MLX91220 Integrated Current Sensor IC
Datasheet
Features and Benefits
Applications
▪
Factory trimmed AC and DC current sensor
▪
AC and DC Chargers
▪
Analog ratiometric or fixed output voltage
▪
Electric Drives
▪
Combining sensing element, signal
conditioning & isolation in SOIC package
▪
DCDC converters
▪
Solar
▪
No application programming required
▪
Power Supplies
▪
High speed sensing
▪
Demand/Load control
▪
DC to 300kHz bandwidth
▪
2µs response time
▪
Robust against external magnetic fields
▪
No magnetic hysteresis
▪
Double overcurrent detection (SOIC-16)
▪
Low ohmic losses of integrated conductor
▪
▪
1.09mΩ SOIC-8 / 0.89mΩ SOIC-16
SOIC-8 narrow body and SOIC-16 wide
body package, RoHS compliant
▪
Lead free component, suitable for lead
free soldering profile up to 260°C, MSL3
▪
Rated voltage isolation
▪
2.4kVRMS for SOIC-8
▪
4.8kVRMS for SOIC-16
Description
The MLX91220 is an Isolated Integrated Current
Sensor that senses the current flowing through the
low impedance leadframe of the SOIC package. By
virtue of fixing the current conductor position with
respect to the monolithic CMOS sensor, a fully
integrated Hall-effect current sensor is obtained,
that is factory calibrated.
Inside the package, the magnetic flux density
generated by the current flow is sensed
differentially by two sets of Hall plates. As a result
the influence of external disturbing fields is
minimized in the fast analog front-end. The
residual signal is amplified to provide a high-speed
linear analog output voltage.
The close proximity of the Hall plates to the current
conductor ensures a high signal-to-noise ratio and
an accurate signal over temperature. Even with this
miniaturization, high voltage isolation ratings are
still maintained between the primary and the
opposing secondary side.
SOIC-8
SOIC-16
IEC/UL 62368-1:2014
(2nd edition)
MLX91220 Integrated Current Sensor IC
Datasheet
Contents
Features and Benefits................................................................................................................................ 1
Applications............................................................................................................................................... 1
Description ................................................................................................................................................ 1
Contents.................................................................................................................................................... 2
1. Ordering Information ............................................................................................................................ 4
2. Functional Diagram ............................................................................................................................... 6
3. Glossary of Terms .................................................................................................................................. 8
4. Pinout .................................................................................................................................................... 9
5. Absolute Maximum Ratings ................................................................................................................. 10
6. MLX91220 General Electrical Specifications ........................................................................................ 11
7. MLX91220 General Current Specifications .......................................................................................... 12
8. MLX91220 Voltage Isolation Specifications ......................................................................................... 13
9. MLX91220 Timing Specifications ......................................................................................................... 14
10. MLX91220 Accuracy Specifications.................................................................................................... 15
10.1. Definitions ....................................................................................................................................... 15
10.2. MLX91220KDx-ABF-117 Specifications.......................................................................................... 17
10.3. MLX91220KDx-ABR-020 Specifications ......................................................................................... 18
10.4. MLX91220KDx-ABR-025 Specifications ......................................................................................... 19
10.5. MLX91220KDx-ABF-025 Specifications.......................................................................................... 20
10.6. MLX91220KDx-ABR-030 Specifications ......................................................................................... 21
10.7. MLX91220KDx-ABR-050 Specifications ......................................................................................... 22
10.8. MLX91220KDx-ABF-050 Specifications.......................................................................................... 23
10.9. MLX91220KDx-AUF-050 Specifications ......................................................................................... 24
10.10. MLX91220KDx-ABR-075 Specifications ....................................................................................... 25
10.11. MLX91220KDx-ABF-075 Specifications ....................................................................................... 26
11. MLX91220 Overcurrent Detection ..................................................................................................... 27
11.1. General ............................................................................................................................................ 27
11.2. Electrical Specifications .................................................................................................................. 28
11.3. Internal Overcurrent Detection Principle ...................................................................................... 28
11.4. External Overcurrent Detection Principle ..................................................................................... 29
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MLX91220 Integrated Current Sensor IC
Datasheet
12. Recommended Application Diagrams ................................................................................................ 30
12.1. Resistor and Capacitor Values........................................................................................................ 30
12.2. SOIC8 Application Diagram ............................................................................................................ 31
12.3. SOIC16 Application Diagram .......................................................................................................... 31
12.3.1. OCD functions not used ........................................................................................................... 32
13. Standard information regarding manufacturability with different soldering processes ..................... 33
