Current sensor ic Allegro ACS72981LLRATR-050B3 with 7 pin PSOF package and automotive grade AEC Q100 certification
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MOQ:
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Delivery Time:
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Product Description
Product Overview
The Allegro ACS72981 family of current sensor ICs offers economical and precise solutions for AC or DC current sensing. With a 250 kHz bandwidth, these sensors are ideal for motor control, load detection and management, power supply and DC-to-DC converter control, and inverter control applications. Their
Product Attributes
- Brand: Allegro
- AEC-Q100 automotive qualification
- Package: 7-pin PSOF (suffix LR)
- Lead (Pb) free
- All leads plated with 100% matte tin
- Leadframe made of oxygen-free copper
Technical Specifications
| Part Number | Primary Sampled Current (IP) | Sensitivity (Sens) (Typ.) | Nominal Supply Voltage (VCC) | Operating Temperature Range (TA) | Packing |
|---|---|---|---|---|---|
| ACS72981LLRATR-050B3 | 50 A | 26.4 mV/A | 3.3 V | 40 to 150 C | 3000 pieces per 13-inch reel |
| ACS72981LLRATR-050B5 | 50 A | 40 mV/A | 5 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-050U3 | 50 A | 52.8 mV/A | 3.3 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-050U5 | 50 A | 80 mV/A | 5 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-100B3 | 100 A | 13.2 mV/A | 3.3 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-100B5 | 100 A | 20 mV/A | 5 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-100U3 | 100 A | 26.4 mV/A | 3.3 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981LLRATR-100U5 | 100 A | 40 mV/A | 5 V | 40 to 150 C | Contact Allegro for additional packing options. |
| ACS72981KLRATR-150B3 | 150 A | 8.8 mV/A | 3.3 V | 40 to 125 C | Contact Allegro for additional packing options. |
| ACS72981KLRATR-150B5 | 150 A | 13.33 mV/A | 5 V | 40 to 125 C | Contact Allegro for additional packing options. |
| ACS72981KLRATR-150U3 | 150 A | 17.6 mV/A | 3.3 V | 40 to 125 C | Contact Allegro for additional packing options. |
| ACS72981KLRATR-150U5 | 150 A | 26.66 mV/A | 5 V | 40 to 125 C | Contact Allegro for additional packing options. |
| ACS72981ELRATR-200B3 | 200 A | 6.6 mV/A | 3.3 V | 40 to 85 C | Contact Allegro for additional packing options. |
| ACS72981ELRATR-200B5 | 200 A | 10 mV/A | 5 V | 40 to 85 C | Contact Allegro for additional packing options. |
| ACS72981ELRATR-200U3 | 200 A | 13.2 mV/A | 3.3 V | 40 to 85 C | Contact Allegro for additional packing options. |
| ACS72981ELRATR-200U5 | 200 A | 20 mV/A | 5 V | 40 to 85 C | Contact Allegro for additional packing options. |
| Key Features & Benefits | |||||
| High-bandwidth 250 kHz analog output | |||||
| Less than 2 s output response time | |||||
| 3.3 V and 5 V supply operation | |||||
| Ultralow power loss: 200 internal conductor resistance | |||||
| Industry-leading noise performance and increased bandwidth through proprietary amplifier and filter design techniques | |||||
| Greatly improved total output error through digitally programmed and compensated gain and offset over the full operating temperature range | |||||
| Small package size, with easy mounting capability | |||||
| Monolithic Hall IC for high reliability | |||||
| Output voltage proportional to AC or DC currents | |||||
| Factory-trimmed for accuracy | |||||
| Extremely stable zero amp output offset voltage over temperature and lifetime | |||||
| Typical Overcurrent Capabilities | |||||
| Characteristic | Rating | Unit | |||
| Overcurrent (IPOC) | 285 A | A | (TA = 25C, 1 second on time, 60 seconds off time) | ||
| Overcurrent (IPOC) | 225 A | A | (TA = 85C, 1 second on time, 35 seconds off time) | ||
