71M6103/71M6113/
71M6201/71M6203/
71M6601/71M6603
Isolated Sensor ICs
D ATA SHEET
For pricing, delivery, and ordering i n fo rmation, please contact Maxim Dir ect at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5704; Rev 4; 1/15
GENERAL DESCRIPTI ON
The 71M6103/71M6113/71M6201/71M6203/71M6601/71M6603
(71M6xxx) isolated sensor ICs enable Maxim Integrated’s 4th-
generation polyphase-metering 71M654x systems-on-chips
(SoCs) to use nonisolating sensors such as resistive shunts
without the need for costly and nonlinear isolation transformers
or CTs. Isolation is provided by low-cost pulse transformers that
form a bidirectional digital communication link between the
71M654x and the isolated sensor ICs.
The 71M6xxx isolated sensor ICs contain a 22-bit delta-sigma
ADC, an amplifier with differential inputs, a precision voltage
referenc e, a temper ature sensor, and a supp ly voltage gener ator
that is energized by power pulses provided by the 71M654x.
In conjunction with the 71M654x metering SoCs, the isolated
sensor ICs off er unpr ec ede nted BOM c os t reduc t ion, i m m unit y to
magnetic tampering, and enhanced reliability for single-phase
and polyphase applicat ions .
These metering SoCs operate over the industrial temperature
range and are available in an 8-pin lead( P b) -free SO package.
MPU
RTC
TIMERS
IADC0
VADC8 (VA)
IADC2
VADC9 (VB)
XIN
XOUT
RX
TX
TX
RX
COM0...5
V3P3A V3P3SYS
VBAT
VBAT_RTC
IADC4
VADC10 (VC)
SEG
GNDA GNDD
SEG/DIO
DIO
ICE
C
B
A
NEUTRAL
LOAD
8888.8888
PULSES,
DIO
IR
AMR
POWER FAULT
COMPARATOR
MODUL-
ATOR
SERIAL PORTS
OSCILLATOR/
PLL
MUX and ADC
LCD DRIVER
DIO, PULSES
COMPUTE
ENGINE
FLASH
MEMORY
RAM
32 kHz
REGULATOR
Shunt Current Sensors
POWER SUPPLY
71M6543F/
71M6543H
TEMPERATURE
SENSOR
VREF
IADC6
BATTERY
PWR MODE
CONTROL
WAKE-UP
NEUTRAL
I2C or µWire
EEPROM
9/17/2010
IADC1
IADC3
IADC5
IADC7
RTC
BATTERY
V3P3D
BATTERY
MONITOR
SPI INTERFACE
HOST
LCD DISPLAY
Resistor Dividers
Pulse Transformers
3x 71M6xx3
Note: This system is referenced to Neutral
71M6xx3
71M6xx3
71M6xx3
}IN*
}IA
}IB
}IC
*IN = Neutral Current
BENEFITS AND FEATURES
• Reduce BOM b y Replacing Expensive
Current Transformers with Current Shu nts
• Compat ible with Shunt Resistors as
Low as 50µΩ
• Accurate Measurement
• 22-Bit ADC
• On-Chip Power Monitoring
• Exceeds IEC 62053/ANSI C12.20
Standards
• Galvanic Isolation Through Pulse
Transformer Provides Power, Bidirectional
Data, and Timing Reference
• 3.3mW Typical Consumption
• On-Chip Power Monitoring
71M6xxx Data Sheet
2
Table of Cont e nt s
1 Hardware Description ................................................................................................................. 4
2 Functional Description ............................................................................................................... 4
3 Applications Information ........................................................................................................... 5
3.1 Product Selection ...................................................................................................................... 5
3.2 External Components for the 71M6xxx ................................................................................... 6
3.2.1 Curr ent Sens or Si de ........................................................................................................ 6
3.2.2 Pulse Transformer ........................................................................................................... 6
3.3 Connections to Sensors and to the 71M654x ......................................................................... 7
3.4 PCB Layout Considerations ..................................................................................................... 9
3.5 Compatibility with the 71M654x ............................................................................................. 10
4 Specifications ............................................................................................................................ 11
4.1 Absolute Maximum Ratings .................................................................................................... 11
4.2 Recommended Extern al Components ................................................................................... 11
4.3 Recommended Operating Conditions ................................................................................... 11
4.4 Performance Specifications.................................................................................................... 12
4.4.1 Supply Current ............................................................................................................... 12
4.4.2 Power and Data Pulses ................................................................................................. 12
4.4.3 VCC Voltage Monitor ..................................................................................................... 12
4.4.4 Temperature Sensor ...................................................................................................... 12
4.4.5 VREF Performance Specifications ................................................................................ 13
4.4.6 ADC Converter............................................................................................................... 14