14. ESD Precautions................................................................................................................................. 34
15. Package Information.......................................................................................................................... 35
15.1. SOIC-8 150mils - Package Dimensions........................................................................................... 35
15.2. SOIC-16 300mils - Package Dimensions......................................................................................... 36
15.3. Packaging marks ............................................................................................................................. 37
16. Contact .............................................................................................................................................. 37
17. Disclaimer .......................................................................................................................................... 38
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MLX91220 Integrated Current Sensor IC
Datasheet
1. Ordering Information
Product Code
Package
Current
Measurement
Range
Output type
Sensitivity
OCD level
MLX91220KDC-ABF-025-RE
SOIC8
25 A
Fixed, Bipolar
80 mV/A
MLX91220KDC-ABF-050-RE
SOIC8
50 A
Fixed, Bipolar
40 mV/A
MLX91220KDC-AUF-050-RE
SOIC8
50 A
Fixed, Unipolar
80 mV/A
MLX91220KDC-ABR-020-RE
SOIC8
20 A
Ratiometric, Bipolar
100 mV/A
MLX91220KDC-ABR-025-RE
SOIC8
25 A
Ratiometric, Bipolar
80 mV/A
MLX91220KDC-ABR-030-RE
SOIC8
30 A
Ratiometric, Bipolar
66 mV/A
MLX91220KDC-ABR-050-RE
SOIC8
50 A
Ratiometric, Bipolar
40 mV/A
MLX91220KDF-ABF-117-RE
SOIC16
17 A
Fixed, Bipolar
120 mV/A
14.8 A
MLX91220KDF-ABF-025-RE
SOIC16
25 A
Fixed, Bipolar
80 mV/A
27.8 A
MLX91220KDF-ABF-050-RE
SOIC16
50 A
Fixed, Bipolar
40 mV/A
55.6 A
MLX91220KDF-AUF-050-RE
SOIC16
50 A
Fixed, Unipolar
80 mV/A
55 A
MLX91220KDF-ABF-075-RE
SOIC16
75 A
Fixed, Bipolar
26.7 mV/A
83.4 A
MLX91220KDF-ABR-075-RE
SOIC16
75 A
Ratiometric, Bipolar
26.7 mV/A
83.4 A
MLX91220KDF-ABR-025-RE
SOIC16
25 A
Ratiometric, Bipolar
80 mV/A
27.8 A
MLX91220KDF-ABR-050-RE
SOIC16
50 A
Ratiometric, Bipolar
40 mV/A
55.6 A
Table 1: Ordering information
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MLX91220 Integrated Current Sensor IC
Datasheet
Legend:
Temperature Code:
K: from -40°C to 125°C ambient temperature
Package Code:
“DC” for SOIC-8 NB (Narrow Body – 150mils) package
“DF” for SOIC-16 WB (Wide Body – 300mils) package
Option Code:
Axx-xxx: die version
xBx-xxx: “B” for bipolar(1) and “U” for unipolar
xxF-xxx: “F” for fixed mode output and “R” for ratiometric output
xxx-0xx: “0” for default trimming
xxx-x50: “50” for Full Scale current measurement (corresponding to 2V excursion from
VOQ in bipolar case, and 4V excursion in unipolar case)
Packing Form:
“RE” for Reel
Ordering Example:
MLX91220KDC-ABF-050-RE
Table 2: Legend
(1) Bipolar output indicates that the sensor provides a symmetrical output around the 0A point which is set at half the output
voltage (50% V DD) in case of ratiometric mode, and V REF equals 50%V DD in case of fixed mode. Both designs imply sensing
of positive and negative currents.
Melexis is continuously expanding its product portfolio by adding new option codes to better meet the needs
of our customer’s applications. This table is being updated frequently, please go to the Melexis website to
download the latest version of this datasheet. For custom transfer characteristics, please contact your local
Melexis Sales representative or distributor.
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MLX91220 Integrated Current Sensor IC
Datasheet
2. Functional Diagram
Figure 1: Functional Diagram for MLX91220
The sensor can be used in 2 different modes, depending on the application. Both modes rely on the output voltage
of the sensor being proportional to the flow of current, but the difference resides in the signal reconstruction.
Ratiometric Mode
Figure 2: Schematic of ratiometric mode
No matter if the VDD line is at 5V or deviating +/-10%, the ADC code for a given measured current will always be the
same as the ADC is supplied by the same voltage as the sensor. The sensor has a sensitivity expressed in %VDD/A.
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MLX91220 Integrated Current Sensor IC
Datasheet
Differential or Fixed Mode (1)
Figure 3: Schemaic of fixed mode
In this particular case the ADC does not necessarily share the same supply voltage with the sensor. For this reason,
the sensor is calibrated with an absolute sensitivity regardless of the actual supply voltage. The output signal can
be reconstructed by taking the difference between the output and the reference voltage from the IC. The ADC gets
these two signals as inputs for establishing the sensed current accurately, and is not influenced by the supply
voltage differences between both sensor and microcontroller, if applicable.
Parameter
Ratiometric Mode
Differential or Fixed Mode
VOUT [%VDD]
VOUT - VREF [V]
Example: output is 2.5V when supply is 5V →
output is then 50%VDD. If the supply (VDD)
increases with 5% to 5.25V the sensor output
will (for the same measured input current)
scale proportionally with the supply voltage,
becoming 2.625V, but as a percentage (i.e.
ratiometrically seen) it remains at 50% of VDD.
Example: output is 2.501V and
VREF is 2.501V when supply is 5V.
When the supply voltage is
increasing to 5.1V due to supply
system variation, the sensor will
still maintain the same “fixed”
output values VOUT and VREF.
Offset
VOUT[0A] = 50 [%VDD] (factory trimmed)
VREF = 2.5 [V] (factory trimmed)
VOUT[0A]-VREF = 0 [V]
Offset ratiometric
Yes
No
Sensitivity
[%VDD/A]
[mV/A]
Sensitivity ratiometric
Yes
No
Measured Current
(VOUT-VOUT[0A]) / Sensitivity
(VOUT-VREF) / Sensitivity
Output Signal
Table 3: Parameters of differential and fixed modes
(1) More information can be found in Application Note AN91220_ReferencePin on www.melexis.com
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MLX91220 Integrated Current Sensor IC
Datasheet
3. Glossary of Terms
Gauss (G), Tesla (T)
Units for the magnetic flux density - 1 mT = 10 G
TC
Temperature Coefficient (in ppm/°C)
NC
Not Connected
IP
Integrated Primary
ASP
Analog Signal Processing
DSP
Digital Signal Processing
AC
Alternate Current
DC
Direct Current
EMC
Electro-Magnetic Compatibility
FS
Full Scale
OCD
OverCurrent Detection
Table 4: Glossary of Terms
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MLX91220 Integrated Current Sensor IC
Datasheet
4. Pinout
Figure 4 SOIC-16 and SOIC-8 pinouts
PIN
SOIC-8
SOIC-16
Pin
Function
IP+
Primary Current Path Input
IP-
Primary Current Path Output
9
VSS
Ground Voltage
10
VREF
Reference Voltage
11
NC
Not connected
12
VOUT
Output Voltage
13
OCDEXT
External Overcurrent detection
14
VDD
Supply Voltage
15
VOCEXT
External Overcurrent threshold voltage
16
OCDINT
Internal Overcurrent Detection
1
2
3
Pin
Function
IP+
Primary Current Path Input
IP-
Primary Current Path Output
5
VSS
Ground Voltage
6
VREF
Reference Voltage
7
VOUT
Output Voltage
8
VDD
Supply Voltage
4
Table 5: Pinout definition
For optimal EMC behavior, it is recommended to connect the unused pin (NC) to VSS (see Chapter 12).
