TCA9509DGKR datasheet by Texas Instruments

TCA9509DGKR Frequently Asked Questions (FAQs)

• What is the maximum current rating of the TCA9509DGKR?
  The maximum current rating of the TCA9509DGKR is 100 mA per channel.
• How do I configure the TCA9509DGKR for I2C or SMBus operation?
  The TCA9509DGKR can be configured for I2C or SMBus operation by connecting the SCL pin to a pull-up resistor and the SDA pin to a pull-up resistor or an open-drain output.
• What is the minimum and maximum operating voltage of the TCA9509DGKR?
  The minimum operating voltage of the TCA9509DGKR is 1.65 V and the maximum operating voltage is 5.5 V.
• How do I handle the power-on reset (POR) of the TCA9509DGKR?
  The TCA9509DGKR has a built-in power-on reset (POR) circuit that resets the device when the power supply voltage is below a certain threshold. No external circuitry is required to handle POR.
• Can I use the TCA9509DGKR in a hot-swappable application?
  Yes, the TCA9509DGKR is designed to support hot-swappable applications. It has built-in overcurrent protection and can detect and recover from overcurrent conditions.