4.5 Typical Performance Data ....................................................................................................... 15
4.6 Package Outline Drawing ........................................................................................................ 16
4.7 IC Pinout ................................................................................................................................... 17
4.8 Pin Description ......................................................................................................................... 17
5 Ordering Information ................................................................................................................ 18
6 Related Information .................................................................................................................. 18
7 Contact Info rmation .................................................................................................................. 18
71M6xxx Data Sheet
3
List of Figures
Figure 1: Block Diagram ................................................................................................................................ 4
Figure 2: External Components Connected to the 71M6xxx ........................................................................ 7
Figure 3: Current Sensors Connected to the 71M6541D/F Using One 71M6x01 ........................................ 8
Figure 4: Current Sens or s Connected to the 71M6543F/H or 71M6545/H with Three 71M6xx3 ................. 9
Figure 5: Copper Separation and Signal Traces for a Polyphase PCB ...................................................... 10
Figure 6: Wh Error at Room Temperature (71M6203, 100A/0.1A, 60Hz/240V AC) ................................... 15
Figure 7: VARh Error at Room Temperature (71M6203, 100A/0.1A, 60Hz/240V AC) ............................... 15
Figure 8: SOIC-8 Pac k age O utli ne ............................................................................................................. 16
Figure 9: Pinout for 8-Pin SO Package ....................................................................................................... 17
List of Tables
Table 1: Remote Interface Commands ......................................................................................................... 5
Table 2: Product Variations ........................................................................................................................... 6
Table 3: Absolute Maximum Ratings .......................................................................................................... 11
Table 4: Recommended External Components .......................................................................................... 11
Table 5: Recommended Operating Conditions ........................................................................................... 11
Table 6: Supply Current Performance Specifications ................................................................................. 12
Table 7: Timing Specifications for Power and Data Pulses ........................................................................ 12
Table 8: VCC Volta ge Mon i tor Spec if icati ons ............................................................................................. 12
Table 9: Temperature Sensor Specifications .............................................................................................. 12
Table 10: VREF Performance Specifications .............................................................................................. 13
Table 11: ADC Converter Specifications .................................................................................................... 14
Table 12: Pin Description ............................................................................................................................ 17
Table 13: Product Variations ....................................................................................................................... 18
Table 14: Packaging Information, Corresponding CE Codes, and Ordering Numbers .............................. 18
71M6xxx Data Sheet
4
1 HARDWARE DES CRIPTIO N
The 71M6103/71M6113/71M6201/71M6203/71M6601/71M6603 (71M6xxx) remote sensor ICs integrate
all functional blocks required to implement an isolated front-end with digital communication capability.
Figure 1 shows the 71M6xxx IC block diagram. The chip includes the following:
• Preamplifier with a fixed gain
• 22-bit delta-sigma ADC
• ADC voltage reference
• Temperature sensor
• VCC monitor
• Power-on reset circuitry
• Bidirectional pulse interface
• Active rectifiers for supply-voltage generation from the power pulses provided by the 71M654x
• Digital control section providing control registers for the selection of operation modes
SP
SN
PLL
PULSEIO
Secondary
ACTIVE
RECTI-
FIERS
GND VCC
RD_DATA
DIGITAL SECTION
INP
INN
ADC
ADC_CLK ADC_OUT
BAND
GAP
CHOP
+
IBIAS TEMP/VCC
MONITOR
OTP MEMORY
BUFFER
VREF
VBIAS
TEST
DATA_IN[15:0]
CROSS
VCC
WR_DATA
POWER
ON
RESET RESET
RD_CLK
VDD
RD_DATA
PREAMP
+
-
-
Primary
1:1.1
To
71M654X
SHUNT
Figure 1: Block Diagram
2 FUNCTIONAL DESCRIPTION
During normal operation, the SP and SN pins of the 71M6xxx are connected to the pulse transformer.
