DC/DC LED驱动器
芯晶图电子专业芯片代理公司，提供更优质的产品及技术支持
ESMT(晶豪科技)
DC/DC LED驱动器
EMD2055-00FK08NRR
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 combinations with a DC power supply from 2.5V to 5.5V. The EMD2055 uses current mode and pulse-width modulated (PWM) operation. Its high switching operation frequency of 1.2MHz allows the system to use small inductor, input and output capacitors. An internal compensation circuit can reduce the external component count.
To safeguard the system, the EMD2055 includes various protection circuits such as under-voltage lockout, current limit, over voltage and thermal shutdown. EMD2055 are available in the tiny packages of SOT-23-6L and TDFN-8L (2x2mm).
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 Compensation
1.4A Internal power MOSFET Switch
Low Profile SOT-23-6 and TDFN-8L Packages
Applications
Mobile Phone
Digital Still Cameras
Portable applications
MP3 Players
GPS Receivers
.png)
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
