超低电阻表面贴装电流分流器

摘要：超低电阻表面贴装电流感应电阻看起来就像理想的包。物理设计，金属表带，似乎很理想，提供尽可能最低的电感。往往这些电阻需要一些电阻电容滤波器来限制开关噪声尖峰。问题是，分流器的时间常数除以电路的电阻，封装电感。因此，分流电阻低，时间越长，衰减时间。

Maxim > App Notes > BATTERY MANAGEMENT POWER-SUPPLY CIRCUITS

Keywords: current sense, resistor, surface mount, current shunt, current-sense resistors, shunt resistance Dec 27, 2001

APPLICATION NOTE 908
Ultra-Low Resistance Surface Mount Current Shunts

Abstract: Ultra-low resistance surface mount current-sense resistors seem like the ideal package. The physical
design, a strap of metal, seems ideal, offering the lowest inductance possible. Too often these resistors need
some kind of resistor capacitor filter to limit the switching noise spikes. The problem is that the time constant
for the shunt is the package inductance divided by the circuit resistance. Consequently, the lower the shunt
resistance, the longer the decay times.


Ultra-low resistance surface mount current-sens