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. Housed in a low-profile, core-less package with a small footprint, it offers high precision and excellent performance in demanding applications. The device features integrated shielding for immunity to dV/dt and stray electric fields, common-mode field rejection, and factory-programmed calibration for optimized accuracy. Its 200 internal conductor resistance minimizes power loss, while its monolithic design ensures high reliability. Ideal for high-side, high-voltage applications, the ACS780xLR provides an analog output voltage proportional to the primary current.
Product Attributes
- Brand: Allegro
- Technology: Hall-effect
- Package: 7-pin PSOF (suffix LR)
- Certifications: AEC-Q100 Automotive Grade
- Material: Lead (Pb) free, 100% matte tin plating, oxygen-free copper leadframe
Technical Specifications
| Model | Sensed Current (Bidirectional) | Sensed Current (Unidirectional) | Sensitivity (Typ.) | Operating Temperature | Bandwidth (Typ.) | Internal Conductor Resistance (Typ.) | Primary Conductor Voltage Isolation |
|---|---|---|---|---|---|---|---|
| ACS780LLRTR-050B-T | 50 A | - | 40 mV/A | -40 to 150 C | 120 kHz | 200 | 100 V peak |
| ACS780LLRTR-050U-T | - | 0 to 50 A | 60 mV/A | -40 to 150 C | 120 kHz | 200 | 100 V peak |
| ACS780LLRTR-100B-T | 100 A | - | 20 mV/A | -40 to 150 C | 120 kHz | 200 | 100 V peak |
| ACS780LLRTR-100U-T | - | 0 to 100 A | 40 mV/A | -40 to 150 C | 120 kHz | 200 | 100 V peak |
| ACS780KLRTR-150B-T | 150 A (transient), 100 A (continuous) | - | 13.33 mV/A | -40 to 125 C | 120 kHz | 200 | 100 V peak |
| ACS780KLRTR-150U-T | - | 0 to 150 A (transient), 0 to 100 A (continuous) | 26.66 mV/A | -40 to 125 C | 120 kHz | 200 | 100 V peak |
| General Specifications: | |||||||
| Supply Voltage (VCC) | 4.5 to 5.5 V (single supply) | ||||||
| Supply Current (ICC) | 11 mA (Typ.) | ||||||
| Output Rise Time (tr) | 3.6 s (Typ.) | ||||||
| Quiescent Output Voltage (Bidirectional) | VCC / 2 (Typ.) | ||||||
| Quiescent Output Voltage (Unidirectional) | 0.1 VCC (Typ.) | ||||||
| Overcurrent Capability (IPOC, TA = 25C, 1s on time) | 285 A | ||||||
| Package Dimensions | See Package Outline Drawing (7-pin PSOF) | ||||||
2211030200_ALLEGRO-ACS780LLRTR-050U-T_C459343.pdf
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