LINEAR TECHNOLOGY LT4276AIUFD#PBF Power Over Ethernet POE Controller, 60V/2mA, 300kHz Switch/Clock, QFN-28
The is an LTPoE++/PoE+/PoE powered device PD forward/flyback controller in 28 pin QFN package. This device is a pin to pin compatible family of IEEE 802.3 and LTPoE++ PD controllers. It includes an isolated switching regulator controller capable of synchronous operation in both forward and flyback topologies with auxiliary power support. The LT4276A employs LTPoE++ classification scheme and receives 38.7W, 52.7W, 70W or 90W of power at PD from RJ45 connector. It is backward compatible with IEEE 802.3 and no opto isolator required for flyback operation. The device supports both forward and flyback power supply topologies and can be configurable for a wide range of PoE applications. Auxiliary input voltage can be accurately sensed with a resistor divider connected to AUX pin. The LT4276A utilizes an external, low RDS ON N channel MOSFET for hot swap function which maximizes power delivery, efficiency, reduces heat dissipation and eases thermal design.
频率 300 kHz
输入电压DC 60.0 V
通道数 1
针脚数 28
占空比 66 %
输入电压Max 60 V
输出功率Max 90 W
额定功率Max 90 W
最大占空比 70 %
工作温度Max 85 ℃
工作温度Min -40 ℃
输入电压 60 V
安装方式 Surface Mount
引脚数 28
封装 QFN-28
封装 QFN-28
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Each
制造应用 Power Management, 电源管理, 成像, 视频和目视, Wireless, 安全, Security, Imaging, Video & Vision, 无线
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LT4276AIUFD#PBF Linear Technology 凌力尔特 | 当前型号 | 当前型号 |
LT4276AIUFD#TRPBF 凌力尔特 | 完全替代 | LT4276AIUFD#PBF和LT4276AIUFD#TRPBF的区别 |
LT4276AHUFD#PBF 凌力尔特 | 类似代替 | LT4276AIUFD#PBF和LT4276AHUFD#PBF的区别 |