EMD2055 Overview
The EMD2055 is a highly efficient, step-up DC/DC converter for driving white LEDs. The device can drive up to 10 serially connected white LEDs from a single Li-Ion battery, or to drive multiple serial and parallel binations with a DC power supply from 2.5V to 5.5V. The EMD2055 uses current mode and pulse-width modulated (PWM) operation.
EMD2055 Key Features
- Up to 10 WLEDs supports
- Low Quiescent Current: 120 µA
- Over Voltage Protection: 36.5V
- Inherently Matched LED Current
- Shutdown Current < 1µA
- Reference Voltage 0.245V
- PWM Dimming Control (2kHz~200kHz)
- Internal Soft Start and pensation
- 1.4A Internal power MOSFET Switch
- Low Profile SOT-23-6 and TDFN-8L Packages