Current Sensor: ACS754xCB-130
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
5
4
3
2
Pin 1: VCC
Pin 2: GND
Pin 3: VOUT
Terminal 4: IP+
Terminal 5: IP–
The Allegro ACS754 family of current sensors provides economical and precise
solutions for current sensing in industrial, commercial, and communications
systems. The device package allows easy implementation by the customer. Typical
applications include: motor control, load detection and management, power distri-
bution, and overcurrent fault protection.
The sensor consists of a precision linear Hall IC, which is optimized to an internal
magnetic circuit to increase device sensitivity. The combination of a precisely
controlled self-aligning assembly process (patents pending), and the factory-pro-
grammed precision of the linear Hall sensor, result in high-level performance and
product uniformity.
The primary conductor used for current sensing (terminals 4 and 5) is designed
for extremely low power loss. These power terminals also are electrically isolated
from the sensor leads (pins 1, 2, and 3). This allows the ACS754 family of sensors
to be used in applications requiring electrical isolation, without using optoisolators
or other costly isolation techniques.
The output of this device has a positive slope (>V
CC
⁄ 2) when an increasing cur-
rent  ows from terminal 4 to terminal 5.
The ACS754 family is provided in
lead-free packages (leadframe coating 100%
matte tin)
.
5
4
3
2
2
1
Package CB-PSF
5
5
4
3
3
2
2
Package CB-PSS
Features and Bene ts
•
Monolithic Hall IC for high reliability
•
Single +5 V supply
•
High isolation voltage
•
Automotive temperature range
•
End-of-line factory-trimmed for gain and offset
•
Ultra-low power loss: low resistance of primary conductor
•
Ratiometric output from supply voltage
•
Low thermal drift of offset voltage
•
On-chip transient protection
•
Small package size, with easy mounting capability
A
B SO LUTE MAX I MUM RAT INGS
Supply Voltage, V
CC
..........................................
16 V
Output Voltage, V
OUT
........................................
16 V
Output Current Source, I
OUT(Source)
.................
3 mA
Output Current Sink, I
OUT(Sink)
.......................
10 mA
Operating Temperature,
Ambient, T
A
Ambient, TA
Ambient, T
, L range
.....................
–40 to 150ºC
Ambient, T
A
Ambient, TA
Ambient, T
, S range
.......................
–20 to 85ºC
Maximum Junction, T
J(max)
.............................
165°C
Maximum Storage Temperature, T
S
...............
170°C
Use the following complete part numbers when ordering:
Part Number
Signal Pins
Signal Pins
Terminals
Ambient
ACS754LCB-130-PFF
Formed
Formed
–40 to 150°C
ACS754LCB-130-PSF
Formed
Straight
ACS754LCB-130-PSS
Straight
Straight
ACS754SCB-130-PFF
Formed
Formed
–20 to 85°C
ACS754SCB-130-PSF
Formed
Straight
ACS754SCB-130-PSS
Straight
Straight
Straight
Straight
Package CB-PFF
Package CB-PFF
Applications
•
Automotive systems
•
Industrial systems
•
Motor control
•
Servo systems
•
Power conversion
•
Battery monitors
TÜV America
Certi cate Number:
U8V 04 11 54214 001
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
Amp Out
VCC
+5V
Pin 1
Pin 3
VOUT
GND
Pin 2
Filter
Dynamic Offset
Cancellation
IP–
Terminal 5
IP+
Terminal 4
0.1 µF
Functional Block Diagram
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Primary Sensed Current
I
P
–130
–
130
A
Supply Voltage
V
CC
4.5
5.0
5.5
V
Supply Current
I
CC
V
cc
= 5.0 V, output open
6.5
8
10
mA
Output Resistance
R
OUT
I
OUT
= 1.2 mA
–
1
2
Ω
Primary Conductor Resistance
R
PRIMARY
I
P
