A4810B

AiT Semiconductor Inc. www.ait-ic.com A4810A/B HIGH PRECISION BUILT-IN DELAY CIRCUIT FULL TEMP RANGE, ULTRA-LOW VOLTAGE DETECTOR DESCRIPTION FEATURES The A4810A/B microprocessor supervisory circuit can be used to monitor the power supplies in microprocessor and digital systems. It provides a reset to the microprocessor during power-up, power-down, and brown-out conditions.   The function of the A4810A/B is to monitor the VDD supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 250ms after VDD rises above the threshold. The A4810A/B has an active-low /RESET output.      Precise monitoring of 2.7V, 3.0V, 3.3V and 5.0V supplies 140 ms min. Power-On Reset pulse width, 250ms typical, has an active-low /RESET Output Guaranteed /RESET Output valid for VDD≥1.1V Low Supply Current, 2μA Typ. No external components needed Specified over full temperature range A4810A: -40°C to +85°C, A4810B: -40°C to +105°C Available in SOT-23 package With a low supply current of only 2μA (Typ.), the A4810A/B are ideal for use in portable equipment. APPLICATION A4810A/B is available in SOT-23 package.  Microprocessor Systems  Computers ORDERING INFORMATION  Controllers  Intelligent Instruments Package Type Part Number A4810AE3R-XXXDZ SOT-23 A4810AE3VR-XXXDZ E3 A4810BE3R-XXXDZ A4810BE3VR-XXXDZ XXX: Detector Voltage 263 = 2.63V ; 293 =2.93V Note D: Delay Time 250ms Z:...