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ACPL-782T-000E Datasheet(PDF) 1 Page - AVAGO TECHNOLOGIES LIMITED |
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ACPL-782T-000E Datasheet(HTML) 1 Page - AVAGO TECHNOLOGIES LIMITED |
1 / 18 page ACPL-782T Automotive Isolation Amplifier with R2Coupler™ Isolation Data Sheet CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Description The ACPL-782T isolation amplifier was designed for voltage and current sensing in electronic motor drives and battery system monitoring. In a typical implementa- tion, and motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the ACPL-782T. A differential output voltage is created on the other side of the ACPL-782T optical isolation barrier. This differential output voltage is proportional to the motor current and can be converted to a single-ended signal by using an op-amp as shown in the recommended ap- plication circuit. Since common-mode voltage swings of several hundred volts in tens of nanoseconds are common in modern switching inverter motor drives, the ACPL-782T was designed to ignore very high common- mode transient slew rates (of at least 10 kV/ Ps). The high CMR capability of the ACPL-782T isolation amplifier provides the precision and stability needed to ac- curately monitor motor current and DC rail voltage in high noise motor control environments, providing for smoother control(less“torqueripple”)invarioustypesofmotorcontrol applications. The product can also be used for general analog signal isolation applications requiring high accuracy, stability, and linearity under similarly severe noise conditions. The ACPL-782T utilizes sigma delta ( 6') analog-to-digital converter technology, chopper stabilized amplifiers, and a fully differential circuit topology. Together, these features deliver unequaled isolation- mode noise rejection, as well as excellent offset and gain accuracy and stability over time and temperature. This performance is delivered in a compact, auto-insert- able, industry standard 8-pin DIP package that meets worldwide regulatory safety standards. (A gull-wing surface mount option -300E is also available). Avago R2Coupler isolation products provide the rein- forced insulation and reliability needed for critical in auto- motive and high temperature industrial applications. Features x ±2% Gain Tolerance @ 25°C x 15 kV/Ps Common-Mode Rejection at VCM = 1000V x 30ppm/°C Gain Drift vs. Temperature x 0.3 mV Input Offset Voltage x 100 kHz Bandwidth x 0.004% Nonlinearity x Compact, Auto-Insertable Standard 8-pin DIP Package x Worldwide Safety Approval: – UL 1577 (3750 VRMS/1 min.) and – CSA – IEC 60747-5-5, DIN EN 60747-5-2(VDE 0884 Teil 2) x Qualified to AEC-Q100 Test Guidelines x Automotive Operating Temperature -40 to 125°C x Advanced Sigma-Delta (6') A/D Converter Technology x Fully Differential Circuit Topology Applications x Automotive Motor Inverter Current/Voltage Sensing x Automotive AC/DC and DC/DC converter Current/ Voltage sensing x Automotive Battery ECU x Automotive Motor Phase Current Sensing x Isolation Interface for Temperature Sensing x General Purpose Current Sensing and Monitoring Functional Diagram Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product The connection of a 0.1 PF bypass capacitor between pins 1 and 4, pins 5 and 8 is recommended. 1 2 3 4 8 7 6 5 IDD1 VDD1 VIN+ VIN- GND1 IDD2 VDD2 VOUT+ VOUT- GND2 + - + - SHIELD |
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