Hot-Swap Controller Ensures Proper Power-Up

April 28, 2003
Available in an MSOP package, the LTC4212 Hot Swap controller disconnects the power supply if a dc-dc converter fails to enter into regulation within a programmable period. Its Power Good input can be tied directly to a dc-dc converter's PGOOD...

Available in an MSOP package, the LTC4212 Hot Swap controller disconnects the power supply if a dc-dc converter fails to enter into regulation within a programmable period. Its Power Good input can be tied directly to a dc-dc converter's PGOOD output or to a power-supply monitor's Reset output. This enables several dc-dc converters to be monitored at the same time for proper power-up and operation. After normal power-up, it can be configured to trip the circuit breaker if any of the converters exit regulation for longer than a programmable delay. An internal high-side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.5 to 16.5 V. Two on-chip current comparators provide an enhanced dual-level circuit breaker function by differentiating between slight overcurrent faults or catastrophic short-circuit conditions. The LTC4212 provides a programmable soft-start with inrush current limiting during the start-up period. Also, no external gate is required. Available in a 10-pin MSOP, the LTC4212 can be configured to either latch-off or auto-retry after a fault condition. Pricing starts at $2.55 each in 1000-unit quantities.

Linear Technology Corp. www.linear.com; (408) 432-1900

Sponsored Recommendations

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

How to Quickly Leverage Bluetooth AoA and AoD for Indoor Logistics Tracking

March 27, 2024
Real-time asset tracking is an important aspect of Industry 4.0. Various technologies are available for deploying Real-Time Location.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!