DAC43902-Q1 Series
Automotive 8-bit 2-channel smart DAC with PWM for turn indicator and fade-in fade-out light control
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Automotive 8-bit 2-channel smart DAC with PWM for turn indicator and fade-in fade-out light control
| Part | Voltage - Supply, Analog [Max] | Voltage - Supply, Analog [Min] | Grade | Architecture | Settling Time | Number of Bits | Package / Case | Reference Type | Mounting Type | Differential Output | Supplier Device Package | Operating Temperature [Max] | Operating Temperature [Min] | Data Interface | Qualification | Voltage - Supply, Digital [Max] | Voltage - Supply, Digital [Min] | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments DAC43902RTERQ1 | 5.5 V | 1.7 V | Automotive | String DAC | 10 µs | 8 | 16-WFQFN Exposed Pad | External, Internal, Supply | Surface Mount | 16-WQFN (3x3) | 125 °C | -40 °C | I2C, SPI | AEC-Q100 | 5.5 V | 1.7 V | Voltage - Buffered |
Key Features
• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T APulse-width modulation (PWM) output on digital pins (218 Hz to 48.8 kHz)Logarithmic dimmingLED fade-in fade-out with GPIO controlSequential turn indicator animationProgrammable comparators and DACs configured as GPIOAutomatically detects I 2C or SPI1.62-V V IH with V DD = 5.5 VVREF/MODE pin to select between programming and standalone modesUser-programmable nonvolatile memory (NVM)Internal, external or power supply as referenceWide operating rangePower supply: 1.8 V to 5.5 VTemperature range: –40˚C to +125˚CTiny package: 16-pin WQFN (3 mm × 3 mm)AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T APulse-width modulation (PWM) output on digital pins (218 Hz to 48.8 kHz)Logarithmic dimmingLED fade-in fade-out with GPIO controlSequential turn indicator animationProgrammable comparators and DACs configured as GPIOAutomatically detects I 2C or SPI1.62-V V IH with V DD = 5.5 VVREF/MODE pin to select between programming and standalone modesUser-programmable nonvolatile memory (NVM)Internal, external or power supply as referenceWide operating rangePower supply: 1.8 V to 5.5 VTemperature range: –40˚C to +125˚CTiny package: 16-pin WQFN (3 mm × 3 mm)
Description
AI
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.