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This board operates from 4.5 V to 40 V and can deliver continuous currents up to around 8 A. Digital GPIO pins of micro controllers can be controlled by the push button on the board. Additionally there is reverse voltage protection on the board. You can on-off by pushing the button once.
This circuit is made of 2 P channel MOSFETs and works with positive signal delivering principal. As high current does not flow the push button on the board, it is possible to deliver high current by using a digital out pin of a microcontroller. You can use this board in your projects as relays.
- Max voltage: 40 V
- Recommended voltage limits: 4.5 - 32 V
- Mosfet resistance in conduction: 40 mΩ @ 4.5 V, 8.6 mΩ @ 30 V
- Max continous current at 55°C: 4 A
- Max continous current at 150°C: 8 A
- Max current: 40 A
- Current consumption in on state: ~120 μA/V
- Current consumption in off state: < 0.01 μA
- LED color: Green
- Size: 20 mm x 25.4 mm x 0.4 mm
- Weight: 2.7 gr
The simplest way to control the Pushbutton Power Switch is via its installed pushbutton: one push turns on power and another turns it off.
A and B pins: It is possible to use them by connecting to one of push buttons with the same functionality. Connect A pin through momentary switch to ground for on-only operation.
ON pin: A high pulse (> 1 V) on this pin turns on the switch.
OFF pin: A high pulse (> 1 V) on this pin turns off the switch.
CTRL pin: This pin directly determines the state of the switch. A high pulse (> 1 V) on this pin turns on the switch; a low pulse (e.g. driving the pin low with a microcontroller output line or pushing a button connected from this pin to ground) turns the switch off. Leave this pin disconnected or floating when not trying to set the switch state.