MCS1800

MCS1800 MPS | Alldatasheet

Document overview

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Technical content

3.3V, Linear Hall-Effect Current Sensor with ±3% Accuracy Over Temperature MCS1800 Rev. 1.0 MonolithicPower.com 1 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved.

DESCRIPTION

The MCS1800 is a linear Hall -effect current sensor for AC or DC current sensing . The Hall array is differential, which cancels out any stray magnetic field. A primary conductor with a low resistance allows current to flow close to the IC, which contains high-accuracy Hall-effect sensors. This current generates a magnetic field that is sensed at two different points by the integrated Hall-effect transducers. The magnetic field difference between these two points is then converted into a voltage that is proportional to the applied current. A spinning current technique is used for a low stable offset. The galvanic isolation between the pins of the primary conductive path and the sensor leads allows the MCS1800 to replace opto-isolators or other isolation devices. The MCS1800 requires a minim al number of readily available, standard external components. The device’s small footprint saves board area and makes it well -suited for space -constrained applications. The MCS1800 is available in an SOIC-8 package.

FEATURES

 3.3V Single Supply  Immune to External Magnetic Fields by Differential Sensing  200VRMS Working Voltage for Basic Isolation  Operating Temperature: -40°C to +125°C  1.2mΩ Internal Conductor Resistance  ±12.5A and ±25A Range  Adjustable Bandwidth Up to 100 kHz  4μs Output Rising Time  Ratiometric Output from Supply Voltage  Output Proportional to AC or DC Currents  Factory-Trimmed for Accuracy  No Magnetic Hysteresis  Integrated Shield Suppressing Capacitive Coupling from Current Conductor to Die (Up to 10V/ns)  Available in an SOIC-8 Package

APPLICATIONS

 Motor Control  Automotive Systems  Load Detection and Management  Switch-Mode Power Supplies  Over-Current Fault Protection All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademark s of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION MCS1800 IP+ IP+ IP- IP- VCC VOUT FILT GND CF IP CBYP 0.1µF 3.3V VOUT Note: 1) VOUT is proportional to IP within the specified range. The noise vs. bandwidth tradeoff can be adjusted by connecting a capacitor (CF) between FILT and GND.

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 2 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved.

ORDERING INFORMATION

Part Number* Optimized Primary Current Range(A) Typ. Sensitivity (SENS) (mV/A) Top Marking MSL Rating MCS1800GS-12 ±12.5 110 MC180012 MCS1800GS-25 ±25 55 MC180025 * For Tape & Reel, add suffix –Z (e.g. MCS1800GS-12–Z). TOP MARKING (MCS1800GS-12) MC180012: Part number LLLLLLLL: Lot number MPS: MPS prefix Y: Year code WW: Week code TOP MARKING (MCS1800GS-25) MC180025: Part number LLLLLLLL: Lot number MPS: MPS prefix Y: Year code WW: Week code

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 3 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. PACKAGE REFERENCE TOP VIEW IP+ IP+ IP- IP- VCC VOUT FILT GND SOIC-8 (5mmx4mm)

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 4 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. PIN FUNCTIONS Pin # Name Description 1, 2 IP+ Primary current (+). IP+ is a terminal for the current being sampled. These pins are internally connected together. 3, 4 IP- Primary current (-). IP- is a terminal for the current being sampled. These pins are internally connected together. 5 GND Ground. Signal ground terminal. 6 FILT Filter. FILT is a terminal for the external capacitor (CF), which sets the bandwidth. FILT can be left floating when bandwidth setting is not required. 7 VOUT Analog output. 8 VCC Voltage supply. Connect VCC to a 3.3V power supply.

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 5 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. ABSOLUTE MAXIMUM RATINGS 2) ESD Ratings Pin 6, Pin 7, and Pin 8 Pin 5, Pin 6, Pin 7, and Pin 8 Recommended Operating Conditions 3) Notes: 2) Exceeding these ratings may damage the device. 3) The device is not guaranteed to function outside of its operating conditions.

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 6 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. ISOLATION CHARACTERISTICS Parameters Symbol Condition Rating Units Withstand isolation voltage VISO Agency ty pe-tested for 60 seconds in accordance with IEC62368-1. 100% Production tested at 1.2 x VISO for 1 second.

1000 VRMS

working voltage VIOWM Maximum approved working voltage, according to IEC62368-1.

