TMR7304 MULTIDIMENSION | Alldatasheet

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Technical content

Description

TMR7304 is a close 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 TMR7304 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 7.2 mm Clearance dCL 7.2 mm Ambient Operating Temperature TA -40 to +85 °C Ambient Storage Temperature TSTG -50 to +105 °C Mass m 12 g Features and Benefits

  • High accuracy
  • Excellent linearity
  • Low temperature coefficient
  • Fast response time
  • Galvanic isolation
  • RoHS & REACH compliant

Applications

  • Solar inverter
  • Direct-current dynamo
  • Uninterruptible power supplies (UPS)
  • Switched model power supplies (SMPS)
  • Variable frequency drive (VFD) TMR7304-B TMR7304-C TMR7304-D TMR7304-E Selection Guide Part Number Primary Nominal Current Primary Current Measuring Range Part Number Primary Nominal Current Primary Current Measuring Range TMR7304-0060B 6 A ±20 A TMR7304-0060C 6 A ±20 A TMR7304-0150B 15 A ±51 A TMR7304-0150C 15 A ±51 A TMR7304-0250B 25 A ±85 A TMR7304-0250C 25 A ±85 A TMR7304-0500B 50 A ±150 A TMR7304-0500C 50 A ±150 A TMR7304-0060D 6 A ±20 A TMR7304-0250D 25 A ±85 A TMR7304-0150D 15 A ±51 A TMR7304-0500D 50 A ±150 A TMR7304-0750E 75 A ±180 A 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/

  1. TMR7304-B Specifications TA = +25 °C, VCC = 5 V, RL = 10 kΩ, unless otherwise noted Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7304-0060B - 6 - A TMR7304-0150B - 15 - TMR7304-0250B - 25 - TMR7304-0500B - 50 - Primary Current Measuring Range IPM TMR7304-0060B -20 - 20 A TMR7304-0150B -51 - 51 TMR7304-0250B -85 - 85 TMR7304-0500B -150 - 150 Sensitivity S IP = 0 to ±IPN TMR7304-0060B - 104.2 - mV/A TMR7304-0150B - 41.67 - TMR7304-0250B - 25 - TMR7304-0500B - 12.5 - Supply Voltage VCC ±5 % - 5 - V Offset Voltage VOFF - 2.490 2.5 2.510 V Output Voltage VOUT IP = 0 to ±IPM - VOFF + S × IP - V Current Consumption IC IP = 0 - 12 - mA Static Performance Data Accuracy XG TA = 25 °C, IP = 0 to ±IPN - ±0.8 - % IPNTA = 85 °C, IP = 0 to ±IPN TMR7304-0060B - 1.4 - TMR7304-0150B - 1.2 - TMR7304-0250B - 1.15 - TMR7304-0500B - 1.1 - Linearity Error εL IP = 0 to ±IPN - ±0.3 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99 100 101 % Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 300 - kHz TMR7304 Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
  1. TMR7304-C Specifications TA = +25 °C, VCC = 5 V, RL = 10 kΩ, unless otherwise noted Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7304-0060C - 6 - A TMR7304-0150C - 15 - TMR7304-0250C - 25 - TMR7304-0500C - 50 - Primary Current Measuring Range IPM TMR7304-0060C -20 - 20 A TMR7304-0150C -51 - 51 TMR7304-0250C -85 - 85 TMR7304-0500C -150 - 150 Sensitivity S IP = 0 to ±IPN TMR7304-0060C - 104.2 - mV/A TMR7304-0150C - 41.67 - TMR7304-0250C - 25 - TMR7304-0500C - 12.5 - Supply Voltage VCC ±5 % - 5 - V Reference Output Voltage VREF - 2.490 2.5 2.510 V Offset Voltage VOFF - - 2.5 - V Output Voltage VOUT IP = 0 to ±IPM - VOFF + S × IP - V Current Consumption IC IP = 0 - 12 - mA Static Performance Data Accuracy XG TA = 25 °C, IP = 0 to ±IPN - ±0.8 - % IPNTA = 85 °C, IP = 0 to ±IPN TMR7304-0060C - 1.4 - TMR7304-0150C - 1.2 - TMR7304-0250C - 1.15 - TMR7304-0500C - 1.1 - Linearity Error εL IP = 0 to ±IPN - ±0.3 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99 100 101 % Offset Error VOE TA = +25 °C, IP = 0 -5 - 5 mV Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 300 - kHz TMR7304 Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
  1. TMR7304-D Specifications TA = +25 °C, VCC = 5 V, RL = 10 kΩ, unless otherwise noted Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7304-0060D - 6 - A TMR7304-0150D - 15 - TMR7304-0250D - 25 - TMR7304-0500D - 50 - Primary Current Measuring Range IPM TMR7304-0060D -20 - 20 A TMR7304-0150D -51 - 51 TMR7304-0250D -85 - 85 TMR7304-0500D -150 - 150 Sensitivity S IP = 0 to ±IPN TMR7304-0060D - 104.2 - mV/A TMR7304-0150D - 41.67 - TMR7304-0250D - 25 - TMR7304-0500D - 12.5 - Supply Voltage VCC ±5 % - 5 - V Reference Output Voltage VREF - 2.490 2.5 2.510 V Offset Voltage VOFF - - 2.5 - V Output Voltage VOUT IP = 0 to ±IPM - VOFF + S × IP - V Current Consumption IC IP = 0 - 12 - mA Static Performance Data Accuracy XG TA = 25 °C, IP = 0 to ±IPN - ±0.8 - % IPNTA = 85 °C, IP = 0 to ±IPN TMR7304-0060D - 1.4 - TMR7304-0150D - 1.2 - TMR7304-0250D - 1.15 - TMR7304-0500D - 1.1 - Linearity Error εL IP = 0 to ±IPN - ±0.3 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99 100 101 % Offset Error VOE TA = +25 °C, IP = 0 -5 - 5 mV Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 300 - kHz TMR7304 Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
  1. TMR7304-E Specifications TA = +25 °C, VCC = 5 V, RL = 10 kΩ, unless otherwise noted Parameter Symbol Condition Min. Typ. Max. Unit General Electrical Data Primary Nominal Current IPN TMR7304-0750E - 75 - A Primary Current Measuring Range IPM TMR7304-0750E -180 - 180 A Sensitivity S IP = 0 to ±IPN - 6.25 - mV/A Supply Voltage VCC ±5 % - 5 - V Reference Output Voltage VREF - 2.490 2.5 2.510 V Offset Voltage VOFF - - 2.5 - V Output Voltage VOUT IP = 0 to ±IPM - VOFF + S × IP - V Current Consumption IC IP = 0 - 12 - mA Static Performance Data Accuracy XG TA = 25 °C, IP = 0 to ±IPN - ±0.8 - % IPN TA = 85 °C, IP = 0 to ±IPN - 1.1 - Linearity Error εL IP = 0 to ±IPN - ±0.3 - % IPN Symmetry εSYM TA = -40 °C to +85 °C, IP = 0 to ±IPN 99 100 101 % Offset Error VOE TA = +25 °C, IP = 0 -5 - 5 mV Dynamic Performance Data Response Time tR di/dt > 50 A/μs, 10% to 90% of IPN - 1 - μs Bandwidth BW -3 dB DC 300 - kHz TMR7304 Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/
  1. Parameters Definition And Formula 1) Output Voltage VOUT = VOFF + S × IP VOUT stands for current sensor output voltage at given primary current, VOFF stands for offset voltage, S stands for sensitivity, IP stands for primary current. 2) Accuracy XG = MAX IP ∈ [-IPN, IPN] (VOUT - VREF) - (S × IP) S × IPN × 100% IPN stands for nominal primary current 3) Sensitivity S = VOUT(@ IPN) - VOUT(@ -IPN) 2 × IPN VOUT@ IPN and VOUT@-IPN stand for the current output at IPN and -IPN respectively. 4) Linearity εL = MAX IP ∈ [-IPN, IPN] (VOUT - VREF) - VOE + S × IP S × IPN × 100% S and VOE stand for the average values of the sensitivity and electric offset. 5) Symmetry εSYM = VOUT(@ IPN) - VOFF VOUT(@ -IPN) - VOFF × 100% 6) Hysteresis VOH = MAX ∆H ∆H is the maximum residual output current between full scale positive and negative nominal current. 7) Offset Voltage VOE = VOUT(@ IP = 0) - VREF TMR7304 Board Mount Precision Current Sensor MultiDimension Technology Co., Ltd. http://www.dowaytech.com/en/

Figure 20. Dimension for TMR7304-B (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.

Figure 21. Dimension for TMR7304-C (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.

Figure 22. Dimension for TMR7304-D (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.

Figure 23. Dimension for TMR7304-E (unit: mm, tolerances for unmarked scales ±1 mm) MultiDimension Technology Co., Ltd.

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