Datasheet ACS71240 (Allegro) - 7
| Manufacturer | Allegro |
| Description | Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages |
| Pages / Page | 21 / 7 — Automotive-Grade, Galvanically Isolated Current Sensor IC. ACS71240 |
| File Format / Size | PDF / 1.5 Mb |
| Document Language | English |
Automotive-Grade, Galvanically Isolated Current Sensor IC. ACS71240
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Automotive-Grade, Galvanically Isolated Current Sensor IC ACS71240 with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages COMMON ELECTRICAL CHARACTERISTICS (continued):
Valid through the full range of TA and VCC, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. [1] Max. Unit FAULT CHARACTERISTICS
FAULT Operating Point IFAULT – ±1 × IPR [4] – A FAULT Current Hysteresis IF(HYS) Percent of IPR(MAX) 3 5 – % FAULT Output Pullup Resistor RPU 10 – 500 kΩ FAULT Output Voltage VOL RPU = 10 kΩ, during fault condition – – 0.3 V Time from |IP| rising above |IFAULT| until VFAULT < V FAULT Response Time t OL(MAX). 100 pF from FAULT to GND. FAULT – 1.5 2.5 [5] µs Input current step 20% above IFAULT with rise time ≤ 1 µs. I FAULT Error E FAULT, TA = 25°C –10 ±3.5 10 % F TA = –40°C or TA(MAX) –10 ±5 10 % [1] Typical values with ± are 3 sigma values. [2] Guaranteed by design. Limit calculated using 6 sigma. Not tested in production. [3] The sensor IC will continue to respond to current beyond the range of IP until the high or low saturation voltage; however, the nonlinearity in this region will be worse than through the rest of the measurement range. [4] Unless otherwise specified, contact Allegro for alternative fault levels. Available from ±0.5 to 2 × IPR. [5] Not tested in production. 7 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com
Valid through the full range of TA and VCC, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. [1] Max. Unit FAULT CHARACTERISTICS
FAULT Operating Point IFAULT – ±1 × IPR [4] – A FAULT Current Hysteresis IF(HYS) Percent of IPR(MAX) 3 5 – % FAULT Output Pullup Resistor RPU 10 – 500 kΩ FAULT Output Voltage VOL RPU = 10 kΩ, during fault condition – – 0.3 V Time from |IP| rising above |IFAULT| until VFAULT < V FAULT Response Time t OL(MAX). 100 pF from FAULT to GND. FAULT – 1.5 2.5 [5] µs Input current step 20% above IFAULT with rise time ≤ 1 µs. I FAULT Error E FAULT, TA = 25°C –10 ±3.5 10 % F TA = –40°C or TA(MAX) –10 ±5 10 % [1] Typical values with ± are 3 sigma values. [2] Guaranteed by design. Limit calculated using 6 sigma. Not tested in production. [3] The sensor IC will continue to respond to current beyond the range of IP until the high or low saturation voltage; however, the nonlinearity in this region will be worse than through the rest of the measurement range. [4] Unless otherwise specified, contact Allegro for alternative fault levels. Available from ±0.5 to 2 × IPR. [5] Not tested in production. 7 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com