280 VPK

200 VRMS or VDC

External clearance CLR Shortest distance through the air from the IP leads to the signal leads. 4.2 mm External creepage CPG Shortest distance along the package body from the IP leads to the signal leads. 4.2 mm

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 7 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. MCS1800 COMMON ELECTRICAL CHARACTERISTICS 4) Typical values are at VCC = 3.3V, CF = 0nF, CL = 1nF, TJ = -40°C to +125°C, unless otherwise noted. Parameters Symbol Condition Min Typ Max Units Supply voltage VCC 3.0 3.6 V VCC under-voltage lockout threshold VCCUVLO VCC rising 2 2.5 3 V VCC under-voltage lockout hysteresis VCCUVLO_HYS 400 750 mV Operating supply current ICC VCC = 5V 8.5 10.5 mA Output capacitance load (10) CL From VOUT to GND 10 nF Output resistive load (10) RL From VOUT to GND 4.7 kΩ Primary conductor resistance (12) RP Effective 1.2 mΩ Frequency bandwidth (10) fBW FILT disconnected 100 kHz Internal filter resistance (9) RFi 1.5 kΩ Internal filter capacitance (8) CFi 1 nF Power on time (10) tPO IP = IPMAX, FILT disconnected 90 µs Rise time (10) tR IP = IPMAX, FILT disconnected 4 µs Propagation delay (10) tPD IP = IPMAX, FILT disconnected 1.5 µs Response time (10) tRESPONSE IP = IPMAX, FILT disconnected 5 µs Noise density (10) IND Input referred noise density 200 μA(RMS)/ √Hz Noise (10) IN Input referred, 1nF on FILT (60kHz Bandwidth) 50 mA(RMS) Nonlinearity (10) ELIN Over full range of IP 0.5 % Ratiometry KSENS VCC = 4.5 to 5.5V 97.5 100 102.5 % KV0 VCC = 4.5 to 5.5V, IP = 0A 99 100 101 % Zero current output voltage VOUT(Q) (IP = 0) IP = 0A VCC / 2 V First Hall magnetic coupling factor (9) PMCF1 1.1 1.2 1.3 mT/A Second Hall magnetic coupling factor (9) PMCF2 0.60 0.65 0.70 mT/A Hall plate matching (10) MH ±1 % Saturation voltage (5) VOUT(H) RL = 4.7kΩ, TJ = 25°C VCC - 0.3 V VOUT(L) RL = 4.7kΩ, TJ = 25°C 0.3 V

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 8 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. MCS1800-12 PERFORMANCE CHARACTERISTICS 4) VCC = 3.3V, CF = 0nF, CL = 1nF, TJ = -40°C to +125°C, unless otherwise noted. Parameters Symbol Condition Min Typ 11) Max Units Optimized accuracy range (6) IP -12.5 +12.5 A Sensitivity SENS -12.5A ≤ IP ≤ +12.5A, TJ = 25°C 110 mV/A Sensitivity error ESENS IP = 12.5A, TJ = 25°C to 125°C -2.5 +2.5 % IP = 12.5A, TJ = -40°C to +25°C ±2 % Offset voltage (7) VOE IP = 0A, TJ = 25°C to 125°C -15 +15 mV IP = 0A, TJ = -40°C to +25°C ±10 mV Total output error (8) ETOT IP = 12.5A, TJ = 25°C to 125°C -3 +3 % Sensitivity error lifetime drift (10) ESENS(D) ±1 % Total output error lifetime drift 10) ETOT(D) ±1 % MCS1800-25 PERFORMANCE CHARACTERISTICS 4) VCC = 3.3V, CF = 0nF, CL = 1nF, TJ = -40°C to +125°C, unless otherwise noted. Parameters Symbol Condition Min Typ 11) Max Units Optimized accuracy range (6) IP -25 +25 A Sensitivity SENS -25A ≤ IP ≤ +25A, TJ = 25°C 55 mV/A Sensitivity error ESENS IP = 25A, TJ = 25°C to 125°C -2.5 +2.5 % IP = 25A, TJ = -40°C to +25°C ±2 % Offset voltage (7) VOE IP = 0A, TJ = 25°C to 125°C -15 +15 mV IP = 0A, TJ = -40°C to +25°C ±10 mV Total output error (8) ETOT IP = 25A, TJ = 25°C to 125°C -3 +3 % IP = 25A, TJ = -40°C to +25°C ±2.5 % Sensitivity error lifetime drift (10) ESENS(D) ±1 % Total output error lifetime drift (10) ETOT(D) ±1 % Notes: 4) See the Operation section on page 12 for more details. 5) Beyond the maximum specified current range (I P), the current sensor continues to provide an analog output v oltage proportional to the primary current until the device reaches the high or low saturation voltage. However, the nonlinearity increases beyond the specified range (IP). 6) The device can operate at higher primary current levels (I P) and ambient temperatures (T A), as long as the device does not exceed the maximum junction temperature (TJ (MAX)). 7) The offset voltage does not incorporate any error due to external magnetic fields. 8) Percentage of IP, when IP = IP_MAX. The output is filtered. 9) Guaranteed by design. 10) Guaranteed by characterization. 11) Typical values denoted with the “±” sign signify ±3 sigma values. The resistance is defined as the total resistance measured from a point of the lead next to the solder joint , assuming that the two IP+ pins (and IP- pins) have the same potential (see Figure 1). This definition corresponds to the effective resistance used to estimate the Joule heating, calculated with R x IP Figure 1: Total Resistance

