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Current sensing solution Allegro ACS725LLCTR-50AB-T featuring differential Hall effect and low profile SOIC8 package

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Current sensing solution Allegro ACS725LLCTR-50AB-T featuring differential Hall effect and low profile SOIC8 package

working temperature : -40℃~+150℃

Current Range : 50A

Voltage - Supply : 3V~3.6V

Current Terminal Resistance : 1.2mΩ

Band Width : 120kHz

Response Time (tr) : 4us

Sensitivity : 26.4mV/A

Bidirectional Current Detection : Support

Description : 50A 26.4mV/A SOIC-8 Current Sensors RoHS

Mfr. Part # : ACS725LLCTR-50AB-T

Model Number : ACS725LLCTR-50AB-T

Package : SOIC-8

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Product Overview

The Allegro ACS725 is an economical and precise current sensor IC designed for AC or DC current sensing in industrial, automotive, commercial, and communications systems. Its small, low-profile SOIC8 package is ideal for space-constrained applications, reducing board area and costs. The device features differential Hall sensing for common-mode field rejection, a low-resistance primary conductor (1.2 m typical) for minimal power loss and high inrush current capability, and an integrated shield for suppressed output noise. With a high-bandwidth analog output of 120 kHz and patented digital temperature compensation, it offers accurate, fast response times in control applications. The ACS725 provides galvanically isolated current sensing without the need for costly isolation techniques, making it suitable for high-side applications.

Product Attributes

Brand: Allegro
Package: 8-Pin SOIC (LC)
Certifications: AEC-Q100 qualified, CB Certificate Number: US-32848-UL, TV America Certificate Number: U8V 18 02 54214 041, CB 14 11 54214 031
Material: Leadframe plated with 100% matte tin; internally Pb-free (except for flip-chip high-temperature Pb-based solder balls)

Technical Specifications

Model	Current Sensing Range (IPR)	Sensitivity (Typ. mV/A)	Operating Temperature (TA)	Zero Current Output Voltage (VIOUT(Q))	Total Output Error (ETOT) (Typ. %)	Bandwidth (BW)	Primary Conductor Resistance (RIP) (Typ.)
ACS725LLCTR-05AB-T	5 A	264	40 to 150 C	VCC 0.5	0.9 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-10AB-T	10 A	132	40 to 150 C	VCC 0.5	0.8 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-10AU-T	0 10 A	264	40 to 150 C	VCC 0.1	0.9 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-20AB-T	20 A	66	40 to 150 C	VCC 0.5	0.8 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-20AB-T-H	20 A	66	40 to 150 C	VCC 0.5	0.7 (25-150C) / 1.5 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-20AU-T	0 20 A	132	40 to 150 C	VCC 0.1	0.8 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-30AB-T	30 A	44	40 to 150 C	VCC 0.5	0.7 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-30AB-T-H	30 A	44	40 to 150 C	VCC 0.5	0.7 (25-150C) / 1.5 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-30AU-T	0 30 A	88	40 to 150 C	VCC 0.1	0.8 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-40AB-T	40 A	33	40 to 150 C	VCC 0.5	1 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m
ACS725LLCTR-50AB-T	50 A	26.4	40 to 150 C	VCC 0.5	1 (25-150C) / 4 (-40-25C)	120 kHz	1.2 m

Characteristic	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
Supply Voltage	VCC		3	3.3	3.6	V
Supply Current	ICC	VCC = 3.3 V, output open		10	14	mA
Primary Conductor Resistance	RIP	TA = 25C		1.2		m
Dielectric Surge Strength Test Voltage	VSURGE	Tested 5 pulses at 2/minute in compliance to IEC 61000-4-5 1.2 s (rise) / 50 s (width)			6000	V
Dielectric Strength Test Voltage	VISO	Agency type-tested for 60 seconds per UL standard 60950-1 (edition 2). Production tested at VISO for 1 second, in accordance with UL 60950-1 (edition 2).			2400	VRMS
Working Voltage for Basic Isolation	VWVBI	Maximum approved working voltage for basic (single) isolation according UL 60950-1 (edition 2)			420 Vpk or VDC / 297 Vrms
Clearance	Dcl	Minimum distance through air from IP leads to signal leads		4.2		mm
Creepage	Dcr	Minimum distance along package body from IP leads to signal leads		4.2		mm
Rise Time	tr	IP = IP(max), TA = 25C, CL = 1 nF		3		s
Propagation Delay	tpd	IP = IP(max), TA = 25C, CL = 1 nF		2		s
Response Time	tRESPONSE	IP = IP(max), TA = 25C, CL = 1 nF		4		s
Power-On Time	tPO	Output reaches 90% of steady-state level, TA = 25C, IP = IPR(max) applied		80		s

Typical Applications

Motor control
Load detection and management
Switched-mode power supplies
Overcurrent fault protection

2410010100_ALLEGRO-ACS725LLCTR-50AB-T_C2155515.pdf

Current sensing solution Allegro ACS725LLCTR-50AB-T featuring differential Hall effect and low profile SOIC8 package Images

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