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MLX91220 Integrated Current Sensor IC
Datasheet
5. Absolute Maximum Ratings
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximumrated conditions for extended periods may affect device reliability
Parameter
Value
Positive Supply Voltage (overvoltage)
+8V
Positive Supply Voltage (maintaining application
mode)
+ 6.5 V
Reverse Supply Voltage
- 0.3 V
Positive Pin Voltage(1)
VDD + 0.3 V
Output Sourcing Current
+ 25 mA
Reverse Pin Voltage(1)
- 0.3 V
Output Sinking Current
+50 mA
Operating Ambient Temperature Range, TA
- 40°C to + 125°C
Storage Temperature Range, TS
- 40°C to + 150°C
Maximum Junction Temperature, TJ (2)
+ 165°C
Table 6: Absolute maximum ratings
(1) Except for V DD and VSS
(2) For more information on how the junction temperature relates to the applied current and ambient temperature range,
please refer to section 7.
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MLX91220 Integrated Current Sensor IC
Datasheet
6. MLX91220 General Electrical Specifications
DC Operating Parameters at VDD = 5V (unless otherwise specified) and for T A as specified by the Temperature
suffix (K).
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
IDD
Without RLOAD, in application
mode
20
26
mA
VOUT output resistance
ROUT
VOUT = 50%VDD, ILOAD = 10 mA
1
5
Voltage Reference Output
Resistance
RREF
VREF = 50%VDD, ISINK = 5 mA or
ISOURCE = 0.2 mA
120
200
333
Output Capacitive Load
CLOAD
Output amplifier stability is
optimized for this typical value
0
4.7
6
nF
Common Mode Field
Sensitivity(1)
CMFS
Output Short Circuit Current
ISHORT
Output shorted to VDD or VSS Permanent
Output Leakage current
ILEAK
High impedance mode,
TA=125°C
TJ < 150°C
Supply Current
Output Voltage Linear Swing
VOUT_LSW
For SOIC16
0.4
mA/G
For SOIC8
0.4
mA/G
VDD > 4.6 V for Fixed Mode
versions
2
10
180
mA
20
µA
90
%VDD
Table 7: General electrical specifications
(1) Common Mode Field Sensitivity expresses the sensor's susceptibility to a homogenously applied field perpendicular to the
package surface. The differential measurement cancels out such common mode magnetic fields, but due to the matching
between both Hall plate clusters flanking the current conductor, this is not perfect. This parameter expresses the mA
output error as a result of such 1 mT applied field. It has to be noted, that ma gnetic fields generated by nearby
conductors are not homogenous but introduce gradients. More information in this regard can be found in Application
Note AN91220_ExternalFieldImmunity on www.melexis.com
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MLX91220 Integrated Current Sensor IC
Datasheet
7. MLX91220 General Current Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified) and for T A as specified by the Temperature
suffix (K).
Parameter
Symbol
Test Conditions
Electrical Resistance of the
Primary Current Path
RIP_SOIC8
RIP_SOIC16
TA=25°C
1.09
0.89
mΩ
mΩ
IPMAX
Option Code ABx-117
Option Code ABx-025
Option Code ABx-030
Option Code ABx-050
Option Code AUF-050
Option Code ABx-075
16.7
25
30
50
50
75
A
A
A
A
A
A
IPNOM
Option Code ABx-117
Option Code ABx-025
Option Code ABx-030
Option Code ABx-050
Option Code AUF-050
Option Code ABx-075
6.7
10
12
20
20
30
A
A
A
A
A
A
Measurement Range
Nominal Current
Linearity Error
Current Capability(1)
Min
Typ
Max
Units
NL
Current in range IPNOM, TA=25°C
±0.3
%FS
NL
Current in range IPMAX, TA=25°C
±0.6
%FS
IPC85_SOIC8
IPC25_SOIC8
Continuous, TA=-40 to 85°C
Continuous, TA=25°C
±25
±40
A
A
IPC85_SOIC16
IPC25_SOIC16
Continuous, TA=-40 to 85°C
Continuous, TA=25°C
±30
±45
A
A
Table 8: General current specifications
(1) Current capability based on the reference Melexis PCB made of 2x 105 µm copper layer without any forced air or other form of
cooling. Continuous or RMS current ranges in application are typically higher than this. More information can be found in
Application Notes AN91220_FuseCurrent Capability and AN91220_ThermalManagement on www.melexis.com.
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MLX91220 Integrated Current Sensor IC
Datasheet
8. MLX91220 Voltage Isolation Specifications
Parameter
Dielectric Strength Test Voltage (1) (2)
Symbol
Test Conditions
VISO_SOIC8
IEC 62368-1:2014 (second
edition)
VISO_SOIC16
DCL_SOIC8
Clearance (primary to secondary)
DCR_SOIC8
DCR_SOIC16
Comparative tracking index
Working Voltage for Basic Isolation
Shortest path along body
2400
VRMS
4800
VRMS
4
mm
8.1
mm
3.6
mm
7.1
mm
600
CTI
VWV_SOIC8
Units
Shortest distance through air
DCL_SOIC16
Creepage (primary to secondary)
Rating
500
VRMS
IEC 62368-1:2014 (2nd edition)
707
VDC
Based on Pollution degree 2,
Material Group II
1000
VRMS
1414
VDC
(3)
VWV_SOIC16
Table 9: Voltage isolation specifications
(1) Agency type tested, measured between IP (pin 1-4 on SOIC8, pin 1-8 on SOIC16) and Secondary side (pin 5-8 on SOIC8, pin
9-16 on SOIC16).
(2) Melexis performs routine production-line tests, for all SOIC8 & SOIC16 devices produced.
(3) Tension de service pour une isolation principale spécifiée pour un Degré de Pollution 2 et un groupe de matériaux II selon
la norme IEC/UL-62368-1:2014 (2ème édition)
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MLX91220 Integrated Current Sensor IC
Datasheet
9. MLX91220 Timing Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified) and for T A as specified by the Temperature
suffix (K).
