Date: 11/10/2008

Quad hot-swap controller with integrated I²C voltage and current monitor

Maxim Integrated Products introduced the MAX5961, new quad hot-swap controller for 0 to 16V back-planes. This device allows line cards to be safely inserted and removed from a live back-plane without causing glitches on the system power-supply rail.

The key features of the MAX5961 are as follows.

1. It is rated for 0 to 16V inputs, and can withstand transients or inductive spikes up to 30V.
2. Is a quad hot-swap controller with integrated I²C voltage and current monitor
3. Integrates a 10-bit ADC that is multiplexed to enable voltage and current monitoring on each channel for high-availability systems.
4. Can stores 5ms of past voltage and current measurements, which are available through an I²C interface, to ease system debugging & analysis.
5. Provides controlled inrush current at startup, as well as two levels of overcurrent protection after startup.
6. Five digital comparators per hot-swap channel implement overcurrent warning, two levels of over-voltage detection, and two levels of under-voltage detection.
7. Has an alert outputs to indicate under-voltage, over-voltage, and overcurrent faults.
8. Can be configured for operation as four independent hot-swap controllers, as two hot-swap controllers operating in pairs, or as a group of four hot-swap controllers.
9. It can also be configured for latched-off or auto-retry fault management.
10. Specified over the -40°C to +85°C extended temperature range.
11. Apllications include networking, base-station, storage, computer, and server line cards.

Package: 48-pin TQFN package with an exposed pad
Size: 7mm x 7mm
Price: $6.38 (1000-up, FOB USA).

For more information, visit: www.maxim-ic.com