Features and Benefits
▪ No external sense resistor required; single package solution
▪ 1.2 mΩ internal conductor resistance; reduced power loss
▪ Economical low- and high-side current sensing
▪ Output voltage proportional to AC or DC currents
▪ ±12.5 A and ±25 A full scale sensing ranges
▪ Overcurrent ¯
F
¯¯
A
¯¯
U
¯¯
L
¯¯
T
¯
trips and latches at 100% of full-scale current
▪ Low-noise analog signal path
▪ 100 kHz bandwidth
▪ Small footprint, low-profile SOIC8 package
▪ 3.0 to 5.5 V, single supply operation
▪ Integrated electrostatic shield for output stability
▪ Factory-trimmed for accuracy
▪ Extremely stable output offset voltage
▪ Zero magnetic hysteresis
▪ Ratiometric output from supply voltage
Description
The Allegro® ACS711 provides economical and precise
solutions for AC or DC current sensing in <100 V audio,
communications systems, and white goods applications.
The device package allows for easy implementation by the
customer. Typical applications include circuit protection, current
monitoring, and motor and inverter control.
The device consists of a linear Hall sensor circuit with a copper
conduction path located near the surface of the die. Applied
current flowing through this copper conduction path generates
a magnetic field which is sensed by the integrated Hall IC
and converted into a proportional voltage. Device accuracy is
optimized through the close proximity of the magnetic signal
to the Hall transducer.
The output of the device has a positive slope proportional to
the current flow from IP+ to IP– (pins 1 and 2, to pins 3 and
4). The internal resistance of this conductive path is 1.2 mΩ
typical, providing a non-intrusive measurement interface that
saves power in applications that require energy efficiency.
The ACS711 is optimized for low-side current sensing
applications, although the terminals of the conductive path are
electrically isolated from the sensor leads (pins 5 through 8),
providing sufficient internal creepage and clearance dimensions
for a low AC or DC working voltage applications. The thickness
IP+
IP+
IP–
IP–
IP
5
GND
2
4
1
3
ACS711
7
8
+3.3 V
6
VIOUT
VCC CBYP
0.1 F
CLOAD
RPU
FAULT
Application 1. The ACS711 outputs an analog signal, VIOUT
,
that varies linearly with the bi-directional AC or DC primary
current, IP
, within the range specified. The ¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
pin trips
when IP reaches ±100% of its full-scale current.
ACS711
ACS711-DS, Rev. 3
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for <100 V Isolation Applications
Continued on the next page…
Approximate Scale 1:1
Package: 8 Lead SOIC (suffix LC)
Typical Application
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Absolute Maximum Ratings
Characteristic Symbol Notes Rating Units
Supply Voltage VCC 7V
Reverse Supply Voltage VRCC –0.1 V
Output Voltage VIOUT 7V
Reverse Output Voltage VRIOUT –0.1 V
Working Voltage for Basic Isolation VWORKING Voltage applied between pins 1-4 and 5-8 100 VAC peak
or VDC
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Pin Voltage VFAULT 7V
Overcurrent Transient Tolerance IPOC 1 pulse, 100 ms 100 A
Nominal Operating Ambient Temperature TA
Range E –40 to 85 ºC
Range K –40 to 125 ºC
Maximum Junction Temperature TJ(max) 165 ºC
Storage Temperature Tstg –65 to 170 ºC
Selection Guide
Part Number Packing1TA
(°C)
Optimized Accuracy Range, IP
(A)
Sensitivity, Sens
(Typ) (mV/A)
ACS711ELCTR-12AB-T2Tape and reel, 3000 pieces/reel –40 to 85 ±12.5 110
ACS711ELCTR-25AB-T2Tape and reel, 3000 pieces/reel –40 to 85 ±25 55
ACS711KLCTR-12AB-T2Tape and reel, 3000 pieces/reel –40 to 125 ±12.5 110
ACS711KLCTR-25AB-T2Tape and reel, 3000 pieces/reel –40 to 125 ±25 55
1Contact Allegro for additional packing options.
2Sensitivity measured with VCC = 3.3 V.
of the copper conductor allows survival of the device at up to 5×
overcurrent conditions.
The ACS711 is provided in a small, surface mount SOIC8 package.
The leadframe is plated with 100% matte tin, which is compatible
with standard lead (Pb) free printed circuit board assembly processes.
