Transzorb for MCP73831 USB LiIon Charger?
The datasheet of recommends a transzorb on the USB power input (VDD). Section 126.96.36.199.
Absolute maximum ratings for VDD is listed as 7.0V plus 4kV human body ESD and 400V machine model ESD. On USB Vbus can be 5.1V, so what is a good transzorb device to use?
Note: Most tranzorb/TVS/varistor devices that allows 5.1V, can be at 7V before the shunt current reaches 1mA and will specify a clamping voltage of 15-35V for higher currents.
post edited by rolfo - 2016/03/19 01:50:20