= ±100A; T
A
= ±100A; TA
= ±100A; T
= 25°C
A = 25°C
A
–
100
–
μΩ
Isolation Voltage
V
ISO
Pins 1-3 and 4-5; 60 Hz, 1 minute
3.0
–
–
kV
PERFORMANCE CHARACTERISTICS, -20°C to +85°C
, V
CC
= 5 V unless otherwise speci ed
Propagation time
t
PROP
I
P
= ±50 A, T = 25°C
–
4
–
μs
Response time
t
RESPONSE
I
P
= ±50 A, T = 25°C
–
11
–
μs
Rise time
t
r
I
P
= ±50 A, T = 25°C
–
10
–
μs
Frequency Bandwidth
f
–3 dB , T = 25°C
–
35
–
kHz
Sensitivity
Sens
±I
P
, T = 25°C
–
15
–
mV/A
±I
P
14.2
–
15.8
mV/A
Noise
V
NOISE
Peak-to-peak, T = 25°C,
no external  lter
–
40
–
mV
Nonlinearity
E
LIN
±I
P
–
–
±0.8
%
Symmetry
E
SYM
±I
P
98
100
102
%
Zero Current Output Voltage
V
OUT(Q)
I = 0 A, T = 25°C
–
2.5
–
V
Electrical Offset Voltage
(Magnetic error not included)
V
OE
I = 0 A, T = 25°C
–10
–
10
mV
I = 0 A
–20
–
20
mV
Magnetic Offset Error
V
OM
I = 0 A, after excursion of 130 A
–
±0.1
±0.30
A
Total Output Error
(Including all offsets)
E
TOT
±I
P
, T = 25°C
–
±1.0
–
%
±I
P
–
–
±5.1
%
PERFORMANCE CHARACTERISTICS, -40°C to +150°C
, V
CC
= 5 V unless otherwise speci ed
Propagation time
t
PROP
I
P
= ±50 A, T = 25°C
–
4
–
μs
Response time
t
RESPONSE
I
P
= ±50 A, T = 25°C
–
11
–
μs
Rise time
t
r
I
P
= ±50 A, T = 25°C
–
10
–
μs
Frequency Bandwidth
f
–3 dB , T = 25°C
–
35
–
kHz
Sensitivity
Sens
±I
P
, T = 25°C
–
15
–
mV/A
±I
P
13.8
–
16.2
mV/A
Noise
V
NOISE
Peak-to-peak, T = 25°C,
no external  lter
–
40
–
mV
Nonlinearity
E
LIN
±I
P
–
–
±1.5
%
Symmetry
E
SYM
±I
P
98
100
102
%
Zero Current Output Voltage
V
OUT(Q)
I = 0 A, T = 25°C
–
2.5
–
V
Electrical Offset Voltage
(Magnetic error not included)
V
OE
I = 0 A, T = 25°C
–10
–
10
mV
I = 0 A
–35
–
35
mV
Magnetic Offset Error
V
OM
I = 0 A, after excursion of 130 A
–
±0.1
±0.40
A
Total Output Error
(Including all offsets)
E
TOT
±I
P
, T = 25°C
–
±1.0
–
%
±I
P
–
–
±8.0
%
ELECTRICAL CHARACTERISTICS,
over operating ambient temperature range unless otherwise stated
4
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
100 1–
[{
[{
Vout_full-scale amperes –VOUT(Q)
gain % sat ( )
2 (Vout_half-scale amperes –VOUT(Q) )
100
[
[
Vout_+full-scale amperes –VOUT(Q)
VOUT(Q) –Vout_–full-scale amperes
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 ampli er gain (mV/G). The linear IC ampli er gain is trimmed at the
factory to optimize the sensitivity (mV/A) for the full-scale current of the device.
Noise (V
NOISE
):
The product of the linear IC ampli er gain (mV/G) and the noise  oor for the Allegro Hall effect linear IC (≈1 G).
The noise  oor is derived from the thermal and shot noise observed in Hall elements. Dividing the noise (mV) by the sensitivity (mV/
A) provides the smallest current that the device is able to resolve.
Linearity (E
LIN
):
The degree to which the voltage output from the sensor varies in direct proportion to the primary current through
its full-scale amplitude. Linearity reveals the maximum deviation from the ideal transfer curve for this transducer. Nonlinearity in the
output can be attributed to the gain variation across temperature and saturation of the  ux concentrator approaching the full-scale cur-
rent. The following equation is used to derive the linearity:
De nitions of Accuracy Characteristics
where
∆ gain = the gain variation as a function of temperature changes from 25ºC,
% sat = the percentage of saturation of the  ux concentrator, which becomes signi cant as the current
being sensed approaches full-scale ±I
P
, and
V
out_full-scale amperes
V
out_full-scale amperes
V
= the output voltage (V) when the sensed current approximates full-scale ±I
P
.