Internally, the device is Pb-free, except for flip-chip high-temperature
Pb-based solder balls, currently exempt from RoHS. The device is
fully calibrated prior to shipment from the factory.
Description (continued)
Thermal Characteristics
Characteristic Symbol Test Conditions1Value Units
Package Thermal Resistance,
Junction to Lead RθJL Mounted on Allegro ASEK 711 evaluation board 5 ºC/W
Package Thermal Resistance,
Junction to Ambient2RθJA
Mounted on Allegro 85-0404 evaluation board,
includes the power consumed by the board 23 ºC/W
1Additional thermal information available on the Allegro website
2The Allegro evaluation board has 1500 mm2 of 2 oz. copper on each side, connected to pins 1 and 2, and to pins 3 and 4, with thermal vias
connecting the layers. Performance values include the power consumed by the PCB. Further details on the board are available from the
Frequently Asked Questions document on our website.
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
VCC
VIOUT
240 k
FAULT
GND
Dynamic Offset
Cancellation
IP+
IP+
IP
IP
Sensitivity
Trim
Signal
Recovery
Power-on
Reset
D
Reset
Master Current
Supply
Sensitivity
Temperature
Coefficient Trim
To all subcircuits Current Fault
Comparator
0 Ampere
Offset Adjust
Hall Current
Drive
CLOAD
CBYP
RPU
VCC
IP+
IP+
IP–
IP–
VCC
VIOUT
FAULT
GND
1
2
3
4
8
7
6
5
Terminal List Table
Number Name Description
1 and 2 IP+ Terminals for current being sensed; fused internally
3 and 4 IP– Terminals for current being sensed; fused internally
5 GND Signal ground terminal
6¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯ Overcurrent fault; active low
7 VIOUT Analog output signal
8 VCC Device power supply terminal
Functional Block Diagram
Pin-out Diagram
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
COMMON OPERATING CHARACTERISTICS over full range of TA and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
ELECTRICAL CHARACTERISTICS
Supply Voltage1VCC 3 3.3 5.5 V
Supply Current ICC VCC = 3.3 V, output open – 4 5.5 mA
Output Capacitance Load CLOAD VIOUT to GND – – 1 nF
Output Resistive Load RLOAD VIOUT to GND 15 – – k
Primary Conductor
Resistance RIP TA = 25°C – 1.2 – m
VIOUT Rise Time trIP = IPMAX, TA = 25°C, COUT = open – 3.5 – s
Propagation Delay Time tPROP IP = IP(max), TA = 25°C, COUT = open – 1.2 – s
Response Time tRESPONSE IP = IP(max), TA = 25°C, COUT = open – 4.6 – s
Internal Bandwidth2BWI–3 dB, TA = 25°C – 100 – kHz
Nonlinearity ELIN Over full range of IP–±1–%
Symmetry ESYM Apply full scale IP– 100 – %
VIOUT Saturation Voltages VIOH
VCC–
0.3 ––V
VIOL – – 0.3 V
Quiescent Output Voltage VIOUT(Q) IP = 0 A, TA = 25°C – VCC / 2 – V
Power-On Time tPO
Output reaches 90% of steady-state level, TA = 25°C,
20 A present on primary conductor –35–s
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Pin Characteristics
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Operating Point IFAULT – ± 1 x IP–A
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Output Pullup
Resistor RPU 1––k
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Output Voltage VOH –VCC–
0.3 –V
VOL RPU = 1 k– 0.3 – V
¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
Response Time tFAULT Measured from | IP | > | IFAULT | to VFAULT VOL – 1.3 – s
VCC Off Voltage Level for
Fault Reset3VCCFR – – 200 mV
VCC Off Duration for
Fault Reset3tCCFR 100 – – s
1Devices are programmed for maximum accuracy at 3.3 V VCC levels. The device contains ratiometry circuits that accurately alter the 0 A Output
Voltage and Sensitivity level of the device in proportion to the applied VCC level. However, as a result of minor nonlinearities in the ratiometry circuit
additional output error will result when VCC varies from the 3.3 V VCC level. Customers that plan to operate the device from a 5 V regulated supply
should contact their local Allegro sales representative regarding expected device accuracy levels under these bias conditions.
2Calculated using the formula BWI = 0.35 / tr.
