Three-phase isolator MOSFET driver replaces relays
In safety-critical applications, motor isolation is a requirement which in most cases is met by discrete circuits or mechanical relays. Allegro’s A2-SIL products offer a beneficial alternative and ease ASIL certification. The A6862 3-phase isolating driver can replace relay-controlled motor cut-off in safety-critical systems. Likewise, it can be used as reverse polarity protection and as battery separating switch.
The A6862 has three independent floating gate driver ports which enables the power MOSFETS to retain in the on- or off-state across the entire supply voltage range as well as under high phase voltage gradients. Representing The third generation of isolating drivers from Allegro, the A6862 is now equipped with additional single-input control mode, two independent enabling inputs to switch the device to energy saving mode and additional gate-source protection. The chip comes in a 16-pin TSSOP package with Exposed Pad for better heat removal.
More information: https://www.allegromicro.com/en/Products/Motor-Driver-And-Interface-ICs/High-and-Low-Side-Drivers/A6862.aspx
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
