PRT-27081, SparkFun Soft Power Switch - USB-C

PRT-27081, SparkFun Soft Power Switch - USB-C

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.

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.

Features:

• Input Voltage:
  • Maximum: 5.5V
  • Minimum: 1.8V
  • Typically 5V from USB
• Maximum Current Draw:
  • 2A continuous
  • 4A peak (fuse protected)
• MOSFET:
  • SIL2308 N- & P-Channel
  • 70mΩ typical P-Channel on-resistance
• Power Consumption:
  • Very low quiescent current: <1µA @ 3.75V (with VIN LED disabled)
• Connectors:
  • 2x USB Type C
• Power Pins:
  • VIN
  • VOUT
• USB:
  • USB data feed-through
• Controls:
  • Built-in momentary push button
  • Hard override: Push and hold the button for ~10 seconds
• Breakout PTH Pins:
  • GND
  • VIN
  • VOUT
  • BTN: Connect external button between BTN and GND (optional)
  • PUSH: Open-drain output, requires pull-up; low indicates button is pushed
  • OFF: Drive high to turn output off
• LED Indicators:
  • VIN LED
  • VOUT LED
  • Both LEDs can be disabled if desired
• Jumpers:
  • Input power LED
  • Output power LED
• Dimensions:
  • 1.0 in × 1.0 in (25.4 mm × 25.4 mm)
• Weight:
  • 3.25 g