{"product_id":"sparkfun-soft-power-switch-jst-2mm","title":"SparkFun Soft Power Switch - JST 2mm","description":"\u003cp\u003eThe SparkFun Soft Power Switch is a passive, hard on\/off switch with software feedback and control. In other words, it's like a laptop on\/off switch. A simple press will turn the system on. Another press can (with MCU intervention) turn off the system. And if things go wrong, pressing and holding the button for ~10 seconds will force a power-down. If you're building something with an enclosed battery and need a good power button, this is the board you need. This version has JST 2mm battery connectors.\u003c\/p\u003e \u003cp\u003eThe Soft Power Switch is reliable and efficient, based on a robust, fully digital design from Texas Instruments. It has a self-resetting 2A fuse for overcurrent protection, input and output LEDs for visual feedback, and an incredibly low quiescent current draw to conserve battery power.\u003c\/p\u003e \u003cp\u003eConnect the PUSH and OFF pins to your microcontroller to monitor button presses and initiate a controlled shutdown sequence, ensuring a smooth power-down process. You can customise the wake-up and power-down times to create the perfect user experience. The Soft Power Switch supports battery charging, allowing you to power your project while conveniently replenishing the battery. It's designed for JST 2mm battery connectors and operates with voltages up to 5.5V.\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\"\u003eGet Started with the Sparkfun Soft Power Switch - JST 2mm Guide\u003c\/a\u003e\u003c\/p\u003e \u003ch3\u003eNotes: \u003c\/h3\u003e \u003cul\u003e \u003cli\u003eThe Soft Power Switch - JST 2mm works up to 5.5V only. (Mk1 is good up to 12V.)\u003c\/li\u003e \u003cli\u003eThe Soft Power Switch - JST 2mm was designed to work with DC loads. Unfortunately, the board is not designed for AC loads.\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eInput voltage: 5.5V maximum, 1.8V minimum \u003cul\u003e \u003cli\u003eTypically ~3.7V from a single-cell LiPo Battery\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eMaximum current draw: 2A continuous, 4A peak (fuse protected)\u003c\/li\u003e \u003cli\u003eSIL2308 N\u0026amp;P-Channel MOSFET \u003cul\u003e \u003cli\u003e70mΩ (0.070 Ohm) typical P-Channel on-resistance\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eVery low quiescent current: \u0026lt;1µA @ 3.75V, with VIN LED disabled\u003c\/li\u003e \u003cli\u003e2x 2-Pin JST Right-Angle Connectors \u003cul\u003e \u003cli\u003eVIN\u003c\/li\u003e \u003cli\u003eVOUT\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eSupports battery charging\u003c\/li\u003e \u003cli\u003eBuilt-in momentary push button \u003cul\u003e \u003cli\u003eHard override: push and hold the button for ~10 seconds\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eBreakout PTH: \u003cul\u003e \u003cli\u003eGND, VIN, VOUT\u003c\/li\u003e \u003cli\u003eBTN: if desired, connect an external button between BTN and GND\u003c\/li\u003e \u003cli\u003ePUSH: open-drain output, requires a pull-up, low indicates the button is pushed\u003c\/li\u003e \u003cli\u003eOFF: drive high to turn the output off\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eLEDs: VIN and VOUT (can be disabled if desired)\u003c\/li\u003e \u003cli\u003eJumpers \u003cul\u003e \u003cli\u003eInput power LED\u003c\/li\u003e \u003cli\u003eOutput power LED\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eDimensions: 1.0in. x 1.0in. (25.4mm x 25.4mm)\u003c\/li\u003e \u003cli\u003eWeight: 3.10g\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eResources\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/board_files\/Soft_Power_Switch_JST_2mm_Schematic_V10.pdf\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/board_files\/Soft_Power_Switch-JST_2mm_V10.zip\"\u003eKiCad Files\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/3d_model\/Soft_Power_Switch_JST_2mm_3D_Model.step\"\u003e3D Model\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/img\/SparkFun_Soft_Power_Switch-JST_2mm_Board_Dimensions.jpg\"\u003eBoard Dimensions\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003eComponent Datasheets \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/component_documentation\/sn74lvc1g14.pdf\"\u003eSN74LVC1G14\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/component_documentation\/sn74lvc1g17.pdf\"\u003eSN74LVC1G17\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/component_documentation\/sn74lvc1g175.pdf\"\u003eSN74LVC1G175\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_Soft_Power_Switch_Mk2\/assets\/component_documentation\/TI_Push_Button_scea048b.pdf\"\u003eTexas Instruments Application Report: Push-Button Circuit SCEA048B\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_Soft_Power_Switch_Mk2\/blob\/main\/Examples\/SoftPowerSwitchMk2_Example\/SoftPowerSwitchMk2_Example.ino\"\u003eExample Sketch\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_Soft_Power_Switch_Mk2\"\u003eGitHub Hardware Repo\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":50847116820753,"sku":"PRT-26993","price":5.7,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/sparkfun-soft-power-switch-jst-2mm-sparkfun-prt-26993-72181059944833.jpg?v=1735207203","url":"https:\/\/abcd3032.myshopify.com\/zh\/products\/sparkfun-soft-power-switch-jst-2mm","provider":"Tayyab Zak","version":"1.0","type":"link"}