SI1153-AB9X-GM Silicon Labs Integrated Circuit (Other) In Stock
SI1153-AB9X-GM is a Silicon Labs ambient light and proximity sensor with digital I2C output, supporting 1.8 V, 2.5 V, and 3.3 V supply voltages in a compact 10-pin LGA package. It integrates configurable IR LED drivers and photodetectors for accurate gesture, proximity, and ambient light sensing. Available from authorized distributors worldwide with fast shipping.
- Manufacturer
- Silicon Labs
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SI1153-AB9X-GM Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Multi-supply operation at 1.8 V, 2.5 V, or 3.3 V enables seamless integration with low-power MCUs and mobile SoCs without voltage translation
- Integrated IR LED driver with programmable current up to 300 mA peak supports proximity detection over distances of several centimeters
- Compact 10-pin LGA module package with digital I2C interface simplifies PCB integration in space-constrained wearable and IoT designs
Applications
SI1153-AB9X-GM is designed for consumer electronics applications including smartphone proximity detection for display auto-off during calls, ambient light sensing for display brightness adjustment, and gesture recognition in wearable devices. Its multi-voltage compatibility and small 10-pin LGA footprint also suit IoT sensor nodes, smart home devices, and industrial human-machine interfaces where low-power ambient and proximity sensing with a digital I2C output is required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How far can SI1153-AB9X-GM detect an object in a proximity sensing application?
SI1153-AB9X-GM supports proximity detection at distances from a few millimeters up to approximately 20 cm depending on the reflectivity of the target object and the configured IR LED drive current. With the programmable IR LED driver set to higher current levels (up to 300 mA peak), the sensor can detect a white card at around 15 to 20 cm, making it suitable for touchless control and object detection in mobile devices and industrial proximity switches.
Which supply voltage should be chosen for SI1153-AB9X-GM in a Bluetooth wearable running a 1.8 V SoC core?
For a wearable design with a 1.8 V Bluetooth SoC, SI1153-AB9X-GM's 1.8 V supply option allows direct power rail sharing without an LDO or level shifter. The I2C interface operates at 1.8 V logic levels, and the sensor's typical supply current is under 500 µA in active sensing mode, making it compatible with the tight power budgets of coin-cell or small LiPo-powered wearable devices.
How does SI1153-AB9X-GM's ambient light channel benefit display brightness control in portable devices?
SI1153-AB9X-GM includes a calibrated ambient light sensing channel with a spectral response tuned to approximate the human eye's photopic response. The digital I2C output reports lux values that the host MCU can use to adjust display backlight intensity, typically scaling brightness from minimum (below 10 lux in dark environments) to maximum (above 10,000 lux in direct sunlight). This dynamic adjustment can reduce display power consumption by 20 to 40 percent in typical mixed indoor and outdoor usage scenarios.
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