MIC6315 Open-Drain P Reset Circuit General Description Features The MIC6315 is an inexpensive reset generator circuit that Precision voltage monitor for 3V, 3.3V, or 5V power monitors power supplies in microprocessor-based supplies systems. /RESET remains valid with V as low as 1V CC The function of this device is to assert a reset if either 5A supply current the power supply drops below a designated reset 20ms, 140ms, or 1100ms minimum reset pulse widths threshold level or /MR is forced low. Several different reset available threshold levels are available to accommodate 3V, 3.3V, Manual reset input or 5V powered systems. Available in 4-pin SOT-143 package The MIC6315 has an active low, open-drain /RESET Applications output. The reset output is guaranteed to remain asserted for a minimum of either 20ms, 140ms, or 1100ms after V CC Portable equipment has risen above the designed reset threshold level. The Intelligent instruments MIC6315 is available in a 4-pin SOT-143 package. Critical microprocessor power monitoring Datasheets and support documentation are available on Printers/computers Micrels web site at: www.micrel.com. Embedded controllers Typical Application Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC6315 Ordering Information Operating Nominal V Minimum t (1, 2) (3) TH RST Part Number Marking Temperature Package Lead Finish (V) (ms) Range MIC6315-26D2UY NY 2.63 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-29D2UY NM 2.93 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-30D2UY N2 3.00 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-31D2UY NF 3.08 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-40D2UY NW 4.00 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-41D2UY N6 4.10 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-44D2UY NG 4.38 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-46D2UY NQ 4.63 20 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-26D3UY NR 2.63 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-29D3UY NP 2.93 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-30D3UY N3 3.00 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-31D3UY NU 3.08 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-40D3UY N8 4.00 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-41D3UY N5 4.10 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-42D3UY 05 4.20 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-44D3UY NH 4.38 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-46D3UY NX 4.63 140 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-26D4UY NS 2.63 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-29D4UY NN 2.93 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-30D4UY N4 3.00 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-31D4UY 2N 3.08 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-40D4UY M9 4.00 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-41D4UY M7 4.10 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-44D4UY NJ 4.38 1100 40C to +85C 4-Pin SOT-143 Pb-Free MIC6315-46D4UY NZ 4.63 1100 40C to +85C 4-Pin SOT-143 Pb-Free Note: 1. Ship format Tape and reel only (ordering part number add space TR example. MIC6315-26D2UY TR). 2. Standard reel quantity is 3000 pieces. Reel diameter 7in. / Hub diameter 2in. / Width 8mm. 3. Underbar symbol ( ) may not be to scale. October 17, 2014 Revision 2.0 2