AAT1409 Description
The AAT1409 is a highly integrated, high efficiency LED backlight solution for notebook puters, monitors and portable TVs. The device operates from DC inputs, cigarette lighter adapters, or multi-cell Li-ion batteries over the 4.5V to 26V voltage range. An integrated boost (step-up) converter provides up to 45V output for driving series LEDs.
AAT1409 Key Features
- ±2% Accuracy (21mA)
- ±2% Matching (21mA) Flexible Configurations
- Disable or Parallel Switching Frequency Options
- 675kHz or 1.3MHz
- Synchronize to System Clock PWM Direct Dimming Input
- Up to 100kHz Prevents Audio Interference
- Fast Turn-On/Off
- Wide 1,000:1 Dimming Range (100Hz) Fault Tolerant: Open/Short LED(s) Current Limit Protection Over-Voltage Protection Ov