SN6501DBVR

The SN6501DBVR from Texas Instruments is a monolithic oscillator and power driver specifically engineered for creating small form-factor, isolated power supplies. This device is ideal for isolated interface applications, driving a low-profile, center-tapped transformer primary from a single 3.3V or 5V DC power supply.

Key electrical characteristics include a primary-side current drive of up to 350 mA at a 5V supply and 150 mA at a 3.3V supply. It operates at a frequency of 410 kHz, contributing to low ripple on the rectified output, which allows for the use of small output capacitors. The operating temperature range is from -40°C to 125°C.

Packaged in a compact 5-pin SOT-23 (DBV) package, the SN6501DBVR is suitable for space-constrained designs. Its internal logic ensures break-before-make action between the two N-channel power switches it drives, enhancing reliability. The secondary voltage can be customized based on the transformer's turns ratio, offering flexibility in design.

This transformer driver is well-suited for applications requiring isolated power, such as in industrial control systems, medical devices, and communication equipment where voltage isolation is critical.