900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Allegro

ACS71240 Datasheet Preview

ACS71240 Datasheet

Galvanically Isolated Current Sensor

No Preview Available !

ACS71240
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
FEATURES AND BENEFITS
• AEC-Q100 automotive qualified
• Differential Hall sensing rejects common-mode fields
• Integrated shield virtually eliminates capacitive coupling
from current conductor to die, greatly suppressing output
noise due to high dv/dt transients
• Industry-leading noise performance with greatly
improved bandwidth through proprietary amplifier and
filter design techniques
• High bandwidth 120 kHz analog output for faster
response times in control applications
• Patented integrated digital temperature compensation
circuitry allows for near closed-loop accuracy over
temperature in an open loop sensor
• Single supply operation with nonratiometric output at
3.3 and 5 V options
• Overcurrent FAULT available between 50% and 200% IP
with 1.5 µs (typ) response time
• Non-ratiometric output provides immunity to noisy supplies
• Small footprint QFN-12 with wettable flank and SOIC-8
suitable for space-constrained automotive applications
0.6 mΩ (QFN-12) or 1.2 mΩ (SOIC-8) primary
conductor resistance for low power loss and high inrush
current withstand capability
• UL certified package (SOIC-8 only) for voltage isolation
PACKAGES:
12-contact QFN with wettable flank
8-pin SOIC
3 mm × 3 mm × 0.75 mm
with internally fused path
(EXB package) Not to scale (LCB package)
DESCRIPTION
The Allegro™ ACS71240 current sensor IC is an economical
and precise solution for AC or DC current sensing in industrial,
automotive, commercial, and communications applications.
The device consists of a precise, low-offset linear Hall sensor
circuit with a copper conduction path located near the surface
of the die. Applied current flowing through this copper path
generates a magnetic field which is sensed by the integrated Hall
IC and converted into a proportional voltage. The resistance of
the integrated conductor is far less than typical sense resistors,
which reduces power loss and improves efficiency.
Rejection of external common-mode magnetic fields is
achieved through differential sensing, enabling high accuracy
in magnetically noisy environments. A precise voltage
proportional to the measured current is generated by the low-
offset, chopper-stabilized Hall front end.
Zero ampere output voltage and device sensitivity are
programmed at the Allegro factory to provide a high accuracy
solution across the full automotive temperature range.
The ACS71240 includes an integrated fault comparator for
simplified overcurrent detection. The ultrafast response time
provides the system with ample time to detect and protect
against short-circuit events.
TheACS71240 is provided in small, low-profile surface-mount
package options: QFN-12 with wettable flank and SOIC-8. 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.
SOIC-8 ONLY
TÜV America
Certificate Number:
U8V 14 11 54214 032
CB 14 11 54214 031
CB Certificate Number:
US-22334-A3-UL
IP+ VCC
IP+
VIOUT
IP
ACS71240
FAULT
IP–
IP– GND
VCC
CBYP
0.1 μF
RPU
CLOAD
ACS71240-DS, Rev. 7
MCO-0000621
Figure 1: Typical Application
April 20, 2020




Allegro

ACS71240 Datasheet Preview

ACS71240 Datasheet

Galvanically Isolated Current Sensor

No Preview Available !

ACS71240
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
SELECTION GUIDE
Part Number
ACS71240KEXBLT-010B3
ACS71240KEXBLT-010B3-115
ACS71240KEXBLT-030B3
ACS71240KEXBLT-030B3-167L
ACS71240KEXBLT-030B5
ACS71240KEXBLT-050U5
ACS71240LLCBTR-010B3
ACS71240LLCBTR-030B3
ACS71240LLCBTR-045B5
ACS71240LLCBTR-050U5
Supply
Voltage, VCC
(V)
3.3
3.3
3.3
3.3
5.0
5.0
3.3
3.3
5
5
Optimized
Accuracy
Range, IPR (A)
±10
±10
±30
±30
±30
50
±10
±30
±45
50
Sensitivity
(Typ)
(mV/A)
132
132
44
44
66
80
132
44
44.4
80
[1] Contact Allegro for additional packing options.
[2] See application section for more information regarding latched fault behavior.
Fault Trip
Level (A)
±10
±11.5
±30
±50, latched [2]
±30
50
±10
±30
±45
50
Operating Ambient
Temperature Range,
TA (°C)
–40 to 125
–40 to 150
Package
12-contact QFN with
wettable flank
(EXB)
8-pin SOIC with
internally fused path
(LCB)
Packing [1]
1500 pieces
per 7-inch reel
3000 pieces
per 13-inch reel
Naming Specification
ACS71240KEXBTR - 010B3 - 115
Custom Fault Level, IFAULT
115 = 115% IPR
[blank] = 100% IPR
Supply Operating Level, VCC
3 = 3.3 V
5 = 5.0 V
Current Polarity
B = Bidirectional
U = Unidirectional
Optimized Accuracy Range, IPR
Packing Option
LT = 1500 pieces per 7-inch reel (QFN-12 only)
TR = 3000 pieces per 13-inch reel (SOIC-8 only)
Package Type
EXB = QFN-12 Package with Wettable Flank
LCB = SOIC-8 Package
Operating Temperature Range, TA
K = –40°C to 125°C (QFN-12 only)
L = –40°C to 150°C (SOIC-8 only)
Allegro Current Sensor 5-digit part number
2
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com


Part Number ACS71240
Description Galvanically Isolated Current Sensor
Maker Allegro
PDF Download

ACS71240 Datasheet PDF






Similar Datasheet

1 ACS71240 Galvanically Isolated Current Sensor
Allegro





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy