MIC1815-20UY TR Microchip

MIC1815 Micrel MIC1815 Microprocessor Reset Circuit General Description Features The MIC1815 is an inexpensive microprocessor supervisory Precision voltage monitor for 10% or 20% drop in 3.3V circuit that monitors power supplies in microprocessor based power supplies systems. /RESET remains valid with V as low as 1V CC 5A supply current The function of these devices is to assert a reset if the power 100ms minimum reset pulse width supply drops below a designated reset threshold level. Several No external components required different reset threshold levels are available to accommodate Available in 3-pin SOT-23 package 10% or 20% drop in 3.3V powered systems. The MIC1815 has an active low /RESET output. The reset Applications output is guaranteed to remain asserted for a minimum of Portable equipment 100ms after V has risen above the designated reset thresh- CC Intelligent instruments old level. The MIC1815 comes in a 3-pin SOT-23 package. Critical microprocessor power monitoring Printers/computers Embedded controllers Ordering Information Threshold Part Number Marking Voltage Operating Temp. Range Package Pb-Free MIC1815-10U ND 2.88V 40C to +85C SOT-23 No MIC1815-20U NE 2.55V 40C to +85C SOT-23 No MIC1815-10UY ND 2.88V 40C to +85C SOT-23 Yes MIC1815-20UY NE 2.55V 40C to +85C SOT-23 Yes Typical Application V CC V V CC CC MIC1815 P RESET RESET Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 474-1000 fax + 1 (408) 944-0970 MIC1815 Micrel Pin Conguration RESET 1 GND MIC1815 3 V CC 2 3-Lead SOT23 Pin Description Pin Number Pin Name Pin Function 1 /RESET /RESET goes low if V falls below the reset threshold and remains as- CC serted for one reset timeout period (100ms min) after V exceeds the reset CC threshold. 2 VCC Power supply input. 3 GND IC ground pin MIC1815 2 July 2005