ACS758LCB-050B-PFF-T Allegro Microsystems Inc, ACS758LCB-050B-PFF-T Datasheet

Hall Effect IC

ACS758LCB-050B-PFF-T

Manufacturer Part Number
ACS758LCB-050B-PFF-T
Description
Hall Effect IC
Manufacturer
Allegro Microsystems Inc
Series
ACS758r
Datasheet

Specifications of ACS758LCB-050B-PFF-T

Output Current
3mA
Bandwidth
120kHz
Supply Voltage Max
5.5V
Hall Effect Type
Linear
Operating Temperature Range
-40°C To +150°C
Supply Voltage Min
3V
Package / Case
5-PFF
Current - Sensing
±50A
Accuracy
±1%
Sensitivity
40mV/A
Current - Supply
10mA
Sensor Type
Hall Effect
Voltage - Supply
3 V ~ 5.5 V
Output
2.5V
Frequency
120kHz
Response Time
4µs
Polarization
Bidirectional
Operating Temperature
-40°C ~ 150°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Price
Part Number:
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ALLEGRO
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Features and Benefits
▪ Industry-leading noise performance through proprietary
▪ Integrated shield greatly reduces capacitive coupling from
▪ Total output error improvement through gain and offset
▪ Small package size, with easy mounting capability
▪ Monolithic Hall IC for high reliability
▪ Ultra-low power loss: 100 μΩ internal conductor resistance
▪ Galvanic isolation allows use in economical, high-side
▪ 3.0 to 5.5 V, single supply operation
Package: 5-pin package
ACS758-DS, Rev. 5
Continued on the next page…
amplifier and filter design techniques
current conductor to die due to high dV/dt signals, and
prevents offset drift in high-side, high voltage applications
trim over temperature
current sensing in high voltage systems
Additional leadforms available for qualifying volumes
Leadform
PSS
TÜV America
Certificate Number:
U8V 09 05 54214 021
Application 1. The ACS758 outputs an analog signal, V
varies linearly with the uni- or bi-directional AC or DC primary
sampled current, I
noise management, with values that depend on the application.
I
Leadform
P
Linear Current Sensor IC with 100 μΩ Current Conductor
Thermally Enhanced, Fully Integrated, Hall Effect-Based
PFF
4
5
Typical Application
IP+
IP–
ACS758
P
, within the range specified. C
VIOUT
GND
VCC
1
2
3
Description
The Allegro
economical and precise solutions for AC or DC current sensing.
Typical applications include motor control, load detection and
management, power supply and DC-to-DC converter control,
inverter control, and overcurrent fault detection.
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 output voltage is provided by the
low-offset, chopper-stabilized BiCMOS Hall IC, which is
programmed for accuracy at the factory.
High level immunity to current conductor dV/dt and stray
electric fields, offered by Allegro proprietary integrated shield
technology, guarantees low output voltage ripple and low offset
drift in high-side, high voltage applications.
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 100 μΩ typical, providing low power loss.
The thickness of the copper conductor allows survival of the
device at high overcurrent conditions. The terminals of the
Continued on the next page…
R
F
C
F
C
0.1 μF
BYP
®
+3.3 or 5 V
ACS758 family of current sensor ICs provides
F
is for optimal
V
OUT
OUT
, that
ACS758xCB
CC
/ 2) when an

Related parts for ACS758LCB-050B-PFF-T

ACS758LCB-050B-PFF-T Summary of contents

Page 1

Features and Benefits ▪ Industry-leading noise performance through proprietary amplifier and filter design techniques ▪ Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side, high voltage applications ...

Page 2

... Output voltage proportional currents ▪ Factory-trimmed for accuracy ▪ Extremely stable output offset voltage ▪ Nearly zero magnetic hysteresis Selection Guide Package 1 Part Number Terminals ACS758LCB-050B-PFF-T Formed ACS758LCB-050U-PFF-T Formed ACS758LCB-100B-PFF-T Formed ACS758LCB-100U-PFF-T Formed ACS758KCB-150B-PFF-T Formed ...

Page 3

ACS758xCB Absolute Maximum Ratings Characteristic Forward Supply Voltage Reverse Supply Voltage Working Voltage for Reinforced Isolation Working Voltage for Basic Isolation Forward Output Voltage Reverse Output Voltage Output Source Current Output Sink Current Nominal Operating Ambient Temperature Maximum Junction Storage ...

Page 4

ACS758xCB IP+ IP– Terminal List Table Number Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with Functional Block Diagram VCC To all subcircuits Amp Gain Gain Offset Temperature Coefficient Trim Control GND Pin-out ...

Page 5

ACS758xCB COMMON OPERATING CHARACTERISTICS Characteristic Symbol Supply Voltage 2 V Supply Current I CC Power-On Delay t POD 3 Rise Time t Propagation Delay Time 3 t PROP Response Time t RESPONSE Internal Bandwidth 4 BW Output Load Resistance R ...

