MIC2775-29YM5-TR Microchip

MIC2775 Micro-Power Voltage Supervisor IttyBitty General Description Features The MIC2775 is a power supply supervisor that provides Monitors power supply for undervoltage conditions undervoltage monitoring, manual reset capability, and Choice of factory-programmed thresholds power-on reset generation in a compact 5-pin SOT Generates 140ms (minimum) power-on reset pulse package. Features include an undervoltage detector, a Manual reset capability delay generator, a manual reset input, and both active- high and active-low reset outputs. The undervoltage Both active-high and active-low reset outputs detector compares V against a fixed threshold. Ten DD /RST output valid down to 1.2V factory-programmed thresholds are available. Ultra-low supply current, 3.5A typical The reset outputs are asserted for no less than 140ms at Rejects brief input transients power-on and any time the input voltage drops below the No external components reference voltage. It remains asserted for the timeout For extended temperature range see Micrels MAX825 period after the input voltage subsequently rises back IttyBitty 5-pin SOT-23 package above the threshold boundary. A reset can be generated at any time by asserting the manual reset input, /MR. This Applications reset output will remain active at least 140ms after the release of /MR. The /MR input can also be used to daisy- Monitoring processor core and input/output voltages chain the MIC2775 onto existing power monitoring circuitry Computer systems or other supervisors. Hysteresis is included to prevent PDAs, handheld PCs chattering due to noise. Typical suppy current is an ultra- Embedded controllers low 3.5A. Telecommunications systems Datasheets and support documentation are available on Power supplies Micrels website at: www.micrel.com. Typical Application IttyBitty is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC2775 Ordering Information (1,2) (1,3) (4) Part Number Marking Junction Temperature Range Package MIC2775-XXYM5 UJXX 40C to +85C SOT-23-5 Note: 1. XX = Voltage Code, see Part Numbering Conventions below. There are ten standard versions available with an order increment of 3,000 pieces. Samples of standard versions are normally available from stock. Contact factory for information on non-standard versions. Available in tape-and-reel only. 2. Order entry part number add a space, then TR. Example: MIC2775-22YM5 TR. 3. Underbar ( ) symbol may not be to scale. 4. Standard reel SOT-23: Reel diameter is 7 inches, hub diameter is 2 inches, width is 8mm. Part Numbering Conventions March 23, 2015 Revision 4.0 2