DC1627A-B

DC1627A-B demonstration circuit is intended to display the Hot Swap™ functionality of the LTC®4226CUD-2 wide operating range dual Hot Swap controller. The DC1627A has two independent circuits, each for two rails. The circuit placed on the upper board area is for a high current load. The first channel of the upper board circuit operates with a 10A maximum in the +12V rail while the second channel operates with a 5A maximum in the +5V rail. Provision is made for the installation of several MOSFET packages to test the LTC4226's performance during a short time with the larger current. There are two jumpers: one for the current limit multiplicity selection and the other one for overvoltage protection configuration. The circuit located on the lower board area is a special compact circuit for the Apple FireWire/IEEE 1394 power distribution. Both channels of this circuit operate with a 1.25A maximum current in the 12V rails.

• Automatically retries after a 0.5 second delay