When PLL_FAST = 1 in the 71M654x, power pulses generated by the 71M654x arrive every 610.35ns.
The PLL in the 71M6xxx locks to these incoming power pulses. The communication between the
71M654x and the 71M6xxx is synchronized to the multiplexer frames of the 71M654x. The
comm unication protoc ol is Maxim Integrated-proprietary, and de tails are not d escribed in this d ata sheet.
All aspects of the com munication between t he 71M654x and th e 71M6xxx are manag ed on the har dware
level and they are completely transparent to the user.
The communication interface can run at two different data rates. Power pulses are generated every
610.35ns if the PLL_FAST register in the 71M654x is set to 1, and every 1.905µs if PLL_FAST is set to 0.
The power pulses are 101.7ns wide with PLL_FAST = 1, and 160ns wide with PLL_FAST = 0.
71M6xxx Data Sheet
5
The 71M6xxx isolated sensors provide a continuous data stream of ADC data plus an independent data
stream that contains auxiliary information as requested by the 71M654x. The ADC data is processed by
CE code in the 71M654x and stored in CE RAM. Auxiliary information is processed by the MPU of the
71M654x using I/O RAM registers.
Basic settings and functions of the 71M6xxx can be controlled by various I/O RAM registers in the
71M654x. T he comm and sent towards the 71M6xxx is placed in the RCMD[4:2] register of the 71M654x,
with further specification contained in the TMUXRn[2:0] register. Refer to the 71M654x data sheets for
details.
Table 1 shows the allowable com binations of values in RCMD[4:2] and TMUXRn[2:0] , and the achieved
operation along with the type and format of data sent back by the 71M6xxx isolated sensors.
Table 1: Remote Interface Commands
RCMD[4:2] TMUXRn[2:0]
Read
Operation/Command
R6K_RD [15:0]
001
00X
Chip-characteristic
temperature data
001
01X
001
10X
001 11X
010
00X
Temperature
010
01X
Suppl y voltage
010
10X
Chip version
110
111
Reset
Note: TRIMBGA to TRIMBGD and TRIMT are values used for characterizing the individual 71M6xxx over temperature. Avail abi lity
of TRIMBGA to TRIMBGD and TRIMT depends on the part number (see Table 10 for details).
The rem ote interfac e comm ands listed in Tabl e 1 enabl e the 71M654x to gather the following inf orm ation
from the 71M6xxx:
• Output of the temperature sensor
• Information on how the device is characterized over temperature
• Suppl y voltage
• Chip version code
The control commands listed in Table 1 enable the 71M654x to initiate the following actions in the
71M6xxx:
• Read the 71M6xxx temperature sensor
• Read the 71M6xx x VCC sensor
• Hardware reset
W ith hard ware and temperature characterization inf ormation on eac h connected 71M6xxx isolated sensor
available to the 71M654x host MPU, temperature compensation of the energy measurement can be
implemented based on the individual temperature characteristics of the 71M6xxx isolated sensors. For
example, when the 71M6xxx are used in a polyphase meter containing three shunt resistors, the
temperature increase in each 71M6xxx can be monitored and used to compensate for the temperature
coefficient of the 71M6xxx VREF and the corresponding shunt resistor.
3 APPLICATIONS INFORMATION
3.1 Product Selection
A low-no ise diff erential-inp ut pream plifier app lies gain to the si gnal from the curr ent sensor to the opt imal
input ran ge of the A DC . T he c urr ent s ens or is conn ec t ed to the in puts of th e pr e a mplif ier through INP an d
INN. The output of the preamplif ier connects directl y to the input of the ADC. See 5 O rdering Inform ation
for available part types. Shunt resistances from 736µΩ to as low as 50µΩ can be accommodated,
depending on desired current range and part type.
71M6xxx Data Sheet
6
The shunt resistance must be balanced with the maximum current range of the part type, as shown in
Table 2. V arious com binations of current ranges a nd shunt resis tance values ar e possible. H owever, the
shunt resistance for a given current has to be chosen carefully as not to exceed the maximum RMS
voltage at the INP/INN pins of the 71M6xxx. The maximum wattage of the shunt resistor is another
consideration that applies to the resistance range of the shunt.
