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DAC539G2-Q1

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Automotive, two-channel 10-bit smart DAC for GPI-to-PWM conversion with auto-detected I²C or

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Data sheet

DAC539G2-Q1

ACTIVE
Data sheet Order now

Product details

Number of DAC channels 2 Interface type SPI Features (x3) PWM, Small Size, Smart DAC Rating Automotive Operating temperature range (°C) -40 to 125
Number of DAC channels 2 Interface type SPI Features (x3) PWM, Small Size, Smart DAC Rating Automotive Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Triple general-purpose inputs
  • PWM output using sawtooth or triangular waveform
  • 10-bit GPI-to-voltage output
    • 1 LSB DNL
  • Automatically detected I2C and SPI
    • 1.62-V VIH with VDD = 5.5 V
  • MODE pin to select between programming and standalone modes
  • User-programmable nonvolatile memory (NVM)
  • Internal, external, and VDD reference
  • Option for PWM-frequency-error correction
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Triple general-purpose inputs
  • PWM output using sawtooth or triangular waveform
  • 10-bit GPI-to-voltage output
    • 1 LSB DNL
  • Automatically detected I2C and SPI
    • 1.62-V VIH with VDD = 5.5 V
  • MODE pin to select between programming and standalone modes
  • User-programmable nonvolatile memory (NVM)
  • Internal, external, and VDD reference
  • Option for PWM-frequency-error correction
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)

The DAC539G2-Q1 is an application-specific, look-up table (LUT) based GPI-to-PWM converter. This device has a 10-bit GPI-to-voltage output converter and a voltage-to-PWM converter. Both these circuits can be externally connected to create a GPI-to-PWM converter. Three GPIs are mapped to eight 10-bit digital codes that represent the voltage output. There is a programmable delay at the GPIs for eliminating glitches on these inputs. The look-up table values are programmed using I2C or SPI and stored in the NVM. The GPIs are multiplexed with the I2C and SPI. The voltage-to-PWM converter uses a comparator with one input as a programmable sawtooth or triangle waveform and the other input as an external voltage input.

This device automatically detects I2C and SPI and has an internal reference. The DAC539G2-Q1 is an excellent choice for fault communication in automotive stop and turn lights and similar industrial applications.

The DAC539G2-Q1 is an application-specific, look-up table (LUT) based GPI-to-PWM converter. This device has a 10-bit GPI-to-voltage output converter and a voltage-to-PWM converter. Both these circuits can be externally connected to create a GPI-to-PWM converter. Three GPIs are mapped to eight 10-bit digital codes that represent the voltage output. There is a programmable delay at the GPIs for eliminating glitches on these inputs. The look-up table values are programmed using I2C or SPI and stored in the NVM. The GPIs are multiplexed with the I2C and SPI. The voltage-to-PWM converter uses a comparator with one input as a programmable sawtooth or triangle waveform and the other input as an external voltage input.

This device automatically detects I2C and SPI and has an internal reference. The DAC539G2-Q1 is an excellent choice for fault communication in automotive stop and turn lights and similar industrial applications.

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Type Title Date
* Data sheet DAC539G2-Q1 Automotive, 10-Bit Smart DAC for General-Purpose Input (GPI) to Pulse-Width-Modulation (PWM) Conversion With Auto-Detected I2C or SPI datasheet PDF | HTML 31 Jan 2023
Functional safety information DAC539G2-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 27 Jul 2023

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