SGM810-LXN3L/TR MCU voltage monitoring - IC, 4.63 V, -40/+125°C, SOT-23

MCU voltage monitoring - IC, 4,63V, -40/+125°C, SOT-23

Description: The SGM803/SGM809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. They provide a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1V. The SGM803/SGM809 provides an active low reset signal (RESET ) while the SGM810 provides an active high signal (RESET) output. The SGM809/SGM810 has push-pull outputs, whereas the SGM803 has an open-drain output, which requires an external pull-up resistor. Eight reset threshold voltage options are available suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V supply voltages. The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC. The low supply current of typically 13µA makes the SGM803/SGM809/SGM810 ideal for use in portable, battery operated equipment. All are specified over the extended -40° to +125° temperature range.

Features: - Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V, 5V Options - Superior Upgrade for MAX803/MAX809/MAX810 and ADM803/ADM809/ADM810 - Fully Specified over Temperature - Low Power Consumption: (13µA TYP) - Reset Assertion Down to 1V VCC - 150ms Power-On Reset (MIN)

- Open-Drain nRESET Output (SGM803)

- Push-Pull nRESET Output (SGM809)

- Push-Pull RESET Output (SGM810) - -40° to +125° Operating Temperature Range - Small Packaging

- SGM803 Available in SOT-23-3 and SOT-23

- SGM809 Available in SOT-23-3 and SOT-23

- SGM810 Available in SOT-23-3 and SOT-23

Application: - Microprocessor Systems - Controllers - Intelligent Instruments - Automotive Systems - Safety Systems - Portable Instruments