The AZ70XX series ICs are under Voltage Detectors with AZ78LXX series are three terminal positive Regulators with several fixed output voltages. These Regulators a built in voltage threshold and low power consumption. can provide local onspecifically designed to accurately The AZ70XX are card regulation, eliminating the distributionpower supplies. monitor problems associated with single point regulation. The AZ78LXX can be used in logic systems, instrumentation, AZ70XX use a precision on-chip Voltage Reference The HiFi, and other solid state electronic equipment. When Comparator to measure the input operating replaceand a used as a Zener Diode Resistor combination voltage. ment, the AZ78LXX usually results an effective output These ICs can accurately reset the system after detecting impedance the time of switchingorders ofon and instantavoltage at improvement of two power magnitude, and lower quiescent current. neous power off in various CPU systems and other logic systems. The detect voltage thresholds are 2.3V 2.5V With adequate heat sinking the AZ78LXX can deliver 100 2.7V 2.9V 3.1V 3.3V/4.2V/4.5V for AZ7023 25/27/29/ mA output current. Current limiting is included to limit 31/33/42/45 respectively. Built in hysteresis helps to prethe peak output current to a safe value. Thermal protection vent erratic operation in the presence of noise. is also provided. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown Features circuit takes over preventing the IC from overheating. The Low Current Consumption: ? AZ78LXX are available in the plastic TO-92 (bulk or ammoCCL=300uASOIC-8, SOT-223 and SOT-89 packages. I packing), Typical ICCH=30uA Typical ? Low Minimum Operating Voltage for Output ResetFeatures Typical ting: 0.8V ?E78A's datasheet is the same as AZ78L05
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