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Home » NEWEST Products » New by Manufacturer » Texas Instruments » SN6501 Transformer Driver - TI
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Texas Instruments SN6501 Transformer Driver for Isolated Power Supplies

Texas Instruments SN6501 Transformer Driver
for Isolated Power Supplies

Texas Instruments SN6501 Transformer Driver is a monolithic oscillator/power-driver designed for small form factor, isolated power supplies in isolated interface applications. TI SN6501 drives a low-profile, center-tapped transformer primary from a 3.3V or 5V DC power supply. The secondary can be wound to provide any isolated voltage based on transformer turns ratio. SN6501 Transformer Driver consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive the ground referenced N-channel power switches. The internal logic ensures break-before-make action between the two switches. This TI device is specified for operation at temperatures from -40°C to 125°C.


Features
  • Push-Pull Driver for Small Transformers
  • Single 3.3V or 5V Supply
  • High Primary-side Current Drive
    • 5V Supply: 350mA (max)
    • 3.3V Supply: 150mA (max)
  • Low Ripple on Rectified Output Permits Small Output Capacitors
  • Small 5-pin SOT23 Package

Applications
  • Isolated Interface Power Supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN
  • Industrial Automation
  • Process Control
  • Medical Equipment

SN6501-MULTIXFMR0EVM Transformer Driver Evaluation Module

Texas Instruments SN6501-MULTIXFMR0EVM Transformer Driver Evaluation Module (EVM) is designed to evaluate the SN6501 Transformer Driver in an Isolated Power Supply. It is configured with five independent circuits providing options to operate using either a +3.3Vdc or +5.0Vdc input. It also provides one of five isolated 3.3Vdc +5.0Vdc outputs. Two of the circuits include LDO's to regulate the output. The five configurations include 3Vdc-to-3Vdc with no LDO, 5Vdc-to-5Vdc with no LDO, 3Vdc-to-5Vdc with no LDO, 3Vdc-to-5Vdc with and LDO, and a 3Vdc/5Vdc-to-3Vdc/5Vdc with a selectable LDO output.

Features
  • Push-Pull Driver for Small Transformers
  • Single 3.3V or 5V Supply
  • High Primary-side Current Drive
  • Low Ripple on Rectified Output
Texas Instruments SN6501-MULTIXFMR0EVM Transformer Driver Evaluation Module (EVM)

Texas Instruments SN6501-MULTIXFMR0EVM Transformer Driver Evaluation Module (EVM) View Product Details
Additional Resources
User's Guide User's Guide

  • Texas Instruments