Current Sensor: ACS750xCA-100
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ACS750100-DS Rev. 6
AB SO LUTE MAX I MUM RAT INGS
Operating Temperature
S .....................................................20 to +85C
E .....................................................40 to +85C
Supply Voltage, Vcc...........................................16 V
Reverse Supply Voltage, V
RCC
........................16 V
Output Voltage ...................................................16 V
Reverse Output Voltage, V
ROUT
...................... 0.1 V
Output Current Source ..................................... 3 mA
Output Current Sink........................................10 mA
Maximum Storage Temperature...........65 to 170C
Maximum Junction Temperature .................... 165C
1 2
3
4
5
Pin 1: V
CC
Pin 2: Gnd
Pin 3: Output
Terminal 4: I
p+
Terminal 5: I
p-
Features and Benefi ts
Monolithic Hall IC for high reliability
Single +5 V supply
3
kV
RMS
isolation voltage between terminals 4/5 and pins 1/2/3
Lead-free
Automotive temperature range available
End-of-line factory-trimmed for gain and offset
Ultra-low power loss: 130 internal conductor resistance
Ratiometric output from supply voltage
Extremely stable output offset voltage
Small package size, with easy mounting capability
Output proportional to ac and dc currents
Applications
Industrial
systems
Motor
control
Power
conversion
Battery
monitors
Automotive
systems
Always order by complete part number:
ACS750SCA-100
ACS750ECA-100
TV America
Certifi cate Number:
U8V 04 11 54214 002
The Allegro ACS75x family of current sensors provides economical and
precise solutions for current sensing in industrial, automotive, commercial, and
communications systems. The device package allows for easy implementation
by the customer. Typical applications include motor control, load detection and
management, power supplies, and overcurrent fault protection.
The device consists of a precision, low-offset linear Hall sensor circuit with a
copper conduction path located near 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. A precise, proportional voltage is provided by the low-offset, chopper-
stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.
The output of the device has a positive slope (>V
CC
/ 2) when an increasing
current flows through the primary copper conduction path (from terminal 4 to
terminal 5), which is the path used for current sensing. The internal resistance of
this conductive path is typically 130 , providing low power loss. The thickness
of the copper conductor allows survival of the device at up to 5 overcurrent
conditions. The terminals of the conductive path are electrically isolated from the
sensor leads (pins 1 through 3). This allows the ACS75x family of sensors 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. The ACS75x
family is lead-free. All leads are coated with 100% matte tin, and there is no lead
inside the package. The heavy gauge leadframe is made of oxygen-free copper.
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ACS750100-DS Rev. 6
Current Sensor: ACS750xCA-100
ELECTRICAL CHARACTERISTICS,
over temperature unless otherwise stated
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Primary Sensed Current
I
P
100
100
A
Supply Voltage
V
CC
4.5
5.0
5.5
V
Supply Current
I
CC
V
CC
= 5.0 V, output open
7
10
mA
Output Resistance
R
OUT
I
OUT
= 1.2 mA
1
2
Output Capacitance Load
C
LOAD
VOUT to GND
10
nF
Output Resistive Load
R
LOAD
VOUT to GND
4.7
k
Primary Conductor Resistance
R
PRIMARY
I
P
= 100A, T
A
= +25C
130
Isolation Voltage
V
ISO
Pins 1-3 and 4-5, 60 Hz, 1 minute
3.0
kV
PERFORMANCE CHARACTERISTICS, -20C to +85C, V
CC
= 5 V unless otherwise specifi ed
Propagation time
t
PROP
I
P
= 50 A, T
A
= +25C
4
s
Response time
t
RESPONSE
I
P
= 50 A, T
A
= +25C
27
s
Rise time
t
r
I
P
= 50 A, T
A
= +25C
26
s
Frequency Bandwidth
f
3 dB, T
A
= 25C
13
kHz
Sensitivity
Sens
Over full range of I
P
, T
A
= 25C
18.75
19.75
20.75
mV/A
Over full range of I
P
17.5
21.5
mV/A
Noise
V
NOISE
Peak-to-peak, T
A
= 25C
External fi lter BW = 24 kHz
7
mV
Nonlinearity
E
LIN
Over full range of I
P
5
%
Symmetry
E
SYM
Over full range of I
P
97
100
103
%
Zero Current Output Voltage
V
OUT(Q)
I = 0 A, T
A
= 25C
V
CC
/ 2
V
Electrical Offset Voltage
(Magnetic error not included)
V
OE
I = 0 A, T
A
= 25C
40
40
mV
I = 0 A
50
50
mV
Magnetic Offset Error
I
ERROM
I = 0 A, after excursion of 100 A
0.3
0.8
A
Total Output Error
(Including all offsets)
E
TOT
Over full range of I
P
, T
A
= 25C
1.5
%
Over full range of I
P
13
%
PERFORMANCE CHARACTERISTICS, -40C to +85C, V
CC
= 5 V unless otherwise specifi ed
Propagation time
t
PROP
I
P
= 50 A, T
A
= +25C
4
s
Response time
t
RESPONSE
I
P
= 50 A, T
A
= +25C
27
s
Rise time
t
r
I
P
= 50 A, T
A
= +25C
26
s
Frequency Bandwidth
f
3 dB, T
A
= 25C
13
kHz
Sensitivity
Sens
Over full range of I
P
, T
A
= 25C
18.75
19.75
20.75
mV/A
Over full range of I
P
17.5
21.5
mV/A
Noise
V
NOISE
Peak-to-peak; T = +25C
External fi lter BW = 40 kHz
7
mV
Nonlinearity
E
LIN
Over full range of I
P
5
%
Symmetry
E
SYM
Over full range of I
P
97
100
103
%
Zero Current Output Voltage
V
OUT(Q)
I = 0 A
V
CC
/ 2
V
Electrical Offset Voltage
(Magnetic error not included)
V
OE
I = 0 A, T
A
= 25C
40
40
mV
I = 0 A
60
60
mV
Magnetic Offset Error
I
ERROM
I = 0 A, after excursion of 100 A
0.3
0.8
A
Total Output Error
(Including all offsets)
E
TOT
Over full range of I
P
, T
A
= 25C
1.5
%
Over full range of I
P
15
%
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ACS750100-DS Rev. 6
Current Sensor: ACS750xCA-100
Magnetic Offset
Vcc = 5 V
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-50
-25
0
25
50
75
100
Temperature ( C)
M
a
gnetic Of
fs
et (A)
I = 0 A, after excursion to 100 A
0 Ampere Accuracy Error
Vcc = 5 V
Without Offset
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-50
-25
0
25
50
75
100
0 Ampere Acc
u
racy
(A)
Temperature ( C)
Typical Performance Characteristics
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