Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Sensors, Transducers > Optical Sensors > Ambient Light, IR, UV Sensors

Silicon Labs SI1153-AB9X-GMR

Name: SI1153-AB9X-GMR
Brand: Silicon Labs
SKU: SI1153-AB9X-GMR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SI1153-AB9X-GMR

Manufacturer:: Silicon Labs

Category:: Ambient Light, IR, UV Sensors

Package:: 10-LLGA

Datasheet:: SI1153-AB9X-GMR.pdf

Description:: SENSOR OPT 940NM AMBIENT 10 LLGA

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,136

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SI1153-AB9X-GMR from Silicon Labs is an ultra-low-power, I²C-compatible ambient light, UV index, and proximity sensor IC with integrated IR LED driver, 190–1100 nm spectral response, ±5° proximity detection angle, and 2.7 V to 3.6 V supply range. It enables touchless gesture control and sunlight-resistant ambient light sensing in battery-powered smart home sensors.

For engineers reviewing the SI1153-AB9X-GMR datasheet, SI1153-AB9X-GMR pinout, SI1153-AB9X-GMR application, or SI1153-AB9X-GMR equivalent, key selection criteria include its 16-bit ADC resolution for ALS/UV, programmable LED drive current up to 200 mA, interrupt-driven event reporting, and factory-calibrated UV index output.

Technical Context

The SI1153-AB9X-GMR integrates a photodiode-based optical front-end with three independent ADC channels (ALS, UV, proximity), a dedicated IR LED driver with current control and timing logic, and an on-chip I²C controller supporting standard/fast-mode speeds up to 400 kHz. Its proximity channel uses synchronous demodulation to reject ambient IR interference.

It operates with a 32 kHz internal oscillator for low-power timing, supports hardware interrupts via the INT pin for motion-triggered wake-up, and includes internal temperature compensation for UV index accuracy across –40°C to +85°C ambient range.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.7 V to 3.6 V - compatible with single-cell Li-ion or 3.3 V system rails without level-shifting.
ALS Resolution	16-bit - enables high-dynamic-range ambient light measurement from 0.0125 lux to 102.4 klux.
UV Index Output	Factory-calibrated digital UV index - eliminates need for external calibration or lookup tables in firmware.
Proximity Detection	Up to 50 cm range with 200 mA LED drive - supports reliable hand-gesture recognition through glass or plastic covers.
I²C Interface	Standard/Fast-mode (100/400 kHz) - interoperable with most microcontrollers without custom timing adjustments.
Operating Temp	–40°C to +85°C - qualified for indoor/outdoor smart home and industrial enclosure environments.

Pinout & Package

SI1153-AB9X-GMR is housed in a 10-pin QFN package (2 mm × 2 mm × 0.55 mm, 0.4 mm pitch) with wettable flank terminations for automated optical inspection (AOI).

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power supply input	Connects to 2.7–3.6 V rail; requires local 1 µF ceramic decoupling capacitor.
GND	Ground reference	System ground plane connection; must be low-impedance path shared with LED return.
SCL	I²C clock input	Open-drain, pulled up externally; supports 100/400 kHz timing per I²C specification.
SDA	I²C data bidirectional	Open-drain, pulled up externally; used for register read/write and interrupt status polling.
INT	Interrupt output	Active-low, open-drain signal indicating ALS/UV/proximity event completion or threshold crossing.
LED1	IR LED anode driver	Drives external IR LED with programmable current (0–200 mA); sink capability only.
LED2	Second IR LED anode driver	Independent 0–200 mA drive channel for dual-LED or differential proximity configurations.
OUT	GPIO output	Configurable as push-pull or open-drain; usable for status indication or external trigger signaling.
EN	Enable input	Active-high enable; pulls device into deep sleep (<1 µA) when logic low.
NC	No connect	Internally unconnected; must remain floating or tied to GND per layout guidelines.

Key Features

Feature	Design Value
Integrated IR LED drivers	Two independent 200 mA constant-current sinks eliminate need for external LED driver ICs or current-limiting resistors.
Factory-calibrated UV index	Delivers accurate UV index output (0–15 scale) without host MCU calibration routines or sensor fusion algorithms.
Programmable proximity thresholds	Allows adaptive gesture sensitivity tuning per mechanical housing design-e.g., cover thickness or IR reflectivity.
ALS/UV/Prox concurrent operation	Enables synchronized multi-sensor measurements within one I²C transaction, reducing host polling overhead and power consumption.
Hardware interrupt support	Reduces host MCU wake-up frequency by offloading event detection to SI1153-AB9X-GMR, extending battery life in coin-cell applications.

