+48V/-48V Hot-Swap Applications with TPS23xx Hot-Swap Controllers

The rapid development of telecommunication and networked systems has accelerated the growth of products requiring the hot-plug capability demanded by systems with a continuous uninterrupted power-on requirement. There are many hot-swap or hot-plug power management solutions available in the market today; however, the trick is picking the one that best suits the application's needs. Many applications involve low voltages, but 48 V is the standard back-plane voltage in most telecommunications systems. The TPS23xx series of hot-swap controllers, originally designed for low voltage applications, can also be applied to very high voltage systems if used appropriately. This report discusses how to use these devices to control hot-swap events in high voltage environments such as ?48-V systems.