MC34164P-5G

The MC34164P-5G from ON Semiconductor is a micropower undervoltage sensing circuit designed for use as a reset controller in portable microprocessor-based systems where extended battery life is crucial. This device offers an economical solution for low voltage detection, requiring only a single external resistor. It features a temperature-compensated bandgap reference, a comparator with precise thresholds and built-in hysteresis to prevent erratic reset operation, and an open collector reset output capable of sinking in excess of 6.0 mA.

The MC34164P-5G monitors 5.0 V power supplies and guarantees reset operation down to 1.0 V input with extremely low standby current, as low as 9.0 µA. The component is housed in a TO-92 (TO-226AA) package, suitable for through-hole mounting. Its precise comparator thresholds are guaranteed over temperature, and it includes an internal clamp diode for discharging delay capacitors. This makes it an ideal choice for applications including direct monitoring of the 3.0 V or 5.0 V MPU/logic power supply used in appliance, automotive, consumer, and industrial equipment.

Key electrical characteristics include a 4.33V monitoring voltage and active low reset logic. The output type is open drain or open collector. The operating temperature range is from 0°C to 70°C (TA). The device is RoHS3 compliant, has an MSL of 1, and is REACH unaffected, though these compliance statuses are unverified.