DC429A

DC429A demonstration circuit is a Hot Swap™ controller designed for dual 48V battery feeds in telecom subsystems. This demo board is optimized for 2A maximum operating current, making it ideal for loads of 25W to 75W. The LT4250’s circuit breaker is immune from transient currents arising from load dump, voltage spikes, and input steps. Provision is made for interfacing the LT4250’s “power good” output either directly or via an opto isolator to a power converter, allowing for inclusion of a common mode filter block. The Connection Sense terminal helps eliminate uncontrolled arcing and associated damage to the backplane connector in real-world operating environments.

• Vin range (operating) range from 43V to 70V
• UVLO of –38.5V off, –43V on
• 450mA programmed inrush current (100µF)