Digital output isolation amplifiers target power converters

July 06, 2016 // By Julien Happich
Toshiba Electronics Europe has released two new digital output isolation amplifiers for current and voltage sensing in power converters. The TLP7830 and TLP7930 achieve high accuracy (linearity of 4 LSB) through the inclusion of a delta sigma analogue-to-digital converter.

TLP7830 and TLP7930 provide a guaranteed Common Mode Transient Immunity of 20kV/us (typical at VCM=1kV, Ta=25˚C), and this enables stable operation in electrically noisy environment ensuring they are particularly suited for motor control applications. The optical barrier guarantees an isolation voltage of 5000Vrms (minimum). The devices have been designed to support a wide operating temperature range of -40˚C to +105˚C.

 A choice of two package types are available: TLP7930 is supplied in an industry-standard DIP8 package and the TLP7830 is available in a new compact SO8L package, which takes up 30% less board space and features a 40% lower profile.

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