LM809M3X-4.38

3-Pin, Microprocessor Reset Circuits, SOT-23, 140ms min, Low Supply Current 15μA

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Price:: US $0.00~0.05 / piece [Get Latest Price]

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PartNumber:: LM809M3X-4.38

Brand:: National Semiconductor - NS | Pack: SOT | D/C: 10+

Availability:: Supply Ability: 50000/Month Can Ship Immediately
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Products Upload time: 2013-01-04

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Part Number:LM809M3X-4.38
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Product Summary

The LM809M3X-4.38 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 LM809M3X-4.38 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240ms after VCC rises above the threshold. The LM809M3X-4.38 has an active-low RESET output. Seven standard reset voltage options are available, suitable for monitoring 5V, 3.3V, and 3V supply voltages. With a low supply current of only 15μA, the LM809M3X-4.38 is ideal for use in portable equipment. The LM809M3X-4.38 is available in the 3-pin SOT23 package and in the 6-Lead LLP package.

Parametrics

LM809M3X-4.38 absolute maximum ratings: (1)VCC: -0.3V to 6.0V; (2)RESET, RESET: -0.3V to (VCC+ 0.3V); (3)Input Current, VCC Pin: 20mA; (4)Output Current, RESET, RESET, Pin: 20mA; (5)Rate of Rise, VCC: 100V/μs; (6)ESD Rating (Note 2): 2kV; (7)Continuous Power Dissipation: 320mW; (8)Ambient Temperature Range: -40℃ to +105℃; (9)Maximum Junction Temperature: 125℃; (10)Storage Temperature Range: -65℃ to +160℃; (11)Lead Temperature (soldering, 10sec): +300℃.

Features

LM809M3X-4.38 features: (1)Precise monitoring of 3V, 3.3V, and 5V supply voltages; (2)Superior upgrade to MAX809/810; (3)Fully specified over temperature; (4)140ms min. Power-OReset pulse width, 240ms typical, Active-low RESET Output; (5)Guaranteed RESET Output valid for VCC≥1V; (6)Low Supply Current, 15μA typ.; (7)Power supply transient immunity.