Avago's Extended Temperature 2.5A Gate Drive Optocouplers for Industrial Apps

Avago’s ACPL-312U provides reinforced insulation and reliability that delivers safe signal isolation which is critical in automotive and high temperature industrial applications. The low-power ACPL-312U optocoupler series has been designed with under voltage lock-out protection (UVLO), high common mode rejection (CMR) performance and high speed response to improve efficiency. Moreover, it is developed with a double wire bonding process to provide added redundancy and reduce wire breakage during high temperature operation. Additionally, the low 5mA maximum supply current of this series of optocouplers allows bootstrap operation and reduces IC power consumption. As a result, costly isolated power supplies or DC-to-DC converters can be reduced when these gate drive optocouplers are used.



Avago’s series of 2.5A gate drive optocouplers contain an AIGaAs LED, which is optically coupled to an integrated circuit with a power output stage. The high operating voltage range of the output stage provides the drive voltages required by gate controlled devices. Moreover, the voltage and current supplied by these optocouplers are ideal for directly driving IGBTs with ratings up to 1200 V/100 Amps. For IGBTs with higher ratings, this series of optocouplers can be used to drive a discrete power stage which drives the IGBT gate.



The ACPL-312U series of optocouplers come in a standard DIP-8 package with a creepage of 7.4 mm and clearance of 7.1 mm. These DIP-8 packages are compliant to most industrial safety standards such as IEC/EN/DIN EN 60747-5-5, UL 1577 and CSA.