ETA1637 Overview
The ETA1637 is a driver specially designed for back-lighting. It consists of a high accuracy current sink that allows low duty dimming and a high efficiency step-up converter with an integrated low side and high side power MOSEFT. It runs with an optimal 0.6MHz frequency that enables use of small external ponents while still providing best efficiencies.
ETA1637 Key Features
- Synchronous Boost, No Schottky Diode Needed
- Internal Current Source Driving, no need of external
- ±10% LED Current Accuracy at 1% Diming Ratio
- Capable of 0.1% dimming ratio
- Up to 85% Efficiency (6 LEDs)
- Drive up to 8 LEDs
- 30V Output Over Voltage Protection
- LED string Short Circuit Protection
- True PWM Brightness Control
- 1A current limit