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ACS770KCB-150B-PFF-T Datasheet(PDF) 3 Page - Allegro MicroSystems |
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ACS770KCB-150B-PFF-T Datasheet(HTML) 3 Page - Allegro MicroSystems |
3 / 29 page Thermally Enhanced, Fully Integrated, Hall-Effect-Based High-Precision Linear Current Sensor IC with 100 µΩ Current Conductor ACS770xCB 3 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ISOLATION CHARACTERISTICS Characteristic Symbol Notes Rating Unit Dielectric Strength Test Voltage [1] VISO Agency type-tested for 60 seconds per UL standard 60950-1, 2nd Edition 4800 VAC Working Voltage for Basic Isolation VWFSI For basic (single) isolation per UL standard 60950-1, 2nd Edition 990 VDC or Vpk 700 Vrms Working Voltage for Reinforced Isolation VWFRI For reinforced (double) isolation per UL standard 60950- 1, 2nd Edition 636 VDC or Vpk 450 Vrms 1 60-second testing is only done during the UL certification process. In production, Allegro conducts 1-second isolation testing according to UL 60950-1, 2nd Edition. ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Notes Rating Unit Forward Supply Voltage VCC 6 V Reverse Supply Voltage VRCC –0.5 V Forward Output Voltage VIOUT 25 V Reverse Output Voltage VRIOUT –0.5 V Output Source Current IOUT(Source) VIOUT to GND 3 mA Output Sink Current IOUT(Sink) Minimum pull-up resistor of 500 Ω, from VCC to VIOUT 10 mA Nominal Operating Ambient Temperature TOP Range E –40 to 85 °C Range K –40 to 125 °C Range L –40 to 150 °C Maximum Junction TJ(max) 165 °C Storage Temperature Tstg –65 to 165 °C SPECIFICATIONS THERMAL CHARACTERISTICS: May require derating at maximum conditions Characteristic Symbol Test Conditions [2] Value Unit Package Thermal Resistance RθJA Mounted on the Allegro evaluation board with 2800 mm2 (1400 mm2 on component side and 1400 mm2 on opposite side) of 4 oz. copper connected to the primary leadframe and with thermal vias connecting the copper layers. Performance is based on current flowing through the primary leadframe and includes the power consumed by the PCB. 7 °C/W 2 Additional thermal information available on the Allegro website. TYPICAL OVERCURRENT CAPABILITIES [3][4] Characteristic Symbol Notes Rating Unit Overcurrent IPOC TA = 25°C, 1 second duration, 1% duty cycle 1200 A TA = 85°C, 1 second duration, 1% duty cycle 900 A TA = 150°C, 1 second duration, 1% duty cycle 600 A 3 Test was done with Allegro evaluation board. The maximum allowed current is limited by TJ(max) only. 4 For more overcurrent profiles, please see FAQ on the Allegro website, www.allegromicro.com. |
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