PMR100HZPFV
Ultra-low Ohmic Chip Resistors For Current Detection
PMR100HZPFV
Ultra-low Ohmic Chip Resistors For Current Detection
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Description
ROHM的電流檢測用超低電阻值晶片式電阻為適用於大電流電路的金屬板型電阻。且藉由獨特的不需雷射調整(Trimingless)結構，可提升電流檢測的精確度，適合用於大電流高速切換電路。
Product Detail
Specifications
Automotive grade
Yes
Size[mm](inch)
6432(2512)
Rated Power[W]
3, 2
Resistance Tolerance
F (±1%)
Resistance range[Ω]
1m to 4m
Resistance(Min.)[Ω]
0.001
Resistance(Max.)[Ω]
0.004
Temperature Coefficient[ppm/°C]
±75,±100
Operating Temperature[°C]
-65 to 175, -55 to 155
Type
For current sensing
Operating Temperature (Max.)[°C]
155
Common Standard
AEC-Q200 (Automotive Grade)
Features
・ROHM獨特的無需雷射調整構造，實現優異的散熱性・對應從1mΩ開始的超低電阻值
・優異的電阻溫度特性（±150／±100ppm/℃）
・完全無鉛化
Lineup
Reference Design / Evaluation Tool
-
- Reference Design - REF68011
- 20A Shunt-based current sensing (uni-direction) with CSA on 12V system
In the automotive and industrial equipment fields, current sensing circuits are essential for applications such as current feedback, overcurrent limitation, and battery level monitoring. The shunt-based current sensing circuit is the most standard circuit for current measurement and monitoring. ROHM provides solutions that leverage the resistor technology it has developed since its founding, as well as the analog and thermal design technologies it has cultivated over many years, contributing to improved system performance, higher power efficiency, and higher reliability through high-precision current sensing.
The components you select will vary depending on the power supply system and detection current value. We have a lineup of reference designs for 12V, 24V, and 48V systems, as well as current sensing values from 20 to 100A. We publish not only the schematic design guide but also thermal evaluation data for shunt resistors. Thermal issues are an important factor in shunt-based current sensing. Please use these as design references to help reduce design man-hours.
This reference design is designed for 20A, uni-direction current sensing on 12V systems.