3After the ¯
F
¯
¯
A
¯
U ¯¯
L
¯
¯
T
¯
pin is latched low, the only way to reset it is through a power-off and power-on cycle on the VCC pin. To get a guaranteed fault
reset, VCC must stay below VCCFR for a period greater than tCCFR before settling to the normal operation voltage (3 to 5.5 V).
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
5
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
x12.5A PERFORMANCE CHARACTERISTICS for E TEMPERATURE RANGE TA = 25°C and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range IP–12.5 – 12.5 A
Sensitivity Sens
Over full range of IP– 110 – mV/A
Full scale of IP applied for 5 ms, TA = –40°C to 25°C – 110 – mV/A
Full scale of IP applied for 5 ms, TA = 25°C to 85°C – 110 – mV/A
Noise2VNOISE TA = 25 °C, no external low pass filter on VIOUT – 11 – mV
Electrical Offset Voltage
VOE(TA) IP = 0 A, TA = 25°C – ±5 – mV
VOE(TOP)HT IP = 0 A, TA = 25°C to 85°C – ±40 – mV
VOE(TOP)LT IP = 0 A, TA = –40°C to 25°C – ±50 – mV
Total Output Error3ETOT IP = ±12.5 A,TA = –40°C to 85°C – ±5 – %
1See Characteristic Performance Data for parameter distributions over temperature.
2±3 sigma noise voltage.
3Percentage of IP, with IP = ±12.5 A.
x12.5A PERFORMANCE CHARACTERISTICS for K TEMPERATURE RANGE1 TA = 25°C and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range IP–12.5 – 12.5 A
Sensitivity Sens
Over full range of IP– 110 – mV/A
Full scale of IP applied for 5 ms, TA = –40°C to 25°C – 110 – mV/A
Full scale of IP applied for 5 ms, TA = 25°C to 125°C – 110 – mV/A
Noise2VNOISE TA = 25 °C, no external low pass filter on VIOUT – 11 – mV
Electrical Offset Voltage
VOE(TA) IP = 0 A, TA = 25°C – ±5 – mV
VOE(TOP)HT IP = 0 A, TA = 25°C to 125°C – ±40 – mV
VOE(TOP)LT IP = 0 A, TA = –40°C to 25°C – ±50 – mV
Total Output Error3ETOT IP = ±12.5 A,TA = –40°C to 125°C – ±5 – %
1See Characteristic Performance Data for parameter distributions over temperature.
2±3 sigma noise voltage.
3Percentage of IP, with IP = ±12.5 A.
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
6
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
x25A PERFORMANCE CHARACTERISTICS for K TEMPERATURE RANGE1 TA = 25°C and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range IP–25 – 25 A
Sensitivity Sens
Over full range of IP– 55 – mV/A
Full scale of IP applied for 5 ms, TA = –40°C to 25°C – 55 – mV/A
Full scale of IP applied for 5 ms, TA = 25°C to 125°C – 55 – mV/A
Noise2VNOISE TA = 25 °C, no external low pass filter on VIOUT – 8 – mV
Electrical Offset Voltage
VOE(TA) IP = 0 A, TA = 25°C – ±5 – mV
VOE(TOP)HT IP = 0 A, TA = 25°C to 125°C – ±30 – mV
VOE(TOP)LT IP = 0 A, TA = –40°C to 25°C – ±35 – mV
Total Output Error3ETOT IP =±25 A, TA = –40°C to 125°C – ±4 – %
1See Characteristic Performance Data for parameter distributions over temperature.
2±3 sigma noise voltage.
3Percentage of IP, with IP = ±25 A.
x25A PERFORMANCE CHARACTERISTICS for E TEMPERATURE RANGE TA = 25°C and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range IP–25 – 25 A
Sensitivity Sens
Over full range of IP– 55 – mV/A
Full scale of IP applied for 5 ms, TA = –40°C to 25°C – 55 – mV/A
Full scale of IP applied for 5 ms, TA = 25°C to 85°C – 55 – mV/A
Noise2VNOISE TA = 25 °C, no external low pass filter on VIOUT – 8 – mV
Electrical Offset Voltage
VOE(TA) IP = 0 A, TA = 25°C – ±5 – mV
VOE(TOP)HT IP = 0 A, TA = 25°C to 85°C – ±30 – mV
VOE(TOP)LT IP = 0 A, TA = –40°C to 25°C – ±35 – mV
Total Output Error3ETOT IP =±25 A, TA = –40°C to 85°C – ±4 – %
1See Characteristic Performance Data for parameter distributions over temperature.
