ADI LT3960 8开关LED调光阵列系统解决方案
ADI公司的LT3960是一款强大的高速收发器,通过使用CAN物理层,以高达400kbps 的速度将单主 I2C 总线扩展到恶劣或嘈杂的环境.一个 LT3960 位于 I2C 主机附近,在两个双绞线上从 SCL 和 SDA 创建等效差分总线 (I2CAN).在双绞线的另一端，第二个 LT3960 为任何从属 I2C 设备在本地重新创建 I2C 总线.内置的 3.3 V LDO 通过 4 V 至 60 V 的单输入电源为 I2C 和 I2CAN 总线供电,也可直接由 3.3 V 至 5 V 电源供电.高达400kbps I2C通信速率,扩展的共模电压为±36V.带热关断的限流驱动器,具有低电流关断模式.LT3960 采用 10 引脚 MSOP 封装.主要应用在工业网络,汽车网络和远程传感器.本文介绍了LT3960主要特性,框图,电性能和开关参数测量电路图,以及应用电路和1.38A 8开关LED调光阵列系统演示板DC2686A主要特性,电路图和材料清单.
The LT®3960 is a robust high speed transceiver that extends a single-master I2C bus through harsh or noisy environments at up to 400kbps using the CAN-physical layer. One LT3960 sits near the I2C master, creating from SCL and SDA equivalent differential buses (I2CAN) on two twisted pairs. At the other end of the twisted pairs, a second LT3960 recreates the I2C bus locally for any slave I2C devices. A built-in 3.3V LDO powers both the I2C and I2CAN buses from a single input supply from 4V to 60V. Alternatively, the LT3960 can be powered directly from a 3.3V or 5V supply.
The LT3960 is available in a 10-lead MSOP package.
LT3960主要特性:
nProtected from Overvoltage Line Faults to ±40V
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