AAT3193-4 Three-Channel Charge Pump LED Driver

The AAT3193-4 is a charge-pump based, current-sink white LED driver capable of driving one or two LEDs up to 30mA, each. It automatically switches between 1x mode and 2x mode to maintain the highest efficiency and optimal LED current accuracy and matching. The AAT3193-4 charge pump’s 1x mode (bypass mode) has very low resistance allowing LED current regulation to be maintained with input supply voltage approaching the LED forward voltage. The AAT3193-4 is available in the 2×2.2mm, 10-lead SC70JW-10 package.

技术特性
  • Drives up to 3 LEDs at up to 30mA, each
  • Automatic Switching Between 1x and 2x Modes
  • 0.9MHz Switching Frequency
  • Linear LED Output Current Control
  • Single-wire, S2Cwire Interface
  • AAT3193-4: 16-step
  • AAT3193-2: 8-step
  • AAT3193-3: 4-step
  • ON/OFF or PWM Interface
  • AAT3193-4
  • ±10% LED Output Current Accuracy
  • ±3% LED Output Current Matching
  • Low-Current Shutdown Mode
  • Built-in Thermal Protection
  • Automatic Soft-Start
  • Available in 2×2.2mm SC70JW-10 Package
应用领域 APPLICATION
  • Entry Level Cordless Phone Handsets
  • Entry Level Digital Cameras
  • Entry Level Mobile Phone Handsets
  • Entry Level MP3 and PMP Players
订购信息 Ordering Information
  • AAT3193-4
AAT3193-4 典型应用

AAT3193-4 典型应用

应用技术支持与电子电路设计开发资源下载 版本信息 大小
AAT3193-4 数据资料DataSheet下载:pdf Rev.V2 2 页