TNY290PG datasheet by Power Integrations

TNY290PG Frequently Asked Questions (FAQs)

• What is the maximum output power that the TNY290PG can handle?
  The TNY290PG is a 90W offline switcher IC, but the maximum output power depends on the specific application and design. However, as a general guideline, it can handle up to 90W of output power with proper heat sinking and thermal management.
• How do I ensure the TNY290PG operates within its safe operating area (SOA)?
  To ensure the TNY290PG operates within its SOA, follow the guidelines in the datasheet for maximum voltage, current, and power dissipation. Additionally, ensure proper heat sinking, thermal management, and layout to minimize thermal resistance and voltage stress.
• What is the recommended PCB layout for the TNY290PG?
  The recommended PCB layout for the TNY290PG involves keeping the high-voltage nodes (e.g., drain and source) away from the low-voltage nodes (e.g., VCC and GND). Use a multi-layer PCB with a solid ground plane, and ensure that the high-current paths are short and wide to minimize inductance and resistance.
• How do I optimize the transformer design for the TNY290PG?
  To optimize the transformer design for the TNY290PG, follow the guidelines in the datasheet for transformer turns ratio, inductance, and leakage inductance. Additionally, consider the core material, wire size, and insulation to minimize losses and ensure efficient energy transfer.
• What are the key considerations for EMI filtering with the TNY290PG?
  When designing EMI filters for the TNY290PG, consider the frequency range of interest, the impedance of the filter components, and the layout of the filter components to minimize radiation and conduction of EMI. Follow the guidelines in the datasheet and relevant EMI standards (e.g., CISPR 22) for filter design and layout.