深圳市兴联达电子有限公司

这是一sgm3141电流调节电荷泵

ideal for
powering high brightness LEDs for camera

理想的为高亮度LED相机

flash
applications. The charge pump can be set to

Flash应用程序。电荷泵可设置

regulate
two current levels for FLASH and TORCH

规范的Flash和火炬两个电流水平

modes.

模式。

The
SGM3141 automatically switches modes between

自动开关模式之间的sgm3141

step-up
and step-down ensuring that LED current does

升压和降压LED电流是保证

not
depend on the forward voltage. It switches at 2MHz,

不依赖于正向电压。它的开关在2MHz，

allowing
the use of tiny components. The supply

允许使用小部件。供应

voltage
ranges from 2.7V to 5.5V and is ideally suited

从2.7V至5.5V电压范围和非常适合

for all
applications powered by a single LI-Ion battery

对于所有的应用程序由一个单一的锂离子电池供电

cell or
three to four NiCd, NiMH, or Alkaline battery

细胞或三到四镍镉，镍氢电池，碱性电池

cells.

细胞。

The
SGM3141 also features a very low shutdown

该sgm3141还具有一个非常低的关机

current,
an automatic soft-start mode to limit inrush

目前，自动软启动方式限制涌流

current,
as well as over current, over voltage and over

目前，以及过电流，过电压、过

thermal
shutdown control.

热关断控制。

A low
current sense reference voltage (50mV) allows

低电流检测基准电压（50mV）允许

the use
of small 0603 current sensing resistors.

0603小的电流传感电阻的使用。

The
SGM3141 is available in Green DFN3×3-10L

在绿色的sgm3141 DFN3×3-10l是可用的

package
and is specified over an ambient temperature

包和指定超过环境温度

range of
-40℃ to +85℃.

系列40℃+
85℃。