TI TPSI3050-Q1带10V栅极的增强隔离汽车开关驱动器解决方案

TI公司的TPSI3050-Q1是带10V栅极的增强隔离汽车开关驱动器,和外接功率开关组合,组成完全隔离的固态继电器(SSR).具有正常栅极驱动电压10V和1.5A/3.0A峰值源和沉电流,可选择各种外接功率开关以满足各种不同的应用. TPSI3050-Q1从初级边的功率接收产生它自己的次级偏压电源,这样不需要次级边的隔离电源.此外,器件还能为外接支持电路选择电源,用于各种应用需要的应用. TPSI3050-Q1支持基于输入引脚数量需要的两种工作模式.在两线模式,特别在驱动机械继电器,控制开关仅需要两个引脚,支持6.5V到48V的各种范围的电压.在三线模式,3V到5.5V的基本电源是由外接提供,而开关通过分立的电缆来控制.仅在三线模式,开关由分立电缆控制, TPSI3050S-Q1具有一次性开关控制.这种特性在驱动SCR时是有用的,典型地SCR仅需要一个电流脉冲来触发.器件的增强隔离特性为5-kVRMS.外接辅助电路高达50mW电源,支持AC或DC开关,支持两线或三线模式,功率传输七种电平,由电阻来选择.汽车级工作温度–40到125°C, AECQ100资质环境.主要用在固态继电器,电池管理系统,车载充电机, 混合动力,电动和动力传动系系统,建筑物自动化和工厂自动化于控制.本文介绍了TPSI3050-Q1主要特性,功能框图和简化电路图,共模瞬态免疫度测试电路,三线和两线模式驱动MOSFET电路图,以及评估板TPSI3050Q1EVM主要特性,电路图,材料清单和PCB设计图.

TPSI3050-Q1 Automotive Reinforced Isolated Switch Driver with Integrated 10-V Gate

The TPSI3050-Q1 is a fully integrated, isolated switch driver, which when combined with an external power switch, forms a complete isolated Solid State Relay (SSR). With a nominal gate drive voltage of 10 V with 1.5/3.0-A peak source and sink current, a large

variety of external power switches can be chosen to meet a wide range of applications. The TPSI3050-Q1 generates its own secondary bias supply from the power received from its primary side, so no isolated secondary supply bias is required. Additionally, the TPSI3050-Q1 can optionally supply power to external supporting circuitry for various application needs.

The TPSI3050-Q1 supports two modes of operation based on the number of input pins required. In two-wire mode, typically found in driving mechanical...