PMR18EZPFV
Ultraniederohmige Chip-Widerstände für Stromerfassung
PMR18EZPFV
Ultraniederohmige Chip-Widerstände für Stromerfassung
Die ultraniederohmigen Chip-Widerstände zur Stromerfassung sind auf niedrigen Widerstand ausgelegt. Sie basieren auf einem Widerstandselement aus Metall, das für hohe Stromstärken geeignet ist und schnittfrei konstruiert wurde. Somit wird ein präziser Widerstand zur genauen Stromerfassung und für Schaltungen mit hohen Stromstärken erzielt.
Lineup
Produktdetails
Spezifikationen:
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]
-65 to 155, -55 to 155
Type
For current sensing
Operating Temperature (Max.)[°C]
155
Common Standard
AEC-Q200 (Automotive Grade)
Eigenschaften:
・Bessere Wärmeableitung durch die originale Struktur ohne Trimmen (Widerstandselement) von ROHM.・Äußerst geringer Ohmwert von 1 mOhm. Hervorragende Temperaturkoeffizientencharakteristik (+/- 100 ppm/℃)
・Alle Teilenummern sind komplett Pb-frei.
Referenzdesign / Anwendungsevaluierungskit
-
- 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.
[TPPFCSIC-EVK-301_SW.zip Download]