2±3 sigma noise voltage.
3Percentage of IP, with IP = ±25 A.
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
7
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic Performance Data
Data taken using the ACS711KLC-12A, VCC = 3.3 V
Accuracy Data
Mean
Typical Maximum Limit Typical Minimum Limit
80
60
40
20
0
-20
-40
-60
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
114
113
112
111
110
109
108
107
101.5
101.0
100.5
100.0
99.5
99.0
98.5
VOE (mV)ELIN (%)
Sens (mV/A)ESYM (%)
T
A
(°C)T
A
(°C)
T
A
(°C)T
A
(°C)
8
6
4
2
0
-2
-4
-6
ETOT (%)
T
A
(°C)
IFAULT(A)
T
A
(°C)
16
14
12
10
8
6
4
2
0
–60 60 14080 100 120–40 40–20 200
Electrical Offset Voltage versus Ambient Temperature
Nonlinearity versus Ambient Temperature
Sensitivity versus Ambient Temperature
Symmetry versus Ambient Temperature
Total Output Error versus Ambient Temperature Fault Operating Point versus Ambient Temperature
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
8
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic Performance Data
Data taken using the ACS711KLC-25A, VCC = 3.3 V
Accuracy Data
Mean
Typical Maximum Limit Typical Minimum Limit
40
30
20
10
0
-10
-20
-30
-40
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
–60 60 14080 100 120–40 40–20 200
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
57.0
56.5
56.0
55.5
55.0
54.5
54.0
53.5
100.8
100.6
100.4
100.2
100.0
99.8
99.6
99.4
99.2
99.0
VOE (mV)ELIN (%)
Sens (mV/A)ESYM (%)
T
A
(°C)T
A
(°C)
T
A
(°C)T
A
(°C)
5
4
3
2
1
0
-1
-2
-3
-4
ETOT (%)
T
A
(°C)
IFAULT (A)
T
A
(°C)
30
25
20
15
10
5
0
–60 60 14080 100 120–40 40–20 200
Electrical Offset Voltage versus Ambient Temperature
Nonlinearity versus Ambient Temperature
Sensitivity versus Ambient Temperature
Symmetry versus Ambient Temperature
Total Output Error versus Ambient Temperature Fault Operating Point versus Ambient Temperature
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
9
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic Performance Data
Data taken using the ACS711KLC-25A
Timing Data
IP (10 A/div.)
3.47 μs
VIOUT (0.5 V/div.)
t (2 μs/div.)
IP (10 A/div.) IP (10 A/div.)
VIOUT (0.5 V/div.)
Fault (2 V/div.)
t (2 μs/div.) t (2 μs/div.)
IP (10 A/div.)
VIOUT (0.5 V/div.)
t (2 μs/div.)
4.62 μs
1.28 μs
1.24 μs
Response Time
Propagation Delay Time
Fault Response
Rise Time
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
10
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Sensitivity (Sens). The change in sensor output in response to a
1 A change through the primary conductor. The sensitivity is the
product of the magnetic circuit sensitivity (G / A) and the linear
IC amplifier gain (mV/G). The linear IC amplifier gain is pro-
grammed at the factory to optimize the sensitivity (mV/A) for the
full-scale current of the device.
Noise (VNOISE). The product of the linear IC amplifier gain (mV)
and the noise floor for the Allegro Hall effect linear IC. The noise
floor is derived from the thermal and shot noise observed in Hall
elements. Dividing the noise (mV) by the sensitivity (mV/A) pro-
vides the smallest current that the device is able to resolve.
Linearity (ELIN). The degree to which the voltage output from
the sensor varies in direct proportion to the primary current
through its full-scale amplitude. Nonlinearity in the output can be
attributed to the saturation of the flux concentrator approaching
the full-scale current. The following equation is used to derive the
linearity:
where VIOUT_full-scale amperes = the output voltage (V) when the
sensed current approximates full-scale ±IP .
