Changsha Purple Horn E-Commerce Co., Ltd.
| working temperature | -40℃~+150℃ |
| Current Range | 50A |
| Voltage - Supply | 3V~3.6V |
| Current Terminal Resistance | 0.2mΩ |
| Band Width | 120kHz |
| Response Time (tr) | 3.6us |
| Sensitivity | 26.4mV/A |
| Bidirectional Current Detection | Support |
| Description | 50A 26.4mV/A PSOF-7 Current Sensors RoHS |
| Mfr. Part # | ACS781LLRTR-050B-T |
| Package | PSOF-7 |
| Model Number | ACS781LLRTR-050B-T |
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Product Specification
| working temperature | -40℃~+150℃ | Current Range | 50A |
| Voltage - Supply | 3V~3.6V | Current Terminal Resistance | 0.2mΩ |
| Band Width | 120kHz | Response Time (tr) | 3.6us |
| Sensitivity | 26.4mV/A | Bidirectional Current Detection | Support |
| Description | 50A 26.4mV/A PSOF-7 Current Sensors RoHS | Mfr. Part # | ACS781LLRTR-050B-T |
| Package | PSOF-7 | Model Number | ACS781LLRTR-050B-T |
The Allegro ACS781xLR is a fully integrated, automotive-grade linear Hall-effect-based current sensor IC designed for high-precision measurement of bidirectional AC and DC currents up to 100 A. It features a core-less, low-profile package with a small footprint, ideal for space-constrained applications. The device offers ultra-low power loss due to its 200 internal conductor resistance and incorporates common-mode field rejection for optimized performance in the presence of interfering magnetic fields. Its output voltage (VOUT) varies linearly with the primary current (IP), and it is factory-trimmed for accuracy, providing stable quiescent output voltage and excellent total output error across a wide operating temperature range. The integrated shield technology enhances immunity to dV/dt and stray electric fields, making it suitable for high-side, high-voltage applications.
| Characteristic | Model/Variant | Value | Unit | Notes |
|---|---|---|---|---|
| Continuous Sensed Current | ACS781xLR (General) | 100 | A | Up to 100 A |
| Primary Conductor Resistance | ACS781xLR | 200 | Typical at 25C | |
| Primary Conductor Voltage Isolation | ACS781xLR | 100 | Vpeak | On primary conductor |
| Supply Voltage | ACS781xLR | 3 to 3.6 | V | Single supply operation |
| Typical Bandwidth | ACS781xLR | 120 | kHz | Small signal -3 dB |
| Output Rise Time | ACS781xLR | 3.6 | s | In response to step input current |
| Operating Temperature Range | Range K | -40 to 125 | C | Nominal |
| Operating Temperature Range | Range L | -40 to 150 | C | Nominal |
| Quiescent Output Voltage (Bidirectional) | ACS781xLR | VCC / 2 | - | IP = 0 A, TA = 25C |
| Quiescent Output Voltage (Unidirectional) | ACS781xLR | 0.1 VCC | - | IP = 0 A, TA = 25C |
| Overcurrent Capability (1s on time, 60s off time) | ACS781xLR | 285 | A | TA = 25C |
| Package Dimensions | 7-pin PSOF | 1.5 | mm | Thickness |
| Part Number | Sensed Current | Sensitivity (Typ.) | Operating Temp. | Packing |
| ACS781LLRTR-050B-T | Bidirectional 50 A | 26.4 mV/A | -40 to 150 C | Tape and reel |
| ACS781LLRTR-050U-T | Unidirectional 0 to 50 A | 39.6 mV/A | -40 to 150 C | Tape and reel |
| ACS781LLRTR-100B-T | Bidirectional 100 A | 13.2 mV/A | -40 to 150 C | Tape and reel |
| ACS781LLRTR-100U-T | Unidirectional 0 to 100 A | 26.4 mV/A | -40 to 150 C | Tape and reel |
| ACS781KLRTR-150B-T | Bidirectional 150 A (transient), 100 A (continuous) | 8.8 mV/A | -40 to 125 C | Tape and reel |
| ACS781KLRTR-150U-T | Unidirectional 0 to 150 A (transient), 0 to 100 A (continuous) | 17.6 mV/A | -40 to 125 C | Tape and reel |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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