Table 2: Product Variations
Part Application1 Maximum
Current
(A)
Accuracy
Class2
(%)
Maximum
RMS
Voltage at
INP/INN
(mV)
Maximum
Shunt
Resistance3
(
µΩ)
Shunt
Power4
(W)
Typical
Shunt
Resistance5
(
µΩ)
71M6601
S
60
1
44 736 1.44 400
71M6603
P
1
71M6103
P 100
1
19.6 196 1.2 120
71M6113
0.5
71M6201
S
200
0.2
12.6 63 2.0 50
71M6203
P
0.2
Note 1: S = single phase, P = polyphase.
Note 2: Accuracy over temperature (-40°C to +85°C for 71M620x parts, -20°C to +60° for all other parts), when combined with
71M654x or 71M654xH IC.
Note 3: Maximum resistance at maximum current.
Note 4: Power at maximum current and typical shunt resist anc e.
Note 5: Typical resistance val ues provide room for overhead while m aintai ni ng optim um dynamic range.
The inputs of the pream plifier are referenced to local ground ( the GND pin of the 71M6xxx). This m eans
that in an isolated system, the INP and INN pins have to be biased towards this local GND. See 3.2.1
Current Sensor Side for details.
3.2 External Components for the 71M6xxx
3.2.1 Current Sensor Side
Figure 2 shows the external components required for the 71M6xxx. It is recommended to use the
following components:
• 1.0µF capacitor between the GND and VCC pins. This capacitor minimizes the VCC ripple
voltage.
• One 1kΩ r esistor each from the s ensor output pi ns to GND. Thes e resis tors help to bias the i nput
voltage at the INP and INN pins towards GND.
• In environm ents where EMC is a c onc ern, f errite bead s can be plac ed bet ween t he sens e pins of
the shunt resistor and the INP/INN pins of the 71M6xxx.
3.2.2 Pulse Transformer
A low-cost pulse transformer is used for the link between the 71M654x and the 71M6xxx. It is the
responsibility of the meter system designer to qualify the transformer used in the system over the required
operating temperature range. The following commercially available transformer is suitable for this
application:
• Würth Electronics Midcom Inc., P/N 750-11-0056 REV 2 (www.midcom-inc.com)
71M6xxx Data Sheet
7
Current Shunt
Sensor
Pulse
Transformer
71M654x
71M6xxx
VCC
GND
INP
INN
SP
SN
1 kΩ
1 kΩ
1.0 µF
V3P3A
VA
IAP
IAN
Load
Voltage
Sensing
8 2 34
5671
R1
R2
C1
TEST
NC
Figure 2: External Components Conn ected to the 71M6xxx
3.3 Connections to Sensors and to the 71M654x
Figure 3 shows the sensor connections for single-phase meter application using a 71M6541D/F and
71M6x01. This single-phase configuration uses one local shunt and one shunt isolated with a 71M6x01
device. Since the local shunt is connected to the LINE circuit, the meter is also referenced to the LINE
circuit.
Figure 4 shows the sensor connections for a polyphase meter application using a 71M6543F/H or
71M6545/H. This polyphase configuration uses three 71M6xx3 to isolate the shunt sensors for the three
phases, while a locally connected fourth shunt sensor can be optionally used to sense neutral current.
Since the local shunt is connected to the neutral circuit, the meter is also referenced to the neutral circuit.
