The Silicon Labs Si1141/42/43 combines an active optical reflectance proximity detector with an ambient light sensor and an infrared LED into a single 10-Pin QFN package. Their dual port operation enables reliable proximity detection for moving as well as stationary objects.
The Si1141 has 1 LED driver with an Integrated IR LED - RS 8920016.
The Si1142 has 2 LED drivers with and integrated IR LED - RS 8920025.
The Si1143 has 3 LED drivers with and integrated IR LED - RS 8920028.
With the Si1143, locate three infrared LEDs in an L-shaped configuration to enable triangulation of an object and in turn, via host software, creating a gesture based user interface.
These modules have photodiodes which can be used to measure both visible and infrared light. Detect levels as low as 6 lux.
- 可调接近检测，范围为 1 cm 至超过 50 cm
- 多达 3 个独立 LED 驱动器
- 每个驱动器具有 15 种电流设置，范围为 5.6 mA 至 360 mA
- 25.6 μs LED 驱动器脉冲宽度
- 高抗电磁干扰，不带屏蔽包装
- 低功耗
| 属性 | 数值 |
|---|---|
| 传感器类型 | 接近传感器 |
| 感应距离 | 1 to 50cm |
| 开关模式 | 数字 |
| 输出类型 | 漏极开路 |
| 安装类型 | 表面贴装 |
| 封装类型 | QFN |
| 引脚数目 | 10 |
| 尺寸 | 4.9 x 2.85 x 1.2mm |
| 高度 | 1.2mm |
| 长度 | 4.9mm |
