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ACS712ELCTR-30A-T Datasheet(PDF) 4 Page - Allegro MicroSystems |
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ACS712ELCTR-30A-T Datasheet(HTML) 4 Page - Allegro MicroSystems |
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4 / 14 page  Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor ACS712 4 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com COMMON OPERATING CHARACTERISTICS1 over full range of T A, CF = 1 nF, and VCC = 5 V, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ. Max. Units ELECTRICAL CHARACTERISTICS Supply Voltage VCC 4.5 5.0 5.5 V Supply Current ICC VCC = 5.0 V, output open – 10 13 mA Output Capacitance Load CLOAD VIOUT to GND – – 10 nF Output Resistive Load RLOAD VIOUT to GND 4.7 – – kΩ Primary Conductor Resistance RPRIMARY TA = 25°C – 1.2 – mΩ Rise Time tr IP = IP(max), TA = 25°C, COUT = open – 5 – μs Frequency Bandwidth f –3 dB, TA = 25°C; IP is 10 A peak-to-peak – 80 – kHz Nonlinearity ELIN Over full range of IP – 1.5 – % Symmetry ESYM Over full range of IP 98 100 102 % Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A, TA = 25°C – VCC × 0.5 –V Power-On Time tPO Output reaches 90% of steady-state level, TJ=25°C, 20 A present on leadframe –35 – μs Magnetic Coupling2 – 12 – G/A Internal Filter Resistance3 RF(INT) 1.7 kΩ 1Device may be operated at higher primary current levels, IP, and ambient, TA, and internal leadframe temperatures, TA, provided that the Maximum Junction Temperature, TJ(max), is not exceeded. 21G = 0.1 mT. 3RF(INT) forms an RC circuit via the FILTER pin. COMMON THERMAL CHARACTERISTICS1 Min. Typ. Max. Units Operating Internal Leadframe Temperature TA E range –40 – 85 °C Value Units Junction-to-Lead Thermal Resistance2 RθJL Mounted on the Allegro ASEK 712 evaluation board 5 °C/W Junction-to-Ambient Thermal Resistance RθJA Mounted on the Allegro 85-0322 evaluation board, includes the power con- sumed by the board 23 °C/W 1Additional thermal information is available on the Allegro website. 2The Allegro evaluation board has 1500 mm2 of 2 oz. copper on each side, connected to pins 1 and 2, and to pins 3 and 4, with thermal vias connect- ing the layers. Performance values include the power consumed by the PCB. Further details on the board are available from the Frequently Asked Questions document on our website. Further information about board design and thermal performance also can be found in the Applications Informa- tion section of this datasheet. |
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