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Part Number: MIC809
Description: The MIC809 and MIC810 are inexpensive microprocessor supervisory circuits that...
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MIC809
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DataSheet
General Description
MIC809 General Description
The MIC809 and MIC810 are inexpensive microprocessor supervisory circuits that monitor power supplies in micro-processor based systems.
The function of these devices is to assert a reset if the power supply drops below a designated reset threshold level. Several different reset threshold levels are available to accommodate 3V, 3.3V or 5V powered systems.
The MIC809 has an active-low /RESET output, while the MIC810 offers an active-high RESET output. The reset output is guaranteed to remain asserted for a minimum of 140ms after VCC has risen above the designated reset threshold level. Having a push-pull output stage, the MIC809/810 does not require a pull-up resistor at the output. The MIC809/810 comes in a 3-pin SOT-23 and SC-70 package.
The MIC809 is also available with a shorter reset timeout (30ms min.). See the MIC809-5.
All support documentation can be found on Micrel's web site at www.micrel.com.
MIC809 Maximum Ratings
Terminal Voltage (VCC) ...................................0.3V to 6.0V
Input Current (VCC) ..................................................... 20mA
Output Current (RESET, /RESET) .............................. 20mA
Lead Temperature (soldering, 10 sec.) ...................... 300°C
Storage Temperature (TS) .........................65°C to 150°C
Rate of Rise (VCC) .................................................. 100V/µs
ESD Rating(3) . . . . . . . . . . . . . . . . . . . . .3kV (SC70 Package)
Input Current (VCC) ..................................................... 20mA
Output Current (RESET, /RESET) .............................. 20mA
Lead Temperature (soldering, 10 sec.) ...................... 300°C
Storage Temperature (TS) .........................65°C to 150°C
Rate of Rise (VCC) .................................................. 100V/µs
ESD Rating(3) . . . . . . . . . . . . . . . . . . . . .3kV (SC70 Package)
MIC809 Features
• Precision voltage monitor for 3V, 3.3V or 5V power sup-plies
• /RESET remains valid with VCC as low as 1.4V for SOT-23 packaged part
• /RESET remains valid with VCC as low as 1V for SC70 packaged part
• Typically less than15µA supply current for SOT-23 pack-aged part
• 5µ typical supply current for SC70 packaged part
• 140ms minimum reset pulse widths available
• Available in 3-pin SOT-23 and SC-70 package
• /RESET remains valid with VCC as low as 1.4V for SOT-23 packaged part
• /RESET remains valid with VCC as low as 1V for SC70 packaged part
• Typically less than15µA supply current for SOT-23 pack-aged part
• 5µ typical supply current for SC70 packaged part
• 140ms minimum reset pulse widths available
• Available in 3-pin SOT-23 and SC-70 package
MIC809 Typical Application
• Portable equipment
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Controllers
• Intelligent instruments
• Critical microprocessor power monitoring
• Printers/computers
• Controllers
MIC809JYC3
PDF/DataSheet Download
- Datasheet: MIC809JYC3
- File Size: 292356 KB
- Manufacturer: MICREL [Micrel Semiconductor]
- Click here to Download
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