The LM3881EVAL is a LM3881 power sequencer evaluation board, designed to permit the designer to connect it directly to the enable or remote ON/OFF pins of power supply devices of an existing system to facilitate system sequencing. Upon enabling the device, the three open drain output flags will rise in sequential order 1-2-3. Once the part is disabled, the shutdown sequence will occur in reverse order 3-2-1. Therefore the last power supply that started up will be the first to shutdown.
- Easiest method to sequence rails
- Power up and power down control
- Input voltage range of 2.7V to 5.5V
- Small footprint VSSOP8 package
- Low quiescent current of 80μA
- Output invert feature
- Timing controlled by small value external capacitor
电源管理, 嵌入式设计与开发
(EN)
