STHDLS101TQTR datasheet by STMicroelectronics

STHDLS101TQTR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN5156, which includes guidelines for thermal pad connection, thermal vias, and copper pouring to ensure optimal thermal performance.
• How do I handle the thermal shutdown feature?
  The thermal shutdown feature is enabled by default. To handle it, monitor the TSD pin, which goes low when the device reaches the thermal shutdown temperature (typically 150°C). You can also use an external thermal sensor to monitor the temperature and take corrective action.
• What is the maximum allowed voltage on the VIN pin?
  Although the datasheet specifies a maximum voltage of 5.5V, it's recommended to limit the voltage to 5V to ensure reliable operation and prevent damage to the internal voltage regulator.
• How do I configure the device for low-power mode?
  To configure the device for low-power mode, set the EN pin low and ensure the VIN pin is below 2.5V. This will reduce the quiescent current to around 1µA. Additionally, you can use the power-down mode by setting the PD pin low.
• What is the recommended capacitor value for the VIN pin decoupling?
  STMicroelectronics recommends using a 10µF ceramic capacitor with a voltage rating of 10V or higher for VIN pin decoupling. This helps to filter out noise and ensure stable operation.