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 9 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS MCS1800GS-12, unless otherwise noted. -15 -10 -60 -40 -20 0 20 40 60 80 100 120 140 OFFSET VOLTAGE (mV) TEMPERATURE (°C) Offset Voltage vs. Temperature Mean -3sigma +3sigma 107 108 109 110 111 112 113 -60 -40 -20 0 20 40 60 80 100 120 140 SENSITIVITY (mV/A) TEMPERATURE ( C) Sensitivity vs. Temperature Mean -3sigma +3sigma -2.5 -1.5 -0.5 0.5 1.5 2.5 -60 -40 -20 0 20 40 60 80 100 120 140 SENSITIVITY ERROR (%) TEMPERATURE ( C) Sensitivity Error vs. Temperature Mean -3sigma +3sigma -2.5 -1.5 -0.5 0.5 1.5 2.5 -60 -40 -20 0 20 40 60 80 100120140 TOTAL ERROR (%) TEMPERATURE ( C) Total Error vs. Temperature Mean -3sigma +3sigma

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 10 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS MCS1800GS-25, unless otherwise noted. -15 -10 -60 -40 -20 0 20 40 60 80 100 120 140 OFFSET VOLTAGE (mV) TEMPERATURE (°C) Offset Voltage vs. Temperature Mean -3sigma +3sigma 54.5 55.5 56.5 -60 -40 -20 0 20 40 60 80 100 120 140 SENSITIVITY (mV/A) TEMPERATURE ( C) Sensitivity vs. Temperature Mean -3sigma +3sigma -1.5 -0.5 0.5 1.5 2.5 -60 -40 -20 0 20 40 60 80 100 120 140 SENSITIVITY ERROR (%) TEMPERATURE ( C) Sensitivity Error vs. Temperature Mean -3sigma +3sigma -1.5 -0.5 0.5 1.5 2.5 -60 -40 -20 0 20 40 60 80 100120140 TOTAL ERROR (%) TEMPERATURE ( C) Total Error vs. Temperature Mean -3sigma +3sigma

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 11 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. FUNCTIONAL BLOCK DIAGRAM IP+ IP+ IP- IP- Dynamic Offset Cancellation POR Regulator Hall Driver Power Supply Control Logic Temperature Sensor Sensitivity Control EA+ Offset Control Pre-Setting IP GND VOUT VOUT VCC 3.3V MCS1800 HallHall FILT RFi CF CFi Figure 2: Functional Block Diagram

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 16 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. TYPICAL APPLICATION CIRCUITS (Optional) VCCMCS180x IP+ IP- IP- IP+ VCC VOUT FILT GND IP+ IP- 4 5 1μF VOUT GND Figure 12: Typical Application Circuit

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 17 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved.

PACKAGE INFORMATION

DETAIL "A" 0.010(0.25) 0.020(0.50) x 45o SEE DETAIL "A" 0.150(3.80) 0.157(4.00)PIN 1 ID 0.050(1.27) BSC 0.013(0.33) 0.020(0.51) SEATING PLANE 0.004(0.10) 0.010(0.25) 0.189(4.80) 0.197(5.00) 0.053(1.35) 0.069(1.75) TOP VIEW FRONT VIEW 0.228(5.80) 0.244(6.20) SIDE VIEW 1 4 8 5 RECOMMENDED LAND PATTERN 0.213(5.40) 0.063(1.60) NOTE: 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION, OR GATE BURR. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX. 5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA. 6) DRAWING IS NOT TO SCALE. 0.010(0.25) BSC GAUGE PLANE

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY MCS1800 Rev. 1.0 MonolithicPower.com 18 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved. CARRIER INFORMATION Part Number Package MCS1800GS-12–Z SOIC-8 2500 N/A N/A 13in 12mm 8mm MCS1800GS-25–Z SOIC-8 2500 N/A N/A 13in 12mm 8mm Pin1 ABCD ABCD ABCD ABCD1 1 1 1 Feed Direction

MCS1800 – 3.3V, LINEAR HALL-EFFECT CURRENT SENSOR WITH ±3% ACCURACY Notice: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third-party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MCS1800 Rev. 1.0 MonolithicPower.com 19 4/13/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2021 MPS. All Rights Reserved.

REVISION HISTORY

Revision # Revision Date Description Pages Updated 1.0 4/13/2021 Initial Release -