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DAC43901-Q1

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Automotive one-channel 8-bit smart DAC with turn-indicator animation and fade-in fade-out control

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Data sheet

DAC43901-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 8 Number of DAC channels 1 Interface type I2C, SPI Output type Buffered Voltage Settling time (µs) 20 Features (x1) PWM, Small Size, Smart DAC Reference type Ext, Int Architecture String Rating Automotive Operating temperature range (°C) -40 to 125
Resolution (Bits) 8 Number of DAC channels 1 Interface type I2C, SPI Output type Buffered Voltage Settling time (µs) 20 Features (x1) PWM, Small Size, Smart DAC Reference type Ext, Int Architecture String 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, T A
  • Pulse-width modulation (PWM) output on digital pins (218 Hz to 48.8 kHz)
  • Logarithmic dimming
  • LED fade-in fade-out with GPIO control
  • Sequential turn indicator animation
  • Programmable comparators and DACs configured as GPIO
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin to select between programming and standalone modes
  • User-programmable nonvolatile memory (NVM)
  • Internal, external or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Pulse-width modulation (PWM) output on digital pins (218 Hz to 48.8 kHz)
  • Logarithmic dimming
  • LED fade-in fade-out with GPIO control
  • Sequential turn indicator animation
  • Programmable comparators and DACs configured as GPIO
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin to select between programming and standalone modes
  • User-programmable nonvolatile memory (NVM)
  • Internal, external or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)

The DAC43901-Q1 and DAC43902-Q1 ( DAC4390x-Q1) are a family of automotive, 8-bit smart DACs with dual and quad PWM outputs. The DAC43901-Q1 provides two PWM outputs, and the DAC43902-Q1 provides four PWM outputs. The DAC channels also act as trigger inputs or outputs. The DAC4390x-Q1 provides a preconfigured state machine that logic generates logarithmic dimming with configurable timings. The PWM-based logarithmic dimming is applicable in logarithmic fade-in and fade-out applications in automotive interior and exterior lighting. The DAC4390x-Q1 also support sequential animation applicable for automotive turn-indicator lights. These devices provide NVM for storing the configurations. These smart DACs function without the need for a processor ( processor-less operation) using GPIOs and NVM.

These devices automatically detect I 2C or SPI and have an internal reference. The feature set combined with the tiny package and low power make the smart DACs an excellent choice for applications in automotive light animation.

The DAC43901-Q1 and DAC43902-Q1 ( DAC4390x-Q1) are a family of automotive, 8-bit smart DACs with dual and quad PWM outputs. The DAC43901-Q1 provides two PWM outputs, and the DAC43902-Q1 provides four PWM outputs. The DAC channels also act as trigger inputs or outputs. The DAC4390x-Q1 provides a preconfigured state machine that logic generates logarithmic dimming with configurable timings. The PWM-based logarithmic dimming is applicable in logarithmic fade-in and fade-out applications in automotive interior and exterior lighting. The DAC4390x-Q1 also support sequential animation applicable for automotive turn-indicator lights. These devices provide NVM for storing the configurations. These smart DACs function without the need for a processor ( processor-less operation) using GPIOs and NVM.

These devices automatically detect I 2C or SPI and have an internal reference. The feature set combined with the tiny package and low power make the smart DACs an excellent choice for applications in automotive light animation.
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* Data sheet DAC4390x-Q1 Automotive Smart DACs for Logarithmic Fade-In Fade-Out and Sequential Turn Animation With I2C, SPI, GPIO, and PWM Interfaces datasheet PDF | HTML 28 Sep 2023
Certificate DAC43901EVM EU RoHS Declaration of Conformity (DoC) 13 Sep 2021

Design & development

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Products
Precision DACs (≤10 MSPS)
AFE432A3W — 8-bit 300-mA current-source DAC with 10-bit SAR ADC, VDAC, NVM and GPI AFE43902-Q1 — Automotive two-channel 8-bit smart DAC with multislope thermal foldback control with built-in ADC AFE439A2 — 8-bit 2-channel smart DAC with PWM output, ADC, PI loop and EEPROM for H-Bridge based TEC control AFE532A3W — 10-bit 300-mA current-source DAC with 10-bit SAR ADC, 10-bit VDAC, NVM and GPI AFE53902-Q1 — Automotive 10-bit 2-channel smart DAC with ADC and PWM out for multislope thermal foldback control AFE539A4 — 10-bit 4-channel smart DAC with voltage output, ADC, EEPROM and PI loop for DC/DC based TEC control AFE539F1-Q1 — Automotive single-channel ten-bit smart AFE with PWM active discharge control AFE639D2 — Two-channel 12-bit smart analog front end (AFE) with TEC control with built-in ADC and DAC DAC43204 — 8-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator DAC43901-Q1 — Automotive one-channel 8-bit smart DAC with turn-indicator animation and fade-in fade-out control DAC43902-Q1 — Automotive 8-bit 2-channel smart DAC with PWM for turn indicator and fade-in fade-out light control DAC53001 — 10-bit, 1-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC53002 — 10-bit, 2-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC53004 — 10-bit, 4-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC53004W — 10-bit, 4-channel low-power VOUT and IOUT smart DAC with Hi-Z, EEPROM, waveform generator in WCSP DAC53202 — 10-bit 2-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator DAC53204 — 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator DAC53204-Q1 — Automotive, 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC53204W — 10-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator in WCSP DAC532A3W — 10-bit 300-mA current-source DAC with 10-bit voltage-output DAC, supervisor comparator, NVM and GPI DAC539E4W — Four-channel 10-bit smart analog front end (AFE) with IF-THEN-ELSE control in WCSP package DAC539G2-Q1 — Automotive, 10-bit look-up-table based GPI-to-PWM converter for a single-wire error communication DAC63001 — 12-bit, 1-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC63002 — 12-bit, 2-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC63004 — 12-bit, 4-channel low-power voltage/current output smart DAC with Hi-Z, EEPROM, waveform generator DAC63004W — Ultra-low-power four-channel 12-bit smart DAC in wafer chip scale package with I²C, SPI and PWM DAC63204 — 12-bit 4-channel voltage/current output smart DAC with Hi-Z, EEPROM and waveform generator
Hardware development
Evaluation board
DAC63204EVM — DAC63204 evaluation module for four-channel, 12-bit, VOUT and IOUT smart DAC AFE532A3WEVM — AFE532A3W evaluation module for 8-bit and 10-bit 300-mA current-source DAC AFE539A4EVM — AFE539A4 evaluation module DAC63004WCSP-EVM — DAC63004W evaluation module for four-channel 12-bit smart DAC in wafer chip scale package (WCSP) SMARTDAC-DIY-EVM — A do-it-yourself evaluation module for smart DAC devices
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