Shengbang Microelectronics is a semiconductor company that focuses on the research and development and sales of high-performance, high-quality analog integrated circuits. Shengbang Microelectronics products have excellent performance and quality and can be widely used in many fields such as mobile phones, TVs, DVDs, digital cameras, laptops, consumer electronics, automotive electronics, industrial automation control, medical instruments, LCD displays, etc.
6-Channel Charge Pump White LED Driver with Low Dropout Current Source Charge Pump LED Driver
Features
Product Name: 6-Channel Charge Pump White LED Driver with Low Dropout Current Source Charge Pump LED Driver
Product model: SGM3142
Product Description:
The SGM3142 is a high efficiency and cost effective charge pump white LED driver. It supports up to 6 white LEDs and regulates a constant current for uniform intensity. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.
User can easily configure each LED current from 1.25mA to 20mA by a pulse dimming control. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN/SET pin. There are totally 16 steps of current could be set by users. The operating voltage range is 2.7V to 5.5V. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.
The SGM3142 is available in Green TQFN-4×4-16L package and is specified over an ambient temperature range of-40℃ to +85℃.
Product Features:
Input Voltage Range: 2.7V to 5.5V
Drives up to 6 LEDs at 20mA Each
16-Step Brightness Control
High Efficiency by Fractional Conversion with 1× and 1.5× Modes
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