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TPS99000-Q1: 启动条件是什么

Part Number: TPS99000-Q1

在DLP5530 EVM调试发现系统无法启动。先排查TPS99000部分,6.5V,3.3V开机默认上电正常,VMAIN为2.9V,PROJ_ON为高电平3.3V均正常,但ENB_1P1V、ENB_1P8V、ENB_3P3V使能信号输出均为低电平,导致无法启动外部电源,系统无正法正常启动。请问TPS99000正常启动条件是什么,感谢!