Applications

Smart Door/Window Sensor	Battery-Powered Occupancy Detector
Use Scenario: Detecting door opening/closing and window position in smart home security systems using IR proximity and ambient light change. IC Role / Device Role / Timing Role: Proximity and ALS sensor providing contactless state detection with automatic daylight compensation. Use Value: Eliminates mechanical switches and reduces false alarms caused by ambient light fluctuations during day/night transitions.	Use Scenario: Monitoring room occupancy in commercial lighting controls using IR proximity and ambient light to distinguish human presence from static objects. IC Role / Device Role / Timing Role: Multi-modal sensor enabling adaptive timeout and dimming based on real-time occupancy and ambient conditions. Use Value: Extends battery life beyond 5 years on CR2032 via sub-1 µA deep-sleep current and interrupt-driven wake-up.
UV Index Wearable Monitor	Touchless Light Switch
Use Scenario: Personal UV exposure tracking in wrist-worn devices with direct sunlight measurement and dose accumulation. IC Role / Device Role / Timing Role: UV index sensor with calibrated spectral response matching CIE Erythemal Action Spectrum. Use Value: Delivers medically relevant UV index output without requiring host-side spectral correction or temperature compensation code.	Use Scenario: Wall-mounted lighting control where users wave hand near panel to toggle lights without physical contact. IC Role / Device Role / Timing Role: Proximity and ALS sensor enabling robust gesture detection under varying ambient light (indoor/outdoor). Use Value: Maintains >95% gesture recognition accuracy at 30 cm distance even under 10 klux ambient illumination.

Smart Door/Window Sensor

Battery-Powered Occupancy Detector

Use Scenario: Detecting door opening/closing and window position in smart home security systems using IR proximity and ambient light change.

IC Role / Device Role / Timing Role: Proximity and ALS sensor providing contactless state detection with automatic daylight compensation.

Use Value: Eliminates mechanical switches and reduces false alarms caused by ambient light fluctuations during day/night transitions.

Use Scenario: Monitoring room occupancy in commercial lighting controls using IR proximity and ambient light to distinguish human presence from static objects.

IC Role / Device Role / Timing Role: Multi-modal sensor enabling adaptive timeout and dimming based on real-time occupancy and ambient conditions.

Use Value: Extends battery life beyond 5 years on CR2032 via sub-1 µA deep-sleep current and interrupt-driven wake-up.

UV Index Wearable Monitor

Touchless Light Switch

Use Scenario: Personal UV exposure tracking in wrist-worn devices with direct sunlight measurement and dose accumulation.

IC Role / Device Role / Timing Role: UV index sensor with calibrated spectral response matching CIE Erythemal Action Spectrum.

Use Value: Delivers medically relevant UV index output without requiring host-side spectral correction or temperature compensation code.

Use Scenario: Wall-mounted lighting control where users wave hand near panel to toggle lights without physical contact.

IC Role / Device Role / Timing Role: Proximity and ALS sensor enabling robust gesture detection under varying ambient light (indoor/outdoor).

Use Value: Maintains >95% gesture recognition accuracy at 30 cm distance even under 10 klux ambient illumination.

Equivalent & Alternatives

The following parts are listed as comparable options for similar optical sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VEML6030	ALS-only, no UV or proximity; 16-bit resolution but no integrated LED driver.	Limited to ambient light control; cannot support gesture or UV monitoring use cases.	Select when only precision ALS is required and external LED control is acceptable.
AMS TMD2755	ALS + proximity only; UV index not supported; max LED drive = 100 mA; no factory UV calibration.	Supports basic touchless UI but lacks medical-grade UV reporting and long-range proximity.	Choose for cost-sensitive proximity/light combos where UV functionality is unnecessary.

Compared with VEML6030 and TMD2755, the SI1153-AB9X-GMR uniquely delivers calibrated UV index, dual 200 mA LED drivers, and concurrent ALS/UV/prox sampling-enabling single-component solutions for multi-function wearable and smart home sensors without host MCU compensation overhead.

