Reset / Enable Controller - KA75330 3.3V Voltage Detector
KA75330 voltage supervisor that asserts a reset signal when supply voltage falls below the 3.3 V threshold. Useful for preventing microcontroller lockups or data corruption when running from a discharging battery.
Pinout
- Input
Monitored supply/input voltage. Adafruit product page states the KA75330 monitors the voltage on one Input pin and starts running at voltages as low as 0.8V.
Type · powerVoltage · Monitors 3.3V threshold; starts running as low as 0.8V per Adafruit product page. - Output
Reset/enable output. Adafruit product page states when Input goes below 3.3V it pulls the Output pin low; connect Output to a board Enable pin to disable low-voltage operation.
Type · signalVoltage · Pulls low when monitored voltage drops below 3.3V per Adafruit product page. - GND
Ground reference for the KA75330 voltage detector circuit.
Type · groundVoltage · 0V reference
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| Input |
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