Other Parts Discussed in Thread: TPS92640 , TPS92641 规格书上写
The TPS92640 and TPS92641 devices incorporate 2-Ω, 1-A internal gate drivers and supports constant current operation up to 5 A.
最大最电流是5A,可是PMP8016 demo板上的电流是20A,是不是我理解错了规格书的内容。
Other Parts Discussed in Thread: TPS92641 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/597207/tps92641-iadj-respose-time-or-max-input-frequency-to…
我输入电压为24V,Vturn-on 电压为20V。
This pin functions as both the PWM dimming input of the LEDs and as an input UVLO with built-in hysteresis. When the pin voltage rises and exceeds the 1.276-V threshold, 21 μA (typical) of current is driven out of the UDIM…
Part Number: LM76003 Other Parts Discussed in Thread: TPS92641 , 48V转21V过程中,随着负载功率的增大出现电流不足,然后电压跌落的情况
让LM76003构成的DCDC输出21V/3.5A(73.5W)为由TPS92641构建的LED驱动供电,LED的额定参数为7.2V/7.5A(54W)
LED驱动采用模拟调光方式,将模拟电压范围量化为0~1000对应LED的电流0~7.5A
测试过程中出现模拟电压最大能给到840对应LED电流6.3A…