HomedatasheetADM809LARTZ

ADM809LARTZ Datasheet

Supervisory Circuits
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Description

The supervisory circuit of the ADM809LARTZ monitors the power supply voltage in microprocessor systems. It provides a reset output during power-up, power-down, and brownout conditions. On power-up, an internal timer holds reset asserted for 55 ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1 V. The ADM809-5L/ADM809-5S provide an active low reset signal (RESET). The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC. The ADM809-5L/ADM809-5S consume only 17 μA, making them suitable for low power, portable equipment. ADM809LARTZ Features•Specified over temperature•Low power consumption: 17 μA•Precision voltage monitor: 3 V, 5 V options•Reset assertion down to 1 V VCC•30 ms minimum power-on reset•Logic low RESET output•Available in SOT-23 and SC70 packages ADM809LARTZ Applications•Microprocessor systems•Computers•Controllers•Intelligent instruments•Automotive systems
Features

Parameters

[{"Name":"Number of Voltages Monitored: ","Value":"1 "},{"Name":"Monitored Voltage: ","Value":"2.5 V, 3 V, 3.3 V, 5 V "},{"Name":"Undervoltage Threshold: ","Value":"4.56 V "},{"Name":"Overvoltage Threshold: ","Value":"4.7 V "},{"Name":"Power-Up Reset Delay (Typ): ","Value":"840 ms "},{"Name":"Supply Voltage - Max: ","Value":"5.5 V "},{"Name":"Supply Current (Typ): ","Value":"60 uA "},{"Name":"Supply Voltage - Min: ","Value":"1 V "},{"Name":"Minimum Operating Temperature: ","Value":"- 40 C "},{"Name":"Maximum Operating Temperature: ","Value":"+ 125 C "}]

Manufacturer information

MICROCHIP TECHNOLOGY

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.


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