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 a 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 VCC has risen above the designated reset threshold level. The MIC1810 comes in a 3-pin SOT-23 package.
The Micrel MIC1810 is an inexpensive microprocessor supervisory circuit designed to monitor power supplies in microprocessor-based systems. It asserts a low-level reset signal if the supply voltage drops below a designated threshold, ensuring the processor resets properly after a power failure or drop.
Available with three different reset threshold levels (5%, 10%, and 15% drop for 5V systems), the device guarantees a minimum reset pulse width of 100ms. It operates from a supply voltage as low as 1.4V and is supplied in a compact 3-pin SOT-23 package requiring no external components.
| Package Type | 3-Pin SOT-23 |
|---|---|
| Supply Current (Typical) | 9 µA |
| Minimum Reset Pulse Width | 100ms |
| Operating Voltage Range (TA=0°C to 70°C) | 1.4V to 5.5V |
| Reset Timeout Period (Min) | 100ms |
The RESET output remains valid with VCC as low as 1.4V.
No, it is designed to operate without any external components required.