Parameter
Symbol
Test Conditions
Step Response Time
TRESP
Delay between the input signal
reaching 90% and the output
reaching 90% (see Figure 5)
Bandwidth
BW
-3dB, TA =25°C
Power on Delay(1)
TPOD
VREF capacitor = 47nF
Min
Typ
Max
Units
2
μs
300
kHz
0.6
ms
Table 10: Timing specifications
in, Vout
100%
Response
time
90%
time
1 µs
Figure 5: Response Time definition
(1) During the Power-on delay, the output will remain within the 10% fault band at all time.
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MLX91220 Integrated Current Sensor IC
Datasheet
10. MLX91220 Accuracy Specifications
10.1. Definitions
Thermal Reference Drift
The thermal reference drift is the variation of the reference voltage (V REF) over temperature. It is expressed in
ppm/°C.
+ ΔT𝑉𝑅𝐸𝐹 = (
𝑉𝑟𝑒𝑓[125℃]
1
− 1) .
. 106
𝑉𝑟𝑒𝑓[35℃]
(125 − 35)
− ΔT𝑉𝑅𝐸𝐹 = (
𝑉𝑟𝑒𝑓[−40℃]
1
− 1) .
. 106
𝑉𝑟𝑒𝑓[35℃]
(−40 − 35)
Voltage Output Quiescent
VOQ corresponds to the output when no current is flowing through the MLX91220 at T A=25°C.
Thermal Offset Drift
ΔTVOQ corresponds to variation of V OQ in temperature.
Sensitivity
The sensitivity is the ratio between the output of the MLX91220 and the input current.
For ratiometric devices, as the output will scale with the supply, sensitivity is expressed as [%V DD]/A.
For fixed devices, the output does not vary with the V DD, sensitivity is thus expressed as mV/A.
Linearity Error
The linearity error is the deviation of the output from the expected linear behaviour. To obtain the linearity
error, the current is swept from -𝐼𝑃𝑀 to 𝐼𝑃𝑀 . To decorrelate the thermal drift from the linearity error, the
junction temperature should be fixed below 50°C.
𝑁𝐿 =
𝑉𝑜𝑢𝑡 [𝐼] − 𝐵𝐸𝑆𝑇𝐹𝐼𝑇(𝑉𝑜𝑢𝑡 [𝐼])
. 100 [%𝐹𝑆]
𝑉𝑜𝑢𝑡 [𝐼𝑃𝑀 ] − 𝑉𝑜𝑢𝑡 [−𝐼𝑃𝑀 ]
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MLX91220 Integrated Current Sensor IC
Datasheet
Ratiometry Offset and Sensitivity Error
Ratiometric Mode
In Ratiometric mode, V OUT and VREF are scaled with the supply voltage. 𝑉𝐷𝐷𝑛𝑜𝑚 = 5𝑉
Ratiometric VOQ Error:
ΔR 𝑉𝑂𝑄 = 𝑉𝑂𝑄 [𝑉𝐷𝐷𝑛𝑜𝑚 ] − 𝑉𝑂𝑄 [𝑉𝐷𝐷𝑛𝑜𝑚 ± 10%].
𝑉𝐷𝐷𝑛𝑜𝑚
[𝑚𝑉]
𝑉𝐷𝐷𝑛𝑜𝑚 ± 10%
Ratiometric Sensitivity Error:
ΔR𝑆 = 100. (1 −
𝑆[𝑉𝐷𝐷𝑛𝑜𝑚 ±10%]
𝑉
. 𝑉 𝐷𝐷𝑛𝑜𝑚
)
𝑆[𝑉𝐷𝐷𝑛𝑜𝑚 ]
𝐷𝐷𝑛𝑜𝑚 ±10%
[%]
Fixed Mode
In Fixed mode, V OUT and VREF are not scaled with the supply voltage. Ideally, they do not vary. 𝑉𝐷𝐷𝑛𝑜𝑚 = 5𝑉
Non-Ratiometric VOQ Error:
ΔR 𝑉𝑂𝑄 = 𝑉𝑂𝑄 [𝑉𝐷𝐷𝑛𝑜𝑚 ± 10%] − 𝑉𝑂𝑄 [𝑉𝐷𝐷𝑛𝑜𝑚 ] [𝑚𝑉]
Non-Ratiometric Sensitivity Error:
ΔR𝑆 = (
𝑆[𝑉𝐷𝐷𝑛𝑜𝑚 ± 10%]
− 1) . 100 [%]
𝑆[𝑉𝐷𝐷𝑛𝑜𝑚 ]
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MLX91220 Integrated Current Sensor IC
Datasheet
10.2. MLX91220KDx-ABF-117 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
For VDD > 4.6 V
-16.7
Nominal Supply Voltage
VDD
For I such as VOUT < VDD-0.1 V
4.5
Voltage Reference
VREF
TA=25°C. No resistive load on
Vref pin
2.48
Thermal Reference Drift
Voltage Output Quiescent
ΔTVREF
VOQ
No current flowing through
IP, VOUT-VREF, TA=25°C
No resistive load on VOUT and
VREF
ΔRVOQ
TA=25°C and for ±10% VDD
Thermal Offset Drift
ΔTVOQ
Referred to TA=25°C, IP = 0A
Lifetime Offset Drift
ΔLVOQ
S
Max
Units
16.7
A
5
5.5
V
2.5
2.52
V
±150
ppm/°C
-7.5
-63
7.5
63
mV
mA
-5
5
mV
±10
±84
mV
mA
Variation versus 25°C
Ratiometry Offset Error
Sensitivity
Typ
±5
±42
±2
At TA=25°C
For Tj < 50 °C
-1
118.8
mV
1
121.2
%
mV/A
0.6
%
±1
±1.5
%S
±1
±2
%S
120
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
-0.6
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Sensitivity Drift over lifetime
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
179
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
116
mARMS
OCDINT Threshold Current(1)
IOCD
14.8
A
OCDINT Accuracy(1)
εIOCD
9.7
17.6
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
6
%
Table 11: MLX91220KDx-ABF-117 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 17 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.3. MLX91220KDx-ABR-020 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified),for T A as specified by the Temperature suffix
(K) and for Tj < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
-20
Nominal Supply Voltage
VDD
4.5
Voltage Output Quiescent
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
5
Max
Units
20
A
5.5
V
No current flowing through
IP, VOUT –VDD/2, TA=25°C
No resistive load on VOUT and
VREF
-7.5
-75
7.5
75
mV
mA
TA=25°C and for ±10% VDD
-10
10
mV
±7.5
±75
mV
mA
Referred to TA=25°C, IP = 0A
±5
±50
±2
At TA=25°C
For Tj < 50 °C
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Sensitivity Drift over lifetime
ΔLS
Output Noise Spectral
Density
NSD
Output RMS Noise
NRMS
OCDINT Threshold Current(1)
IOCD
OCDINT Accuracy(1)
εIOCD
OCD EXT threshold error(1)
εEOCD
-1
99
100
mV
1
101
±0.5
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
%
±1
±1.5
%S
±1
±2
%S
186
IP = 0 A, TA=25°C
BW = 300kHz
µA/√Hz
mARMS
120
TA=25°C
TA=-40°C to 85°C
-6
%
mV/A
22.2
A
8
12
%
%
6
%
Table 12: MLX91220KDx-ABR-020 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 18 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.4. MLX91220KDx-ABR-025 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
-25
