AW21024QNR数据手册Awinic中文资料规格书

描述 Description

AW21024 is a 24-channel high precision constant current LED driver. Each channel has individual 8-bit DC current setting for color-mixing and 8-bit PWM current for brightness control. The maximum global current of each channel is recommended to be 50mA configured via register GCCR and external Resistor REXT.Group control mode, autonomous breathing pattern and rapid RGB control mode are provided for flexible, high efficiency lighting effect programming and fast display updating. Programmable phase-shifting and spread spectrum technology are utilized to reduce EMI and audible noise caused by MLCC when LEDs turn on in off simultaneously. AW21024 can be turned off with minimum current consumption by either pulling the EN pin low in using the software shutdown feature. AW21024 is available in QFN 4mmX4mmX 0.85mm-32L package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.

特性 Features

•24-channel RGB LED Driver
- Global 256-level DC current configuration
- Individual 256-level PWM for dimming
- Individual 256-level current for color-mixing
•High-precision current sinks
- Device-to-device error: ±5%
- Channel-to-channel error: ±5%
•EMI and audible noise reduction
- Phase delay and phase inverting sheme
- Spread spectrum function
•Flexible LED light pattern contro
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•LED open/short detection per channe
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•Auto power saving mode when all LEDs off ＞32ms
•Over-temperature protection
•400 kHz I2C interface,four selectable addresses
•Power supply: 2.7V~5.5V
• QFN 4mm×4mm×0.85mm-32L package