Availability

SI1153-AB9X-GMR is available at Aetrix Electronics and suitable for smart home security sensors, battery-powered occupancy detectors, UV wearables, and touchless light switches requiring stable component supply and long-term production continuity.

Supply support for SI1153-AB9X-GMR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Silicon Labs is a fabless semiconductor company specializing in secure, intelligent wireless and sensing solutions for IoT endpoints, with headquarters in Austin, TX and global R&D centers.

The SI1153 family was designed specifically for ultra-low-power, multi-modal optical sensing in battery-operated consumer and industrial edge devices-emphasizing integration, factory calibration, and minimal host processing burden.

FAQ

What is the maximum recommended LED drive current for SI1153-AB9X-GMR?

The SI1153-AB9X-GMR supports up to 200 mA per LED channel (LED1 and LED2). This value is programmable in 2.5 mA steps via the LED_CURRENT register. Exceeding 200 mA may cause thermal derating or violate absolute maximum ratings. The SI1153-AB9X-GMR datasheet specifies 200 mA as the upper limit for continuous operation at 25°C ambient.

Does SI1153-AB9X-GMR require external calibration for UV index output?

No. The SI1153-AB9X-GMR includes factory calibration for UV index across its operational temperature range. The UV index value is delivered as a direct digital output (0–15 scale) without requiring host MCU compensation or lookup tables. This calibration is stored in on-chip nonvolatile memory and applied automatically during SI1153-AB9X-GMR operation.

Can SI1153-AB9X-GMR operate with a 1.8 V I²C bus?

No. SI1153-AB9X-GMR's I²C interface is designed for 2.7–3.6 V VDD operation only. Its SDA and SCL pins are not 1.8 V tolerant. To interface with a 1.8 V microcontroller, a bidirectional level shifter meeting I²C timing requirements must be used between the SI1153-AB9X-GMR and the host. The SI1153-AB9X-GMR itself does not support 1.8 V logic levels.

How does SI1153-AB9X-GMR reject ambient IR interference during proximity sensing?

The SI1153-AB9X-GMR uses synchronous demodulation: it pulses the IR LED at a defined frequency and samples the photodiode signal only during the active LED phase, rejecting continuous ambient IR sources like incandescent bulbs or sunlight. This technique is implemented in hardware and requires no host firmware intervention-ensuring consistent SI1153-AB9X-GMR proximity performance across lighting conditions.

Is the SI1153-AB9X-GMR RoHS and REACH compliant?

Yes. The SI1153-AB9X-GMR is RoHS 2011/65/EU and REACH SVHC-compliant. Silicon Labs provides full material declarations and compliance documentation through its Quality & Packaging portal. The "GMR" suffix in SI1153-AB9X-GMR indicates green (halogen-free, lead-free) packaging per JEDEC standards.

SI1153-AB9X-GMR Specifications

Product attributes: Attribute value

Manufacturer:: Silicon Labs

Series:: -

Package/Case:: 10-LLGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Ambient, Gesture

Wavelength:: 940nm

Proximity Detection:: Yes

Output Type:: I2C

Voltage - Supply:: 1.62V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-LGA (4.90x2.85)

SI1153-AB9X-GMR FAQ

1.How can I place an order for SI1153-AB9X-GMR through Aetrix?

Please submit a Request for Quotation (RFQ) for SI1153-AB9X-GMR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI1153-AB9X-GMR reliable?

The price and inventory of SI1153-AB9X-GMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI1153-AB9X-GMR is usually 5 days.

3.What payment methods are accepted for SI1153-AB9X-GMR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI1153-AB9X-GMR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI1153-AB9X-GMR?

SI1153-AB9X-GMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI1153-AB9X-GMR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI1153-AB9X-GMR?

For technical support, including SI1153-AB9X-GMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI1153-AB9X-GMR requirements.

6.How does Aetrix verify that SI1153-AB9X-GMR is sourced from the original manufacturer or authorized distributors?

All SI1153-AB9X-GMR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI1153-AB9X-GMR meets industry standards.

7.What is the process for return or replacement of SI1153-AB9X-GMR?

All SI1153-AB9X-GMR units undergo pre-shipment inspection (PSI). If there is an issue with SI1153-AB9X-GMR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI1153-AB9X-GMR part is unused and in its original packaging.

Return procedure for SI1153-AB9X-GMR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …