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SparkFun Soft Power Switch - USB-C

SKU: PRT-27081 Brand: Sparkfun

The SparkFun Soft Power Switch is a passive, hard on/off switch with software feedback and control via USB-C connectors...

Special Price $7.98 AUD, inc GST

Regular Price $10.04 AUD, inc GST

$7.25 AUD, exc GST

Special pricing ends 24 March 2025

* this special may end earlier than shown

Available with a lead time
Expect dispatch between Dec 30 and Jan 02

The 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 Thing Plus board and need a good power button, this is the board you need. This version has two USB-C connectors, but Sparkfun also have a version with JST 2mm battery connectors.

The Soft Power Switch is reliable and efficient, based on a robust, fully digital design from Texas Instruments. It features 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.

Connect 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 customize the wake-up and power-down times to create the perfect user experience. The Soft Power Switch also supports USB data feed-through.

Get Started With the SparkFun Soft Power Switch - USB-C Guide

Features

Input voltage: 5.5V maximum, 1.8V minimum
- Typically 5V from USB
Maximum current draw: 2A continuous, 4A peak (fuse protected)
SIL2308 N&P-Channel MOSFET
- 70m? (0.070 Ohm) typical P-Channel on-resistance
Very low quiescent current: <1µA @ 3.75V, with VIN LED disabled
2x USB Type C Connectors
- VIN
- VOUT
- USB data feed-through
Built-in momentary push button
- Hard override: push and hold the button for ~10 seconds
Breakout PTH:
- GND, VIN, VOUT
- BTN: if desired, connect an external button between BTN and GND
- PUSH: open-drain output, requires pull-up, low indicates button is pushed
- OFF: drive high to turn the output off
LEDs: VIN and VOUT (can be disabled if desired)
Jumpers
- Input power LED
- Output power LED
Dimensions: 1.0in. x 1.0in. (25.4mm x 25.4mm)
Weight: 3.25g

Documents

This product is listed in:

Power & Batteries>Others

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NSW, 2289
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