{"title":"Soft Power Switch - JST 2mm","handle":"sparkfun-soft-power-switch-jst-2mm","url":"/products/sparkfun-soft-power-switch-jst-2mm","description":"This compact power-control board gives battery-powered projects a laptop-style on/off button while still allowing your microcontroller to take part in the shutdown process. A quick press turns the system on, another press can be handled by the MCU for an orderly shutdown, and a long press provides a hard power-down override if your code gets stuck.It is built around a fully digital Texas Instruments design and includes a self-resetting 2A fuse, VIN and VOUT status LEDs, and very low quiescent current to help preserve battery life. This version is fitted with JST 2mm battery connectors and is intended for DC loads up to 5.5V only.The board breaks out GND, VIN, VOUT, BTN, PUSH and OFF through PTH pads. Connect PUSH and OFF to your microcontroller to detect button presses and request a controlled power-off, or add an external momentary button between BTN and GND.Supporting documentation from SparkFun includes schematic files, KiCad files, a 3D model, board dimensions, hookup guide, component datasheets, an example sketch and the hardware repo.Features:Software feedback and control: passive, hard on/off switching with MCU interaction.Simple press on: a simple press will turn the system on.MCU-assisted power-off: another press can, with MCU intervention, turn off the system.Hard override: pressing and holding the button for ~10 seconds will force a power-down.Overcurrent protection: self-resetting 2A fuse.Visual feedback: input and output LEDs.Microcontroller pins: PUSH and OFF pins for monitoring button presses and initiating controlled shutdown.Timing control: wake-up and power-down times can be customised.Battery charging: supports battery charging while powering your project.Load type: designed for DC loads and not designed for AC loads.Specifications:Input voltage: 5.5V maximum, 1.8V minimumTypical input: Typically ~3.7V from a single cell LiPo BatteryMaximum current draw: 2A continuous, 4A peak (fuse protected)MOSFET: SIL2308 N&P-Channel MOSFETP-Channel on-resistance: 70mΩ (0.070 Ohm) typical P-Channel on-resistanceQuiescent current: Very low quiescent current: <1µA @ 3.75V, with VIN LED disabledConnectors: 2x 2-Pin JST Right-Angle ConnectorsVIN: VINVOUT: VOUTBattery charging: Supports battery chargingPush button: Built-in momentary push buttonHard override: push and hold the button for ~10 secondsBreakout PTH: providedBreakout PTH pins: GND, VIN, VOUTBTN: if desired, connect an external button between BTN and GNDPUSH: open-drain output, requires pull-up, low indicates button is pushedOFF: drive high to turn the output offLEDs: VIN and VOUT (can be disabled if desired)Jumpers: providedInput power LED: Input power LEDOutput power LED: Output power LEDDimensions: 1.0in. x 1.0in. (25.4mm x 25.4mm)Weight: 3.10gA handy choice for enclosed LiPo-powered builds that need a reliable front-panel power button and controlled shutdown behaviour.","vendor":"SparkFun","product_type":"Power Switch Module","in_stock":false,"options":[],"variants":[{"id":15868,"title":"Default Title","sku":"SF-PRT-26993","mpn":"PRT-26993","price":14.45,"on_sale":false,"in_stock":false,"available_quantity":0}]}