TMR7308-0500B MULTIDIMENSION | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 10
Technical content
Description
TMR7308-B is a closed loop current sensor for accurate measurement of DC, AC, pulsed current and arbitrary waveform current with galvanic isolation between primary and secondary circuits. Board Mount Precision Current Sensor TMR7308-B Insulation and Environmental Characteristics Parameters Symbol Typ. Unit Dielectric Strength VD 5 kV(50 Hz, 1 min) Insulation Resistance RIS 500 MΩ Creepage Distance dCP 10.7 mm Clearance dCL 10.7 mm Ambient Operating Temperature TA -40 to +85 °C Ambient Storage Temperature TSTG -40 to +85 °C Mass m 18 g Selection Guide Part Number Primary Nominal Current Primary Current Measuring Range TMR7308-0500B 50 A ±150 A TMR7308-1000B 100 A ±280 A Features and Benefits
- High accuracy
- Low temperature coefficient
- Galvanic isolation
- High immunity to external interference
- Excellent linearity
- Light weight design
- RoHS & REACH compliant
Applications
- Computer numerical control system (CNC)
- Inverter
- DC motor drives
- Inverter and variable frequency drives (VFD)
- Uninterruptible power supplies (UPS)
- Telecom power supplies Datasheet MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ Version 1.1
Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7308-0500B - 50 - A Primary Current Measuring Range IPM TMR7308-0500B -150 - 150 A Sensitivity S IP = 0 to ±IPN - 0.5 - mA/A Number of secondary turns NS - - 2000 - - Output Current IOUT IP = 0 to ±IPM - IOE + S × IP - mA Supply Voltage VCC ±5 % - ±15 - V Current Consumption IC IP = 0 - 15 - mA Secondary Coil Resistance RS TA = +25 °C - 64 - Ω Measuring Resistance RM TA = +85 °C, IPM ≤ 50A 120 - 480 Ω Static Performance Data Accuracy XG % IPN TA = -40 °C to +85 °C, IP = 0 to ±IPN -1 - 1 Linearity Error εL TA = -40 °C to +85 °C, IP = 0 to ±IPN - 0.1 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99.5 100 100.5 % Sensitivity Error εS TA = -40 °C to +85 °C, IP = 0 to ±IPN -0.5 - 0.5 % Offset Error IOE Hysteresis IOH TA = -40 °C to +85 °C, IP = ±IPN → 0 - ±0.2 - mA Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 200 - kHz TA = +25 °C, VCC = ±15 V, RM = 120 Ω, unless otherwise noted 1. TMR7308-0500B Specifications TMR7308-B Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7308-1000B - 100 - A Primary Current Measuring Range IPM TMR7308-1000B -280 - 280 A Sensitivity S IP = 0 to ±IPN - 0.5 - mA/A Number of secondary turns NS - - 2000 - - Output Current IOUT IP = 0 to ±IPM - IOE + S × IP - mA Supply Voltage VCC ±5 % ±12 ±15 - V Current Consumption IC IP = 0 - 15 - mA Secondary Coil Resistance RS TA = +25 °C - 42 - Ω Measuring Resistance RM TA = +85 °C, IPM ≤ 50A 60 - 220 Ω Static Performance Data Accuracy XG % IPN TA = -40 °C to +85 °C, IP = 0 to ±IPN -1 - 1 Linearity Error εL TA = -40 °C to +85 °C, IP = 0 to ±IPN - 0.1 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99.5 100 100.5 % Sensitivity Error εS TA = -40 °C to +85 °C, IP = 0 to ±IPN -0.5 - 0.5 % Offset Error IOE Hysteresis IOH TA = -40 °C to +85 °C, IP = ±IPN → 0 - ±0.2 - mA Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 200 - kHz TA = +25 °C, VCC = ±15 V, RM = 60 Ω, unless otherwise noted 2. TMR7308-1000B Specifications TMR7308-B Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
- Parameters Definition And Formula 1) Output Current IOUT = IOE + S × IP IOUT stands for current sensor output current at given primary current, IOE stands for offset error, S stands for sensitivity, IP stands for primary current. 2) Accuracy XG = MAX IP ∈ [-IPN, IPN] IOUT - (S × IP) S × IPN × 100% IPN stands for nominal primary current 3) Sensitivity S = IOUT(@ IPN) - IOUT(@ -IPN) 2 × IPN IOUT@ IPN and IOUT@-IPN stand for the current output at IPN and -IPN respectively. 4) Linearity εL = MAX IP ∈ [-IPN, IPN] IOUT - I̅OE + S × IP S × IPN × 100% S and I̅OE stand for the average values of the sensitivity and offset error. 5) Symmetry εSYM = IOUT(@ IPN) - I̅OE IOUT(@ -IPN) - I̅OE × 100% 6) Hysteresis IOH = MAX ∆H ∆H is the maximum residual output current between full scale positive and negative nominal current. TMR7308-B Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
5.2 Mounting Recommendation
5.3 Remarks
- Mounting method: PCB through hole mount
- Primary pin dimensions: 6 pins 1.4 mm × 1 mm
- Primary through hole dimensions: Hole diameter 2 mm
- Secondary pin dimensions: 3 pins 0.64 mm × 0.64 mm
- Secondary through hole dimensions: Hole diameter 1.2 mm
5.1 Electrical Connection
Figure 7. Electrical Connection
- Wave soldering profile max temperature should be set no higher than 260 °C for 10 s.
- Temperature of the primary busbar should not exceed 100 °C.
- IOUT is positive when the primary current (I P) is in the same direction as the arrow indication on the label
- Improper connection may result in permanent damage of the sensor.
- Power must be disconnected when installing the current sensor, and any other components should be
- Sensor is customizable upon request.
MultiDimension Technology Co., Ltd.
Figure 8. TMR7308-B PCB layout MultiDimension Technology Co., Ltd.
Figure 9. TMR7308-B Dimension (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.
No.2 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, China Web：www.dowaytech.com/en E-mail：info@dowaytech.com Copyright © 2023 by MultiDimension Technology Co., Ltd. Information furnished herein by MultiDimension Technology Co., Ltd. (hereinafter MDT) is believed to be accurate and reliable. However, MDT disclaims any and all warranties and liabilities of any kind, with respect to any examples, hints or any performance or use of technical data as described herein and/or any information regarding the application of the product, including without limitation warranties of non-infringement of intellectual property rights of any third party. This document neither conveys nor implies any license under patent or other industrial or intellectual property rights. Customer or any third-party must further determine the suitability of the MDT products for its applications to avoid the applications default of customer or third-party. MDT accept no liability in this respect. MDT does not assume any liabilities of any indirect, incidental, punitive, special or consequential damages (including without limitation of lost profi ts, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, MDT’s aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of MDT. Absolute maximum ratings are the extreme limits the device will withstand without damage to the MDT product. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached. MDT disclaims any and all warranties and liabilities of the MDT product will operate at absolute maximum ratings. Specifi cations may change without notice. Please download latest document from our offi cial website www.dowaytech.com/en. Recycling The product(s) in this document need to be handed over to a qualifi ed solid waste management services company for recycling in accordance with relevant regulations on waste classifi cation after the end of the product(s) life.