Datasheet ACS715 (Allegro) - 6

Automotive Grade, Fully Integrated, Hall-Effect-Based Linear Current Sensor IC ACS715 with 2.1 kVRMS Voltage Isolation and Low-Resistance Current Conductor COMMON OPERATING CHARACTERISTICS1 over full range of TA, 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 = 10 nF – 3.5 – 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 , IP applied for 5 ms – ±1.5 – % Zero Current Output Voltage VIOUT(Q) Unidirectional; IP = 0 A, TA = 25°C – VCC × 0.1 – V Power-On Time t Output reaches 90% of steady-state level, no capacitor on PO FILTER pin; TJ = 25; 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 Tem- perature, 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 E range –40 – 85 °C Operating Internal Leadframe Temperature TA L range –40 – 150 °C Value Units Junction-to-Lead Thermal Resistance2 RθJL Mounted on the Allegro ASEK 715 evaluation board 5 °C/W Junction-to-Ambient Thermal Resistance2,3 R Mounted on the Allegro 85-0322 evaluation board, includes the power θJA consumed 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 connecting the layers. Per- formance 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 Information section of this datasheet. 3RθJA values shown in this table are typical values, measured on the Allegro evaluation board. The actual thermal performance depends on the actual application board design, the airflow in the application, and thermal interactions between the device and surrounding components through the PCB and the ambient air. To improve thermal performance, see our applications material on the Allegro website. 5 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com