Texas Instruments recommends following a star-grounding topology, keeping analog and digital grounds separate, and using a solid ground plane to minimize noise. Additionally, keep the input and output traces short and away from each other to reduce crosstalk.
The thermal shutdown feature is designed to protect the device from overheating. If the device exceeds the thermal shutdown temperature (typically 150°C), it will shut down. To handle this, ensure good thermal design, use a heat sink if necessary, and implement a thermal monitoring and shutdown detection mechanism in your system.
The recommended input capacitance is 10nF to 100nF, and output capacitance is 10nF to 1uF. Increasing input capacitance can improve noise rejection, while increasing output capacitance can improve stability and reduce ringing. However, excessive capacitance can degrade performance and increase settling time.
To ensure EMC, follow proper PCB layout and routing guidelines, use shielding and grounding techniques, and implement filtering and decoupling capacitors. Additionally, consider using a shielded enclosure and ensuring that the device is properly soldered and connected to the PCB.
The recommended power-up sequence is to apply VCC first, followed by the input signal. During power-down, remove the input signal first, then VCC. This sequence helps prevent damage from voltage spikes and ensures proper shutdown.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
