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TMS320F2808PZA 功耗大小确认

Other Parts Discussed in Thread: TMS320F2809, TMS320F2808

我们想确认TMS320F2808PZA 1.8V内核功耗大小。我们用两级LDO单独给内核供电,5V→3.3V→1.8V,从5V输入端测出电流大小为280mA左右,觉得电流偏大导致过热,想确认2808内核在以下状态下功耗大小:

1 程序已烧完,外设已初始化,CPU没做任何运算。

2 没烧程序大概200mA左右。

3 LDO电压正常输出。

4 LDO型号:Atmel ASM1117     

帮忙看下以上问题,感谢!

  • 你好,非常抱歉由于F2808这款芯片挺老了,我这边没有这款芯片或对应的设备,只能根据芯片datasheet第23页的Table 5-1. TMS320F2809, TMS320F2808 Current Consumption by Power-Supply Pins at 100-MHz SYSCLKOUT数据判断,200mA应该是正常运行状态的电流值。
    如果你需要更详细的运行数据,建议你前往E2E英文论坛咨询:e2e.ti.com/.../171