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100 Amp Bidirectional Linear Hall Effect Current Sensor ALLEGRO ACS780LLRTR-100U-T with Programmed Sensitivity

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100 Amp Bidirectional Linear Hall Effect Current Sensor ALLEGRO ACS780LLRTR-100U-T with Programmed Sensitivity

working temperature : -40℃~+150℃

Current Range : 100A

Voltage - Supply : 4.5V~5.5V

Current Terminal Resistance : 0.2mΩ

Band Width : 120kHz

Response Time (tr) : 3.6us

Sensitivity : 40mV/A

Bidirectional Current Detection : Not supported

Description : 100A 40mV/A PSOF-7 Current Sensors RoHS

Mfr. Part # : ACS780LLRTR-100U-T

Model Number : ACS780LLRTR-100U-T

Package : PSOF-7

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Product Overview

The Allegro ACS780xLR is a fully integrated, automotive-grade linear Hall-effect current sensor IC designed for bidirectional AC and DC current sensing up to 100 A. It features a core-less, low-profile package with a small footprint and offers high-precision measurement with an ultra-low 200 internal conductor resistance for minimal power loss. The device incorporates common-mode field rejection and proprietary integrated shield technology for enhanced immunity to interfering magnetic fields and high dV/dt signals, ensuring stable performance in high-side, high-voltage applications. Its factory-programmed sensitivity and quiescent output voltage, along with chopper-stabilized signal path and digital temperature compensation, contribute to excellent accuracy and stability across its operating temperature range. The ACS780xLR is ideal for applications requiring precise current monitoring in automotive and industrial environments.

Product Attributes

Brand: Allegro
Technology: Linear Hall-Effect
Package: 7-pin PSOF (suffix LR)
Automotive Qualification: AEC-Q100
Lead Free: Yes
Material: Lead frame made of oxygen-free copper; leads plated with 100% matte tin.

Technical Specifications

Feature/Model	Description	Value	Unit
Sensed Current Range & Sensitivity	ACS780LLRTR-050B-T (Bidirectional)	50	A
	ACS780LLRTR-050U-T (Unidirectional)	0 to 50	A
	ACS780LLRTR-100B-T (Bidirectional)	100	A
	ACS780LLRTR-100U-T (Unidirectional)	0 to 100	A
	ACS780KLRTR-150B-T (Bidirectional)	150 (transient), 100 (continuous)	A
ACS780KLRTR-150U-T (Unidirectional)	0 to 150 (transient), 0 to 100 (continuous)	A
Continuous Current Rating	Up to 100 A		A
Internal Conductor Resistance	Typical	200
Supply Voltage	VCC	4.5 to 5.5	V
Bandwidth	Typical	120	kHz
Output Rise Time	Typical (3.6 s for step input current)	3.6	s
Operating Temperature Range	Range K	-40 to 150	C
	Range L	-40 to 125	C
Quiescent Output Voltage (Bidirectional)	IP = 0 A, TA = 25C	VCC/2	V
Quiescent Output Voltage (Unidirectional)	IP = 0 A, TA = 25C	0.1 VCC	V
Isolation Voltage	Up to 100 V peak on primary conductor	100	V
Overcurrent Capability (IPOC)	TA = 25C, 1 s on time	285	A
Package Thermal Resistance (RJA)	Mounted on evaluation board	18	C/W
Maximum Junction Temperature	TJ(max)	165	C
Storage Temperature	Tstg	-65 to 165	C
Sensitivity (X050B)	Typical	40	mV/A
Sensitivity (X100B)	Typical	20	mV/A
Sensitivity (X150B)	Typical	13.33	mV/A

2204121100_ALLEGRO-ACS780LLRTR-100U-T_C459344.pdf

100 Amp Bidirectional Linear Hall Effect Current Sensor ALLEGRO ACS780LLRTR-100U-T with Programmed Sensitivity Images

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