TEXAS INSTRUMENTS TPS40400RHLR 直流/直流控制器, PM总线接口, 3V至20V, 1路输出, 同步降压, 2MHz, VQFN-24
The is a flexible Synchronous Buck Controller operates from a nominal 3 to 20V supply. This analog PWM controller that allows programming and monitoring through the PMBus™ interface. Flexible features found on this device include programmable soft-start time, programmable short circuit limit and programmable undervoltage lockout UVLO. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs. Gate drive voltage is 6V to better enhance the power FETs for reduced losses. Short circuit detection occurs by sensing the voltage drop across the inductor or across a resistor placed in series with the inductor. A PMBus programmable threshold is compared to this voltage and is used to detect overcurrent. When the overcurrent threshold is reached, a pulse by pulse current limit scheme is used to limit the current to acceptable levels.
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
电源电压DC 3.00V min
输出接口数 1
输出电压 600 mV
输出电流 30 mA
针脚数 24
耗散功率 4360 mW
静态电流 6.00 mA
调节输出数 1
上升时间 12.1 ns
开关频率 200kHz ~ 2MHz
过温保护 Yes
拓扑结构 Buck
占空比 90 %
最大占空比 90 %
下降时间 12.6 ns
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 3V ~ 20V
电源电压Max 20 V
电源电压Min 3 V
输入电压 8V ~ 14V
安装方式 Surface Mount
引脚数 24
封装 VQFN-24
封装 VQFN-24
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2018/06/27
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TPS40400RHLR TI 德州仪器 | 当前型号 | 当前型号 |
TPS40400RHLT 德州仪器 | 类似代替 | TPS40400RHLR和TPS40400RHLT的区别 |