News & Events
Intersil First to Deliver Dual Hot Plug Power Controller for New PCI Express Bus
-- N-channel MOSFET control and fast-response protection for both 12-V and 3.3-V power buses
MILPITAS, CA, March 26, 2003 Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog and wireless networking solutions, today announced the industrys first dual-rail hot-swap controller targeted primarily for the new PCI Express bus. The new Endura ISL6161 allows boards to be safely inserted and removed from live backplanes. This new IC controls both 12-V and 3.3-V power buses, offering programmability and fast-response protection. In addition to PCI Express, the ISL6161 is also well suited for general power distribution control and other Hot-Swap and Hot Plug applications.
The ISL6161 dual-rail controller offers a rich feature set that includes: under-voltage monitoring and power good notification, programmable over-current detection and fault isolation, programmable current regulation, programmable current limit time to latch off, adjustable turn on ramp for soft-start and fast one-microsecond response to a dead short. This dual controller offers customers a high degree of integration that results in savings in board space and balance of materials costs. Complete reference designs and evaluation boards are available.
Intersils IntelliTrip Protection Technology
The ISL6161 provides Intersils IntelliTrip dual-level current limiting technology for precise current control and protection. For over-current (OC) protection, the voltage across either sense resistor is monitored and compared to its user-programmed current-regulation (CR) voltage threshold value. When the voltage exceeds the CR threshold, the controller enters the current regulation mode, holding the current at the programmed level until either the OC event passes, in which case the MOSFET is again fully enhanced and the C(TIM) capacitor is discharged, or the programmed time out period expires, in which case both the FETs are latched off. The IC responds to a severe OC load (>3X programmed current limit) by turning off the FET in less than 1 us. The controller is reset on the rising edge on the ENABLE-BAR pin and is turned on by the ENABLE-BAR pin being driven low.
ISL6161 Feature Summary
- Dual-rail control and protection 12 V and 3.3 V
- Over-current fault isolation
- Programmable current regulation level
- Programmable current regulation time to latch-off
- Charge pump to drive N-channel MOSFETs
- Over-current latch indicator (monitor C(TIM))
- Adjustable turn-on ramp
- Protection during turn on
- Two levels of over-current detection provide fast response to varying fault conditions
- 1 us response time to dead short
- 14-lead SOIC package
The ISL6161 is available now. The price, based on one thousand piece quantities, for the ISL6161CB in the 14-lead SOIC package is $2.70 each.
Intersil leads the industry with the most cost effective hot plug/hot swap controller and DC-DC converter solutions. See a complete listing of Intersils hot plug/hot swap controllers at: http://www.intersil.com/design/hotplug1/index.asp About Intersil
Intersil Corporation is a global semiconductor leader in the design and manufacture of high performance analog and wireless networking solutions. Intersil’s product portfolios address four fast growing markets – flat panel displays, optical storage (CD and DVD recordable), power management and wireless networking. Intersil brings added customer value in providing complete silicon, software and reference design solutions to new products that enhance the computing experience for people wherever they live, work or travel. For more information about Intersil or to find out how to become a member of our winning team, visit the company's web site and career page at: www.intersil.com
Endura and IntelliTrip are trademarks of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
