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Texas Instruments DACx3401/DACx3401-Q1 Smart DACs

Texas Instruments DACx3401/DACx3401-Q1 Smart Digital-to-Analog Converters (DACs) are a pin-compatible family of automotive, buffered, voltage-output, smart digital-to-analog converters (DACs). These devices consume very low power and are available in a tiny 8-pin WSON package. The DAC53401/DAC53401-Q1 is a 10-bit device, while the DAC43401/DAC43401-Q1 is an 8-bit device. The feature set, the small package, and low power make the DACx3401/DACx3401-Q1 an excellent choice for applications such as LED and general-purpose bias point generation, power supply control, and PWM signal generation.

The Texas Instruments DACx3401/DACx3401-Q1 has non-volatile memory (NVM), an internal reference, and a PMBus-compatible I2C interface. The DACx3401/DACx3401-Q1 operates with either an internal reference or the power supply as a reference. It also provides a full-scale output of 1.8V to 5.5V. The devices communicate through the I2C interface. The devices support I2C standard mode, fast mode, and fast mode plus. The DACx3401/DACx3401-Q1 are smart DAC devices because of the advanced integrated features. The force-sense output, PWM output, and NVM capabilities of these smart DACs enable system performance and control without software.

Features

  • AEC-Q100 qualified for automotive applications
    • –40°C to +125°C, TA temperature grade 1
  • 1 LSB INL and DNL (10-bit and 8-bit)
  • Wide operating range
    • 1.8V to 5.5V power supply 
  • PMBus™ compatible I2C interface
    • Standard, fast, and fast mode plus
    • Four slave address options configured by A0 pin
    • 1.62V VIH with VDD = 5.5V
  • User-programmable non-volatile memory (NVM, EEPROM)
    • Save and recall all register settings
  • Programmable waveform generation (square, ramp, and sawtooth)
  • Pulse-width modulation (PWM) output using triangular waveform and FB pin
  • Digital slew-rate control
  • Internal reference
  • Very-low power (0.2mA at 1.8V)
  • Flexible startup: High impedance or 10K-GND
  • 8-pin WSON (2mm × 2mm) tiny package

Applications

  • Automotive USB charge
  • Headlight
  • Rear light

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments DACx3401/DACx3401-Q1 Smart DACs

Related Development Tool

Texas Instruments DAC53401EVM Evaluation Module

Platform for evaluating the DAC53401 a single-ch, buffered, low-voltage, DAC in 10-bit resolution

Learn Moreabout Texas Instruments DAC53401EVM Evaluation Module View Productsrelated to Texas Instruments DAC53401EVM Evaluation Module
Published: 2020-11-30 | Updated: 2025-02-27