HCPL-7851

ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557 1 Hermetically Sealed Analog Isolation Amplifier Data Sheet Description Features The HCPL-7850, HCPL-7851, and ACPL-785E are isolation amplifiers that provide accurate, electrically isolated and amplified representations of voltage and current. When used with a shunt resistor to monitor the motor phase current in a high-speed motor drive, the device offers superior reliability compared with the traditional solutions such as current transformers and Hall-effect sensors. These devices consist of a sigma-delta analog-to-digital converter optically coupled to a digital-to-analog converter in a hermetically sealed package. The products are capable of operation and storage over the full military temperature range and can be purchased as a commercial product (HCPL-7850), with full MIL-PRF-38534 Class H testing (HCPL-7851), with MIL-PRF-38534 Class E testing (ACPL-785E) (Class K with exceptions) or from the DLA Standard Microcircuit Drawing (SMD) 5962-97557. Details of the Class E program exceptions are listed here:  1. Nondestructive Bond Pull, Test method 2023 of MIL-STD-883 in screening is not required. 2. Particle Impact Noise Detection (PIND), Test method 2020 of MIL-STD-883 in device screening and group C testing is not required.           Performance guaranteed over full military temperature range: –55°C to +125°C Manufactured and tested on a MIL-PRF-38534 certified line Hermetically sealed packages Dual marked with device part number and DLA Standard Microcircuit Drawing (SMD) QML-38534, Class H and Class E HCPL-7840 function compatibility High common-mode rejection (CMR): 8 kV/μs at VCM = 1000V 5% gain tolerance 0.1% nonlinearity Low offset voltage and offset temperature coefficient 100 kHz bandwidth Applications 3. Die Shear Strength, Test method 2019 of MIL-STD-883 in group B testing is not required. 4. Internal Water Vapor Content, Test method 1018 of MIL-STD-883 in group C is not required. 5. Scanning Electron Microscope (SEM) inspection, Test method 2018 of MIL-STD-883 in element evaluation is not required.      Industrial, military, and space systems High reliability systems Harsh industrial environments Transportation, medical, and life critical systems General-purpose analog signal isolation CAUTION 1. See Selection Guide – Lead Configuration Options for available extensions. Broadcom -1- 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. ACPL-785E, HCPL-7850, HCPL-7851, 5962-97557 Data Sheet Schematic Diagram Schematic Diagram IDD1 IDD2 VDD1 1 VIN+ 2 + + 7 VOUT+ VIN– 3 – – 6 VOUT– GND1 4 8 VDD2 With common-mode rejection of 8 kV/μs, these devices are suitable for noisy electrical environments such as those generated by the high switching rates of power IGBTs. 5 GND2 SHIELD NOTE Superior performance in design-critical specifications, such as common-mode rejection, offset voltage, nonlinearity, and operating temperature, makes the HCPL-7850, HCPL-7851 and ACPL-785E excellent choices for designing reliable products such as motor controllers and inverters. Low offset voltage together with a low offset voltage temperature coefficient permits accurate use of auto-calibration techniques. A 0.1-μF bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8. Gain tolerance of 5% with 0.1% nonlinearity further provide the performance necessary for accurate feedback and control. Selection Guide – Lead Configuration Options Part Number and Options Commercial HCPL-7850 MIL-PRF-38534, Class H HCPL-7851 MIL-PRF-38534, Class E ACPL-785E Standard Lead Finish Gold Plate Gold Platea Solder Dippedb Option #200 Option -200 Butt Cut/Gold Platea Option #100 Option -100 Gull Wing/Solderedb Option #300 Option -300 Prescript for all below 5962- 5962- Gold Platea 9755701HPC 9755701EPC Solder Dippedb 9755701HPA 9755701EPA Butt Cut/Gold Platea 9755701HYC 9755701EYC Butt Cut/Solderedb 9755701HYA 9755701EYA Gull Wing/Solderedb 9755701HXA 9755701EXA a SMD Part Number a. Gold Plate lead finish: Maximum gold thickness of leads is