Nominal Supply Voltage
VDD
4.5
Voltage Output Quiescent
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
5
Max
Units
25
A
5.5
V
No current flowing through
IP, VOUT –VDD/2, TA=25°C
No resistive load on VOUT and
VREF
-7.5
-94
7.5
94
mV
mA
TA=25°C and for ±10% VDD
-10
10
mV
±7.5
±94
mV
mA
Referred to TA=25°C, IP = 0A
±5
±63
±2
At TA=25°C
For Tj < 50 °C
-1
79.2
80
mV
1
80.8
±0.5
%
mV/A
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
190
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
129
mARMS
OCDINT Threshold Current(1)
IOCD
27.8
A
OCDINT Accuracy(1)
εIOCD
7.5
11.5
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
%
±1
±1.5
%S
±1
±2
%S
6
%
Table 13: MLX91220KDx-ABR-025 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 19 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.5. MLX91220KDx-ABF-025 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
For VDD > 4.6 V
-25
Nominal Supply Voltage
VDD
For I such as VOUT < VDD-0.1 V
4.5
Voltage Reference
VREF
TA=25°C. No resistive load on
Vref pin
2.48
Thermal Reference Drift
Voltage Output Quiescent
ΔTVREF
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
Max
Units
25
A
5
5.5
V
2.5
2.52
V
±150
ppm/°C
-7.5
-94
7.5
94
mV
mA
-5
5
mV
±7.5
±94
mV
mA
Variation versus 25°C
No current flowing through
IP, VOUT-VREF, TA=25°C
No resistive load on VOUT and
VREF
TA=25°C and for ±10% VDD
Referred to TA=25°C, IP = 0A
±5
±63
±2
At TA=25°C
For Tj < 50 °C
-1
79.2
-0.6
mV
1
80.8
%
mV/A
0.6
%
±1
±1.5
%S
±1
±2
%S
80
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
190
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
129
mARMS
OCDINT Threshold Current(1)
IOCD
27.8
A
OCDINT Accuracy(1)
εIOCD
7.5
11.5
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
6
%
Table 14: MLX91220KDx-ABF-025 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 20 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.6. MLX91220KDx-ABR-030 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
-30
Nominal Supply Voltage
VDD
4.5
Voltage Output Quiescent
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
5
Max
Units
30
A
5.5
V
No current flowing through
IP, VOUT –VDD/2, TA=25°C
No resistive load on VOUT and
VREF
-7.5
-112
7.5
112
mV
mA
TA=25°C and for ±10% VDD
-10
10
mV
±7.5
±112
mV
mA
Referred to TA=25°C, IP = 0A
±5
±75
±2
At TA=25°C
For Tj < 50 °C
-1
66.0
66.7
mV
1
67.4
±0.5
%
mV/A
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
197
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
131
mARMS
OCDINT Threshold Current(1)
IOCD
33.7
A
OCDINT Accuracy(1)
εIOCD
7
11
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
%
±1
±1.5
%S
±1
±2
%S
6
%
Table 15: MLX91220KDx-ABR-030 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 21 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.7. MLX91220KDx-ABR-050 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
-50
Nominal Supply Voltage
VDD
4.5
Voltage Output Quiescent
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
5
Max
Units
50
A
5.5
V
No current flowing through
IP, VOUT –VDD/2, TA=25°C
No resistive load on VOUT and
VREF
-7.5
-188
7.5
188
mV
mA
TA=25°C and for ±10% VDD
-10
10
mV
±7.5
±188
mV
mA
Referred to TA=25°C, IP = 0A
±5
±125
±2
At TA=25°C
For Tj < 50 °C
-1
39.6
40
mV
1
40.4
±0.5
%
mV/A
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
186
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
126
mARMS
OCDINT Threshold Current(1)
IOCD
55.6
A
OCDINT Accuracy(1)
εIOCD
4.2
6.2
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
%
±1
±1.5
%S
±1
±2
%S
6
%
Table 16: MLX91220KDx-ABR-050 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 22 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.8. MLX91220KDx-ABF-050 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
For VDD > 4.6 V
-50
Nominal Supply Voltage
VDD
For I such as VOUT < VDD-0.1 V
4.5
Voltage Reference
VREF
TA=25°C. No resistive load on
Vref pin
2.48
Thermal Reference Drift
Voltage Output Quiescent
ΔTVREF
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
Max
Units
50
A
5
5.5
V
2.5
2.52
V
±150
ppm/°C
-7.5
-188
7.5
188
mV
mA
-5
5
mV
±7.5
±188
mV
mA
Variation versus 25°C
No current flowing through
IP, VOUT-VREF,TA=25°C
No resistive load on VOUT and
VREF
TA=25°C and for ±10% VDD
Referred to TA=25°C, IP = 0A
±5
±125
±2
At TA=25°C
For Tj < 50 °C
-1
39.6
-0.6
mV
1
40.4
%
mV/A
0.6
%
±1
±1.5
%S
±1
±2
%S
40
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
186
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
126
mARMS
OCDINT Threshold Current(1)
IOCD
55.6
A
OCDINT Accuracy(1)
εIOCD
4.2
6.2
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
6
%
Table 17: MLX91220KDx-ABF-050 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 23 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.9. MLX91220KDx-AUF-050 Specifications
DC Operating Parameters at VDD = 5V (unless otherwise specified), for T A as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
For VDD > 4.6 V
0
Nominal Supply Voltage
VDD
For I such as VOUT < VDD-0.1 V
4.5
Voltage Reference
VREF
TA=25°C. No resistive load on
Vref pin
0.495
Thermal Reference Drift
Voltage Output Quiescent
ΔTVREF
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
Max
Units
50
A
5
5.5
V
0.5
0.505
V
±250
ppm/°C
-7.5
-188
7.5
188
mV
mA
-5
5
mV
±7.5
±188
mV
mA
Variation versus 25°C
No current flowing through
IP, VOUT-VREF,TA=25°C
No resistive load on VOUT and
VREF
TA=25°C and for ±10% VDD
Referred to TA=25°C, IP = 0A
±5
±125
±2
At TA=25°C
For Tj < 50 °C
-1
79.2
-0.6
mV
1
80.8
%
mV/A
0.6
%
±1
±1.5
%S
±1
±2
%S
80
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
190
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
129
mARMS
OCDINT Threshold Current(1)
IOCD
55
A
10
10
%
%
OCDINT Accuracy(1)
εIOCD
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
6
%
Table 18: MLX91220KDx-AUF-050 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 24 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.10. MLX91220KDx-ABR-075 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified),for T A as specified by the Temperature suffix
(K) and for Tj < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
-75
Nominal Supply Voltage
VDD
4.5
Voltage Output Quiescent
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
5
Max
Units
75
A
5.5
V
No current flowing through
IP, VOUT –VDD/2, TA=25°C
No resistive load on VOUT and
VREF
-7.5
-281
7.5
281
mV
mA
TA=25°C and for ±10% VDD
-10
10
mV
±7.5
±281
mV
mA
Referred to TA=25°C, IP = 0A
±5
±187
±2
At TA=25°C
For Tj < 50 °C
-1
26.4
26.7
mV
1
27
±0.5
%
mV/A
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Sensitivity Drift over lifetime
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
207
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
143
mARMS
OCDINT Threshold Current(1)
IOCD
83.4
A
OCDINT Accuracy(1)
εIOCD
4
6
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
%
±1
±1.5
%S
±1
±2
%S
6
%
Table 19: MLX91220KDx-ABR-075 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 25 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
10.11. MLX91220KDx-ABF-075 Specifications
DC Operating Parameters at V DD = 5V (unless otherwise specified), for TA as specified by the Temperature suffix
(K) and for TJ < 150 °C.
Parameter
Symbol
Test Conditions
Min
Primary current
IPM
For VDD > 4.6 V
-75
Nominal Supply Voltage
VDD
For I such as VOUT < VDD-0.1 V
4.5
Voltage Reference
VREF
TA=25°C. No resistive load on
Vref pin
2.48
Thermal Reference Drift
Voltage Output Quiescent
ΔTVREF
VOQ
Ratiometry Offset Error
ΔRVOQ
Thermal Offset Drift
ΔTVOQ
Lifetime Offset Drift
ΔLVOQ
Sensitivity
S
Typ
Max
Units
75
A
5
5.5
V
2.5
2.52
V
±150
ppm/°C
-7.5
-281
7.5
281
mV
mA
-5
5
mV
±7.5
±281
mV
mA
Variation versus 25°C
No current flowing through
IP, VOUT-VREF,TA=25°C
No resistive load on VOUT and
VREF
TA=25°C and for ±10% VDD
Referred to TA=25°C, IP = 0A
±5
±187
±2
At TA=25°C
For Tj < 50 °C
-1
26.4
-0.6
mV
1
27
%
mV/A
0.6
%
±1
±1.5
%S
±1
±2
%S
26.7
Ratiometry Sensitivity Error
ΔRS
TA=25°C and for ±10% VDD
Thermal Sensitivity Drift
ΔTS
Current range IPMAX
Lifetime Sensitivity Drift
ΔLS
Output Noise Spectral
Density
NSD
IP = 0 A, TA=25°C
within BW = 1 … 100kHz
207
µA/√Hz
Output RMS Noise
NRMS
IP = 0 A, TA=25°C
BW = 300kHz
143
mARMS
OCDINT Threshold Current(1)
IOCD
83.4
A
OCDINT Accuracy(1)
εIOCD
4
6
%
%
OCD EXT threshold error(1)
εEOCD
TA=25°C
TA=-40°C to 85°C
-6
6
%
Table 20: MLX91220KDx-ABF-075 specifications
(1) For SOIC16 version
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 26 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
11. MLX91220 Overcurrent Detection
11.1. General
The MLX91220 provides two OCD features that allow detecting overcurrent applied on the integrated
sensor primary. In case of OCD detection, the OCD INT or OCD EXT is pulled to ground. During normal operation
the OCD voltage remains at VDD. This OCD feature is available for SOIC16 version only.
The two OCD functions are able to react to an overcurrent event within few us of response time. To avoid
false alarm, the overcurrent has to be maintained at least 1µs for the detection to occur. After detection
by the sensor the output flag is maintained for 10µs of dwell time. This allows the overcurrent to be easily
detected at microcontroller level. More information can be found in Application Note
AN91220_OverCurrentDetection on www.melexis.com
The following table offers a comparison between OCD INT and OCD EXT:
OCDINT
Min
OCDEXT
Max
Min
Max
Typical Application
Short-circuit detection
Out-of-range detection
Overcurrent effect
OCDINT pin to VSS
OCD EXT pin to VSS
Bidirectional
Unidirectional / bidirectional
Lower
Higher
EEPROM
Voltage divider on VOC EXT
Detection mode
Accuracy
Threshold trimming
Response time
1.4µs
Required Input holding time
OCD output dwell time
2.1µs
0.5µs
7 µs
10µs typical
10µs minimum
14 µs
10µs typical
Table 21: Comparison between OCD INT and OCD EXT performances
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 27 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
11.2. Electrical Specifications
DC Operating Parameters at VDD = 5V (unless otherwise specified) and for T A as specified by the Temperature
suffix (K).
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
OCD_INT Internal ON
Resistance
𝑅𝑂𝑁_𝑂𝐶𝐷_𝐼𝑁𝑇 𝐼𝑆𝐼𝑁𝐾 = 1 mA
60
90
150
Ω
OCD_EXT Internal ON
Resistance
𝑅𝑂𝑁_𝑂𝐶𝐷_𝐸𝑋𝑇 𝐼𝑆𝐼𝑁𝐾 = 1 mA
160
190
280
Ω
2
V
VOC_EXT Voltage Range
VOC_EXT
0.3
Table 22: OCDINT and OCDEXT electrical specifications
11.3. Internal Overcurrent Detection Principle
The internal OCD takes fixed threshold voltage values predefined in the EEPROM and do not require any
extra components. The OCDINT implementation allows detecting overcurrent outside of the output
measurement range of the sensor and is therefore suitable for large current peaks as occurring during
short-circuit. If the theoretical sensor output overcomes the OCDINT voltage threshold, the overcurrent
event is flagged on OCDINT pin. The default OCD threshold voltages are defined as follow, but other values
can be set on request. The overcurrent threshold in ampere is deduced from the sensitivity of the sensor
[mV/A] and the OCDINT threshold voltage.
OCDINT
Threshold
[% FS]
Sensor configuration
Min.
Max.
VDD = 5V / VREF = 2.5V
24.4
220
VDD = 5V / VREF = 0.5V
12.2
110
Table 23: OCDINT factory programmable range
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
Page 28 of 38
MLX91220 Integrated Current Sensor IC
Datasheet
Sensor reference
Sensitivity
[mV/A]
OCDINT Threshold Current
[% FS]
OCDINT Threshold
MLX91220KDF-ABF-117
120
87.1
14.8
MLX91220KDF-ABx-020
100
111.2
22.2
MLX91220KDx-ABx-025
80
111.2
27.8
MLX91220KDx-ABx-050
40
111.2
55.6
MLX91220KDx-AUF-050
80
110
55
MLX91220KDC-ABR-030
66
112.3
33.7
MLX91220KDF-ABF-075
26.7
111.2
83.4
Current [A]
Table 24: OCDINT threshold currents for SOIC-16 versions
11.4. External Overcurrent Detection Principle
The external OCD uses the voltage applied on VOCEXT pin as threshold voltage. This translates into an
overcurrent threshold in ampere depending on the sensitivity of the sensor. A voltage divider on VOCEXT
allows defining the threshold voltage in a custom way. Depending on the voltage divider configuration, the
OCD EXT can be used either in bidirectional or unidirectional mode. The External OCD threshold is defined
within the measurement range of the sensor output. This feature is then suitable for out-of-range detection
where the OCD threshold remains close to the nominal current. It offers a better accuracy than OCD INT but
the response is slower. The below table presents the unidirectional and bidirectional external OCD
configurations. Please refer to section 13.1 and 13.3 for more details about the application diagram and
the recommended resistances.
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Bidirectional configuration
𝑽𝑶𝑪𝑬𝑿𝑻 = 𝑽𝑹𝑬𝑭 ∗
𝑹𝒆𝒙𝒕𝒃𝒊
𝑹𝒆𝒙𝒕 + 𝑹𝒆𝒙𝒕𝒃𝒊
𝑽𝑳𝒐𝒄𝒅 = 𝑽𝑶𝑪𝑬𝑿𝑻
Unidirectional configuration
𝑽𝑶𝑪𝑬𝑿𝑻 = 𝑽𝑹𝑬𝑭 + (𝑽𝑫𝑫 − 𝑽𝑹𝑬𝑭 ) ∗
𝑹𝒆𝒙𝒕
𝑹𝒆𝒙𝒕 + 𝑹𝒆𝒙𝒕_𝒖𝒏𝒊
𝑽𝑯𝒐𝒄𝒅 = 𝑽𝑶𝑪𝑬𝑿𝑻
𝑽𝑯𝒐𝒄𝒅 = 𝟐. 𝑽𝑹𝑬𝑭 − 𝑽𝑳𝒐𝒄𝒅
Table 25: External OCD, bidirectionnal and unidirectional configurations
12. Recommended Application Diagrams
12.1. Resistor and Capacitor Values
Part
Description
Value
Unit
C1
Supply capacitor, EMI, ESD
47
nF
C2
Decoupling, EMI, ESD
47
nF
C3
Decoupling, EMI, ESD
4.7
nF
REXT + REXT_BI / REXT_UNI
External OCD Resistor
~200(1)
kΩ
REXT_BI or REXT_UNI
External OCD Resistor
custom
-
Table 26: Resistor and Capacitor Values for Recommended Application Diagrams
(1) High impedance needed due to the current source/sink limitation of the V REF pin.
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MLX91220 Integrated Current Sensor IC
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12.2. SOIC8 Application Diagram
Figure 6: Recommended wiring for the MLX91220 in SOIC-8 package
12.3. SOIC16 Application Diagram
Figure 7: Recommended wiring for the MLX91220 with Bidirectionnal External OCD
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MLX91220 Integrated Current Sensor IC
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Figure 8: Recommended wiring for the MLX91220 with Unidirectionnal External OCD
12.3.1. OCD functions not used
In case of OCD functions are not needed (internal or external), OCD pins can be connected to GND. Moreover, when
OCD_ext is not needed, VOC_ext pin should be connected to GND. Figure 7 shows the wiring when both OCD functions are
not needed.
Figure 9 : example of wiring in case of both OCD functions not needed
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13. Standard information regarding manufacturability
with different soldering processes
Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity
level according to following test methods:
Reflow Soldering SMD’s (Surface Mount Devices)
▪
IPC/JEDEC J-STD-020
Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices
(classification reflow profiles according to table 5-2)
▪
EIA/JEDEC JESD22-A113
Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing (reflow profiles
according to table 2)
Wave Soldering SMD’s (Surface Mount Devices) and THD’s
(Through Hole Devices)
▪
EN60749-20
Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat
▪
EIA/JEDEC JESD22-B106 and EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Iron Soldering THD’s (Through Hole Devices)
▪
EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Solderability SMD’s (Surface Mount Devices) and THD’s (Through
Hole Devices)
▪
EIA/JEDEC JESD22-B102 and EN60749-21
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak
temperature, temperature gradient, temperature profile etc) additional classification and qualification tests
have to be agreed upon with Melexis.
The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of
adhesive strength between device and board.
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MLX91220 Integrated Current Sensor IC
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Melexis recommends reviewing on our web site the General Guidelines soldering recommendation
(https://www.melexis.com/en/quality-environment/soldering).
Melexis is contributing to global environmental conservation by promoting lead free solutions. For more
information on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of
the use of certain Hazardous Substances) please visit the quality page on our website
(https://www.melexis.com/en/quality-environment).
14. ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling
semiconductor products.
Parameter
Symbol
Test Method
Value
Unit
Human Body ESD
Protection
ESDHBM
AEC-Q100-002 Rev D
2
kV
Charged Device Model
ESD Protection
ESDCDM
AEC-Q100-011 Rev B
500
V
Table 27: Electrostatic Discharge Ratings
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MLX91220 Integrated Current Sensor IC
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15. Package Information
15.1. SOIC-8 150mils - Package Dimensions
Figure 10 : SOIC8 Package Dimensions
[mm]
A
A1
A2
D
E
H
L
b
c
e
h
min
1.52
0.10
1.37
4.80
3.81
5.80
0.41
0.35
0.19
0.25
0°
max
1.73
0.25
1.57
4.98
3.99
6.20
1.27
0.49
0.25
1.27
BSC
0.50
8°
[inch]
A
A1
A2
D
E
H
L
b
c
e
h
min
.060
.004
.054
.189
.150
.228
.016
.014
.008
.010
0°
max
.068
.010
.062
.196
.157
.244
.050
.019
.010
.050
BSC
.020
8°
Table 28: SOIC8 package dimensions in millimeters and inches
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MLX91220 Integrated Current Sensor IC
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15.2. SOIC-16 300mils - Package Dimensions
Figure 11 : SOIC16 Package Dimensions
[mm]
A
A1
A2
D
E
H
L
b
c
e
h
min
2.44
0.10
2.24
10.11
7.40
10.11
0.51
0.35
0.23
0.25
0°
max
2.64
0.30
2.44
10.46
7.60
10.51
1.02
0.48
0.32
1.27
BSC
0.71
8°
[inch]
A
A1
A2
D
E
H
L
b
c
e
h
min
.096
.004
.088
.398
.291
.398
.020
.014
.009
.010
0°
max
.104
.012
.096
.412
.299
.414
.040
.019
.013
.050
BSC
.028
8°
Table 29: SOIC16 package dimensions in millimeters and inches
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MLX91220 Integrated Current Sensor IC
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15.3. Packaging marks
SOIC-8
SOIC-16
Table 30: Package marking information
16. Contact
For additional information, please contact our Direct Sales team and get help for your specific needs:
Europe, Africa
Email : sales_europe@melexis.com
Americas
Email : sales_usa@melexis.com
Asia
Email : sales_asia@melexis.com
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MLX91220 Integrated Current Sensor IC
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17. Disclaimer
The content of this document is believed to be correct and accurate. However, the content of this document is furnished "as is" for
informational use only and no representation, nor warranty is provided by Melexis about its accuracy, nor about the results of its
implementation. Melexis assumes no responsibility or liability for any errors or inaccuracies that may appear in this document. Customer will
follow the practices contained in this document under its sole responsibility. This documentation is in fact provided without warranty, term,
or condition of any kind, either implied or expressed, including but not limited to warranties of merchantability, satisfactory quality, noninfringement, and fitness for purpose. Melexis, its employees and agents and its affiliates' and their employees and agents will not be
responsible for any loss, however arising, from the use of, or reliance on this document. Notwithstanding the foregoing, contractual
obligations expressly undertaken in writing by Melexis prevail over this disclaimer.
This document is subject to change without notice, and should not be construed as a commitment by Melexis. Therefore, before placing
orders or prior to designing the product into a system, users or any third party should obtain the latest version of the relevant information.
Users or any third party must determine the suitability of the product described in this document for its application, including the level of
reliability required and determine whether it is fit for a particular purpose.
This document as well as the product here described may be subject to export control regulations. Be aware that export might require a prior
authorization from competent authorities. The product is not designed, authorized or warranted to be suitable in applications requiring
extended temperature range and/or unusual environmental requirements. High reliability applications, such as medical life-support or lifesustaining equipment or avionics application are specifically excluded by Melexis. The product may not be used for the following applications
subject to export control regulations: the development, production, processing, operation, maintenance, storage, recognition or proliferation
of:
1. chemical, biological or nuclear weapons, or for the development, production, maintenance or storage of missiles for such weapons;
2. civil firearms, including spare parts or ammunition for such arms;
3. defense related products, or other material for military use or for law enforcement;
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If this document is marked “restricted” or with similar words, or if in any case the content of this document is to be reasonably understood
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solely to its employees, agents, professional advisors and contractors for the purpose for which this document was received, on a strictly need
to know basis and providing that such persons to whom the document is disclosed are bound by confidentiality terms substantially similar to
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or its customers. The confidentiality obligations set forth in this disclaimer will have indefinite duration and in any case they will be effective
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This disclaimer will be governed by and construed in accordance with Belgian law and any disputes relating to this disclaimer will be subject
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The invalidity or ineffectiveness of any of the provisions of this disclaimer does not affect the validity or effectiveness of the other provisions.
The previous versions of this document are repealed.
Melexis © - No part of this document may be reproduced without the prior written consent of Melexis. (2022)
IATF 16949 and ISO 14001 Certified
For the latest version of this document or find your local contact, visit us at
https://www.melexis.com/en/product/MLX91220
DOC. № 3901091220, REVISION 3.0 - MAY 6, 2022
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