ACS706ELC-05C

ACS706ELC-05C Datasheet

ACS706ELC-05C

Part	Datasheet
ACS706ELC-05C	ACS706ELC-05C (pdf)

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ACS706ELC-05C Bidirectional mΩ Hall Effect Based Linear Current Sensor IC with Voltage Isolation and 15 A Dynamic Range Not for New Design These parts are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. Date of status change December 26, 2006 Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the ACS712. NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. ACS706ELC-05C Bidirectional mΩ Hall Effect Based Linear Current Sensor with Voltage Isolation and 15 A Dynamic Range Package LC Pin 1 IP+ Pin 2 IP+ Pin 3 Pin 4: Pin 8 VCC Pin 7 VOUT Pin 6 N.C. Pin 5 GND Pins 6 and 7 are internally connected in shipping product. For compatibility with future devices, leave pin 6 floating. Nominal Operating Temperature, TA Range to 85ºC Overcurrent Transient Tolerance, IP 60 A 100 total pulses, 250 ms duration each, applied at a rate of 1 pulse every 100 seconds. ABSOLUTE MAXIMUM RATINGS Maximum Junction, TJ max ....................... 165°C Storage Temperature, TS to 170°C *Junction Temperature, TJ < TJ max . The Allegro ACS706 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, switch-mode 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 surface of 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 >VCC / 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 sampling. The internal resistance of this conductive path is typically mΩ, providing low power loss. The thickness of the copper conductor allows survival of the device at up to 5x overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal leads pins 5 through This allows the ACS706 to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques. The ACS706 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 hightemperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory. Features and Benefits • Small footprint, low-profile SOIC8 package • mΩ internal conductor resistance • 1600 VRMS minimum isolation voltage between pins 1-4 and 5-8 • to 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 TÜV America Certificate Number U8V 04 12 54214 005 Use the following complete part number when ordering: Part Number ACS706ELC-05C Package SOIC8 surface mount 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 508 853-5000 ACS706ELC-05C Functional Block Diagram Pin 3 Pin 4 Dynamic Offset Cancellation Filter VCC Pin 8 Voltage Regulator To all subcircuits VOUT Pin 7 N.C. Pin 6 Gain Temperature Coefficient Trim Control Offset IP+ IP+ Pin 1 Pin 2 GND Pin 5 A Pins 6 and 7 are internally connected in shipping product. For compatibility with future devices, leave pin 6 floating. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 508 853-5000 ACS706ELC-05C OPERATING CHARACTERISTICS Characteristic Test Conditions Min. Typ. Max. Units ELECTRICAL CHARACTERISTICS, over operating ambient temperature range unless otherwise specified Optimized Accuracy Range Linear Sensing Range Supply Voltage Supply Current Output Resistance Output Capacitance Load Output Resistive Load Primary Conductor Resistance RMS Isolation Voltage DC Isolation Voltage IP IR VCC ICC ROUT CLOAD RLOAD RPRIMARY VISORMS VISODC VCC = V, output open IOUT = mA VOUT to GND VOUT to GND TA = 25°C Pins 1-4 and 5-8 60 Hz, 1 minute 1600 2500 5000 PERFORMANCE CHARACTERISTICS, over operating ambient temperature range, unless otherwise specified Propagation Time Response Time Rise Time Frequency Bandwidth Sensitivity Noise Linearity Symmetry Zero Current Output Voltage Electrical Offset Voltage tPROP tRESPONSE Sens VNOISE

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ACS706ELC-05C

Bidirectional mΩ Hall Effect Based Linear Current Sensor IC with Voltage Isolation and 15 A Dynamic Range

Not for New Design

These parts are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available.

Date of status change December 26, 2006

Recommended Substitutions:

For existing customer transition, and for new customers or new applications, refer to the ACS712.

NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative.

ACS706ELC-05C

Bidirectional mΩ Hall Effect Based Linear Current Sensor with Voltage Isolation and 15 A Dynamic Range

Package LC

Pin 1 IP+ Pin 2 IP+ Pin 3 Pin 4:

Pin 8 VCC Pin 7 VOUT Pin 6 N.C. Pin 5 GND

Pins 6 and 7 are internally connected in shipping product. For compatibility with future devices, leave pin 6 floating.

Nominal Operating Temperature, TA Range to 85ºC

Overcurrent Transient Tolerance*, IP 60 A *100 total pulses, 250 ms duration each, applied at a rate of 1 pulse every 100 seconds.

ABSOLUTE MAXIMUM RATINGS

Maximum Junction, TJ max ....................... 165°C Storage Temperature, TS to 170°C
*Junction Temperature, TJ < TJ max .

The Allegro ACS706 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, switch-mode 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 surface of 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 >VCC / 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 sampling. The internal resistance of this conductive path is typically mΩ, providing low power loss. The thickness of the copper conductor allows survival of the device at up to 5x overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal leads pins 5 through This allows the ACS706 to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

The ACS706 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 hightemperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory.

Features and Benefits
• Small footprint, low-profile SOIC8 package
• mΩ internal conductor resistance
• 1600 VRMS minimum isolation voltage between pins 1-4 and 5-8
• to 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

TÜV America Certificate Number U8V 04 12 54214 005
Use the following complete part number when ordering:

Part Number ACS706ELC-05C

Package SOIC8 surface mount
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 508 853-5000

ACS706ELC-05C

Functional Block Diagram

Pin 3 Pin 4

Dynamic Offset Cancellation Filter

VCC Pin 8

Voltage Regulator

To all subcircuits

VOUT Pin 7

N.C. Pin 6

Gain

Temperature Coefficient

Trim Control

Offset

IP+ IP+ Pin 1 Pin 2

GND Pin 5

A Pins 6 and 7 are internally connected in shipping product. For compatibility with future devices, leave pin 6 floating.
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 508 853-5000

ACS706ELC-05C

OPERATING CHARACTERISTICS

Characteristic

Test Conditions

Min. Typ. Max. Units

ELECTRICAL CHARACTERISTICS, over operating ambient temperature range unless otherwise specified

Optimized Accuracy Range Linear Sensing Range Supply Voltage Supply Current Output Resistance Output Capacitance Load Output Resistive Load Primary Conductor Resistance RMS Isolation Voltage DC Isolation Voltage

IP IR VCC ICC ROUT CLOAD RLOAD RPRIMARY VISORMS VISODC

VCC = V, output open IOUT = mA VOUT to GND VOUT to GND TA = 25°C Pins 1-4 and 5-8 60 Hz, 1 minute
1600 2500
5000

PERFORMANCE CHARACTERISTICS, over operating ambient temperature range, unless otherwise specified

Propagation Time Response Time Rise Time Frequency Bandwidth

Sensitivity

Noise

Linearity Symmetry Zero Current Output Voltage

Electrical Offset Voltage
tPROP tRESPONSE

Sens

VNOISE

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Datasheet ID: ACS706ELC-05C 516104