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ACS752SCA-100_05 Datasheet

  • ACS752SCA-100_05

  • Current Sensor

  • 12頁

  • ALLEGRO   ALLEGRO

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Current Sensor: ACS752SCA-100
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 碌鈩? providing low power loss. The thickness
of the copper conductor allows survival of the device at up to 5脳 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.
4
5
1
2
3
Pin 1: V
CC
Pin 2: Gnd
Pin 3: Output
Terminal 4: I
p+
Terminal 5: I
p-
ABSOLUTE MAXIMUM RATINGS
Operating Temperature
S .....................................................
鈥?0 to +85潞C
Supply Voltage, Vcc...........................................
16 V
Reverse Supply Voltage, V
RCC
........................ 鈥?6
V
Output Voltage ...................................................
16 V
Reverse Output Voltage, V
ROUT
...................... 鈥?.1
V
Output Current Source .....................................
3 mA
Output Current Sink........................................10
mA
Maximum Storage Temperature...........鈥?5
to 170擄C
Maximum Junction Temperature ....................
165擄C
Features and Bene鏗乼s
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Monolithic Hall IC for high reliability
Single +5 V supply
3 kV
RMS
isolation voltage between terminals 4/5 and pins 1/2/3
50 kHz bandwidth
Lead-free
End-of-line factory-trimmed for gain and offset
Ultra-low power loss: 130 碌鈩?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
Always order by complete part number:
ACS752SCA-100
Applications
T脺V America
Certi鏗乧ate Number:
U8V 04 11 54214 002
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Industrial systems
Motor control
Power distribution
Battery power systems
Electric vehicles
ACS752100-DS Rev. 6
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

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