71M6xxx Data Sheet
8
MPU
RTC
TIMERS
IAP
VA
IBP
XIN
XOUT
RX
TX
TX
RX
COM0...5
V3P3A V3P3SYS
VBAT
VBAT_RTC
SEG
GNDA GNDD
SEG/DIO
DIO
ICE
LINE
NEUTRAL
LOAD
8888.8888
PULSES,
DIO
IR
AMR
POWER FAULT
COMPARATOR
MODUL-
ATOR
SERIAL PORTS
OSCILLATOR/
PLL
MUX and ADC
LCD DRIVER
DIO, PULSES
COMPUTE
ENGINE
FLASH
MEMORY
RAM
32 kHz
REGULATOR
Shunt
POWER SUPPLY
71M6541D/F
TEMPERATURE
SENSOR
VREF
BATTERY
PWR MODE
CONTROL
WAKE-UP
NEUTRAL
I
2
C or µWire
EEPROM
IAN
IBN
RTC
BATTERY
V3P3D
BATTERY
MONITOR
SPI INTERFACE
HOST
LCD DISPLAY
Resistor Divider
Pulse
Trans-
former
71M6x01
Shunt
LINE
LINE
Note:
This system is referenced to LINE
11/5/2010
Figure 3: Current Sensors Connected to the 71M6541D/F Using On e 71M6x01
71M6xxx Data Sheet
9
MPU
RTC
TIMERS
IADC0
VADC8 (VA)
IADC2
VADC9 (VB)
XIN
XOUT
RX
TX
TX
RX
COM0...5
V3P3A V3P3SYS
VBAT
VBAT_RTC
IADC4
VADC10 (VC)
SEG
GNDA GNDD
SEG/DIO
DIO
ICE
C
B
A
NEUTRAL LOAD
8888.8888
PULSES,
DIO
IR
AMR
POWER FAULT
COMPARATOR
MODUL-
ATOR
SERIAL PORTS
OSCILLATOR/
PLL
MUX and ADC
LCD DRIVER
DIO, PULSES
COMPUTE
ENGINE
FLASH
MEMORY
RAM
32 kHz
REGULATOR
Shunt Current Sensors
POWER SUPPLY
71M6543F/
71M6543H
TEMPERATURE
SENSOR
VREF
IADC6
BATTERY
PWR MODE
CONTROL
WAKE-UP
NEUTRAL
I
2
C or µWire
EEPROM
9/17/2010
IADC1
IADC3
IADC5
IADC7
RTC
BATTERY
V3P3D
BATTERY
MONITOR
SPI INTERFACE
HOST
LCD DISPLAY
Resistor Dividers
Pulse Transformers
3x 71M6xx3
Note: This system is referenced to Neutral
71M6xx3
71M6xx3
71M6xx3
}IN*
}IA
}IB
}IC
*IN = Neutral Current
Figure 4: Current Sensors Connected to the 71M6543F/H or 71M6545/H with Three 71M6xx3
3.4 PCB Layout Considerations
To limit em iss ions and s us c epti bility to e lectr omagnet ic and magnet ic f ields , the signal wir ing betwee n th e
shunt resis tors and the 71 M6xxx should be as s hort as possibl e and should co nsist of tightl y twisted pair
cable. Similarly, the PCB traces between the 71M6xxx and the 71M654x should be routed as short as
possible and should be surrounded by grounded copper structures. The trace pairs should be routed as
close to each other as permitted by the PCB manufacturer.
The copper separation (gap) between the shunt side and the 71M654x side of the signal transformer
should be as wide as permitted by the footprint of the transformer, as shown in Figure 5.
71M6xxx Data Sheet
10
Figure 5: C o p p er Separation and Sig n al Traces for a Polyphase PCB
3.5 Compatibility with the 71M654x
The 71M6xxx isolated sensor ICs are designed to be operated in conjunction with the 71M654x energy-
metering ICs. Operation of the 71M6xxx isolated sensor ICs requires a 71M654x IC with CE code
capable of interfacing with the 71M6xxx. CE codes written for operation with CTs do not work with the
71M6xxx.
The 71M6xxx isolated sensor ICs are not arbitrarily interchangeable. Each type of the 71M6xxx must be
matched with its corresponding CE code in the 71M654x per Table 14. A 71M6xxx remote sensor IC
generates unpredictable results when paired with a CE code for a different part number. All 71M6xxx
isolated sensor ICs used in a polyphase system must be of the same part number.
Signal traces
Isolation gap
Transformers
71M6xxx Data Sheet
11
4 SPECIFICATIONS
4.1 Absolute Maximum Ratings
Table 3 shows the absolute maximum ranges for the device. Stresses beyond Absolute Maximum
Ratings may cause permanent damage to the device. These are stress ratings only and functional
operation at these or any other conditions beyond those indicated under recommended operating
conditions (4.3 Recommended Operating Conditions) is not implied. Exposure to absolute maximum
ratings conditions for extended periods may affect device reliability. All voltages are with respect to GND.
