General Description

The MIC1810 is an inexpensive microprocessor supervisory circuit that monitors power supplies in microprocessor 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 5, 10, or 15 drop in 5V powered systems.

The MIC1810 has an active low /RESET output. The reset output is guaranteed to remain asserted for a minimum of 100ms after V

CChas risen above the designated reset threshold level. The MIC1810 comes in a 3-pin SOT-23 package.

Features

• Precision voltage monitor for 5, 10, or 15 drop in 5V power supplies

• /RESET remains valid with VCC as low as 1V

• 5µA supply current (typical)

• 100ms minimum reset pulse width

• No external components required

• Available in 3-pin SOT-23 package

Applications

• Portable equipment

• Intelligent instruments

• Critical microprocessor power monitoring

• Printers/computers

• Embedded controllers