AW20198EQNR数据手册Awinic中文资料规格书

描述 Description

AW20198E is an 18x11 matrix LED driver programmed via an SPI compatible interface. Each channel has individual 8-bit DC current setting for color-mixing and 8-bit PWM current setting for brightness control. The global current of each channel is configured via register GCCR and external resistor REXT.Three integrated pattern controllers provide auto breathing in group dimming control. Each pattern controller can work in auto breathing in manual control mode. All breathing parameters are configurable, including rising/falling slope, on/off time, repeat times, and minimum/maximum brightness, etc. Each LED’s PWM parameter can be sourced from any one of the 3 pattern controllers optionally.Phase-delay, phase-inverting, selectable three phase, spread spectrum and slew rate control technology are utilized to reduce EMI and audible noise caused by MLCC when LEDs turn on in off simultaneously.AW20198E can be turned off with minimum current consumption by either pulling the EN pin low in using the software reset. AW20198E operates over the temperature range of -40°C to +85°C.

特性 Features

1.18 current sinks, 11 current switches, up to drive 198 LEDs or 66 RGBs.2.3 pattern controllers for auto breathing or group PWM control3.Global 256-level DC current configuration4.Individual 256-level PWM for dimming5.Individual 256-level SL current for color-mixing6.High-precision current sinksa)Device-to-device error: ±5%b)Channel-to-channel error: ±5%7.EMI and audible noise reductiona)Phase control b)Spread spectrum functionc)Programmable slew rate control8.Individual 198 LEDs open/short detection 9.Multiple-device clock synchronization by SYNC10.UVLO and over-temperature protection11.De-Ghost12.10MHz SPI interface13.Power supply: 2.7V~5.5V 14.QFN 5mmx5mmx0.55mm-40L package