Page 6

ACS758xCB X050B PERFORMANCE CHARACTERISTICS Characteristic Symbol Primary Sampled Current I P Sens TA Sensitivity Sens (TOP)HT Sens (TOP)LT Noise 2 V NOISE Nonlinearity E LIN V OE(TA) Electrical Offset Voltage 3 V OE(TOP)HT V OE(TOP)LT Magnetic Offset Error I ERROM ...

Page 7

ACS758xCB X100B PERFORMANCE CHARACTERISTICS Characteristic Symbol Primary Sampled Current I P Sens TA Sensitivity Sens (TOP)HT Sens (TOP)LT Noise 2 V NOISE Nonlinearity E LIN V OE(TA) Electrical Offset Voltage 3 V OE(TOP)HT V OE(TOP)LT Magnetic Offset Error I ERROM ...

Page 8

ACS758xCB X150B PERFORMANCE CHARACTERISTICS Characteristic Symbol Primary Sampled Current I P Sens TA Sensitivity Sens (TOP)HT Sens (TOP)LT Noise 2 V NOISE Nonlinearity E LIN V OE(TA) Electrical Offset Voltage 3 V OE(TOP)HT V OE(TOP)LT Magnetic Offset Error I ERROM ...

Page 9

ACS758xCB X200B PERFORMANCE CHARACTERISTICS Characteristic Symbol Primary Sampled Current I P Sens TA Sensitivity Sens (TOP)HT Sens (TOP)LT Noise 2 V NOISE Nonlinearity E LIN V OE(TA) Electrical Offset Voltage 3 V OE(TOP)HT V OE(TOP)LT Magnetic Offset Error I ERROM ...

Page 10

... T (°C) A Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with Characteristic Performance Data Data taken using the ACS758LCB-50B Accuracy Data 42.0 42.5 41.0 40.5 40.0 39.5 39.0 38.5 75 100 125 150 –50 (°C) 100.40 100.35 100.30 100 ...

Page 11

... T (°C) A Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with Characteristic Performance Data Data taken using the ACS758LCB-100B Accuracy Data 21.2 21.0 20.8 20.6 20.4 20.2 20.0 19.8 19.6 19.4 19.2 75 100 125 150 – ...

Page 12

ACS758xCB Electrical Offset Voltage versus Ambient Temperature -10 -15 -20 -25 -30 –60 –40 – Nonlinearity versus Ambient Temperature 0.30 0.25 02.0 0.15 0.10 0.05 0 –60 –40 –20 ...

Page 13

ACS758xCB Electrical Offset Voltage versus Ambient Temperature -10 -15 -20 -25 -30 –60 –40 – Nonlinearity versus Ambient Temperature 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0 ...

Page 14

... ACS758xCB Rise Time 2.988 μ μs/div.) Response Time 3.960 μ μs/div.) Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with Characteristic Performance Data Data taken using the ACS758LCB-100 Timing Data I (20 A/div (0.5 V/div.) IOUT 997 ns I (20 A/div (0.5 V/div.) ...

Page 15

ACS758xCB Definitions of Accuracy Characteristics Sensitivity (Sens). The change in device output in response change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity ( and the linear IC ...

Page 16

ACS758xCB Definitions of Dynamic Response Characteristics Power-On Time (t ). When the supply is ramped to its operat- PO ing voltage, the device requires a finite time to power its internal components before responding to an input magnetic field. Power-On ...

Page 17

ACS758xCB Chopper Stabilization Technique Chopper Stabilization is an innovative circuit technique that is used to minimize the offset voltage of a Hall element and an asso- ciated on-chip amplifier. Allegro patented a Chopper Stabiliza- tion technique that nearly eliminates Hall ...

Page 18

ACS758xCB Package CB, 5-pin package, leadform PFF 14.0±0.2 3.0±0 13.00±0.10 4.40±0. 10.00±0.10 0.51±0.10 1.9±0.2 Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 1.50±0.10 4.0±0.2 1º±2° A 3.5±0.2 17.5±0.2 Branded Face 2.9±0.2 5º±5° ...

Page 19

ACS758xCB Package CB, 5-pin package, leadform PSS 3.0±0.2 5 23.50±0.5 13.00±0.10 4.40±0.10 11.0±0.05 0.51±0.10 Thermally Enhanced, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 14.0±0.2 4.0±0.2 4 1.50±0.10 A Branded Face 0.381 10.00±0.10 7.00±0.10 1.9±0.2 Current ...

Page 20

ACS758xCB Revision History Revision Rev. 5 Copyright ©2008-2011, Allegro MicroSystems, Inc. The products described herein are protected by U.S. patents: 6,781,359; and 7,265,531. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from ...

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