SN6501DBVR Description

The SN6501DBVR is a monolithic oscillator/power driver designed for isolated power supplies in isolated interface applications with a tiny form size. The gadget uses a 3.3-V or 5-V DC power supply to power a low-profile, center-tapped transformer primary. Based on the transformer turns ratio, the secondary can be wound to deliver any isolated voltage. The SN6501DBVR is made up of an oscillator and a gate drive circuit that generates complementary output signals for driving ground-connected N-channel power switches. Between the two switches, the underlying logic ensures break-before-make action. The SN6501DBVR comes in a tiny SOT-23 (5) packaging and can operate at temperatures ranging from –40°C to 125°C.

SN6501DBVR Features

• Single 3.3-V or 5-V supply

• Small 5-Pin SOT-23 Package

• Push-pull driver for small transformers

• High primary-side current drive:

      5-V Supply: 350 mA (Max)

      3.3-V Supply: 150 mA (Max)

• Low ripple on rectified output permits small output capacitors

SN6501DBVR Applications

• Process control

• Medical equipment

• Industrial automation

• Isolated interface power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN