ACS773KCB-150B-PFF-T [ALLEGRO]
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth, Galvanically Isolated Current Sensor IC with 100 μΩ Current Conductor;
| 型号： | ACS773KCB-150B-PFF-T |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth, Galvanically Isolated Current Sensor IC with 100 μΩ Current Conductor 信息通信管理 传感器 换能器 |
| 文件： | 总26页 (文件大小：1951K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACS773
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
DESCRIPTION
FEATURES AND BENEFITS
• AEC-Q100 Grade 1 qualified
• Typical of 2.5 μs output response time
• 3.3 V supply operation
The Allegro™ ACS773 family of current sensor ICs provide
economicalandprecisesolutionsforACorDCcurrentsensing,
idealformotorcontrol,loaddetectionandmanagement,power
supply and DC-to-DC converter control, and inverter control.
The 2.5 µs response time enables overcurrent fault detection
in safety-critical applications.
• Ultra-low power loss: 100 μΩ internal conductor resistance
• Reinforced galvanic isolation allows use in economical,
high-side current sensing in high-voltage systems
• 4800 Vrms dielectric strength certified under UL60950-1
• Industry-leading noise performance with greatly
improved bandwidth through proprietary amplifier and
filter design techniques
• Integrated shield greatly reduces capacitive coupling
from current conductor to die due to high dV/dt signals,
and prevents offset drift in high-side, high-voltage
applications
• Greatly improved total output error through digitally
programmed and compensated gain and offset over the
full operating temperature range
• Small package size, with easy mounting capability
• Monolithic Hall IC for high reliability
The device consists of a precision, low-offset linear Hall
circuit with a copper conduction path located near the die.
Applied current flowing through this copper conduction path
generates a magnetic field which the Hall IC converts into a
proportionalvoltage.Deviceaccuracyisoptimizedthroughthe
close proximity of the magnetic signal to the Hall transducer.
A precise, proportional output voltage is provided by the
low-offset, chopper-stabilized BiCMOS Hall IC, which is
programmed for accuracy at the factory. Proprietary digital
temperature compensation technology greatly improves the
IC accuracy and temperature stability.
High-level immunity to current conductor dV/dt and stray
electricfieldsisofferedbyAllegroproprietaryintegratedshield
technology for low output voltage ripple and low offset drift
in high-side, high-voltage applications.
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• Extremely stable output offset voltage
The output of the device increases when an increasing current
flows through the primary copper conduction path (from
terminal 4 to terminal 5), which is the path used for current
sampling. The internal resistance of this conductive path is
100 μΩ typical, providing low power loss.
CB Certificate Number:
US-29755-UL
PACKAGE: 5-pin package (suffix CB)
The thickness of the copper conductor allows survival of the
device at high overcurrent conditions. The terminals of the
conductive path are electrically isolated from the signal leads
(pins 1 through 3). This allows the ACS773 family of sensor
PFF
Leadform
Leadform
Continued on the next page…
Not to scale
3.3 ꢀ
1
5
4
ꢀCC
ꢁP–
ꢁPꢂ
CBYP
0.1 µF
Application 1: the ACS773 outputs an analog
signal, VOUT, that varies linearly with the
bidirectional AC or DC primary sensed cur-
rent, IP, within the range specified. RF and
CF are for optimal noise management, with
values that depend on the application.
ACS773
2
3
ꢁP
GꢃD
CF
ꢀꢁOUT
ꢀOUT
RF
Typical Application
ACS773-DS, Rev. 5
MCO-0000364
March 14, 2019
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
DESCRIPTION (continued)
ICs to be used in applications requiring electrical isolation without
the use of opto-isolators or other costly isolation techniques.
The device is fully calibrated prior to shipment from the factory.
TheACS773 family is lead (Pb) free.All leads are plated with 100%
matte tin, and there is no Pb inside the package. The heavy gauge
leadframe is made of oxygen-free copper.
SELECTION GUIDE
Package
Sensitivity
Sens (Typ.)
(mV/A) [2]
Primary Sampled
[3]
Nominal TA
(°C)
Part Number [1]
Current , IP
(A)
Packing [4]
Terminals
Signal Pins
ACS773LCB-050B-PFF-T
ACS773LCB-100B-PFF-T
ACS773KCB-150B-PFF-T
ACS773ECB-200B-PFF-T
ACS773ECB-250U-PSF-T
Formed
Formed
Formed
Formed
Straight
Formed
Formed
Formed
Formed
Formed
±50
±100
±150
±200
250
26.4
–40 to 150
–40 to 125
–40 to 85
13.2
34 pieces
per tube
8.8
6.6
10.56
[1] Additional leadform options available for qualified volumes.
[2] Measured at VCC = 3.3 V.
[3] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[4] Contact Allegro for additional packing options.
ACS
773
L
CB
- 050 B - PFF - T
Lead (Pb) Free
Lead Form
Output Directionality:
B – Bidirectional (positive and negative current)
U – Unidirectional (only positive current)
Current Sensing Range (A)
Package Designator
Operating Temperature Range
3 Digit Part Number
Allegro Current Sensor
2
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
VCC
Notes
Rating
6.5
Unit
V
Supply Voltage
Reverse Supply Voltage
Output Voltage
VRCC
–0.5
V
VIOUT
6.5
V
Reverse Output Voltage
Output Source Current
Output Sink Current
VRIOUT
IOUT(Source)
IOUT(Sink)
TA
–0.5
V
VIOUT to GND
3
mA
mA
°C
°C
°C
Minimum pull-up resistor of 500 Ω from VCC to VIOUT
Range E, K, and L
10
Operating Ambient Temperature [1]
Maximum Junction Temperature
Storage Temperature
–40 to 150
165
TJ(max)
Tstg
–65 to 165
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Thermal
Application section of this datasheet for more information.
ISOLATION CHARACTERISTICS
Characteristic
Symbol
Notes
Rating
Unit
Tested ±5 pulses at 2/minute in compliance to IEC 61000-4-5
1.2 µs (rise) / 50 µs (width)
Dielectric Surge Strength Test Voltage
VSURGE
8000
V
Agency type-tested for 60 seconds per UL standard
60950-1, 2nd Edition. Tested at 3000 VRMS for 1 second
in production.
Dielectric Strength Test Voltage [2]
VISO
4800
VRMS
990
700
636
450
VPK or VDC
VRMS
For basic (single) isolation per UL standard 60950-1, 2nd
Edition
Working Voltage for Basic Isolation
VWVBI
VPK or VDC
VRMS
For reinforced (double) isolation per UL standard
60950-1, 2nd Edition
Working Voltage for Reinforced Isolation
VWFRI
[2] Allegro does not conduct 60-second testing. It is done only during the UL certification process.
THERMAL CHARACTERISTICS: May require derating at maximum conditions
Characteristic
Symbol
Test Conditions [3]
Value
Unit
Mounted on the Allegro evaluation board with 2800 mm2
(1400 mm2 on component side and 1400 mm2 on
opposite side) of 4 oz. copper connected to the primary
leadframe and with thermal vias connecting the copper
layers. Performance is based on current flowing through
the primary leadframe and includes the power consumed
by the PCB.
Package Thermal Resistance
RθJA
7
°C/W
[3] Additional thermal information available on the Allegro website
TYPICAL OVERCURRENT CAPABILITIES [4][5]
Characteristic
Symbol
Notes
Rating
1200
900
Unit
A
TA = 25°C, current is on for 1 second and off for 99 seconds, 100 pulses applied
TA = 85°C, current is on for 1 second and off for 99 seconds, 100 pulses applied
TA = 150°C, current is on for 1 second and off for 99 seconds, 100 pulses applied
Overcurrent
IPOC
A
600
A
[4] Test was done with Allegro evaluation board. The maximum allowed current is limited by TJ(max) only.
[5] For more overcurrent profiles, please see FAQ on the Allegro website, www.allegromicro.com.
3
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
IP+
VCC
To all subcircuits
CBYPASS
Programming
Control
Charge Pump Pulse
Generator
Undervoltage
Detection
Temperature
Sensor
EEPROM and
Control Logic
Active Temperature
Compensation
Sensitivity Control
Offset Control
Output Clamps
VIOUT
CL
Signal Recovery
IP–
GND
Functional Block Diagram
Terminal List Table
5
ꢈ
ꢀPꢁ
ꢀPꢂ
ꢃCC
ꢄNꢅ
1
ꢉ
3
Number
Name
VCC
GND
VIOUT
IP+
Description
1
2
3
4
5
Device power supply terminal
ꢃꢀꢆUꢇ
Signal ground terminal
Analog output signal
Pinout Diagram
Terminal for current being sampled
Terminal for current being sampled
IP–
4
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
COMMON OPERATING CHARACTERISTICS: Valid at TA = –40°C to 150°C, CBYP = 0.1 µF, and VCC = 3.3 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
ELECTRICAL CHARACTERISTICS
Supply Voltage
VCC
ICC
3
–
3.3
10
3.6
15
–
V
mA
µs
Supply Current
VCC ≤ 5 V, no load on output
Power-On Delay
tPOD
TA = 25°C
–
64
VPORH
VPORL
VCC rising at 1 V/ms
VCC falling at 1 V/ms
–
2.9
2.5
–
–
V
Power-On Reset Voltage
–
–
V
POR Hysteresis
VHYS(POR)
250
–
–
mV
kHz
Internal Bandwidth
BWi
Small signal –3 dB, CL = 4.7 nF
200
–
IP step = 50% of IP+, 10% to 90% rise time, TA = 25°C,
Rise Time
tr
–
–
–
2.4
1.2
2.5
–
–
–
µs
µs
µs
C
OUT = 470 pF
Propagation Delay Time
Response Time
tPROP
TA = 25°C, CL = 470 pF, IP step = 50% of IP+
TA = 25°C, CL = 470 pF, IP step = 50% of IP+,
90% input to 90% output
tRESPONSE
DC Output Impedance
ROUT
TA = 25°C
–
3.3
–
–
–
Ω
kΩ
nF
µΩ
V
Output Load Resistance
Output Load Capacitance
Primary Conductor Resistance
RLOAD(MIN)
CLOAD(MAX)
RPRIMARY
VSAT(HIGH)
VSAT(LOW)
VIOUT to GND, VIOUT to VCC
VIOUT to GND
4.7
–
1
10
–
TA = 25°C
–
VCC – 0.2
–
100
–
TA = 25°C, RL(PULLDWN) = 10 kΩ to GND
TA = 25°C, RL(PULLUP) = 10 kΩ to VCC
–
Output Saturation Voltage
–
200
mV
ERROR COMPONENTS
QVO Ratiometry Error [1]
Sens Ratiometry Error [1]
RatERRQVO
RatERRSens
VCC = 3.15 to 3.45 V
–
–
±0.15
±0.3
0.2
–
–
%
%
VCC = 3.15 to 3.45 V
Input referenced noise density; TA = 25°C, CL = 1 nF
Input referenced noise at 200 kHz; TA = 25°C, CL = 1 nF
Up to full scale of IP
–
–
mA/ √¯(Hz)
mARMS
%
Noise
IN
–
120
–
Nonlinearity [1]
Symmetry [1]
ELIN
–0.9
–0.8
±0.5
±0.4
0.9
0.8
ESYM
Over half-scale IP
%
[1] See Characteristic Definitions section of this datasheet.
5
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
X050B PERFORMANCE CHARACTERISTICS: TA = –40°C to 150°C [1], VCC= 3.3 V, unless otherwise specified
Characteristic
NOMINAL PERFORMANCE
Current Sensing Range
Symbol
Test Conditions
Min.
Typ.[2]
Max.
Unit
IPR
–50
–
–
50
–
A
mV/A
V
26.4 ×
VCC / 3.3
Sensitivity
Sens
IPR(min) < IP < IPR(max)
Zero Current Output Voltage
VIOUT(Q)
Bidirection; IP = 0 A
–
VCC/2
–
ACCURACY PERFORMANCE
TA = 25°C, CL = 1 nF
–
–
19.2
3.2
±0.5
±1
–
–
mVp-p
mVRMS
%
Noise
VN
TA = 25°C, CL = 1 nF
Full scale of IP, TA = 25°C
–1
1
Sensitivity Error
ESens
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
IP = 0 A, TA = 25°C
–1.25
–3.5
–8
1.25
3.5
8
%
±1.5
±4
%
VOE(TA)
VOE(TA)HT
VOE(TA)LT
IERROM
mV
mV
mV
mA
%
Electrical Offset Error
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C, after excursion of IPR(max)
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
–8
±4
8
–20
–
±6
20
250
1.5
3.5
Magnetic Offset Error
Total Output Error
210
±1
ETOT(HT)
ETOT(LT)
–1.5
–3.5
±1.5
%
LIFETIME ACCURACY CHARACTERISTICS [3]
ESens(LIFE)(HT) TA = 25°C to 150°C
ESens(LIFE)(LT) TA = –40°C to 25°C
–2.1
–3.5
–2.1
–3.5
–10
±1.6
±2.5
±1.7
±2.6
±7
2.1
3.5
2.1
3.5
10
%
%
Sensitivity Error Including Lifetime
Total Output Error Including Lifetime
Electric Offset Error Including Lifetime
ETOT(LIFE)(HT) TA = 25°C to 150°C
ETOT(LIFE)(LT) TA = –40°C to 25°C
EOFF(LIFE)(HT) TA = 25°C to 150°C
EOFF(LIFE)(LT) TA = –40°C to 25°C
%
%
mV
mV
–20
±8.9
20
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[2] Typical values are ±3 sigma values.
[3] Min/max limits are derived from AEC-Q100 Grade 1 testing.
6
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
X100B PERFORMANCE CHARACTERISTICS: TA = –40°C to 150°C [1], VCC= 3.3 V, unless otherwise specified
Characteristic
NOMINAL PERFORMANCE
Current Sensing Range
Symbol
Test Conditions
Min.
Typ.[2]
Max.
Unit
IPR
–100
–
100
–
A
mV/A
V
13.2 ×
VCC / 3.3
Sensitivity
Sens
IPR(min) < IP < IPR(max)
–
–
Zero Current Output Voltage
VIOUT(Q)
Bidirection; IP = 0 A
VCC/2
–
ACCURACY PERFORMANCE
TA = 25°C, CL = 1 nF
–
–
9.6
1.6
±0.5
±1
–
–
mVp-p
mVRMS
%
Noise
VN
TA = 25°C, CL = 1 nF
Full scale of IP, TA = 25°C
–1
1
Sensitivity Error
ESens
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
IP = 0 A, TA = 25°C
–1.25
–3.5
–8
1.25
3.5
8
%
±1.5
±4
%
VOE(TA)
VOE(TA)HT
VOE(TA)LT
IERROM
mV
mV
mV
mA
%
Electrical Offset Error
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C, after excursion of IPR(max)
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
–8
±4
8
–20
–
±6
20
400
1.5
3.5
Magnetic Offset Error
Total Output Error
280
±1
ETOT(HT)
ETOT(LT)
–1.5
–3.5
±1.5
%
LIFETIME ACCURACY CHARACTERISTICS [3]
ESens(LIFE)(HT) TA = 25°C to 150°C
ESens(LIFE)(LT) TA = –40°C to 25°C
–2.1
–3.5
–2.1
–3.5
–10
±1.6
±2.5
±1.7
±2.6
±7
2.1
3.5
2.1
3.5
10
%
%
Sensitivity Error Including Lifetime
Total Output Error Including Lifetime
Electric Offset Error Including Lifetime
ETOT(LIFE)(HT) TA = 25°C to 150°C
ETOT(LIFE)(LT) TA = –40°C to 25°C
EOFF(LIFE)(HT) TA = 25°C to 150°C
EOFF(LIFE)(LT) TA = –40°C to 25°C
%
%
mV
mV
–20
±8.9
20
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[2] Typical values are ±3 sigma values.
[3] Min/max limits are derived from AEC-Q100 Grade 1 testing.
7
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
X150B PERFORMANCE CHARACTERISTICS: TA = –40°C to 150°C [1], VCC= 3.3 V, unless otherwise specified
Characteristic
NOMINAL PERFORMANCE
Current Sensing Range
Symbol
Test Conditions
Min.
Typ.[2]
Max.
Unit
IPR
–150
–
150
–
A
mV/A
V
8.8 ×
VCC / 3.3
Sensitivity
Sens
IPR(min) < IP < IPR(max)
–
–
Zero Current Output Voltage
VIOUT(Q)
Bidirection; IP = 0 A
VCC/2
–
ACCURACY PERFORMANCE
TA = 25°C, CL = 1 nF
–
–
9.6
1.6
–
–
mVp-p
mVRMS
%
Noise
VN
TA = 25°C, CL = 1 nF
Full scale of IP, TA = 25°C
–1
±0.7
±0.8
±1.7
±4
1
Sensitivity Error
ESens
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
IP = 0 A, TA = 25°C
–1.25
–3.5
–8
1.25
3.5
8
%
%
VOE(TA)
VOE(TA)HT
VOE(TA)LT
IERROM
mV
mV
mV
mA
%
Electrical Offset Error
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C, after excursion of IPR(max)
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
–8
±4
8
–20
–
±6
20
450
1.5
3.5
Magnetic Offset Error
Total Output Error
280
±0.9
±1.7
ETOT(HT)
ETOT(LT)
–1.5
–3.5
%
LIFETIME ACCURACY CHARACTERISTICS [3]
ESens(LIFE)(HT) TA = 25°C to 150°C
ESens(LIFE)(LT) TA = –40°C to 25°C
–2.1
–3.5
–2.1
–3.5
–10
±1.6
±2.5
±1.7
±2.6
±7
2.1
3.5
2.1
3.5
10
%
%
Sensitivity Error Including Lifetime
Total Output Error Including Lifetime
Electric Offset Error Including Lifetime
ETOT(LIFE)(HT) TA = 25°C to 150°C
ETOT(LIFE)(LT) TA = –40°C to 25°C
EOFF(LIFE)(HT) TA = 25°C to 150°C
EOFF(LIFE)(LT) TA = –40°C to 25°C
%
%
mV
mV
–20
±8.9
20
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[2] Typical values are ±3 sigma values.
[3] Min/max limits are derived from AEC-Q100 Grade 1 testing.
8
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
X200B PERFORMANCE CHARACTERISTICS: TA = –40°C to 150°C [1], VCC= 3.3 V, unless otherwise specified
Characteristic
NOMINAL PERFORMANCE
Current Sensing Range
Symbol
Test Conditions
Min.
Typ.[2]
Max.
Unit
IPR
–200
–
200
–
A
mV/A
V
6.6 ×
VCC / 3.3
Sensitivity
Sens
IPR(min) < IP < IPR(max)
–
–
Zero Current Output Voltage
VIOUT(Q)
Bidirection; IP = 0 A
VCC/2
–
ACCURACY PERFORMANCE
TA = 25°C, CL = 1 nF
–
–
4.8
0.8
±0.5
±1
–
–
mVp-p
mVRMS
%
Noise
VN
TA = 25°C, CL = 1 nF
Full scale of IP, TA = 25°C
–1
1
Sensitivity Error
ESens
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
IP = 0 A, TA = 25°C
–1.25
–3.5
–8
1.25
3.5
8
%
±1.5
±4
%
VOE(TA)
VOE(TA)HT
VOE(TA)LT
IERROM
mV
mV
mV
mA
%
Electrical Offset Error
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C, after excursion of IPR(max)
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
–8
±4
8
–20
–
±6
20
450
1.5
3.5
Magnetic Offset Error
Total Output Error
380
±1
ETOT(HT)
ETOT(LT)
–1.5
–3.5
±1.5
%
LIFETIME ACCURACY CHARACTERISTICS [3]
ESens(LIFE)(HT) TA = 25°C to 150°C
ESens(LIFE)(LT) TA = –40°C to 25°C
–2.1
–3.5
–2.1
–3.5
–10
±1.6
±2.5
±1.7
±2.6
±7
2.1
3.5
2.1
3.5
10
%
%
Sensitivity Error Including Lifetime
Total Output Error Including Lifetime
Electric Offset Error Including Lifetime
ETOT(LIFE)(HT) TA = 25°C to 150°C
ETOT(LIFE)(LT) TA = –40°C to 25°C
EOFF(LIFE)(HT) TA = 25°C to 150°C
EOFF(LIFE)(LT) TA = –40°C to 25°C
%
%
mV
mV
–20
±8.9
20
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[2] Typical values are ±3 sigma values.
[3] Min/max limits are derived from AEC-Q100 Grade 1 testing.
9
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ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
X250U PERFORMANCE CHARACTERISTICS: TA = –40°C to 150°C [1], VCC= 3.3 V, unless otherwise specified
Characteristic
NOMINAL PERFORMANCE
Current Sensing Range
Symbol
Test Conditions
Min.
Typ.[2]
Max.
Unit
IPR
0
–
–
–
250
–
A
mV/A
V
10.56 ×
VCC / 3.3
Sensitivity
Sens
IPR(min) < IP < IPR(max)
Zero Current Output Voltage
VIOUT(Q)
Bidirection; IP = 0 A
VCC/10
–
ACCURACY PERFORMANCE
TA = 25°C, CL = 1 nF
–
–
11.52
1.28
±0.5
±1
–
–
mVp-p
mVRMS
%
Noise
VN
TA = 25°C, CL = 1 nF
Full scale of IP, TA = 25°C
–1
1
Sensitivity Error
ESens
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
IP = 0 A, TA = 25°C
–1.25
–3.5
–8
1.25
3.5
8
%
±1.5
±4
%
VOE(TA)
VOE(TA)HT
VOE(TA)LT
IERROM
mV
mV
mV
mA
%
Electrical Offset Error
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C, after excursion of IPR(max)
Full scale of IP, TA = 25°C to 150°C
Full scale of IP, TA = –40°C to 25°C
–8
±4
8
–20
–
±6
20
450
1.5
3.5
Magnetic Offset Error
Total Output Error
380
±1
ETOT(HT)
ETOT(LT)
–1.5
–3.5
±1.5
%
LIFETIME ACCURACY CHARACTERISTICS [3]
ESens(LIFE)(HT) TA = 25°C to 150°C
ESens(LIFE)(LT) TA = –40°C to 25°C
–2.1
–3.5
–2.1
–3.5
–10
±1.6
±2.5
±1.7
±2.6
±7
2.1
3.5
2.1
3.5
10
%
%
Sensitivity Error Including Lifetime
Total Output Error Including Lifetime
Electric Offset Error Including Lifetime
ETOT(LIFE)(HT) TA = 25°C to 150°C
ETOT(LIFE)(LT) TA = –40°C to 25°C
EOFF(LIFE)(HT) TA = 25°C to 150°C
EOFF(LIFE)(LT) TA = –40°C to 25°C
%
%
mV
mV
–20
±8.9
20
[1] All ACS773 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Absolute Maximum
Ratings and Thermal Application section of this datasheet for more information.
[2] Typical values are ±3 sigma values.
[3] Min/max limits are derived from AEC-Q100 Grade 1 testing.
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC PERFORMANCE DATA
Response Time (tRESPONSE
)
25 A excitation signal with 10%-90% rise time = 1 μs
Sensitivity = 26.4 mV/A, CBYPASS = 0.1 μF, CLOAD = 1 nF
Propagation Delay (tPROP
)
25 A excitation signal with 10%-90% rise time = 1 μs
Sensitivity = 26.4 mV/A, CBYPASS = 0.1 μF, CLOAD = 1 nF
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ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
Rise Time (tr)
25 A excitation signal with 10%-90% rise time = 1 μs
Sensitivity = 26.4 mV/A, CBYPASS = 0.1 μF, CLOAD = 1 nF
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC PERFORMANCE
ACS773LCB-050B-PFF-T
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
8
6
26.8
26.7
26.6
26.5
26.4
26.3
26.2
26.1
Avg-3σ
Avg
4
Avg+3σ
2
0
-2
-4
-6
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Nonlinearity versus Ambient Temperature
Total Output Error versus Ambient Temperature
1
0.8
0.6
0.4
0.2
0
2
1.5
1
Avg-3σ
Avg
Avg+3σ
0.5
0
-0.5
-1
Avg-3σ
Avg
Avg+3σ
-0.2
-1.5
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Magnetic Offset Error versus Ambient Temperature
160
140
120
100
80
60
Avg-3σ
40
Avg
20
Avg+3σ
0
-50
-25
0
25
50
75
100
125
150
Ta(℃)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC PERFORMANCE
ACS773LCB-100B-PFF-T
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
10
8
13.4
13.35
13.3
6
13.25
13.2
4
2
13.15
13.1
0
-2
-4
13.05
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Nonlinearity versus Ambient Temperature
Total Output Error versus Ambient Temperature
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2
1.5
1
0.5
0
-0.5
-1
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Magnetic Offset Error versus Ambient Temperature
300
250
200
150
100
50
0
-50
-25
0
25
50
75
100
125
150
Ta(℃)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC PERFORMANCE
ACS773KCB-150B-PFF-T
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
6
4
9
8.95
8.9
Avg-3σ
Avg
Avg+3σ
2
8.85
8.8
0
8.75
8.7
-2
-4
-6
8.65
8.6
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Nonlinearity versus Ambient Temperature
Total Output Error versus Ambient Temperature
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2
1.5
1
Avg-3σ
Avg
Avg+3σ
0.5
0
-0.5
-1
Avg-3σ
Avg
-1.5
-2
Avg+3σ
-2.5
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Magnetic Offset Error versus Ambient Temperature
350
300
250
200
150
100
50
Avg-3σ
Avg
Avg+3σ
0
-50
-25
0
25
50
75
100
125
150
Ta(℃)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC PERFORMANCE
ACS773ECB-200B-PFF-T
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
10
8
6.75
6.7
Avg-3σ
Avg
Avg-3σ
Avg
6
Avg+3σ
Avg+3σ
6.65
6.6
4
2
0
6.55
6.5
-2
-4
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Nonlinearity versus Ambient Temperature
Total Output Error versus Ambient Temperature
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3
2.5
2
Avg-3σ
Avg
Avg+3σ
1.5
1
0.5
0
Avg-3σ
Avg
-0.5
-1
Avg+3σ
-50
-25
0
25
50
75
100
125
150
-50
-25
0
25
50
75
100
125
150
Ta(℃)
Ta(℃)
Magnetic Offset Error versus Ambient Temperature
350
300
250
200
150
100
50
Avg-3σ
Avg
Avg+3σ
0
-50
-25
0
25
50
75
100
125
150
Ta(℃)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
CHARACTERISTIC DEFINITIONS
Definitions of Accuracy Characteristics
ies in proportion to either a positive or negative half-scale primary
current. The following equation is used to derive symmetry:
SENSITIVITY (Sens)
The change in sensor IC output in response to a 1A change
through the primary conductor. The sensitivity is the product
of the magnetic circuit sensitivity (G/A; 1 G = 0.1 mT) and the
linear IC amplifier gain (mV/G). The linear IC amplifier gain is
programmed at the factory to optimize the sensitivity (mV/A) for
the full-scale current of the device.
VIOUT_+half-scale amperes – VIOUT(Q)
100 ×
(
)
VIOUT(Q) – VIOUT_–half-scale amperes
RATIOMETRY ERROR
The device features a ratiometric output. This means that the
quiescent voltage output, VIOUTQ, and the magnetic sensitivity,
Sens, are proportional to the supply voltage, VCC.The ratiometric
change (%) in the quiescent voltage output is defined as:
SENSITIVITY ERROR (ESens
)
The sensitivity error is the percent difference between the mea-
sured sensitivity and the ideal sensitivity. For example, in the case
of VCC = 3.3 V:
SensMeas(3.3V) – SensIdeal(3.3V)
(VIOUTQ(VCC) / VIOUTQ(3.3V)
VCC / 3.3 V
)
ESens
× 100 (%)
=
RatErrQVO
=
1 –
× 100%
[
]
SensIDEAL(3.3V)
NOISE (VN)
and the ratiometric change (%) in sensitivity is defined as:
The noise floor is derived from the thermal and shot noise
observed in Hall elements. Dividing the noise (mV) by the sensi-
tivity (mV/A) provides the smallest current that the device is able
to resolve.
(Sens(VCC) / Sense(3.3V)
)
RatErrSens = 1 –
× 100%
[
]
VCC / 3.3 V
ZERO CURRENT OUTPUT VOLTAGE (V
)
IOUT(Q)
NONLINEARITY (ELIN
)
The output of the sensor when the primary current is zero. It
nominally remains at 0.5 × VCC for a bidirectional device and 0.1
× VCC for a unidirectional device. For example, in the case of a
bidirectional output device, VCC = 3.3 V translates into VIOUT(Q)
= 1.65 V. Variation in VIOUT(Q) can be attributed to the resolution
of the Allegro linear IC quiescent voltage trim and thermal drift.
The ACS773 is designed to provide a linear output in response
to a ramping current. Consider two current levels: I1 and I2. Ide-
ally, the sensitivity of a device is the same for both currents, for
a given supply voltage and temperature. Nonlinearity is present
when there is a difference between the sensitivities measured at
I1 and I2. Nonlinearity is calculated separately for the positive
(ELINpos ) and negative (ELINneg ) applied currents as follows:
ELECTRICAL OFFSET VOLTAGE (VOE
)
The deviation of the device output from its ideal quiescent value
of 0.5 × VCC (bidirectional) or 0.1 × VCC (unidirectional) due to
nonmagnetic causes. To convert this voltage to amperes, divide by
the device sensitivity, Sens.
ELINpos = 100 (%) × {1 – (SensIPOS2 / SensIPOS1) }
ELINneg = 100 (%) × {1 – (SensINEG2 / SensINEG1)}
where:
MAGNETIC OFFSET ERROR (IERROM
)
SensIx = (VIOUT(Ix) – VIOUT(Q))/ Ix
The magnetic offset is due to the residual magnetism (remnant
field) of the core material. The magnetic offset error is highest
when the magnetic circuit has been saturated, usually when the
device has been subjected to a full-scale or high-current overload
condition. The magnetic offset is largely dependent on the mate-
rial used as a flux concentrator. The larger magnetic offsets are
observed at the lower operating temperatures.
and IPOSx and INEGx are positive and negative currents.
Then:
ELIN = max( ELINpos , ELINneg
SYMMETRY (ESYM
The degree to which the absolute voltage output from the IC var-
)
)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
The Total Output Error incorporates all sources of error and is a
function of IP.
TOTAL OUTPUT ERROR (ETOT
)
The difference between the current measurement from the sensor
IC and the actual current (IP), relative to the actual current. This
is equivalent to the difference between the ideal output voltage
and the actual output voltage, divided by the ideal sensitivity,
relative to the current flowing through the primary conduction
path:
At relatively high currents, ETOT will be mostly due to sensitiv-
ity error, and at relatively low currents, ETOT will be mostly due
to Offset Voltage (VOE). In fact, as IP approaches zero, ETOT
approaches infinity due to the offset voltage. This is illustrated
in Figure 1 and Figure 2. Figure 1 shows a distribution of output
voltages versus IP at 25°C and across temperature. Figure 2
shows the corresponding ETOT versus IP.
VIOUT(IP) – VIOUT(ideal)(IP)
× 100(%)
ETOT(IP) =
Sensideal × IP
where
VIOUT(ideal)(IP) = VIOUT(Q) + (SensIDEAL × IP )
Accuracy Across
Temperature
Increasing
V
(V)
IOUT
Accuracy at
25°C Only
+E
TOT
Ideal V
IOUT
Accuracy Across
Temperature
Accuracy at
25°C Only
Across Temperature
25°C Only
I
(min)
PR
+I (A)
P
V
IOUT(Q)
–I (A)
P
–I
P
+I
P
Full Scale I
P
I (max)
PR
0 A
Accuracy at
25°C Only
Decreasing
(V)
V
Accuracy Across
Temperature
IOUT
–E
TOT
Figure 2: Total Output Error versus Sensed Current
Figure 1: Output Voltage versus Sensed Current
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DEFINITIONS OF DYNAMIC RESPONSE CHARACTERISTICS
POWER-ON DELAY (tPOD
)
V
When the supply is ramped to its operating voltage, the device
requires a finite time to power its internal components before
responding to an input magnetic field. Power-On Delay, tPOD, is
defined as the time it takes for the output voltage to settle within
±10% of its steady-state value under an applied magnetic field,
after the power supply has reached its minimum specified operat-
ing voltage, VCC(min), as shown in the chart at right.
VCC
VCC(typ)
V
IOUT
90% V
IOUT
VCC(min)
tPOD
t1
t2
RISE TIME (tr)
The time interval between a) when the sensor reaches 10% of
its full-scale value, and b) when it reaches 90% of its full-scale
value.
t1= time at which power supply reaches
minimum specified operating voltage
t2= time at which output voltage settles
within ±10% of its steady-state value
under an applied magnetic field
PROPAGATION DELAY (tPROP
)
0
The time interval between a) when the sensed current reaches
20% of its full-scale value, and b) when the sensor output reaches
20% of its full-scale value.
+t
Figure 3: Power-On Delay (tPOD
)
RESPONSE TIME (tRESPONSE
)
Primary Current
(%)
90
The time interval between a) when the applied current reaches
90% of its final value, and b) when the sensor reaches 90% of its
output corresponding to the applied current.
V
IOUT
Rise Time, t
r
20
10
0
t
Propagation Delay, t
PROP
Figure 4: Rise Time (tr) and Propagation Delay (tPROP
)
Primary Current
(%)
90
V
IOUT
Response Time, t
RESPONSE
0
t
Figure 5: Response Time (tRESPONSE
)
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
FUNCTIONAL DESCRIPTION
Power-On Reset (POR)
The descriptions in this section assume: temperature = 25°C, no
output load (RL, CL), and IP = 0 A.
VCC drops below VCC(min) = 3 V
If VCC drops below VPORH [3′] but remains higher than VPORL
[4′], the output will continue to be VCC/2.
Power-Up
At power-up, as VCC ramps up, the output is in a high-impedance
state. When VCC crosses VPORH (location [1] in Figure 6 and
[1′] in Figure 7), the POR Release counter starts counting for
tPO [2, 2′]. At this point, the output will go to VCC/2.
Power-Down
As VCC ramps down below VPORL [3, 5’], the output will enter a
high-impedance state.
ꢂ
ꢄCC
3.3
1
3
ꢄPꢀRH
ꢄPꢀRL
ꢊNꢋ
ꢌime
ꢄꢀUꢌ
tPꢀ
1.ꢅ5
Sloꢇe ꢈ
ꢄCC ꢉꢂ
ꢊNꢋ
ꢌime
High ꢆmꢇedance
High ꢆmꢇedance
Figure 6: POR: Slow Rise Time Case
1ꢁ
ꢂꢁ
ꢄCC
3.3
ꢃꢁ
5ꢁ
3ꢁ
ꢄPꢀRH
ꢄPꢀRL
ꢊNꢋ
ꢌime
ꢄꢀUꢌ
tPꢀ
Sloꢇe ꢈ
ꢄCC ꢉꢂ
Sloꢇe ꢈ
ꢄCC ꢉꢂ
1.ꢅ5
Figure 7: POR: Fast Rise Time Case
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
EEPROM Error Checking And Correction
Hamming code methodology is implemented for EEPROM
checking and correction. The device has ECC enabled after
power-up. If an uncorrectable error has occurred, the VOUT pin
will go to high impedance and the device will not respond to
applied magnetic field.
21
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
Chopper Stabilization Technique
When using Hall-effect technology, a limiting factor for
switchpoint accuracy is the small signal voltage developed across
the Hall element. This voltage is disproportionally small relative to
the offset that can be produced at the output of the Hall sensor IC.
This makes it difficult to process the signal while maintaining an
accurate, reliable output over the specified operating temperature
and voltage ranges.
sourced signal then can pass through a low-pass filter, while the
modulated DC offset is suppressed.
In addition to the removal of the thermal and stress related offset,
this novel technique also reduces the amount of thermal noise
in the Hall sensor IC while completely removing the modulated
residue resulting from the chopper operation. The chopper sta-
bilization technique uses a high-frequency sampling clock. For
demodulation process, a sample-and-hold technique is used. This
high-frequency operation allows a greater sampling rate, which
results in higher accuracy and faster signal-processing capability.
This approach desensitizes the chip to the effects of thermal and
mechanical stresses, and produces devices that have extremely
Chopper stabilization is a unique approach used to minimize
Hall offset on the chip. Allegro employs a technique to remove
key sources of the output drift induced by thermal and mechani-
cal stresses. This offset reduction technique is based on a signal
modulation-demodulation process. The undesired offset signal is
separated from the magnetic field-induced signal in the frequency stable quiescent Hall output voltages and precise recoverabil-
domain, through modulation. The subsequent demodulation acts ity after temperature cycling. This technique is made possible
as a modulation process for the offset, causing the magnetic field- through the use of a BiCMOS process, which allows the use of
induced signal to recover its original spectrum at baseband, while low-offset, low-noise amplifiers in combination with high-density
the DC offset becomes a high-frequency signal. The magnetic-
logic integration and sample-and-hold circuits.
Regulator
Clock/Logic
Hall Element
Amp
Anti-Aliasing
LP Filter
Tuned
Filter
Figure 8: Concept of Chopper Stabilization Technique
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Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
APPLICATION INFORMATION
Thermal Rise vs. Primary Current
ASEK773 Evaluation Board Layout
Self-heating due to the flow of current should be considered dur-
ing the design of any current sensing system. The sensor, printed
circuit board (PCB), and contacts to the PCB will generate heat
as current moves through the system.
Thermal data shown in Figure 9 was collected using the
ASEK773 Evaluation Board (TED-85-0385-001). This board
includes 1500 mm2 of 2 oz. (0.0694 mm) copper connected to
pins 4 and 5, with thermal vias connecting the layers. Top and
bottom layers of the PCB are shown below in Figure 10.
The thermal response is highly dependent on PCB layout, copper
thickness, cooling techniques, and the profile of the injected cur-
rent. The current profile includes peak current, current “on-time”,
and duty cycle. While the data presented in this section was
collected with direct current (DC), these numbers may be used
to approximate thermal response for both AC signals and current
pulses.
The plot in Figure 9 shows the measured rise in steady-state die
temperature of the ACS773 versus DC input current at an ambi-
ent temperature, TA, of 25°C. The thermal offset curves may be
directly applied to other values of TA.
Figure 9: Self-Heating in the CB Package
Due to Current Flow
The thermal capacity of the ACS773 should be verified by the
end user in the application’s specific conditions. The maximum
junction temperature, TJ(max), should not be exceeded. Further
information on this application testing is available in the DC
Current Capability and Fuse Characteristics of Current Sensor
ICs with 50 to 200 A Measurement Capability application note on
the Allegro website (https://www.allegromicro.com/en/Design-
Center/Technical-Documents/Hall-Effect-Sensor-IC-Publications/
DC-Current-Capability-Fuse-Characteristics-Current-Sensor-ICs-
50-200-A.aspx).
Figure 10: Top and Bottom Layers
for ASEK773 Evaluation Board
Gerber files for the ASEK773 evaluation board are available for
download from the Allegro website; see the technical documents
section of the ACS773 webpage (https://www.allegromicro.com/
en/Products/Current-Sensor-ICs/Fifty-To-Two-Hundred-Amp-
Integrated-Conductor-Sensor-ICs/Acs773.aspx).
23
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
PACKAGE OUTLINE DRAWINGS
For Reference Only – Not for Tooling Use
(Reference DWG-9111 & DWG-9110)
Dimensions in millimeters – NOT TO SCALE
Dimensions exclusive of mold flash, gate burs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
14.0 0.ꢀ
0.5
3.5 0.2
1° 2°
R1 = 1.0
4.0 0.ꢀ
R2 = 2.05
3.0 0.ꢀ
R3 = 3.0
1.50 0.10
5
4
A
Ø
0.5
0.8
B
3
4
17.5 0.2
21.4
13.00 0.10
4.40 0.10
Branded
Face
Ø
1.9 0.ꢀ
0.51 0.10
Ø
1.5
2.9 0.2
1
2
3
+0.060
1.91
0.381
–0.030
5° 5°
3.5 0.2
10.00 0.10
B
PCB Layout Reference View
XXXXXXX
XXX-XXX
7.00 0.10
XXXXXXX
XXXX
A
B
C
Dambar removal intrusion
Perimeter through-holes recommended
Branding scale and appearance at supplier discretion
C
Standard1Branding Reference View
Lines 1, 2, 3, 4 = 7 characters.
Line 1: Part Number
Line 2: Package Temperature - Amperes
Line 3: Lot Number
Line 4: Date Code, Logo A
Creepage distance, current terminals to signal pins: 7.25 mm
Clearance distance, current terminals to signal pins: 7.25 mm
Package mass: 4.63 g typical
Figure 11: Package CB, 5-Pin, Leadform PFF
24
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
For Reference Only – Not for Tooling Use
(Reference DWG-9111, DWG-9110)
Dimensions in millimeters – NOT TO SCALE
Dimensions exclusive of mold flash, gate burs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
14.0 0.2
4.0 0.2
3.0 0.2
∅ 0.8
∅ 1.5
5
4
1.50 0.10
1.91
B
PCB Layout Reference View
2.75 0.10
A
23.50 0.5
XXXXXXX
XXX-XXX
13.00 0.10
XXXXXXX
XXXX
4.40 0.10
Branded
Face
1.9 0.2
0.51 0.10
Standard1Branding Reference View
2.9 0.2
C
1
2
3
Lines 1, 2, 3, 4 = 7 characters.
+0.060
–0.030
0.381
5° 5°
3.5 0.2
Line 1: Part Number
Line 2: Package Temperature - Amperes
Line 3: Lot Number
Line 4: Date Code, Logo A
10.00 0.10
7.00 0.10
A
Dambar removal intrusion
B
C
Perimeter through-holes recommended
Branding scale and appearance at supplier discretion
Figure 12: Package CB, 5-Pin, Leadform PSF
25
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,
ACS773
Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor
Revision History
Number
Date
Description
–
December 12, 2017
February 9, 2018
May 29, 2018
Initial release
Added Dielectric Surge Strength Test Voltage characteristic (page 3) and EEPROM Error Checking
and Correction section (page 15). Updated Power-On Reset (POR) section (page 14).
1
2
Added Characteristic Performance plots and -150B part variant.
Added -PSF leadform option and Applications Information section (page 22); updated Typical
Application (page 1), pinout diagram (page 4), TOP to TA (pages 2 and 5-9), and Character
Performance plots (page 11-12).
3
November 2, 2018
4
5
December 12, 2018
Added UL certificate; updated package outline drawing PCB layouts and branding (pages 24-25)
Updated package branding (pages 24-25) and Temperature ratings (pages 2-3, 6-10)
March 14, 2019
Copyright 2019, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such departures from the detail specifications as may be required to
permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that
the information being relied upon is current.
Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of
Allegro’s product can reasonably be expected to cause bodily harm.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its
use; nor for any infringement of patents or other rights of third parties which may result from its use.
Copies of this document are considered uncontrolled documents.
For the latest version of this document, visit our website:
www.allegromicro.com
26
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
相关型号：
ACS773LCB-050B-PFF-T
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth, Galvanically Isolated Current Sensor IC with 100 μΩ Current Conductor
ALLEGRO
ACS773LCB-050U-PFF-T
High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth, Galvanically Isolated Current Sensor IC with 100 μΩ Current Conductor
ALLEGRO
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