rohm referencedesigns

refsens002

refsens002reference design / application evaluation kit | rohm co., ltd.-ag旗舰平台尊龙

100a分流电阻和运放电流检测电路 参考设计

在汽车和工业设备领域,低边电流检测电路用于电流(电压)控制、过流限制和剩余电池电量检测等功能。通过分流电阻和电流检测放大器来实现的低边电流检测电路是非常常见的。refsens002 是分流电阻器和电流检测放大器的电流传感器参考设计。同时rohm还提供设计数据和参考板的销售以方便客户进行参考设计,助力客户减少设计工时。今后将计划发布电流检测范围高达50a的高精度参考设计板。


  • the simplest current sense circuit with shunt resistor and operational amplifier (lmr1802g)
  • high power shunt resistor psr400 2mω 4 in parallel
  • current sense range: up to 100a
  • thermally designed to keep each component within its absolute maximum rating even
  • at a detected current iin = 100a and an ambient temperature ta = 85°c
refsens002-evk-001

related documents

 
  • refsens002-evk-001

design resources

 
  • refsens002-evk-001

specifications

 
board number input voltage (equipped device) input voltage (sensing line) output system current sense range size
refsens002-evk-001 2.7 to 5.5v (lmr1802g-lb) ~26v (terminal protection by zener diode) analog voltage value up to 100a 90mm x 80mm

distribution inventory

 
board number distributor quantity available

key components

 
board number part number product category datasheet status spice ltspice thermal model symbol & footprint 3d step samacsys ecad library calc tool rohm solution simulator
refsens002-evk-001 bh1749nuc color sensor ics last time buy -
refsens002-evk-001 lmr1802g-lb operational amplifiers recommended solution simulator
refsens002-evk-001 lmr1802yg-c operational amplifiers recommended solution simulator
refsens002-evk-001 psr400itqfj2l00 current detection resistors recommended solution simulator
refsens002-evk-001 tdzv5.1 zener diodes recommended -