TPS7H5004-SP数据手册TI中文资料规格书

描述 Description

TPS7H500x-SP 耐辐射加固保障高速 PWM 控制器系列。这些控制器提供的许多功能有助于设计面向太空应用的直流/直流转换器拓扑。控制器具有精密的内部基准 (0.613V +0.7%/-1%），可配置开关频率高达 2MHz。每个器件都提供可编程斜坡补偿和软启动功能。

TPS7H500x-SP 系列可通过 SYNC 引脚使用外部时钟来驱动，也可使用内部振荡器以用户编程的频率来驱动。此控制器系列为用户提供了各种选项，用于选择开关输出、同步整流功能、死区时间（固定或可配置）、前沿消隐时间（固定或可配置）和占空比限制。TPS7H500x-SP 系列中的每个器件都采用 22 引脚 CFP 封装。TPS7H5001-SP 还可采用 24 引脚 TSSOP 塑料封装。

特性 Features

• Radiation performance:
• Radiation hardness assured (RHA) up to TID 100 krad(Si)
• SEL, SEB, and SEGR immune to LET = 75 MeV-cm2/mg
• SET and SEFI characterized up to LET = 75 MeV-cm2/mg
• No cross-conduction events for controller outputs observed during SET characterization

• Input voltage: 4 V to 14 V
• 0.613-V ±1% voltage reference over temperature, radiation, and line and load regulation
• Switching frequency from 100 kHz to 2 MHz
• External clock synchronization capability
• Synchronous rectification outputs
• TPS7H5001-SP, TPS7H5002-SP, TPS7H5003-SP

• Adjustable dead time
• TPS7H5001-SP, TPS7H5002-SP

• Adjustable leading edge blank time
• TPS7H5001-SP, TPS7H5002-SP, TPS7H5004-SP

• Configurable duty cycle limit
• TPS7H5001-SP, TPS7H5002-SP, TPS7H5003-SP

• Adjustable slope compensation and soft start
• Thermally-enhanced CFP package