DAC539G2-Q1
Automotive, 10-bit look-up-table based GPI-to-PWM converter for a single-wire error communication
DAC539G2-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T A
- Triple general-purpose inputs
- PWM output using sawtooth or triangular waveform
- 10-bit GPI-to-voltage output
- 1 LSB DNL
- Automatically detected I 2C and SPI
- 1.62-V V IH with V DD = 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 I 2C or SPI and stored in the NVM. The GPIs are multiplexed with the I 2C 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 I 2C 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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Technical documentation
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 (Rev. A) | PDF | HTML | 27 Sep 2023 |
Product overview | Smart DAC Product Selection Guide | PDF | HTML | 01 Jul 2024 | |
Functional safety information | DAC539G2-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 27 Jul 2023 |
Design & development
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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (RTE) | 16 | Ultra Librarian |
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