Symmetry (E
SYM
):
The degree to which the absolute voltage output from the sensor varies in proportion to either a positive or nega-
tive full-scale primary current. The following equation is used to derive symmetry:
Quiescent output voltage (V
OUT(Q)
):
The output of the sensor when the primary current is zero. For a unipolar supply voltage, it
nominally remains at V
CC
⁄ 2. Thus, V
CC ⁄ 2. Thus, V
CC
CC
= 5 V translates into V
OUT(Q)
= 2.5 V. Variation in V
OUT(Q)
can be attributed to the resolution
of the Allegro linear IC quiescent voltage trim, magnetic hysteresis, and thermal drift.
Electrical offset voltage (V
OE
):
The deviation of the device output from its ideal quiescent value of V
CC
⁄ 2 due to nonmagnetic causes.
CC ⁄ 2 due to nonmagnetic causes.
CC
Magnetic offset error (V
OM
):
The magnetic offset is due to the residual magnetism (remnant  eld) 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 material used as a  ux concentrator. The larger magnetic
offsets are observed at the lower operating temperatures.
Accuracy (E
TOT
):
The accuracy represents the maximum deviation 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 on the following page.
Accuracy is divided into four areas:
•
0 A at 25°C:
Accuracy of sensing zero current  ow at 25°C, without the effects of temperature.
•
0 A over temperature:
Accuracy of sensing zero current  ow including temperature effects.
•
Full-scale current at 25°C:
Accuracy of sensing the full-scale current at 25°C, without the effects of temperature.
•
Full-scale current over Δ temperature:
Accuracy of sensing full-scale current  ow including temperature effects.
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
+IP(A)
Accuracy
Accuracy
Accuracy
25°C Only
Accuracy
25°C Only
Accuracy
25°C Only
Accuracy
0 A
v rO e �Temperature
Average
VOUT
–IP(A)
v rO e �Temperature
v rO e �Temperature
Increasing VOUT (V)
Decreasing VOUT (V)
–130 A 130 A
Full Scale
Output voltage vs. current, illustrating sensor accuracy at 0 A and at full-scale current
6
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
De nitions of Dynamic Response Characteristics
Propagation delay (t
PROP
):
The time required for the sensor output to re ect a change in the primary current
signal. Propagation delay is attributed to inductive loading within the linear IC package, as well as in the induc-
tive loop formed by the primary conductor geometry. Propagation delay can be considered as a  xed time offset
and may be compensated.
Response time (t
RESPONSE
):
The time interval between a) when the primary current signal reaches 90% of its
nal value, and b) when the sensor reaches 90% of its output corresponding to the applied current.
Rise time (t
r
):
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 / t
r
. Both t
r
and t
r and t
r
RESPONSE
are detrimentally affected by eddy current
losses observed in the conductive IC ground plane and, to varying degrees, in the ferrous  ux concentrator
within the current sensor package.
Primary Current
Transducer Output
90
0
I (%)
Propagation Time, tPROP
t
Primary Current
Transducer Output
90
0
I (%)
Response Time, tRESPONSE t
Primary Current
Transducer Output
90
10
0
I (%)
Rise Time, trt
7
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
Step Response, I
P
= 0 to 130 A, no external  lter
ACS754 Output (mV)
ACS754 Output (mV)
Excitation Signal
Excitation Signal
Standards and Physical Speci cations
Parameter
Speci cation
Flammability (package molding compound)
UL recognized to UL 94V-0
Fire and Electric Shock
UL60950-1:2003
EN60950-1:2001
CAN/CSA C22.2 No. 60950-1:2003
Creepage distance, current terminals to sensor pins
7.25 mm
Clearance distance, current terminals to sensor pins
7.25 mm
Package mass
4.63 g typical
8
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
Package CB-PFF
9
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2003, Allegro MicroSystems, Inc.
ACS754130-DS
Current Sensor: ACS754xCB-130
Package CB-PSF
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Package CB-PSS
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The products described herein are manufactured under one or
more of the
following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179;
5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130;
5,917,320; and other patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to time,
such de par tures from the detail spec i ca tions as may be required to permit im-
provements 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 products are not authorized for use as critical components in life-
support devices or sys tems without express written approval.
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.