Data Sheet ACNT-H79B, ACNT-H79A, ACNT-H790 Optical Isolation Amplifier in 15-mm Stretched SO-8 Package Description Features The Broadcom ACNT-H79B/H79A/H790 isolation 0.5% gain accuracy (ACNT-H79B) amplifiers are designed for current and voltage sensing in 50 ppm/C low gain drift electronic power converters for applications including motor 0.6-mV input offset voltage drives and renewable energy systems. In a typical motor 0.05% excellent linearity drive implementation, current flows through an external 60-dB SNR resistor and the resulting analog voltage drop is sensed by 200-kHz wide bandwidth (Typ) the isolation amplifier. A differential output voltage that is 40C to +105C operating temperature range proportional to the current is created on the other side of the Advanced sigma-delta ( - ) A/D modulation technology optical isolation barrier. 15-mm stretched SO-8 package For general applications, the ACNT-H79A (1% gain 0.5-mm distance through insulation (DTI) tolerance) and the ACNT-H790 (3% gain tolerance) are 15-kV/s common-mode transient immunity recommended. For high-precision applications, the Safety and regulatory approvals: ACNT-H79B (0.5% gain tolerance) can be used. The IEC/EN/DIN EN 60747-5-5: 2262Vpeak working ACNT-H79B/H79A/H790 offers wide creepage and insulation voltage clearance with a high common-mode transient immunity of UL 1577: 7500Vrms/1min double protection rating 15 kV/s. These features allow the ACNT-H79B/H79A/ CSA: Component Acceptance Notice 5 H790 to provide the precision and stability needed to accurately monitor motor current in high noise motor control Applications environments, providing for smoother control (less torque Current/voltage sensing in AC/servo motor drives ripple) in various types of motor control applications. The Mid-voltage drives ACNT-H79B/H79A/H790 operates from a single 5V supply Solar inverters, wind turbine inverters and provides excellent linearity and dynamic performance of 60dB SNR. With 200 kHz bandwidth, 1.6-s fast Industrial process control response time, the ACNT-H79B/H79A/H790 captures General-purpose analog signal isolation transients in short circuit and overload conditions. Hall effect current transducer replacements Combined with superior optical coupling technology, the CAUTION It is advised that normal static precautions be ACNT-H79B/H79A/H790 uses sigma-delta ( - ) taken in handling and assembly of this analog-to-digital modulation, chopper stabilized amplifiers, component to prevent damage and/or and a fully differential circuit topology to provide unequaled degradation that may be induced by ESD. The isolation-mode noise rejection, low offset, high gain components featured in this data sheet are not accuracy and stability. This performance is delivered in a to be used in military or aerospace applications compact, auto-insertable 15 mm Stretched SO-8 package or environments. that meets worldwide regulatory safety standards. Broadcom AV02-4715EN May 15, 2020ACNT-H79B, ACNT-H79A, ACNT-H790 Data Sheet Optical Isolation Amplifier in 15-mm Stretched SO-8 Package Functional Diagram Figure 1: Functional Diagram I I DD1 DD2 V DD1 8 1 V DD2 V IN+ 2 + 7 V OUT+ + - V IN- 3 - 6 V OUT- 4 GND1 5 GND2 SHIELD NOTE: A 0.1 F bypass capacitor mus be connected between pins 1 and 4 and between pins 5 and 8. Table 1. Pin Description Pin Number Symbol Description 1 VDD1 Supply voltage for input side (4.5V to 5.5V), relative to GND1 2 VIN+ Positive input (200 mV recommended) 3 VIN Negative input (normally connected to GND1) 4 GND1 Input side ground 5 GND2 Output side ground 6 VOUT Negative output 7 VOUT+ Positive output 8 VDD2 Supply voltage for output side (3V to 5.5V), relative to GND2 Table 2. Ordering Information ACNT-H79B/H79A/H790 is UL recognized with 7500 Vrms/1 minute rating per UL 1577. Option IEC/EN/DIN Part Number (RoHS Compliant) Package Surface Mount Tape and Reel EN 60747-5-5 Quantity ACNT-H790 -000E 15-mm Stretched SO-8 X X 80 per tube ACNT-H79A -500E X X X 1000 per reel ACNT-H79B To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry. Example: ACNT-H79A-500E to order product of Surface Mount package in Tape and Reel packaging with IEC/EN/DIN EN 60747-5-5 Safety Approval and RoHS compliance. Broadcom AV02-4715EN 2