Low-Power Isolated Loop Power Solution

Summary:

TI's isolated loop power solution is a low-power, easy-to-implement isolated 4-20mA loop solution. This includes a 4-20mA driver with an integrated DAC and a small form factor transformer driver, and the combination of these two devices reduces the cost of ownership for the customer. The DAC161P997 provides a 16-bit DAC, a single-wire interface for traversing the isolation barrier, and high reliability for 4-20mA applications; the SN6501 is designed for a compact isolated power supply with minimal component count.

The main features of the solution:

  • Small form factor transformer driver
  • Provides primary voltage for isolated transformers and enables small form factor, low EMI, high efficiency isolated power paths
  • 4-20mA output driver
  • Integrated 16-bit DAC, single-wire interface for traversing isolation barriers, and high reliability for 4-20mA applications

Featured tools and software

  1. SN6501 – Transformer Driver for Isolated Power
  2. SN6501-MULXFMR Evaluation Board – SN6501 Transformer Driver for Isolated Power Evaluation Module
  3. DAC161P997 – Integrated DAC + 4-20mA Driver with Single-Wire Interface
  4. DAC161P997 Evaluation Board – DAC161P997EVAL

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