MIC2775-28YM5 Micrel Inc, MIC2775-28YM5 Datasheet
MIC2775-28YM5
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MIC2775-28YM5 Summary of contents
Page 1
... A reset can be generated at any time by asserting the manual reset input, /MR. This reset output will remain active at least 140ms after the release of /MR. The /MR input can also be used to daisy-chain the MIC2775 onto existing power monitoring circuitry or other supervisors. Hysteresis is included to prevent chattering due to noise. ...
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... Contact factory for information on non-standard versions. Available in tape-and-reel only. Pin Configuration Pin Description Pin Number Pin Name 1 /RST 2 GND 3 RST 4 /MR 5 VDD MIC2775 Typical Nominal Threshold Application ( 5.0V ±5% 5.0V ±10% 3.3V ±5% 3.3V ±10% 3.0V ±5% 2.85V ±5% 2.70V ±5% 2.5V ±5% 2.4V ±5% 1.8V ± ...
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... V /MR IL )” as shown in “Standard Voltage Options Table.” (Note 2) ) .................................. +1.5V to +5. .....................................–0.3V to +6.0V /MR ) .............. –40°C to +85° ....................... 256°C/W JA Min Typ Max 3.5 V –1. 140 280 0.8V DD 0.8V DD 0. 100 100 = 1.2V. DD Units µA +1. µs ms 0 µ MIC2775 ...
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... Timing Diagram / /RST V (ACTIVE LOW RST V (ACTIVE HIGH) OL MIC2775 A A > t MIN t t RST RST Propagation delays not shown for clarity. Note A. The MIC2775 ignores very brief transients. See “Applications Information” for details HYST RST November 2005 ...
Page 5
... Typically, the MIC2775 is used to monitor the power supply of intelligent circuits such as microcontrollers and micropro- cessors. By connecting the appropriate reset output of a MIC2775 to the reset input of a µC or µP, the processor will be properly reset at power-on and during power-down and brown-out conditions. In addition, asserting /MR, the manual reset input, will activate the reset function ...
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... DD not turn on sufficiently to produce a valid logic-low on /RST. In this situation, circuits driven by /RST could be allowed to float, causing undesired operation. (In most cases, however expected that the circuits driven by the MIC2775 will be similarly inoperative at V ≤ 1.2V given application requires that /RST be valid below V = 1.2V, this can be accomplished by adding a pull-down re- sistor to the /RST output. A value of 100kΩ ...
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... Micrel Products for use in life support appliances, devices or systems is a Purchaser's own risk and Purchaser agrees to fully indemnify November 2005 SOT-23-5 (M5 (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2000 Micrel, Inc. 7 http://www.micrel.com MIC2775 ...