Reference: RBD-2735
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The KA75330 3.3V Voltage Detector is a compact reset/enable controller designed to safeguard microcontrollers and circuits from unstable operation at low voltages. It continuously monitors the supply voltage, and when the level drops below 3.3V, the output pin is pulled low, effectively disabling the system until stable power is restored. This ensures devices such as ESP8266-based Feather boards or other Li-Po powered systems avoid lockups, corrupted data, or failed startups. With its ability to start working from voltages as low as 0.8V, it provides early-stage protection during power-up. Requiring just a pair of 2.2µF electrolytic capacitors for stable operation, the KA75330 is a simple yet highly effective solution for reliable and safe circuit design. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Detects and regulates low voltage conditions at 3.3V threshold.
Pulls output low when supply voltage drops below 3.3V.
Starts functioning at input voltages as low as 0.8V.
Prevents microcontrollers from lockups and corrupted data.
Simple integration with microcontrollers having Enable pins.
Compact design, suitable for battery-powered devices.
Improves power-up reliability and system stability.
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Protecting microcontrollers from unstable low-voltage operation.
Li-Po battery-powered circuits (e.g., Feather boards, ESP8266).
Reset/enable control in embedded electronics projects.
Preventing lockups or corrupted data during low battery conditions.
Educational and DIY projects requiring reliable power management.
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| General Specifications | |
| Product Type | Voltage Detector / Reset Controller |
| Model | KA75330 |
| Detection Voltage | 3.3V |
| Startup Voltage | 0.8V |
| Output Behavior | Pulls low when V < 3.3V |
| Required Capacitors | 2.2µF electrolytic (input & output) |
| Suitable For | Microcontrollers with Enable pin |
| Application | Power stability, reset/enable control |
| Shipment Weight | 0.0005 kg |
| Shipment Dimensions | 2 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x Reset / Enable Controller - KA75330 3.3V Voltage Detector
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