With continuous iteration and upgrading of consumer electronics and the sustained explosion of AIoT smart interaction scenarios, delicate and vivid ambient lighting effects have become a core feature for enhancing product aesthetics, strengthening human-machine interaction, and defining brand identity. Addressing the industry’s critical demands for slimness, high integration, low EMI, and low power consumption,AIoTawinic officially launches theultra-compactEMIlow-power18-channel intelligent breathing LED driver IC,AW21018PLR — an1818-channel intelligent breathing LED driver ICAW21018PLR.
A single chip can drive up to1818 single-colorLEDor66 sets ofRGBRGB full-color LEDs, supporting applications including smartphone interactive indicators, tablet side ambient lighting, notebook logo indicators,Logoindicators,AIAI-powered smart toys, and the full range ofAIoTAIoT smart devices — delivering a compact, efficient, minimalist-design, and highly reliable integrated lighting-effect solution with four core advantages: ultra-compact packaging, ultimate dimming precision, biomimetic autonomous breathing, and low-EMI & silent operation.ultra-compact packaging, ultimate dimming precision, biomimetic autonomous breathing, and low-EMI & silent operationEMI&silent operationFour core advantages — ultra-compact packaging, ultimate dimming precision, biomimetic autonomous breathing, and low-EMI & silent operation — deliver a compact, efficient, minimalist-design, and highly reliable integrated lighting-effect solution for the industry.
1.Full-color RGBRGBconstant-current configuration,1680 16.8-million-color fine dimming
AW21018 Featuring a high-precision constant-current source with current accuracy as high as±5%±5%,
• 256256-level global dimming:Supports one-touch system-wide brightness adaptation, enabling rapid switching between daytime high-brightness and nighttime eye-comfort low-brightness modes to meet diverse lighting scenario requirements;
• 256256-level independentDCDC constant-current dimming: Each channel enables precise independent current control, ensuring consistent LED brightness and chromaticity, and effortlessly achievingLEDbrightness and chromaticity consistency,LEDbrightness and chromaticity consistency, 1680 16.8-million-color full-color mixing to empower exquisite full-color applications;
• 40964096-level independentPWMPWM fine dimming:12bitUltra-high-resolution PWM dimming ensures smooth, refined brightness transitions and richly layered light-and-shadow variations — dramatically minimizing stair-stepping artifacts while balancing visual sophistication and user comfort.PWM12-bit ultra-high-resolution PWM dimming ensures smooth, refined brightness transitions and richly layered light-and-shadow variations — dramatically minimizing stair-stepping artifacts while balancing visual sophistication and user comfort.
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Figure1 AW21018 Typical Application Diagram
2.Ultra-compact package size reduces PCB footprint by 75% 75%
AW21018PLR Packaged in an 2mm × 2mm (25-Ball) ultra-miniaturized 2 mm × 2 mm (25-ball) package, specifically tailored for space-constrained applications such as smartphones, tablets, and AI-powered toys.AI AI-powered toys.
Compared with industry-standard 18-channel LED drivers (typically using QFN 4×4 packages), 18 18-channel LED Driver(typically using QFN 4×4 QFN 4×4 package),AW21018PLR AW21018PLR’s PCB footprint is reduced by up to 75%75%,
3.Integrated autonomous breathing engine efficiently frees up MCU resources
The chip integrates a dedicated autonomous breathing engine internally, enabling smooth, refined fade-in/fade-out lighting effects independently — without real-time intervention from the host MCU. MCU without real-time intervention from the host MCU.
• Cost and efficiency optimization: Significantly saves MCU program and timer resources, reducing software driver development costs; MCUsoftware driver development costs;
• Ultra-low power consumption: Hardware-level autonomous operation effectively lowers overall system power consumption, extending battery life for AIoT and wearable devices. AIoT AIoT and wearable devices.
Figure2 AW21018Integrated autonomous breathing lighting effect engine
4.Low-EMI &EMI & silent design simplifies system design
Targeting common pain points in LED driving — EMI interference and capacitor squeal — LED LED driver EMI EMI interference and capacitor squeal,AW21018PLR AW21018PLR implements deep optimizations:
• Low-EMI EMI design: Supports slew-rate control and spread-spectrum functionality to effectively reduce electromagnetic interference, helping systems easily pass Slew RateEMC EMC EMC certification;
• Squeal-free suppression:PWM PWM driving frequency reaches up to 62 kHz62 kHz — far exceeding the audible human hearing range (20 Hz–20 kHz),20Hz-20kHz20 Hz–20 kHz,
• 1818-channel high-precision constant-current source driving
256256-level global current
256256-level independent DC constant-current dimmingDC256-level independent DC constant-current dimming
40964096-level independent PWM dimmingPWM4096-level independent PWM dimming
Maximum current per channel:LED40 mA40mA
• Integrated autonomous breathing engine,no real-time MCU intervention required
• Low-EMI &EMI & silent design
• Supports open/short-circuit fault diagnostics
• 1MHz High-speed I²C interfaceI2C High-speed I²C interface
• Ultra-compact package: FOPLP 2 mm × 2 mm – 25 ballsFOPLP 2mm×2mm-25B
• Conventional package: QFN 2 mm × 2 mm – 24 leads QFN 2mm×2mm-24L
awinic Light Language® Selection Guide
LEDConstant-current direct drive (6–36 channels)6~36Constant-current direct drive (6–36 channels)
LEDConstant-current matrix drive (18–216 channels)18~216Constant-current matrix drive (18–216 channels)
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