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OPT4001-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1 (PicoStar™ variant): –40°C to 125°C, TA
- Temperature grade 2 (USON variant): –40°C to 105°C, TA
- Functional Safety-Capable
- High-precision, high-speed light-to-digital conversion over high-speed I2C interface
- Precision optical filtering closely matches human eye with excellent near infrared (NIR) rejection
- Semi-logarithmic output:
- Nine binary logarithmic full-scale light range
- Highly linear response within each range
- Built-in automatic full-scale light range selection logic, which switches measurement range based on input light condition for best possible resolution at all times
- 28 bits of effective dynamic range:
- 312.5µlux to 83klux for PicoStar™ package variant
- 400µlux to 107klux for USON package variant
- 12 configurable conversion times:
- 600µs to 800ms for high-speed and high-precision applications
- External pin interrupt for hardware-synchronized trigger and interrupts (only on USON package variant)
- Error correction code features for improved reliability in automotive use cases
- Internal FIFO for output registers with I2C burst readout
- Low operating current: 30µA
- Ultra-low power standby: 2µA
- Wide power-supply range: 1.6V to 3.6V
- 5.5V tolerant I/O pins
- Selectable I2C address
- Small-form factor:
- PicoStar™: 0.84mm x 1.05mm x 0.226mm
- USON: 2mm x 2mm x 0.65mm
The OPT4001-Q1 is a light-to-digital sensor (single-chip lux meter) that measures the intensity of visible light. To measure accurate light intensity, a specially engineered filter on the device tightly matches the photopic response of the human eye and rejects the near-infrared component from common light sources. The output of the OPT4001-Q1 is semi-logarithmic with nine binary logarithmic full-scale light ranges along with a highly linear response within each range, bringing capability to measure from 312.5µlux to 83klux for the PicoStar™ variant and 400µlux to 107klux for the USON variant. This capability allows the light sensor to have a 28-bit effective dynamic range. The built-in automatic range-selection logic dynamically adjusts the device gain settings based on the light level, providing the best possible resolution in all conditions without user input.
The engineered optical filter on the OPT4001-Q1 provides strong near infrared (NIR) rejection. This filter aids in maintaining high accuracy when the sensor is placed under dark glass for aesthetic reasons.
The OPT4001-Q1 is designed for systems that require light level detection to enhance user experience and typically replaces low-accuracy photodiodes, photoresistors, and other ambient light sensors with underwhelming human eye matching and near-infrared rejection.
The OPT4001-Q1 can be configured to operate with light conversion times from 600µs to 800ms in 12 steps, providing system flexibility based on application need. Conversion time includes the light integration time and analog-to-digital (ADC) conversion time. Measurement resolution is determined by a combination of light intensity and integration time, effectively providing the capability to measure down to 312.5µlux of light intensity changes for the PicoStar™ variant and 400µlux of light intensity changes for the USON variant.
Digital operation is flexible for system integration. Measurements can be either continuous or triggered in one shot with register writes or a hardware pin (hardware pin only available on USON variant). The device features a threshold detection logic, which allows the processor to sleep while the sensor waits for an appropriate wake-up event to report through the interrupt pin (only on USON variant).
The sensor reports a digital output representing the light level over an I2C- and SMBus-compatible, two-wire serial interface. An internal first-in-first-out (FIFO) on the output registers is available to read out measurements from the sensor at a slower pace while still preserving all data captured by the device. The OPT4001-Q1 also supports I2C burst mode, thus helping the host read data from the FIFO with minimal I2C overhead.
The low power consumption and low power-supply voltage capability of the OPT4001-Q1 helps enhance the battery life of battery-powered systems.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | OPT4001-Q1 Automotive High-Speed, High-Precision, Digital Ambient Light Sensor datasheet (Rev. C) | PDF | HTML | 2024年 6月 13日 |
| Application brief | Advantages of Implementing a Light Sensor in TI's Ultra Thin PicoStar Package | PDF | HTML | 2024年 6月 27日 | |
| Application brief | How to Select a Light Sensor for Your Application (Rev. C) | PDF | HTML | 2024年 1月 19日 |
設計與開發
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OPT4001DNPQ1EVM — 適用於採用 DNP 封裝的車用高速高精密度數位 ALS 的 OPT4001 評估模組。
OPT4001DNPQ1EVM 是一個用於評估 OPT4001-Q1、車輛高速、高精密度、數位環境光感測器的平台，可在各種照明條件下及各種覆蓋材料的後方使用。OPT4001DNPQ1EVM 由兩個 PCB 組成。第一個是 OPTMBEVM 電路板，其中包含可與執行 GUI 評估軟體的電腦通訊的 USB 介面、插入試樣卡的插座，以及作為 PC 與插入插座之裝置間橋接器的 MSP430 微處理器。此電路板也為光源感測器供電，並在光線感測器和電腦之間傳送和接收適當的數位訊號。第二個電路板為 OPT4001-Q1 試樣卡，其包含 OPT4001-Q1 (...)
OPT4001EVM — 適用高速、高精確度、數位環境光感測器 (ALS) 的 OPT4001 評估模組
The OPT4001 evaluation module (EVM) is a platform for evaluating the OPT4001 under various conditions. OPT4001 is a light-to-digital sensor that measures the intensity of visible light. The spectral response of the sensor tightly matches the photopic response of the human eye.
OPT4001EVM consists (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| PICOSTAR (YMN) | 4 | Ultra Librarian |
| USON (DNP) | 6 | 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。