3904




UC1904 Pinout, Pinouts
UC1904 pinout,Pin out
This is one package pinout of UC1904,If you need more pinouts please download UC1904's pdf datasheet.

UC1904 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

Related Electronics Part Number

Related Keywords:

UC1904 Pb-Free UC1904 Cross Reference UC1904 Schematic UC1904 Distributor
UC1904 Application Notes UC1904 RoHS UC1904 Circuits UC1904 footprint