Table 3: Absolute Maximum Ratings
SUPPLIES AND GROUND PINS:
VCC
-0.5V to 4.6V
GND
-0.1V to +0.1V
ANALOG INPUT PINS:
INP, INN, SP, SN -10mA to +10mA,
-0.5V to (VCC + 0.5V)
TEMPERATURE:
Operating Junc tion Temperature (Peak , 100ms)
+140°C
Operating Junc tion Temperature (Continuous) +125°C
Storage Temperature Range -45°C to +165°C
Soldering Temperature (10s duration) +250°C
4.2 Recommended External Components
Table 4: Recommended External Components
NAME
FROM
TO
FUNCTION
VALUE
UNITS
C1 VCC GND Bypass capacitor for supply 1.0 µF
R1, R2 Sensor GND To establish proper bias for INP/INN pins 1 kΩ
4.3 Recommended Operating Conditions
Table 5: Recommended Operatin g Conditions
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC Supply Voltage
2.5 3.6 V
Operating Temperature Range
-40 +85 ⁰C
71M6xxx Data Sheet
12
4.4 Performance Specifications
Unless otherwise specified, all parameters listed in this section are valid over the Recommended
Operating Conditions provided in Table 5.
4.4.1 Supply Current
Table 6: Supply Current Performance Specifications
PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC Current, Normal Operation VCC = 3.3V 0.77 1.05 mA
4.4.2 Power and Data Pulses
Table 7: Timing Specifications for Power and Data Pulses
PARAMETER CONDITIONS MIN TYP MAX UNITS
Pulse Frequency
Normal operatio n
1.638
MHz
71M654x (PLL_FAST = 0)
0.5249
4.4.3 VCC V oltage Monitor
Table 8: VCC Voltag e Monitor Specific ations
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
BNOM: Nominal Value, TA = +22°C VCC = 3.2V 138 LSB
VCC Voltage (Note: This is a definition—
it is not a measured quantity.)
VCC = 3.195 + (BSENSE - 138) x 0.0246 + STEMP x
0.000104
V
BE: Measurement Error
VCC = 3.195 + (BSENSE - 138) x 0.0246
+ STEMP x 0.000104
VCC = 2.5V -5 +5 %
VCC = 2.8V to 3.6V -5 +5
4.4.4 Temperature Sensor
Table 9: Temperature Sensor Specifications
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
TNOM: Nominal Value, TA = +22°C
VCC = 3.2V
870
LSB
Temperature Equation for:
71M6601, 71M6603, 71M6103 and
71M6113
(Note: This is a definition—it is not a
measured quantity.)
TEMP = STEMP x 0.3 3 - STEMP2 x 3E-5 + 22 ºC
Temperature Equation for:
71M6201 and 71M 6203
(Note: This is a definition—it is not a
measured quantity.)
If STEMP < 0:
TEMP = STEMP x 0.3 3 - STEMP2 x 3E-5 + 22
If STEMP ≥ 0:
TEMP = STEMP x (63 / TRIMBGA) + 22
⁰C
Temperature Error (Note 1) Temperature =
-40°C, -10°C,
+55°C, + 85°C
VCC =
2.8V to
3.6V
-5 +5
ºC
VCC =
2.5V to
2.79V
-6.5 +6.5
TETIME: Duration of Temperature
Measurement
VCC = 3.0V 15 30 ms
Note 1: Guaranteed by design; not production tested.
71M6xxx Data Sheet
13
4.4.5 VREF Performance Specifications
Table 10 shows t he performance specifications for the ADC reference voltage (VREF).
Table 10: VREF Performance Specification s
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Output Voltage
71M6201, 71M6203,
71M6113: TA = +22°C
1.193 1.195 1.197 V
71M6601, 71M6603,
71M6103: TA = +22°C
1.180 1.195 1.210
VREF Output Impedance
I
LOAD
= 10µA, -10µA
on TMUXOUT
8 kΩ
VREF Power-Supply Sensi tivity:
ΔVREF/ΔVCC
VCC = 2.8V t o 3.6V
-1.5
+1.5
mV/V
VCC = 2.5V to 3.6V
-2
+2
VREF Chop Step (Trimmed)
VREF(CROSS = 1) -
VREF(CROSS = 0)
-22 0 +22 mV
VNOM Definition
VNOM(T) = VREF(22) + (T - 22)TC1 + (T - 22)2TC2
V
71M6201 AND 71M6203 (0.2% ACCURACY CLASS)
VNOM Temperature Coefficients:
TC1, TC2
TC1 = 0.0538 x TRIMT + 1.587(TRIMBGB - TRIMBGD) +
27.279
µV/°C
TC2 = -0.433 - TRIMT x 0.000854
µV/°C2
VREF(T) Deviation from VNOM(T) (Note 1)
62
10
)( )()(
6
TVNOM TVNOMTVREF −
-15 +15 ppm/°C
71M6113 (0.5% ACCURACY CLASS)
VNOM Temperature Coefficients:
TC1, TC2
TC1 = 251 - TRIMT x 4.60
µV/°C
TC2 = -0.433 - TRIMT x 0.000854
µV/°C2
VREF(T) Deviation from VNOM(T) (Note 1)
62
10
)( )()(
6
TVNOM TVNOMTVREF −
-50 +50 ppm/°C
71M6601, 71M 6603, AND 71M6103 (1% ACCURACY CLASS)
VNOM Temperature Coefficients:
TC1, TC2
TC1 = -34.8
µV/°C
TC2 = -0.599
µV/°C2
VREF(T) Deviation from VNOM(T) (Note 1)
45
10
)( )()(
6
TVNOM TVNOMTVREF −
-100 +100 ppm/°C
Note 1: Guaranteed by design; not production tested.