| Overcurrent (IPOC) | 170 A | A | (TA = 125C, 1 second on time, 30 seconds off time) | ||
| Overcurrent (IPOC) | 95 A | A | (TA = 150C, 1 second on time, 10 seconds off time) | ||
| Absolute Maximum Ratings | |||||
| Characteristic | Symbol | Rating | Unit | Notes | |
| Forward Supply Voltage | VCC | 6.5 | V | ||
| Reverse Supply Voltage | VRCC | 0.5 | V | ||
| Output Voltage | VIOUT | 6.5 | V | ||
| Reverse Output Voltage | VRIOUT | 0.5 | V | ||
| Output Current | IOUT | 10 | mA | Maximum survivable sink or source current through the output | |
| Working Voltage | VWORKING | 100 | V | Voltage applied between pins 5-6 and all other pins | |
| Maximum Continuous Current | ICMAX | 120 | A | TA = 25C | |
| Nominal Operating Ambient Temperature | TA Range E | 40 to 85 | C | ||
| Nominal Operating Ambient Temperature | TA Range K | 40 to 125 | C | ||
| Nominal Operating Ambient Temperature | TA Range L | 40 to 150 | C | ||
| Maximum Junction Temperature | TJ(max) | 165 | C | ||
| Storage Temperature | Tstg | 65 to 165 | C | ||
| Common Operating Characteristics | |||||
| Characteristic | Test Conditions | Min. | Typ. | Max. | Unit |
| Supply Voltage | 5 V nominal supply voltage variant | 4.5 | 5 | 5.5 | V |
| Supply Voltage | 3.3 V nominal supply voltage variant | 3 | 3.3 | 3.6 | V |
| Supply Current | VCC(min) VCC VCC(max), no load on output | 14 | mA | ||
| Power-On Delay | TA = 25C | 70 | s | ||
| Undervoltage Lockout (UVLO) Threshold | VCC rising; UVLO is disabled, enabling the device output | 3.8 | 4.2 | V | |
| Undervoltage Lockout (UVLO) Threshold | VCC falling; UVLO is enabled, disabling the device output | 3.7 | V | ||
| UVLO Enable/Disable Delay Time | Time measured from falling VCC | 74 | s | ||
| UVLO Enable/Disable Delay Time | Time measured from rising VCC > VUVLOD to UVLO disabled | 7 | s | ||
| Power-On Reset Voltage | VCC rising | 2.8 | V | ||
| Power-On Reset Voltage | VCC falling | 2.5 | V | ||
| Power-On Reset Hysteresis | VHys(POR) | 250 | mV | ||
| Internal Bandwidth | Small signal 3 dB, CL = 1 nF | 250 | kHz | ||
| Rise Time | TA = 25C, CL = 1 nF, 1 V step on output | 1.5 | s | ||
| Propagation Delay Time | TA = 25C, CL = 1 nF, 1 V step on output | 1 | s | ||
| Response Time | TA = 25C, CL = 1 nF, 1 V step on output | 1.8 | s | ||
| Output Slew Rate | TA = 25C, CL = 1 nF, 1 V step on output | 0.53 | V/s | ||
| DC Output Impedance | ROUT | < 1 | |||
| Output Load Resistance (Min) | RLOAD(MIN) VIOUT to GND | 4.7 | k | ||
| Output Load Capacitance (Max) | CLOAD(MAX) VIOUT to GND | 10 | nF | ||
| Primary Conductor Resistance | RPRIMARY TA = 25C | 200 | |||
| Output Voltage Clamp | VCLP(HIGH) TA = 25C, RL(PULLDWN) = 10 k to GND | 0.9 VCC | V | ||
| Output Voltage Clamp | VCLP(LOW) TA = 25C, RL(PULLUP) = 10 k to VCC | 0.1 VCC | V | ||
| Delay to Clamp | tCLP TA = 25C; CL = 1nF; Step on IP from 0.75 IPR to 1.5 IPR | 5 | s | ||
| Output Saturation Voltage | VSAT(HIGH) TA = 25C, RL(PULLDWN) = 10 k to GND | VCC 0.2 | V | ||
| Output Saturation Voltage | VSAT(LOW) TA = 25C, RL(PULLUP) = 10 k to VCC | 200 | mV | ||
| Error Components | |||||
| Characteristic | Test Conditions | Min. | Typ. | Max. | Unit |
| Quiescent Voltage Ratiometry Error | VCC = 5% variation of nominal supply voltage | 3.5 | mV | ||
| Sensitivity Ratiometry Error | VCC = 5% variation of nominal supply voltage | 0.6 | % | ||
| Clamp Ratiometry Error | VCC = 5% variation of nominal supply voltage | 1.0 | % | ||
| Noise | TA = 25C, CL = 1 nF | 0.4 | mARMS /(Hz) | ||
| Nonlinearity | Up to full-scale IP; IP applied for 5 ms | 0.8 | 0.45 | 0.8 | % |
| Symmetry | Over half-scale IP | 0.25 | % | ||
| Common Mode Field Offset Error Ratio | Measured at 100 G | 2 | mA/G | ||
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