欢迎访问ic37.com |
会员登录 免费注册
发布采购

EN63A0QI 参数 Datasheet PDF下载

EN63A0QI图片预览
型号: EN63A0QI
PDF下载: 下载PDF文件 查看货源
内容描述: 12A同步高度集成DC-DC PowerSoC [12A Synchronous Highly Integrated DC-DC PowerSoC]
分类和应用:
文件页数/大小: 24 页 / 1511 K
品牌: ENPIRION [ ENPIRION, INC. ]
 浏览型号EN63A0QI的Datasheet PDF文件第12页浏览型号EN63A0QI的Datasheet PDF文件第13页浏览型号EN63A0QI的Datasheet PDF文件第14页浏览型号EN63A0QI的Datasheet PDF文件第15页浏览型号EN63A0QI的Datasheet PDF文件第17页浏览型号EN63A0QI的Datasheet PDF文件第18页浏览型号EN63A0QI的Datasheet PDF文件第19页浏览型号EN63A0QI的Datasheet PDF文件第20页  
EN63A0QI  
power FETs are turned off for the rest of the  
switching cycle. If the over-current condition is  
removed, the over-current protection circuit will re-  
enable PWM operation. If the over-current condition  
persists, the circuit will continue to protect the load.  
The OCP trip point is nominally set as specified in  
the Electrical Characteristics table. In the event the  
OCP circuit trips consistently in normal operation,  
the device enters a hiccup mode. The device is  
disabled for 27µs and restarted with a normal soft-  
start. This cycle can continue indefinitely as long as  
the over current condition persists.  
exceeds approximately 150ºC. Once the junction  
temperature drops by approx 20ºC, the converter  
will re-start with a normal soft-start.  
Input Under-Voltage Lock-Out  
When the input voltage is below a required voltage  
level (VUVHI) for normal operation, the converter  
switching is inhibited. The lock-out threshold has  
hysteresis to prevent chatter. Thus when the device  
is operating normally, the input voltage has to fall  
below the lower threshold (VUVLO) for the device to  
stop switching.  
Thermal Overload Protection  
Temperature sensing circuits in the controller will  
disable operation when the junction temperature  
Enpirion 2012 all rights reserved, E&OE  
Enpirion Confidential  
www.enpirion.com, Page 16  
07077  
May 9, 2012  
Rev: C