71M6xxx Data Sheet
14
4.4.6 ADC Conver t er
Table 11: ADC Converter Specifications
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Current INP and INN at
GND potential
INP
22
µA
INN
22
THD (First 10 Harmonics)
VIN = 65Hz, 64kpts
FFT, Blackman-Harris
window
-85 dB
71M6xxx Data Sheet
15
4.5 Typical Performance Data
Figure 6: Wh Error at Room Temperature (71M6203, 100A/0.1A, 60Hz/240V AC)
Figure 7: VARh Error at Room Temperature (71M6203, 100A/0.1A, 60Hz/240V AC)
-
0.5
-
0.4
-
0.3
-
0.2
-
0.1
0
0.1
0.2
0.3
0.4
0.5
0.1
1
10
100
90
°
150
°
VARh Polyphase Load Line with 150µΩ
Shunt
-
0.5
-
0.4
-
0.3
-
0.2
-
0.1
0
0.1
0.2
0.3
0.4
0.5
0.1
1
10
100
0
°
60
°
300
°
180
°
Wh Polyphase Load Line with 50µΩ Shunts
71M6xxx Data Sheet
16
DETAIL A
PARTING
LINE
5
5°
+3°
-5° 0.64
+0.25
-0.23
4.6 Packag e Ou tl in e Drawing
Controlling dimensions are in mm.
Figure 8: SOIC-8 Package Outline
BOTTOM VIEW
SIDE VIEW
SEE
DETAIL A
END VIEW
TOP VIEW
5.99
+0.21
-0.05
1.97
2.465
COO
10
4.93 -0.13
+0.05
4
0.41
+0.08
-0.06
9
1.27 BSC 0.33
±0.08
x 45°
1.63 +0.10 -0.08
0.15
+0.1 -
0.023
SEATING
PLANE
1.47
+0.08
-0.07
3.94
+0.05
-0.13
0.20
+0.05
-0.01
4
8
3
LENGTH OF TERMINAL FOR SOLDERING TO SUBSTRATE
5
FORMED LEADS ARE PLANAR WITH RESPECT TO EACH OTHER
WITHIN 0.735 mm AT SEATING PLANE.
8
10
COUNTRY OF ORIGIN LOCATION ON PACKAGE BOTTOM IS
OPTIONAL AND DEPENDS ON ASSEMBLY LOCATION.
PACKAGE IS COMPLIANT WITH JEDEC STANDARD MS-012.
REFERENCE DATUM
3
LENGTH AND WIDTH ARE REFERENCE DATUMS AND DO NOT
INCLUDE MOLD FLASH OR PROTRUSIONS, BUT INCLUDE MOLD
MISMATCH. MEASURED AT THE MOLD PARTING LINE.
PROTRUSIONS DO NOT EXCEED 0.1524 mm AT END AND 0.254
mm AT WINDOW.
4
9
THE APPEARANCE OF PIN #1 I.D. IS OPTIONAL.
DIMENSIONING AND TOLERANCES PER ANSI Y14.5 M - 1982
NOTES:
71M6xxx Data Sheet
17
4.7 IC Pinout
VCC TEST
SP
SN
GND NC
INP
INN
1
2
3
45
6
7
8
Figure 9: Pinout for 8-Pin SO Package
4.8 Pin Description
Table 12: Pin Description
PIN
NAME
FUNCTION
1
VCC
Supply Vol tag e Ou tput . A 1.0
µ
F capacito r to GND should be provide d.
