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MIC803-40D4VM3 Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC803-40D4VM3 Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 10 page MIC803 3-Pin Microprocessor Supervisor Circuit with Open-Drain Reset Output Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com December 2010 M9999-122310-A General Description The MIC803 is a single-voltage supervisor with open-drain reset output that provides accurate power supply monitoring and reset generation in microprocessor based systems. The function of the device is to assert a reset signal if the power supply voltage drops below the Reset Threshold voltage, and retain this reset for the Reset Timeout Period once the power supply increases above the Reset Threshold voltage. The MIC803 consumes only 4.5 μA of supply current and offers three reset delay periods of 20ms, 140ms and 1120ms (min). It features factory programmed reset threshold levels from 2.63V to 4.63V to accommodate 3.0V, 3.3V, and 5.0V power supplies. It is available in the compact 3-pin SC-70 and SOT-23 packages. Features • 4.5μA supply current (typical) at 3.6V • Open-Drain /RESET output • /RESET remains valid with VCC as low as 1V • 20ms, 140ms, or 1120ms (min) reset timeout Options • 2.63V to 4.63V Preset Voltage Threshold Options • 2.5% Voltage Threshold Accuracy over temperature • 3-pin SC70-3 package (2.0mm x 2.1mm) • 3-pin SOT-23 package (2.3mm x 2.9mm) • -40˚C to +125˚C Junction Temperature Range Applications • Critical microcomputer power monitoring • Portable equipment • Solid state drives • Printers/computers • Embedded controllers ____________________________________________________________________________________________________________ Typical Application VCC 100k VCC RESET VCC µP MIC803 GND GND RESET |
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