Symmetry (ESYM). The degree to which the absolute voltage
output from the sensor varies in proportion to either a positive
or negative full-scale primary current. The following formula is
used to derive symmetry:
Quiescent output voltage (VIOUT(Q)). The output of the sensor
when the primary current is zero. For a unipolar supply voltage,
it nominally remains at VCC ⁄ 2. Thus, 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.
Electrical offset voltage (VOE). The deviation of the device out-
put from its ideal quiescent value of VCC / 2 due to nonmagnetic
causes. To convert this voltage to amperes, divide by the device
sensitivity, Sens.
Accuracy (ETOT). The accuracy represents the maximum devia-
tion of the actual output from its ideal value. This is also known
as the total ouput error. The accuracy is illustrated graphically in
the output voltage versus current chart below.
Ratiometry. The ratiometric feature means that its 0 A output,
VIOUT(Q), (nominally equal to VCC/2) and sensitivity, Sens, are
proportional to its supply voltage, VCC
. The following formula is
used to derive the ratiometric change in 0 A output voltage,
VIOUT(Q)RAT (%).
The ratiometric change in sensitivity, SensRAT (%), is defined as:
Definitions of Accuracy Characteristics
100 1–
[{
[{
VIOUT_full-scale amperes – VIOUT(Q)
Δ gain × % sat ( )
2 (VIOUT_half-scale amperes – VIOUT(Q) )
100
VIOUT_+ full-scale amperes – VIOUT(Q)
VIOUT(Q) – VIOUT_–full-scale amperes
100
VIOUT(Q)VCC / VIOUT(Q)3.3V
VCC / 3.3 V
100
SensVCC / Sens3.3V
VCC / 3.3 V
Output Voltage versus Sensed Current
Accuracy at 0 A and at Full-Scale Current
Increasing VIOUT
(V)
+IP (A)
Accuracy
Accuracy
Accuracy
25°C Only
Accuracy
25°C Only
Accuracy
25°C Only
Accuracy
0 A
vrOe $Temperature
Average
VIOUT
–IP (A)
vrOe $Temperature
vrOe $Temp erature
Decreasing VIOUT
(V)
IP(min)
IP(max)
Full Scale
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
11
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Definitions of Dynamic Response Characteristics
Primary Current
Transducer Output
90
10
0
I (%)
Rise Time, tr
t
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. The rise time to a step response is used to
derive the bandwidth of the current sensor, in which ƒ(–3 dB) =
0.35 / tr. Both tr and tRESPONSE are detrimentally affected by eddy
current losses observed in the conductive IC ground plane.
Power -On T ime (tPO). When the supply is ramped to its operat-
ing voltage, the device requires a finite time to power its internal
components before responding to an input magnetic field.
Power-On Time, tPO , 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 operating voltage, VCC(min), as shown in the
chart at right.
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
12
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package LC, 8-pin SOIC
C
SEATING
PLANE
1.27 BSC
GAUGE PLANE
SEATING PLANE
ATerminal #1 mark area
B
Reference land pattern layout (reference IPC7351
SOIC127P600X175-8M); all pads a minimum of 0.20 mm from all
adjacent pads; adjust as necessary to meet application process
requirements and PCB layout tolerances
B
D
C
21
8
Branding scale and appearance at supplier discretion
C
SEATING
PLANE
C0.10
8X
0.25 BSC
1.04 REF
1.75 MAX
For Reference Only; not for tooling use (reference MS-012AA)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
4.90 ±0.10
3.90 ±0.10 6.00 ±0.20
0.51
0.31 0.25
0.10
0.25
0.17
1.27
0.40
8°
0°
N = Device part number
T = Device temperature range
P = Package Designator
A = Amperage
L = Lot number
Belly Brand = Country of Origin
NNNNNNN
LLLLL
1
TPP-AAA
A
Standard Branding Reference View
21
8
PCB Layout Reference View
C
0.65 1.27
5.60
1.75
Branded Face
Hall Ef fect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
13
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Revision History
Revision Revision Date Description of Revision
Rev. 3 January 5, 2012 Update description
Copyright ©2008-2012, Allegro MicroSystems, Inc.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec i fi ca tions as may be required to per-
mit improvements in the per for mance, 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 life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The in for ma tion in clud ed herein is believed to be ac cu rate and reliable. How ev er, Allegro MicroSystems, Inc. assumes no re spon si bil i ty for its use;
nor for any in fringe ment of patents or other rights of third parties which may result from its use.
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