2 SP
Positive Bidirectional Communication Port for the Connection of the Pulse
Transformer
3 SN
Negative Bidirectional Communication Port for the Connection of the Pulse
Transformer
4 GND
Ground (Local G round) . The voltage at the INP and INN pins re ferences to
thi s pin.
5
NC
No Connection. No connections must be made to this pin.
6 INP
Positive Analog Input from Sensor. This input must be biased towards
GND with a 1k
Ω
resistor.
7 INN Negative Analog Input from Sensor. This input must be biased towards
GND with a 1k
Ω
resistor.
8 TEST
Input Used in Factory for Test Purposes. This pin must be connected to
GND.
71M6xxx Data Sheet
18
5 ORDERING INFORMATION
Table 13: Product Variations
PART APPLICATION RATED
CURRENT
(A)
MAX INP UT
V OLTAGE AT
INP-INN PINS
(mV)
TEMP RANGE
(
°
C)
TYP
OPERATING
TEMP RANGE
(
°
C)
RECOMMENDED
METER
ACCURACY
CLASS
(%)
MAX SHUNT
RESISTANCE
(
µΩ
)
71M6601 1-phase 60 44
-40 to +85
-20 to +60 1 736
71M6603 3-phase
71M6103 3-phase 100 19.6 -20 to +60 1 196
71M6113 3-phase
0.5
71M6201 1-phase 200 12.6 -40 to +85 0.2 63
71M6203 3-phase
Table 14: Packaging Information, Corresponding CE Codes, and Ordering Numbers
PART
TEMP RANGE
PIN-PACKAGE
71M654x CE CODE
71M6601-IL/F
-40°C to +85°C
8 SO
EQU0-60
71M6601-ILR/F
-40°C to +85°C
8 SO
EQU0-60
71M6603-IL/F
-40°C to +85°C
8 SO
EQU5-60
71M6603-ILR/F
-40°C to +85°C
8 SO
EQU5-60
71M6103-IL/F
-40°C to +85°C
8 SO
EQU5-100
71M6103-ILR/F
-40°C to +85°C
8 SO
EQU5-100
71M6113-IL/F
-40°C to +85°C
8 SO
EQU5-100
71M6113-ILR/F
-40°C to +85°C
8 SO
EQU5-100
71M6201-IL/F
-40°C to +85°C
8 SO
EQU1-20 0, EQU 2-200
71M6201-ILR/F
-40°C to +85°C
8 SO
EQU1-20 0, EQU 2-200
71M6203-IL/F
-40°C to +85°C
8 SO
EQU5-200
71M6203-ILR/F
-40°C to +85°C
8 SO
EQU5-200
F = Lead(Pb)-free/RoHS-compliant pack age.
R = Tape and reel.
6 REL ATED INFORMATION
The following documents related to the 71M6xxx are available from Maxim Integrated:
71M6543F/H Data Sheet
71M6541D/F-71M6542F Data Sheet
71M6545/H Data She et
7 CONT ACT INFOR MATION
For technical support or more inform ation about Maxim Integrated products, contact technical supp ort at
www.maximintegrated.com/support.
71M6xxx Data Sheet
Maxim I ntegrate d cann ot assume respons ibility f or use of any ci rcuitry other t han circ uitry enti rely emb odied in a Maxi m Integrate d product. No circ uit
patent licenses are implied. Ma xi m Integr ated reserves the right to c hange the circuitry and s pecifications without notic e at any time. The p arametric
values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are
provided for guidance.
19
© 2015 Maxim Integrated Products, Inc. Ma xim In teg ra ted and the M axim Integ rat ed l og o are tra dem a rk s of Maxim Int e gr ate d Pr od ucts, Inc.
REVISION HISTORY
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0
12/10
Initial release
—
1 3/11
Figure 1, page 4 (transformer turns ratio 1:1.1)
Table 9, pag e 12
Table 14, page 18
4, 12, 18
2 6/11
Removed future status from the 71M6113 parts in
Table 14
18
3 12/12
Removed future status from the
71M6201/71M6203 parts in Table 14
18
4
1/15
Updated the Benefits and Features section
1