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AFE53902-Q1

ACTIVE

Automotive 10-bit 2-channel smart DAC with ADC and PWM out for multislope thermal foldback control

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Data sheet

AFE53902-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 10 Number of DAC channels 2 Interface type I2C, SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 20 Reference type Ext, Int Architecture String Rating Automotive Features (x1) PWM, EEPROM, Integrated ADC, Smart DAC Sample/update rate (Msps) 0.025 Power consumption (typ) (mW) 0.4 Operating temperature range (°C) -40 to 125 Product type Smart DAC
Resolution (Bits) 10 Number of DAC channels 2 Interface type I2C, SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 20 Reference type Ext, Int Architecture String Rating Automotive Features (x1) PWM, EEPROM, Integrated ADC, Smart DAC Sample/update rate (Msps) 0.025 Power consumption (typ) (mW) 0.4 Operating temperature range (°C) -40 to 125 Product type Smart DAC
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Multislope thermal foldback
    • 10-bit analog-to-digital converter (ADC) input
    • Digital-to-analog converter (DAC) output
      • 10-bit ( AFE53902-Q1)
      • 8-bit ( AFE43902-Q1)
    • Pulse Width Modulation (PWM) output with 7‑bit duty cycle
    • Standalone operation from nonvolatile memory (NVM)
    • Look-up table (LUT) based parameter configuration
    • Piecewise-linearizer for thermistor
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or VDD reference
  • 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, T A
  • Multislope thermal foldback
    • 10-bit analog-to-digital converter (ADC) input
    • Digital-to-analog converter (DAC) output
      • 10-bit ( AFE53902-Q1)
      • 8-bit ( AFE43902-Q1)
    • Pulse Width Modulation (PWM) output with 7‑bit duty cycle
    • Standalone operation from nonvolatile memory (NVM)
    • Look-up table (LUT) based parameter configuration
    • Piecewise-linearizer for thermistor
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or VDD reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)

The 10-bit AFE53902-Q1 and 8-bit AFE43902-Q1 devices ( AFEx3902-Q1) are dual-channel, smart analog front ends (AFE) targeted for multislope thermal foldback of LED lighting. The output of LED lights reduce with an increase in temperature. Multislope thermal foldback helps maintain a steady light output from LEDs, irrespective of temperature change, while limiting the LED temperature to programmed thresholds.

The AFEx3902-Q1 have an ADC for temperature input and a DAC or PWM generator as an output. These devices have an integrated state machine that is preprogrammed as a multislope thermal foldback controller. The AFEx3902-Q1 are an excellent choice for thermal foldback of automotive rear lights and headlights, as well as horticulture lights. The AFEx3902-Q1 work independently from the parameters programed into the NVM, and thus enable these smart AFEs for processor-less applications and design reuse. These devices also automatically detect I 2C or SPI, and have an internal reference.

The 10-bit AFE53902-Q1 and 8-bit AFE43902-Q1 devices ( AFEx3902-Q1) are dual-channel, smart analog front ends (AFE) targeted for multislope thermal foldback of LED lighting. The output of LED lights reduce with an increase in temperature. Multislope thermal foldback helps maintain a steady light output from LEDs, irrespective of temperature change, while limiting the LED temperature to programmed thresholds.

The AFEx3902-Q1 have an ADC for temperature input and a DAC or PWM generator as an output. These devices have an integrated state machine that is preprogrammed as a multislope thermal foldback controller. The AFEx3902-Q1 are an excellent choice for thermal foldback of automotive rear lights and headlights, as well as horticulture lights. The AFEx3902-Q1 work independently from the parameters programed into the NVM, and thus enable these smart AFEs for processor-less applications and design reuse. These devices also automatically detect I 2C or SPI, and have an internal reference.
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AFE43902-Q1 ACTIVE Automotive two-channel 8-bit smart DAC with multislope thermal foldback control with built-in ADC 8-bit device

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AFEx3902-Q1 Smart Analog Front End (AFE) for Multislope Thermal Foldback and LUT-Based Control With I2C and SPI datasheet PDF | HTML Jun 29, 2023
Product overview Smart DAC Product Selection Guide PDF | HTML Jul 1, 2024

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Evaluation board

AFE539A4EVM — AFE539A4 evaluation module

The AFE539A4EVM is an easy-to-use platform to evaluate the functionality and performance of the AFE539A4. The AFE539A4EVM has an on-board controller for easy interface with the GUI. The AFE539A4EVM hardware is configured for the device most commont application- thermoelectric cooling control. 

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SMART-DAC-EVM-GUI — Smart DAC and smart AFE evaluation module software

This GUI interfaces with the on board controller of the smart DAC and smart AFE EVM ecosystem.
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ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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WQFN (RTE) 16 Ultra Librarian
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