MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 4.8 kV High-Isolation SOP-16 Wide Body Package
1 Product Description
2 Features
The MagnTek® MT9222 product series is a fully
integrated Hall Effect-based isolated linear current
sensor device family designed for AC or DC current
sensing in industrial, commercial, and communications
systems. Each of the MT9222 consists of a precise, lowoffset, linear Hall circuit with a low-resistance current
conductor path located near the surface of the die.
Applied current flowing through this low-resistance
current conductor path generates a magnetic field that
the Hall IC converts into a proportional voltage. The
current is sensed differentially in order to reject
common-mode
fields,
improving
accuracy
in
magnetically noisy environments. Device accuracy is
optimized through the close proximity of the magnetic
field to the Hall transducer.
■
±0.5% Typical Linearity Over Temperature
■
Fast Output Response Time: 4 μs (typ.)
■
150kHz Signal Bandwidth
■
5.0V Single Supply Operation
■
-40℃~125℃ Operating Temperature
■
Primary Conductor Resistance
■
Output Voltage Proportional to AC or DC Current
A precise, proportional voltage is provided by the lowoffset, chopper-stabilized BCD Hall IC, which has been
accurately calibrated when it is manufactured. The
output of the device has a positive slope (>VOQ) when
an increasing current flows through the primary
current conduction path (from pins 1,2,3 and 4, to pins
5,6,7 and 8). The internal resistance of this conductive
path is 0.85 mΩ typical, providing low-power loss. The
terminals of the conductive path are electrically
isolated from the signal leads (pins 9 through 16). This
allows the MT9222 current sensor IC to be used in
high-side current sense applications without use other
costly isolation techniques.
■
Ratiometric Output from Supply Voltage
■
Extremely Stable Quiescent Output Voltage
■
Device Bandwidth is Set via FILTER Pin
■
Near Zero Magnetic Hysteresis
■
Safety Parameters: (CB Certificate Number: DK-116879-UL)
---4.8kVrms 1min Dielectric Surge Isolation
---1097Vrms, 1550VDC or VPK Working Voltage
---7.5mm Clearance Distance
---8.2mm Creepage Distance
■
Package Option:
The MT9222 family provides SOP-16W package to
customers, The package is RoHS compliant.
■
---0.85mΩ
■
Sensing Current Range: (AC or DC)
---±20A, ±25A, ±30A, ±50A, ±65A
---+40A, +50A
---SOP-16W
RoHS Compliant: (EU)2015/863
3 Applications
■
Low-power inverter current sensing
■
Motor phase and rail current sensing
■
PV String Inverters
■
Chargers and Converters
■
Switching Power Supplies
■
Overcurrent Protection
■
UPS Power
4 Product Overview of MT9222
CB Certificate Number:
DK-116879-UL
Not to scale
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1
Part No.
Description
MT9222WT
SOP-16W
Tape & Reel (1000 pcs/bag)
Rev
1.0
MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
Table of Contents
1
Product Description………...…….……………….……...…………………………………….…….………1
2
Features……………………………….……..……………………………………………………………….…….1
3
Applications……………………………………………………………………………………………………….1
4
Product Overview of MT9222…………………………………………………………………………….1
5
Functional Block Diagram …………………………………………………….………………….3
6
Pin Configuration and Function…..……………………………………………………………………..3
7
Naming Specification.………………………….…………………………………………………………….4
8
Selection Guide………………………………………………………………………………………………….4
9
Output Voltage vs. Input Current.………………………………………………………………………5
10
Typical Application Circuit………...…………………………………………………………………….....5
11
Electrical and Magnetic Characteristics………………………………………………………………6
11.1 Absolute Maximum Ratings………………….…………………………………………………………….6
11.2 Isolation and Package Characteristics…..……………………………………………………………..6
11.3 Life Time Characteristics………………….…..……………………………………………………………..6
11.4 ESD Rating……………………….…………………………………………………………………………………7
11.5 Electrical Characteristics…...………………………………………………………………………7
11.6 Accuracy Specifications…………….………..…………………………………………………………….8
12
Characteristic Definitions……….…………………………………………………………………………12
13
Package Material Information…………………………………………………………………………15
13.1 SOP-16W Package Information…………………………………………………………..15
14 Copy Rights and Disclaimer………………………………………………………………………..……..16
1
2
Originally Version
1.0 Version
Reversion History
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Update Logo and UL CB Certificate Number
2
Rev
1.0
MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
5 Functional Block Diagram
Figure.1
Functional Block Diagram
6 Pin Configuration and Functions
Top View
No.
Name
Description
1, 2, 3, 4
IP+
Input Current Positive Pin
IP+
1
16
NC
5, 6, 7, 8
IP-
Input Current Negative Pin
IP+
2
15
GND
9
NC
No Internal Connection
IP+
3
14
NC
10
VCC
Power Supply
IP+
4
13
FILTER
11
NC
No Internal Connection
IP-
5
12
VOUT
12
VOUT
Analog Output Signal
IP-
6
11
NC
IP-
7
10
VCC
13
FILTER
Filter Pin to Set Bandwidth
IP-
8
9
NC
14
NC
No Internal Connection
15
GND
Signal Ground
16
NC
No Internal Connection
Figure.2
Pin Configuration & Functions (SOP-16W)
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Rev
1.0
MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
7 Naming Specification
Part Number
MT9222
WT
50
B
R
5
❶
❷
❸
❹
❺
❻
❹ Current Polarity
❶ Series Name
❷ Package Type
Type
Package Type
WT
SOP-16W
Type
Current Polarity
B
Bidirectional---AC Current
U
Unidirectional---DC Current
❺ Output Mode
❸ Input Current Range
Type
Input Current Range
20
Full scale sensing range: 20A
25
Full scale sensing range: 25A
30
Full scale sensing range: 30A
40
Full scale sensing range: 40A
50
Full scale sensing range: 50A
65
Full scale sensing range: 65A
Type
Output Mode
R
Ratiometry output
❻ Power Supply
Type
Power Supply
5
VCC=5V
8 Selection Guide
Current Range
(A)
VCC
(V)
Sensitivity
(mV/A)
Package
Qty per Reel
(pcs)
MT9222WT-40UR5
+40
5
100
SOP-16W
1000
MT9222WT-50UR5
+50
5
80
SOP-16W
1000
MT9222WT-20BR5
±20
5
100
SOP-16W
1000
MT9222WT-25BR5
±25
5
80
SOP-16W
1000
MT9222WT-30BR5
±30
5
66.7
SOP-16W
1000
MT9222WT-50BR5
±50
5
40
SOP-16W
1000
MT9222WT-65BR5
±65
5
30.8
SOP-16W
1000
Ordering Part Number
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Rev
1.0
MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
3.5
2.5
Output Voltage (V)
3.5
1.5
2.5
1.5
0.5
0.5
Output Voltage (V)
4.5
4.5
9 Output Voltage vs. Input Current
0
10
20
30
40
50
-70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70
Input Current (A)
Figure.3
Input Current (A)
Output Voltage vs. Input Current
10 Typical Application Circuit
The typical application circuits of MT9222 series products include a bypass capacitor (CBYPASS capacitor
between VCC and GND is necessary) and a filter capacitor as an additional external components. On the
input side, pins 1,2,3 and 4 are shorted together, pins 5,6,7 and 8 are shorted together. The analog signal
output is measured directly from the VOUT pin. The signal is proportional to the IP of the primary sensing
current of AC or DC within the specified measurement range. The FILTER pin can be used to reduce
bandwidth to optimize noise performance, but at the same time proportionally increase response
time. CFILTER Recommends “Open”, and the response time is the fastest.
VCC
ADC
IP+
IP-
IP+
IP+
IP+
IP+
NC
GND
NC
Filter
IPIPIPIP-
VOUT
NC
VCC
NC
CBYPASS
CFILTER
CLOAD
GND
0.1uF
1nF
VIN
VREF
fc=1/(2*π*RF*CFILTER)
RF=1.8KΩ
Figure.4
Typical Application Circuit
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Rev
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MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
11 Electrical Magnetic Characteristics
11.1 Absolute Maximum Ratings
Absolute maximum ratings are limited values to be applied individually, and beyond which the serviceability of the
circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating
conditions for an extended period of time may affect device reliability.
Symbol
Parameters
Min
Max
Units
VCC
Supply Voltage
-
6
V
VRCC
Reverse Battery Voltage
-0.1
-
V
VOUT
Output Voltage
-
VCC+0.5
V
VROUT
Reverse Output Voltage
-0.1
-
V
IOUT(source)
Continuous Output Current
-
80
mA
IOUT(sink)
Continuous Output Current
-
40
mA
TA
Operating Ambient Temperature
-40
125
℃
TS
Storage Temperature
-50
150
℃
TJ
Junction Temperature
-
175
℃
11.2 Isolation and Package Characteristics
Symbol
Parameters
Test Conditions
Value
Units
VSURGE
Dielectric Surge
Strength Test Voltage
Tested ±5 pulses at 30 seconds in compliance
to IEC 61000-4-5 1.2 / 50 μs (width).
10000
V
ISURGE
Surge Current
Tested ±5 pulses at 30 seconds in compliance
to IEC 61000-4-5 8 / 20 μs (width).
13000
A
VISO
Dielectric Strength
Test Voltage
Test method per UL standard 60950-1
(edition 2).
VTEST = VISO, t = 60 s (qualification);
VTEST = 1.2 × VISO, t = 1 s (100% production)
4800
Vrms
VIOWM
Maximum Working
Isolation Voltage
Maximum working voltage for Basic isolation
according to UL60950-1
1550
VPK or VDC
1097
Vrms
CTI
Comparative Tracking
Index
Comparative tracking index according to
IEC60112:2009
600
V
DCL
External Clearance
Measured from input terminals to output
terminals, shortest distance through air.
7.5
mm
DCR
External Creepage
Measured from input terminals to output
terminals, shortest distance path along body.
8.2
mm
11.3 Life Time Characteristics
Symbol
Parameters
Test Condition
Min
Typ
Max
Unit
ESNST_DRIFT
Sensitivity Error Lifetime Drift
TA=-40~125℃
-
±3
-
%
ETOT_DRIFT
Total Output Error Lifetime Drift
TA=-40~125℃
-
±3
-
%
* Based on characterization data obtained during AEC-Q100 stress testing.
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Rev
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MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
11.4 ESD Ratings
Parameters
Reference
Grade
Human-body model (HBM)
AEC-Q100-002
Class IIIA
Charged-device model (CDM)
AEC-Q100-011
Class C3
Latch up
AEC-Q100-004
Class IIA
11.5 Electrical Specifications
At TA =-40~125 ℃, VCC=5V (unless otherwise specified)
Symbol
Parameters
Test Condition
Min
Typ
Max
Unit
VCC
Supply Voltage
-
4.5
5
5.5
V
ICC
Supply Current
TA = 25°C
-
14
20
mA
RIP
Primary Conductor Resistance
TA = 25°C
-
0.85
-
mΩ
BW
Internal Bandwidth
Small signal –3 dB; CL =
1 nF
-
150
-
KHz
TPO
Power on time
TA = 25°C, CL = 1nF,
IP=IPR(max) applied
-
190
-
us
TR
Rise time
IP = IPR(max),
A = 25°C, CL = 1nF
-
3
-
us
TPD
Propagation Delay
IP = IPR(max),
TA = 25°C, CL = 1nF
-
2
-
us
TRESP
Response Time
IP = IPR(max),
TA = 25°C, CL = 1nF
-
4
5
us
VOL
Analog Output Low Saturation
Level
RL>=4.7KΩ
-
-
0.3
V
VOH
Analog Output High Saturation
Level
RL>=4.7KΩ
VCC-0.3
-
-
V
CL
Output CAP Load
OUT to GND
-
1
10
nF
ROUT
DC Output resistance
-
-
5
Ω
RL
Output RES Load
OUT to GND
4.7
-
-
KΩ
OUT to VCC
4.7
-
-
KΩ
RF(int)
Internal filter resistance
-
1.8
-
KΩ
IND
Noise Density
Input-referenced noise
density; TA = 25°C, CL =
1 nF
-
450
-
uA/√Hz
ELIN
Nonlinearity error
Through full range of IP
-1.5
-
1.5
%
ERAT_SNST
Ratiometry Sensitivity Error
VCC = 4.5 to 5.5 V, TA =
25°C
-
±1.5
-
%
ERAT_VOQ
Ratiometry Quiescent Voltage
Output Error
VCC = 4.5 to 5.5 V, TA =
25°C
-
±1
-
%
* Device may be operated at higher primary current levels, ambient temperatures, and internal leadframe temperatures, provided the
Maximum Junction Temperature, is not exceeded.
Continued on the next page…
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Rev
1.0
MT9222
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with
4.8 kV High-Isolation SOP-16 wide Body Package
Electrical Specifications (continued)
At TA =-40~125 ℃, VCC=5V (unless otherwise specified)
Symbol
Parameters
Test Condition
Min
Typ
Max
Unit
CMFRR
Common Mode Field Rejection
Ratio
Uniform external
magnetic field
-
40
-
dB
SNST(match)
Hall Plate Sensitivity Matching
TA = 25°C
±1
-
%
VPORH
Power-On Reset High Voltage
TA = 25°C,
VCC rising
3.75
4
4.25
V
VPORL
Power-On Reset Low Voltage
TA = 25°C,
VCC falling
-
3.5
-
V
VPORHYS
Power-On Reset Hysteresis
TA = 25°C
-
0.5
-
V
TPORR
Power-On Reset Release Time
TA = 25°C,
VCC rising
-
30
-
us
TPORA
Power-On Reset Analog Delay
TA = 25°C,
VCC rising
-
5
-
us
ISCLP
Source Current of Over-CurrentLimit
-
-
80
-
mA
ISCLN
Sink Current of Over-CurrentLimit
-
-
40
-
mA
TSCLD
Detect Time for Over-CurrentLimit
TA = 25°C, IOUT>ISCLP
or IOUT