AFE539A4
- Integrated proportional-integral (PI) control
- Standalone operation from nonvolatile memory (NVM)
- Programmable proportional and integral gain
- Comparator input for output clamping
- Programmable min, max, and common-mode values for output
- Programmable loop-phase inversion
- AFE639D2
- I 2C controller for external digital temperature sensor interface
- 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
- AFE539A4
- 10-bit ADC input: 2-LSB INL, 1-LSB DNL
- 10-bit DAC output: 1-LSB INL and DNL
- AFE439A2
- 8-bit ADC input: 1-LSB INL and DNL
- 7-bit duty-cycle PWM output
- Programmable comparator for fault management
- High impedance output on DAC channel when VDD is off
- 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 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 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AFEx39xx 12-Bit, 10-Bit, and 8-Bit Smart Analog Front Ends for TEC Control Using Voltage and PWM Output datasheet (Rev. A) | PDF | HTML | 2023年 7月 3日 |
| Product overview | Smart DAC Product Selection Guide | PDF | HTML | 2024年 7月 1日 | |
| Circuit design | Closed-Loop TEC Control Circuit Using a Voltage-Output Smart AFE and DC/DC Conv. | PDF | HTML | 2023年 5月 2日 | |
| Application note | A Basic Guide to I2C | PDF | HTML | 2022年 11月 8日 | |
| Technical article | How smart AFEs offer an integrated analog solution for thermoelectric cooling cont | PDF | HTML | 2022年 1月 4日 | |
| Technical article | What is a smart AFE? | PDF | HTML | 2021年 11月 18日 |
設計與開發
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AFE539A4EVM — AFE539A4 評估模組
AFE539A4EVM 是簡單易用的平台,可用於評估 AFE539A4 的功能性與性能。AFE539A4EVM 具有板載控制器,容易與 GUI 介接。AFE539A4EVM 硬體專為裝置最常用的熱電冷卻控制而配置。
ANALOG-ENGINEER-CALC — 類比工程師計算機
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。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
支援產品和硬體
產品
串聯電壓參考
精確 ADC
生物感測 AFE
整合式精密 ADC 與 DAC
高速 ADC (≥10 MSPS)
精密 DAC (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
TINA-TI — 基於 SPICE 的類比模擬程式
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。