Power Integrations AC/DC Converter, 24V Max Output, 5V Min Output, 24-Pin InSOP-24D Package INN3949CQ-TL

Power Integrations INN3949CQ-TL is an advanced AC/DC converter IC designed to simplify the design of isolated flyback power supplies. It integrates primary and secondary control circuits along with safety-rated feedback into a single chip, enabling precise and stable output voltage regulation across a wide input voltage range starting from 40V DC up to 1.2kV.

Operating at a switching frequency of 95kHz, this device ensures high power efficiency, reaching up to 90% across the full load spectrum, with ultra-low no-load input power below 15 mW. It can operate in extreme temperature ranges from -40°C to 150°C, making it suitable for demanding industrial and automotive environments.

The INN3949CQ-TL uses a flyback topology and comes in a compact 24-pin InSOP-24D surface-mount package, which facilitates integration into space-constrained PCB layouts. It incorporates multiple protection features such as input under voltage lockout, output overvoltage and overcurrent limiting, as well as overtemperature shutdown to ensure safe and reliable operation.

This AC/DC Converter complies with key international standards including CQC (GB4943.1), TUV (EN62368), EN61000-4 suite (4-2 to 4-9), VDE 0884-17 (EN IEC 60747-17), and UL1577, certifying it for use in safety-critical power systems.

Typical applications for the INN3949CQ-TL include industrial automation power supplies, communication equipment, embedded systems, and automotive power management where isolation and efficiency are paramount.

Supports maximum input voltage of 1.2kV for wide voltage range applications. Switching frequency is 95kHz for efficient power management. Operates effectively between -40°C and 150°C, suitable for harsh environments. Includes multiple built-in protections such as output overvoltage and overcurrent limiting.

Configured with Flyback topology for isolated power conversion. Compact surface mount InSOP-24D package facilitates PCB space saving. Compatible with automotive and industrial electronics applications. Complies with multiple global safety and quality standards including CQC, TUV, VDE, and UL1577.

Implements energy efficient design with under 15 mW no-load power consumption. Discover a wide range of semiconductor power management ICs and components on EnvMart for your industrial and electronic design needs.