ACS754SCB-050-PSS ALLEGRO [Allegro MicroSystems], ACS754SCB-050-PSS Datasheet

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ACS754SCB-050-PSS

Manufacturer Part Number
ACS754SCB-050-PSS
Description
Current Sensor
Manufacturer
ALLEGRO [Allegro MicroSystems]
Datasheet
ACS754050-DS, Rev. 3
Supply Voltage, V
Reverse Supply Voltage, V
Output Voltage, V
Reverse Output Voltage, V
Output Current Source, I
Output Current Sink, I
Operating Temperature,
Maximum Junction, T
Maximum Storage Temperature, T
Package CB-PFF
Package CB-PSF
Package CB-PSS
AB SO LUTE MAX I MUM RAT INGS
Ambient, T
Ambient, T
Pin 1: VCC
Pin 2: GND
Pin 3: VOUT
1
A
A
2
, L range ..................... –40 to 150ºC
, S range ....................... –20 to 85ºC
1
3
1
OUT
CC
2
2
3
.......................................... 16 V
TÜV America
Certifi cate Number:
U8V 04 11 54214 001
3
J(max)
........................................ 16 V
OUT(Sink)
OUT(Source)
ROUT
5
RCC
............................. 165°C
Current Sensor: ACS754xCB-050
5
5
Terminal 4: IP+
Terminal 5: IP–
........................ –16 V
.......................10 mA
...................... –0.1 V
4
S
................. 3 mA
4
.... –65 to 170°C
4
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 fl owing through
this copper conduction path generates a magnetic fi eld 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
current fl ows 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 100 µΩ, 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.
Features and Benefi ts
• Monolithic Hall IC for high reliability
• Single +5 V supply
• 3 kV
• 35 kHz bandwidth
• Automotive temperature range
• End-of-line factory-trimmed for gain and offset
• Ultra-low power loss: 100 µΩ 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
• Automotive systems
• Industrial systems
• Motor control
Use the following complete part numbers when ordering:
ACS754SCB-050-PSF
ACS754SCB-050-PSS
ACS754LCB-050-PFF
ACS754LCB-050-PSF
ACS754LCB-050-PSS
ACS754SCB-050-PFF
Part Number
RMS
isolation voltage between terminals 4/5 and pins 1/2/3
Signal Pins
Formed
Formed
Straight
Formed
Formed
Straight
• Servo systems
• Power conversion
• Battery monitors
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
CC
Terminals
Formed
Straight
Straight
Formed
Straight
Straight
/ 2) when an increasing
–40 to 150°C
–20 to 85°C
Ambient

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ACS754SCB-050-PSS Summary of contents

Page 1

... Motor control Use the following complete part numbers when ordering: Part Number Signal Pins ACS754LCB-050-PFF Formed ACS754LCB-050-PSF Formed ACS754LCB-050-PSS Straight ACS754SCB-050-PFF Formed ACS754SCB-050-PSF Formed ACS754SCB-050-PSS Straight / 2) when an increasing CC Terminals Ambient Formed Straight –40 to 150°C Straight Formed Straight –20 to 85°C Straight ...

Page 2

Current Sensor: ACS754xCB-050 IP– Terminal 5 IP+ Terminal 4 ACS754050-DS, Rev. 3 Functional Block Diagram VCC Pin 1 Voltage Regulator To all subcircuits Amp Out Temperature Gain Offset Coefficient Trim Control GND Pin VOUT Pin 3 0.1 ...

Page 3

Current Sensor: ACS754xCB-050 ELECTRICAL CHARACTERISTICS, Characteristic Primary Sensed Current Supply Voltage Supply Current Output Resistance Output Capacitance Load Output Resistive Load Primary Conductor Resistance PERFORMANCE CHARACTERISTICS, -20°C to +85°C, V Propagation time Response time Rise time Frequency Bandwidth Sensitivity Noise ...

Page 4

Current Sensor: ACS754xCB-050 Defi nitions of Accuracy Characteristics Sensitivity (Sens): The change in sensor output in response change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity ( and ...

Page 5

Current Sensor: ACS754xCB-050 Output voltage vs. current, illustrating sensor accuracy and at full-scale current O e ∆Temperature v r 25°C Only –50 A –I (A) P Accuracy 25°C Only Accuracy O e ∆Temperature v r ACS754050-DS, Rev. ...

Page 6

Current Sensor: ACS754xCB-050 Typical Percentage Error versus Ambient Temperature –2 –4 –6 –8 –10 -40 -20 ACS754050-DS, Rev Sigma Mean – 3 Sigma (° 125 150 ...

Page 7

Current Sensor: ACS754xCB-050 Defi nitions of Dynamic Response Characteristics Propagation delay (t ): The time required for the sensor output to refl ect a change in the primary current PROP signal. Propagation delay is attributed to inductive loading within the ...

Page 8

Current Sensor: ACS754xCB-050 Standards and Physical Specifi cations Parameter Flammability (package molding compound) Fire and Electric Shock Creepage distance, current terminals to sensor pins Clearance distance, current terminals to sensor pins Package mass Step Response, I ACS754050-DS, Rev. 3 Specifi ...

Page 9

Current Sensor: ACS754xCB-050 Device Branding Key (Two alternative styles are used) ACS754 TCB050 YYWWA ACS754 TCB050 L...L YYWW ACS754050-DS, Rev. 3 ACS Allegro Current Sensor 754 Device family number T Operating ambient temperature range code [ Package ...

Page 10

Current Sensor: ACS754xCB-050 ACS754050-DS, Rev. 3 Package CB-PFF 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 10 ...

Page 11

Current Sensor: ACS754xCB-050 Package CB-PSF The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending. Allegro MicroSystems, Inc. ...

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