The ASM1812 is a voltage supervisory device with low-power, 5V µP Reset, active HIGH, Push-Pull output. Maximum supply current over temperature is a low 20µA. The ASM1812 issues an active HIGH reset signal whenever the monitored supply is out of tolerance. A precision reference and comparator circuit monitor power supply (VCC) level. Tolerance level options are 5%, 10% and 15%. When an out-of- tolerance condition is detected, an internal power-fail signal is generated which forces an active HIGH reset signal. After VCC returns to an in-tolerance condition, the reset signal remains active for 150ms to allow the power supply and system microprocessor to stabilize. The ASM1812 is designed with a push-pull output stage and operates over the extended industrial temperature range. Devices are available in TO-92 and compact surface mount SOT-23 packages. Other low power products in this family include the ASM1810/ 11/15/16/17, ASM1233D and ASM1233M.
The ASM1812 is a voltage supervisory device designed to issue an active HIGH reset signal when the monitored power supply goes out of tolerance. It features a precision temperature-compensated reference and comparator circuit, eliminating the need for external components. The device operates over an extended industrial temperature range from -40°C to +85°C.
| Maximum Supply Current | 20 uA (5.5 V) |
|---|---|
| Reset Delay Time | 150ms |
| Supply Voltage Range | 4.2V to 5.5V |
| Output Current (Sink) | +10 mA |
| Packages Available | TO-92 and SOT-23 |
The ASM1812 provides an active HIGH push-pull output.
No, it eliminates external components due to its internal precision reference and comparator.