ZHT2431 Datasheet | Unknown Manufacturer

HIGH TEMPERATURE ADJUSTABLE PRECISION ZENER SHUNT REGULATOR ISSUE 1 JULY 1997 DEVICE DESCRIPTION The ZHT2431 is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 25m A. The output voltage may be set to any chosen voltage between 1.24 and 15 volts by selection of two external divider resistors. The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The ZHT2431 is particularly used in the feedback control loop of switch mode power supplies. In this application the device 1.24 volt reference enables the generation of low voltage supplies, typically 3.3 volts or 3 volts. The ZHT2431 is intended for use over the extended operating range of -55°C to 125°C. Features - - - - - - - - - - - - - - Surface mount SOT23 package TO92 package 2.5% tolerance Average temperature coefficient 50 ppm/°C Temperature pensated for operation over the full temperature range Programmable output voltage 100µA to 25m A current sink capability Low output noise -55° to 125° C operation APPLICATIONS Shunt regulator Series regulator Voltage monitor Over voltage/ under voltage protection Switch mode power supplies SCHEMATIC DIAGRAM Vref Gnd Cathode Voltage (VZ) 15V Cathode Current 50m A Operating Temperature -55 to 125°C Storage Temperature -55 to 125°C Remended Operating Conditions Cathode Voltage (min)VREF to (max) 15V Cathode Current (min) 100µA to (max) 25m...