Product description: Large Push MOSFET switch HP 4.5-40 V / 16 A - with protection against reverse current
Push button module as an alternative to mechanical buttons. The switch is bistable, one press switches on the power supply and another press switches it off. Additional inputs enable e.g. automatic switching off. The module operates with voltages from 4.5 V to 40 V for current consumption up to 16 A. The board has a built-in small pushbutton and allows the connection of external buttons. The switch current does not affect the controlled system, so you can use different buttons to control considerable power.
Large HP MOSFET Switch 4.5-40V/16A - with back current protection - Pololu 2813.
Large HP MOSFET Switch 4.5-40V/16A - with back current protection - Pololu 2813.
Specification
- Maximum voltage: 40 V
- Recommended operating voltage: 4.5 to 32 V
- Continuous current at 55 °C: 6 A
- Continuous current at 150 °C: 16 A
- Maximum current: 90 A
- LED colour: green
- Dimensions: 20 x 25 x 4 mm
- Weight: 2,7 g
Advantages
- Small in size
- Protection against reverse current
- Multiple switches can be connected for improved control
- Better performance than mechanical switches
- Self-disconnecting
- Possibility of digital control by external devices
- Compatible leads with contact plate, 2.54 mm raster
Disadvantages
- The switch is one-way (VOUT voltage cannot be switched to VIN)
- Limited voltage range
- The switch may lose its state in the event of a power outage (by default, it is switched off on the first time the power is supplied, but can be switched on around the upper operating range by default)
- Only works with direct current
- No full insulation in off condition
Screw connectors and goldpin connectors are included in the module.
Use of the switch
A built-in button is sufficient for basic use. One press turns the power on and another turns it off. More advanced options are controlled by the other pins:
| Pin | Description |
|---|---|
| VIN | Power supply voltage. |
| VOUT | Output voltage. |
| GND | The weight of the system. |
| A |
Connection via a momentary button to pin B for normal ON/OFF operation. Connection via the instantaneous button to ground for continuous operation. |
| B | Connection via the instantaneous button to pin A for normal ON/OFF operation. |
| ON | Pulse above with an amplitude of more than 1 volt on this pin turns on the switch. |
| OFF | An above-average pulse with an amplitude of more than 1 volt on this pins turns the switch off. |
| CTRL | Direct control over the status of the switch. High state (over 1 V) turns the switch on, low state turns it off. Not switched on does not set the switch status. Do not set CTRL and OFF pins to high state simultaneously. |
