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ACS704ELC-005 Datasheet

  • ACS704ELC-005

  • Fully Integrated, Hall Effect-Based Linear Current Sensor wi...

  • 489.38KB

  • 19頁

  • ALLEGRO   ALLEGRO

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ACS704ELC-005
Fully Integrated, Hall Effect-Based Linear Current Sensor
with Voltage Isolation and a Low-Resistance Current Conductor
Package LC
The Allegro ACS704 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, switched-mode power supplies, and overcurrent fault protection.
8
7
6
5
1
2
3
4
Pin 1:
Pin 2:
Pin 3:
Pin 4:
IP+
IP+
IP鈥?/div>
IP鈥?/div>
Pin 5: GND
Pin 6: VOUT
Pin 7: VOUT
Pin 8: VCC
The device consists of a precision, low-offset 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. 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 pins 1 and 2, to pins 3
and 4), which is the path used for current sensing. The internal resistance of this
conductive path is typically 1.5 m惟, 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 5 through 8). This allows the ACS704 family of sensors to be
used in applications requiring electrical isolation without the use of opto-isolators
or other costly isolation techniques.
The ACS704 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 flip-chip uses high-
temperature Pb-based solder balls, currently exempt from RoHS and WEEE. The
device is fully calibrated prior to shipment from the factory.
Nominal Operating Temperature, T
A
Range E............................................
鈥?0 to 85潞C
Overcurrent Transient Tolerance*, I
P
................
60 A
*
100
total pulses, 250 ms duration each, applied at a rate of
1 pulse every 100 seconds.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
..........................................
16 V
Reverse Supply Voltage, V
RCC
........................ 鈥?6
V
Output Voltage, V
OUT
........................................
16 V
Reverse Output Voltage, V
ROUT
...................... 鈥?.1
V
Output Current Source, I
OUT(Source)
.................
3 mA
Output Current Sink, I
OUT(Sink)
.......................10
mA
Operating Temperature,
Maximum Junction, T
J(max)
.......................
165擄C
Storage Temperature, T
S
......................
鈥?5 to 170擄C
Features and Benefits
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Small footprint, low-profile SOIC8 package
1.5 m惟 internal conductor resistance
Excellent replacement for sense resistors
800 V
RMS
minimum isolation voltage beween pins 1-4 and 5-8
4.5 to 5.5 V, single supply operation
50 kHz bandwidth
133 mV/A output sensitivity and 15 A dynamic range
Output voltage proportional to ac and dc currents
Factory-trimmed for accuracy
Extremely stable output offset voltage
Near-zero magnetic hysteresis
Ratiometric output from supply voltage
T脺V America
Certificate Number:
U8V 04 12 54214 005
Use the following complete part number when ordering:
Part Number
ACS704ELC-005
Package
SOIC8 surface mount
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ACS704ELC005-DS, Rev. 5

ACS704ELC-005 產(chǎn)品屬性

  • 3,000

  • 傳感器，轉(zhuǎn)換器

  • 電流

  • -

  • ±5A

  • ±1%

  • 133mV/A

  • 8mA

  • 霍爾效應(yīng)

  • 4.5 V ~ 5.5 V

  • 2.5V

  • 50kHz

  • 8µs

  • 雙向

  • -40°C ~ 85°C

  • 8-SOIC（0.154"，3.90mm 寬）

  • 帶卷 (TR)

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