Broadcom (HCPL-788J-000E) Isolation Amplifier, Optically, UL Recognised,

Isolation Amplifier, Optically, UL Recognised, 1 Amplifier, 3 mV, 3.75 kV, 4.5Vto 5.5V, SOICProduct OverviewThe HCPL-788J-000E is an Isolation Amplifier with short-circuit and overloaddetection makes motor phase current sensing compact, affordable andeasy-to-implement while satisfying worldwide safety and regulatory requirements.A larger analogue output voltage is created on the other side of this opticalisolation barrier. The output voltage is proportional to the motor current andcan be connected directly to a single-supply A/D converter. A digital over-rangeoutput (FAULT) and an analogue rectified output (ABSVAL) are also provided. Thewire OR-able over-range output (FAULT) is useful for quick detection of shortcircuit conditions on any of the motor phases. The wire-OR-able rectifiedoutput, simplifies measurement of motor load since it performs poly-phaserectification. Since the common-mode voltage swings several hundred volts intens of nanoseconds in modern electronic motor drives, this was designed toignore very high common-mode transient slew rates (10kV/µs).Output voltage directly compatible with A/D converters (0V to VREF)Fast (3µs) short circuit detection with transient fault rejectionAbsolute value signal output for overload detection1µV/°C Offset change vs. temperature25kV/µs Isolation transient immunityApplicationsMotor Drive & Control, Power Management, Sensing & Instrumentation, Test &Measurement, IndustrialProduct InformationNo. of Amplifiers: 1 AmplifierInput Offset Voltage: 3mVIsolation Voltage: 3.75kVSupply Voltage Range: 4.5V to 5.5VAmplifier Case Style: SOICNo. of Pins: 16PinsBandwidth: 30kHzOperating Temperature Min: -40°COperating Temperature Max: 85°C