关键参数速览
- 电源电压 VCC
- 3.63
- 工作温度 TA
- 4.4. Characteristics
产品特点 Features
- State Machine
- Below diagram is the main state machine of LTR-381RGB-01.
- During the CS/ALS Operation, CS/ALS measurements can be activated by setting the CS_ALS_Enable bit to
- Part No. : LTR-381RGB-01
- BNS-OD-FC002/A4
- OPTICAL SENSOR
- LTR-381RGB-01
- ALS/CS Interrupt
- The ALS/CS interrupt is enabled by Bit 2 (ALS INT Pin Enabled) of INT_CFG register (0x19). The
- ALS/CS interrupt source can be any of the four CS channels (R, G, B and IR). The source is selected by Bit 4 and 5 (ALS INT Select) of INT_CFG register.
- The INT is set when the data of the selected interrupt source is above the upper or below the lower threshold for a specified number of consecutive measurements set in ALS/CS Persist in INT_PST register (0x1A).
- The Interrupt signal is also stored in MAIN_STATUS register (0x07) as flag bit in Bit 4 (ALS/CS INT
- Status). This status flag bit is cleared by reading the MAIN_STATUS register. A cleared flag will also clear the interrupt signal on the INT pin.
- 8 Pseudo Codes
- CS_IR_Data =(Data2<<16)| (Data1 <<
- CS_DATA_GREEN Registers (Read
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 参数 | 符号 | 最小 | 最大 | 单位 |
|---|---|---|---|---|
| Supply Voltage | VDD | 3.63 | V | |
| Digital Voltage Range | SCL, SDA, INT | -0.5 | 3.63 | V |
| Storage Temperature | T | -40 | 95 | C |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 参数 | 最小 | 典型 | 最大 | 单位 | 条件 |
|---|---|---|---|---|---|
| Default duty cycle, VDD=3.0V, Gain | |||||
| ALS Active Supply | Current | 120 | uA | 3x | |
| CS Active Supply | Current | 120 | uA | Default duty cycle, VDD=3.0V | |
| Standby Current | 1.2 | uA | Standby Mode | ||
| Wakeup Time from | Standby | 0.5 | 10 | ms | |
| Part No. : LTR-381RGB-01 | |||||
| BNS-OD-FC002/A4 | |||||
| LTR-381RGB-01 | |||||
| 4.4. Characteristics | Ambient Light/Color | Sensor | (VDD | = 3.0V, | Ta=25°C, unless otherwise |
| Programmable for 16, 17, 18, 19, 20 | |||||
| ALS/CS Resolution | 16 | 20 | Bit | ||
| Dark Level Count | 0 | 5 | Count | 0 Lux, 18-bit resolution | |
| Lux Accuracy | -10 | +10 | % | Direct illumination | |
| Color temperature | Accuracy -5 | +5 | % | ||
| 50/60 Hz flicker noise | error -5 | +5 | % | ||
| Temperature Dependency | -0.25 | +0.25 | %/ C | At 100 Lux At 100 Lux, | |
| Voltage Dependency | -5 | +5 | % | ||
| Integration time | 25 | 400 | ms | With 50/60Hz Rejection | |
| (VDD = 3.0V, | Ta=25°C, Default | power-up | settings, unless | otherwise | noted) |