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Product Detailed Parameters
- Description：900V 20W (30-550 VDC)
- Series：-
- Mfr：Power Integrations
- Package：Tape & Reel (TR)
- Output Isolation：-
- Internal Switch(s)：-
- Voltage - Breakdown：-
- Topology：-
- Voltage - Start Up：-
- Voltage - Supply (Vcc/Vdd)：-
- Duty Cycle：-
- Frequency - Switching：-
- Fault Protection：-
- Control Features：-
- Operating Temperature：-
- Package / Case：-
- Supplier Device Package：-
- Mounting Type：-
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The INN3949CQ0501-TL is an AC/DC converter from the InnoSwitch3-AQ series, designed for automotive applications. It integrates a 1700V SiC power switch with primary-side regulation and FluxLink feedback technology. The device supports flyback topology with an input voltage range of 40V to 1200V DC and delivers up to 60W output power. Operating temperatures range from -40°C to +150°C, with a switching frequency between 25kHz and 95kHz.
Feature Summary
- Integrates a 1700V Silicon Carbide (SiC) power switch for high-voltage operation
- Utilizes FluxLink magnetic coupling for isolated feedback without optocouplers
- Includes built-in protection features such as over-temperature shutdown and current limiting
Applications
- Auxiliary power supplies for 800V electric vehicle traction inverters
- Emergency power systems in high-voltage battery architectures
- Gate driver biasing for SiC MOSFETs in EV drivetrains
Procurement Notes
Verify the specific suffix '0501' against official Power Integrations documentation to confirm pinout or electrical variations. Confirm AEC-Q100 qualification status for the specific reel variant. Ensure compatibility with InSOP-T28G packaging requirements during assembly planning.
Selection Notes
Select this component for designs requiring high efficiency at elevated temperatures and wide input voltage ranges. The integrated SiC switch reduces external component count compared to discrete solutions. Verify that the 1700V rating aligns with the system's peak transient voltage requirements.
Part Context
This part belongs to the InnoSwitch3-AQ family, which is specifically qualified for automotive environments. The series combines primary-side control with secondary sensing via magnetic coupling, simplifying design while maintaining safety isolation standards required for electric vehicle power electronics.
Replacement Considerations
INN3949FQ502-TL and INN3949FQ-MR are similar 60W variants within the same series. Verify package compatibility and specific electrical parameter differences before substitution.
