SGM3138 Description
The SGM3138 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources.
SGM3138 Key Features
- Input Voltage Range: 2.7V to 5.5V
- Drives Up to 6 LEDs at 20mA Each
- One Single Wire Interface
- 16-Step Brightness Control
- Switching Frequency: 1MHz
- Regulated Output Current with ±5% Matching
- Internal Soft-Start Limits Inrush Current
- Low Input Ripple and Low EMI
- Over-Current and Over-Temperature Protection
- Under-Voltage Lockout with Hysteresis
SGM3138 Applications
- Input Voltage Range: 2.7V to 5.5V
- Drives Up to 6 LEDs at 20mA Each