 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MIC845LBC5 Datasheet(PDF) 6 Page - Micrel Semiconductor |
|
||||||||||||||||||||||||||||||
MIC845LBC5 Datasheet(HTML) 6 Page - Micrel Semiconductor |
|
|
6 / 7 page  Micrel, Inc. MIC845 July 2005 6 M9999-070505 (408) 955-1690 Application Information Output The MIC845N output is an open-drain MOSFET, so most applications will require a pull-up resistor. It is recommended that the value of this resistor not exceed 470kΩ, otherwise PCB leakages may begin to dominate and give a false output indication. The output of “N” type devices may be pulled up as high as 6V regardless of the IC’s supply voltage, without damage to the IC. The “H” and “L” versions of MIC845 have push-pull output stages, no pull-up resistors are required. The maximum output voltage of the “H” and “L” versions is VDD. Input MIC845 has been designed to present an almost infinite input resistance at its INP pin making it ideal for monitoring lithium coin cell and back-up batteries. In applications where the ‘battery low’ voltage is 2.55V, MIC845’s INP pin may be tied directly to the cell’s positive terminal without any additional circuitry. MIC845’s input may be subjected to voltages as high as 6V, steady-state, without any adverse effects, regardless of the IC’s supply voltage. This applies even if the supply voltage is zero. This permits a situation wherein the IC’s supply is turned off, but an input voltage is still present. Under such conditions, there will be no conduction from INP to VDD or any circuitry internal to MIC845. Input Transients MIC845 is inherently immune to very short negative-going “glitches.” Very brief transients may exceed the VINP threshold without tripping the output. As shown in the figure below, the narrower the transient, the deeper the threshold overdrive that will be ignored by the MIC845. The graph represents the typical allowable transient duration for a given amount of threshold overdrive that will not generate an output. 0 2 4 6 8 10 12 14 16 0 200 400 600 800 1000 COMPARATOR OVERDRIVE Input Transient Response VREF - VINP (mV) |
Similar Part No. - MIC845LBC5 |
|
Similar Description - MIC845LBC5 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
