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High precision bidirectional current sensor ALLEGRO ACS780LLRTR-050B-T with programmed output voltage

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High precision bidirectional current sensor ALLEGRO ACS780LLRTR-050B-T with programmed output voltage

working temperature : -40℃~+150℃

Current Range : 50A

Voltage - Supply : 4.5V~5.5V

Current Terminal Resistance : 0.2mΩ

Band Width : 120kHz

Response Time (tr) : 3us

Sensitivity : 40mV/A

Bidirectional Current Detection : Support

Description : 50A 40mV/A PSOF-7 Current Sensors RoHS

Mfr. Part # : ACS780LLRTR-050B-T

Model Number : ACS780LLRTR-050B-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 200 internal conductor resistance for ultra-low power loss. The device offers high-precision measurements with factory programming for sensitivity and quiescent output voltage, enhanced by chopper-stabilized signal paths and digital temperature compensation. Its integrated shield technology provides high-level immunity to current conductor dV/dt and stray electric fields, making it ideal for high-side, high-voltage applications. The sensor outputs an analog voltage (VOUT) that varies linearly with the primary current (IP) and incorporates common-mode field rejection for optimal performance in the presence of interfering magnetic fields.

Product Attributes

Brand: Allegro MicroSystems
Package Type: 7-pin PSOF (suffix LR)
Certifications: AEC-Q100 automotive qualification
Lead Finish: 100% matte tin
Leadframe Material: Oxygen-free copper
Material Compliance: Lead (Pb) free

Technical Specifications

Feature/Model	Bidirectional 50 A (ACS780LLRTR-050B-T)	Unidirectional 0-50 A (ACS780LLRTR-050U-T)	Bidirectional 100 A (ACS780LLRTR-100B-T)	Unidirectional 0-100 A (ACS780LLRTR-100U-T)	Bidirectional 150 A transient / 100 A continuous (ACS780KLRTR-150B-T)	Unidirectional 0-150 A transient / 0-100 A continuous (ACS780KLRTR-150U-T)
Sensed Current (IP)	50 A	0 to 50 A	100 A	0 to 100 A	150 A (transient), 100 A (continuous)	0 to 150 A (transient), 0 to 100 A (continuous)
Sensitivity (Sens Typ.)	40 mV/A	60 mV/A	20 mV/A	40 mV/A	13.33 mV/A	26.66 mV/A
Operating Temperature (TOP)	-40 to 150 C	-40 to 150 C	-40 to 150 C	-40 to 150 C	-40 to 125 C	-40 to 125 C
Internal Conductor Resistance	200 (typical)
Supply Voltage (VCC)	4.5 to 5.5 V (single supply)
Bandwidth (typical)	120 kHz
Output Rise Time (3.6 s)	3.6 s (in response to step input current)
Overcurrent Capability (IPOC)	285 A (TA = 25C, 1s on time)
Package Thermal Resistance (RJA)	18 C/W (mounted on Allegro evaluation board)
Peak-to-Peak Noise (VNOISEPP)	36 mV (X050B)	54 mV (X050U)	18 mV (X100B)	36 mV (X100U)	12 mV (X150B)	24 mV (X150U)
Nonlinearity (ELIN)	-1 to 1 %
Electrical Offset Voltage (VOE(TA))	-10 to 10 mV (TA = 25C)
Total Output Error (ETOT(HT))	-3.25 to 3.25 % (TOP = 25C to 150C/125C)
Total Output Error (ETOT(LT))	-3.75 to 3.75 % (TOP = -40C to 25C)
Power-On Time (tPO)	130 s (typical, TA = 25C)
Propagation Delay (tPD)	2.5 s (typical, TA = 25C)

2201242200_ALLEGRO-ACS780LLRTR-050B-T_C459342.pdf

High precision bidirectional current sensor ALLEGRO ACS780LLRTR-050B-T with programmed output voltage Images

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