ACS750SCA-100 Allegro Microsystems Inc, ACS750SCA-100 Datasheet

SENSOR CURRENT 100A 5V BI 5-CA

ACS750SCA-100

Manufacturer Part Number
ACS750SCA-100
Description
SENSOR CURRENT 100A 5V BI 5-CA
Manufacturer
Allegro Microsystems Inc
Series
-r
Datasheet

Specifications of ACS750SCA-100

Current - Sensing
±100A
Accuracy
±1.5%
Sensitivity
18.75 ~ 20.75 mV/A
Current - Supply
7mA
Sensor Type
Hall Effect
Voltage - Supply
4.5 V ~ 5.5 V
Output
2.5V
Frequency
13kHz
Response Time
27µs
Polarization
Bidirectional
Operating Temperature
-20°C ~ 85°C
Package / Case
5-CA Formed Leads
Lead Free Status / Rohs Status
Contains lead / RoHS non-compliant
Features and Benefits
▪ Monolithic Hall IC for high reliability
▪ Single +5 V supply
▪ 3 kV
▪ 13 kHz bandwidth
▪ Automotive temperature range
▪ End-of-line factory-trimmed for gain and offset
▪ Ultra-low power loss: 130 μΩ internal conductor
▪ Ratiometric output from supply voltage
▪ Extremely stable output offset voltage
▪ Small package size, with easy mounting capability
▪ Output proportional to AC and DC currents
Package: 5 pin package (leadform PFF)
ACS750100-DS Rev. 11
pins 1/2/3 for up to 1 minute
resistance
RMS
isolation voltage between terminals 4/5 and
with High Voltage Isolation and a Low-Resistance Current Conductor
Fully Integrated, Hall Effect-Based Linear Current Sensor IC
I
P
Application 1. The ACS750 outputs an analog signal, V
that varies linearly with the uni- or bi-directional AC or DC
primary sampled current, I
is recommended for noise management, with values that
depend on the application.
4
5
IP+
IP–
ACS750
Typical Application
VIOUT
GND
VCC
1
2
3
P
, within the range specified. C
Description
The Allegro ACS75x family of current sensor ICs 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
circuit with a copper conduction path located near the die.
Applied current flowing through this copper conduction path
generates a magnetic field which the Hall IC converts 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
increasing current flows through the primary copper conduction
path (from terminal 4 to terminal 5), which is the path used for
current sampling. The internal resistance of this conductive path
is typically 130 μΩ, providing low power loss. The thickness
of the copper conductor allows survival of the device at up to
Continued on the next page…
R
F
C
F
C
0.1 µF
BYP
+5 V
OUT
V
ACS750xCA-100
F
OUT
.
CC
/ 2) when an

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ACS750SCA-100 Summary of contents

Page 1

... The internal resistance of this conductive path is typically 130 μΩ, providing low power loss. The thickness of the copper conductor allows survival of the device Continued on the next page… ...

Page 2

... Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Status date change May 4, 2009. Deadline for receipt of LAST TIME BUY orders is November 4, 2009 ...

Page 3

... ACS750xCA-100 with High Voltage Isolation and a Low-Resistance Current Conductor IP+ IP– Terminal List Table Number Fully Integrated, Hall Effect-Based Linear Current Sensor IC Functional Block Diagram VCC Voltage Regulator To all subcircuits Amp Temperature Gain Coefficient Trim Control GND Pin-out Diagram IP VIOUT 2 GND ...

Page 4

... ACS750xCA-100 with High Voltage Isolation and a Low-Resistance Current Conductor ELECTRICAL CHARACTERISTICS, Characteristic Primary Sampled Current Supply Voltage Supply Current Output Resistance Output Capacitance Load Output Resistive Load Primary Conductor Resistance Isolation Voltage PERFORMANCE CHARACTERISTICS, -20°C to +85°C, V Propagation time Response time ...

Page 5

... This is also known as the total output error. The accuracy is illustrated graphically in the output voltage versus current chart on the following page. Accuracy is divided into four areas:  25°C. Accuracy at the zero current flow at 25°C, with- out the effects of temperature  ...

Page 6

... Response time (t ). The time interval between a) when RESPONSE the primary current signal reaches 90% of its final value, and b) when the device reaches 90% of its output corresponding to the applied current. Rise time (t ). The time interval between a) when the device ...

Page 7

... ACS750xCA-100 with High Voltage Isolation and a Low-Resistance Current Conductor Fully Integrated, Hall Effect-Based Linear Current Sensor IC Step Response Excitation Signal P Output (mV) Excitation Signal 7 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ...

Page 8

... Creepage distance, current terminals to signal pins: 7.25 mm Clearance distance, current terminals to signal pins: 7.25 mm Package mass: 4.63 g typical ACS Allegro Current Sensor 750 Device family number Operating ambient temperature range code ...

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