通道數 Matrix - 144
三原色光模式 32
Γ修正 External
接口 I2C - 400KHz
音频同步器 Yes
自動調光 Yes
電壓 - 電源 2.7-5.5
腳位/封裝 SSOP-28
狀態 Prod
產品系列 31 = 商業/工業模擬
產品類別 FL = 灯效LED(FxLED)驅動
IC代碼 3731
硅片版本 C
焊接 [空白] = SnPb
温規 [空白] = 商規 (0C to +70°C)
外包裝 卷轴包

IS31FL3731C-SALS2-TR 特徵

  • Supply voltage range: 2.7V to 5.5V 400kHz I2C-compatible interface 0.77VCC threshold logic high control 144 LEDs in dot matrix Individual blink control 8 frames memory for animations Picture mode and animation mode Auto intensity breathing during the switching of different frames LED frames displayed can be modulated with audio signal intensity LED light intensity can be modulated with audio signal intensity
  • QFN-28 (4mm × 4mm) and SSOP-28 package
  • White goods LED application

概觀

The IS31FL3731C is a compact LED driver for 144 single LEDs. The device can be programmed via an I2C compatible interface. The high logic (0.77VCC) and low logic (0.2VCC) control threshold are specially designed for white goods and industry application to minimize the impact by the EMC noise. The IS31FL3731C offers two blocks each driving 72 LEDs with 1/9 cycle rate. The required lines to drive all 144 LEDs are reduced to 18 by using the cross-plexing feature optimizing space on the PCB. Additionally each of the 144 LEDs can be dimmed individually with 8-bit allowing 256 steps of linear dimming. To reduce CPU usage up to 8 frames can be stored with individual time delays between frames to play small animations automatically. LED frames can be modulated with audio signal. IS31FL3731C is available in QFN-28 (4mm × 4mm) and SSOP-28 package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.