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數據轉換器
數位轉類比轉換器 (DAC)
精密 DAC (≤10 MSPS)

AFE43902-Q1

現行

內建 ADC 且具多斜率熱保護控制的車用雙通道 8 位元智慧型 DAC

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產品規格表

AFE43902-Q1

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 8 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) 8 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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AFE53902-Q1 現行 具有 ADC 和用於多斜率熱保護控制之 PWM 輸出的車用 10 位元 2 通道智慧型 DAC 10-bit device

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 AFEx3902-Q1 Smart Analog Front End (AFE) for Multislope Thermal Foldback and LUT-Based Control With I2C and SPI datasheet PDF | HTML 2023/6/29
Product overview Smart DAC Product Selection Guide PDF | HTML 2024/7/1

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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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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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WQFN (RTE) 16 Ultra Librarian
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