TMR7552-E MULTIDIMENSION | Alldatasheet
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Technical content
Description
TMR7552-E is a close loop current sensor based on TMR tunnel magnetoresistance for accurate measurement of DC, AC, pulsed current and arbitrary waveform current with galvanic isolation between primary and secondary circuits. Unibody Precision Current Sensor TMR7552-E Insulation and Environmental Characteristics Parameters Symbol Typ. Unit Dielectric Strength VD 4.2 kV(50 Hz, 1 min) Insulation Resistance RIS 1000 MΩ Creepage Distance dCP 13.9 mm Clearance dCL 11.5 mm Ambient Operating Temperature TA -40 to +85 °C Ambient Storage Temperature TSTG -50 to +105 °C Mass m 8 g Selection Guide Part Number Primary Nominal Current Primary Current Measuring Range TMR7552-0060E 6 A ±19.2 A TMR7552-0150E 15 A ±48 A TMR7552-0250E 25 A ±80 A Features and Benefits
- Ultra low temperature drift
- High accuracy
- Excellent linearity
- Flexible for multiple current ranges
- Fast response time
- Small size, suitable for high density PCB application
- High stable output at 2.5 V
Applications
- Frequency conversion, servo motor traction
- Uninterruptible power supplies (UPS)
- Power supplies for welding application
- Switching power supplies
- Solar combiner box Datasheet MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/ Version 1.0.1
Unibody 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 TMR7552-0060E - 6 - ATMR7552-0150E - 15 - TMR7552-0250E - 25 - Primary Current Measuring Range IPM TMR7552-0060E -19.2 - 19.2 ATMR7552-0150E -48 - 48 TMR7552-0250E -80 - 80 Sensitivity S IP = 0 to ±IPN TMR7552-0060E - 104.17 - mV/ATMR7552-0150E - 41.67 - TMR7552-0250E - 25.00 - Supply Voltage VCC ±5 % - 5 - V Reference Output Voltage VREF - 2.485 2.5 2.515 V Offset Voltage VOFF - - 2.5 - V Output Voltage VOUT IP = 0 to ±IPM - VOFF + 0.625 × IP/IPN - V Current Consumption IC IP = 0 - 14 - mA Load Resistance RL IP = 0 to ±IPN 2 10 - kΩ Static Performance Data Accuracy XG IP = 0 to ±IPN - ±0.5 - % IPN IP = ±IPN to ±IPM - ±1 - Linearity Error εL IP = 0 to ±IPN - ±0.1 - % IPN IP = ±IPN to ±IPM - ±0.25 - Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99 100 101 % Offset Error VOE mV TA = -40 °C to +85 °C, IP = 0 - 15 - Temperature Drift IOST IP = 0 - 100 - PPM/°C Gain Temperature Drift IST IP = 0 to ±IPN - 50 - PPM/°C Hysteresis VOH mVIP = ±3 × IPN → 0 - ±0.5 - Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% of IPN - 60 - ns di/dt > 50 A/μs, 10% to 90% of IPN - 300 - Bandwidth BW 0 to -0.5 dB DC 100 - kHz -0.5 dB to -1 dB 200 - Following Accuracy di/dt - 100 - - A/μs TA = +25 °C, VCC = 5 V, RL = 10 kΩ, unless otherwise noted 1. Specifications TMR7552-E Unibody Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
- Parameters Definition And Formula 1) Accuracy XG = MAX Ip ∈ [-IPN, IPN] VOUT - (IP×S+VOFF) IPN×S ×100% IP stands for primary current, IPN stands for nominal primary current, VOUT stands for current sensor output voltage at given primary current, S stands for sensitivity, VOFF stands for offset voltage. 2) Sensitivity S = VOUT(@ IPN) - VOUT(@ -IPN) 2 × IPN VOUT@ IPN and VOUT@-IPN stand for the voltage output at IPN, -IPN respectively. 3) Linearity εL = MAX Ip ∈ [-IPN, IPN] VOUT - IP×S + VOFF IPN×S ×100% S, VOFF stand for the average values of the sensitivity and offset voltage. 4) Offset Error VOE = VOUT(@IP = 0) - VOFF 5) Hysteresis VOH = MAX ∆H ∆H is the maximum residual voltage between full scale positive and negative nominal current. TMR7552-E Unibody Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
Figure 1. Dimension (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.
Figure 2. Pin configuration and wiring Diagram
7 VREF Reference Voltage Output
8 VOUT Voltage Output
- Pin Configuration and Wiring Diagram
MultiDimension Technology Co., Ltd.
Figure 3. PCB layout
- Wave Soldering Profile: Maximum Temperature 260 °C for 10 s.
- VOUT 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.
- The current sensor must be disconnected from the power supply during installation. No other devices are
allowed in the projection area under the sensor.
- Sensor is customizable upon request.
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 © 2022 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.