罗姆的电流检测用超低贴片电阻是针对大电流电路的金属板型超低阻值贴片电阻。采用了独特的切断构造,可以提高电流检测精度,适合大电流高速开关电路。

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主要规格

 
型号 | pmr18ezpfv
status | 推荐品
封装 | pmr18
包装数量 | 5000
最小独立包装数量 | 5000
包装形态 | taping
rohs |
长期供货计划 | 10 years

特性:

automotive grade

yes

size[mm](inch)

3216(1206)

rated power[w]

1.5, 1

resistance tolerance

f (±1%)

resistance range[ω]

1m to 4m

resistance(min.)[ω]

0.001

resistance(max.)[ω]

0.004

temperature coefficient[ppm/°c]

±100

operating temperature[°c]

-55 to 155

type

for current sensing

operating temperature (max.)[°c]

155

common standard

aec-q200 (automotive grade)

特点:

・罗姆独特的切断构造,实现了优质的放热性。
・对应超低电阻阻值1mω
・优质电阻温度特性(±100ppm/℃)
・完全实现pb free

reference design / application evaluation kit

 
    • application evk - apevk66001
    • industrial 3.6kw totem pole pfc application evk
    • various applications are equipped with ac/dc functions, and the totem pole pfc topology is the standard circuit.the tppfcsic-evk-301 implements a single-phase ac/dc conversion stage in totem pole pfc topology. key components are rohm gen.4 sic mosfets (sct4045dr) as the main high-frequency switching elements, as well as the bm61s41 single-channel isolated gate driver ic. in addition, sj mosfets and auxiliary power supply, among other components from rohm, were utilized to create a high-performance ac/dc circuit for single-phase operation.tppfcsic-evk-301 reaches up to 98.5% efficiency at 230vac.if this totem pole pfc reference design is coupled with a secondary stage of comparable efficiency, it becomes possible to achieve the 80 titanium target efficiency of power supply products. moreover, this contributes to enhancing the annual performance factor (apf) of air conditioners.

      this reference design consists of two boards. each is shown below.

      • tppfcsic-evk-201_pcb3051:totem pole pfc board
      • tppfcsic-evk-201_pcb3052 : aux power supply board

      the software for this reference design can be downloaded from below.

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