News & Events
Intersil Adds Two New Low-Voltage Controllers to Its Hot Swap Portfolio
-- New Intersil Endura hot swap controllers offer space and cost savings with full features~-- Single rail power distribution controllers for low-voltage rails ensure critical hot-swap control
MILPITAS, CA, February 10, 2003 Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog and wireless networking solutions, today announced the new Endura ISL6117 and ISL6120 low-voltage hot-swap controllers that allow boards to be safely inserted and removed from live backplanes. The ISL6117 controls a 3.3-V rail and the ISL6120 controls a 2.5-V rail. Both ICs are targeted for use on server motherboards for low-voltage hot-swap power control and are offered in the space-saving 8-lead SOIC package. Intersil leads the industry with the most cost effective hot plug/hot swap controller and DC-DC converter solutions.
The ISL6117 and ISL61120 ICs join our previously released ISL6115 (12-V) and ISL6116 (5-V) hot swap controllers to offer our customers a full range of backplane power control, said Tommy Sokola, marketing manager for Intersils Hot Swap Power Control Products. The new low-voltage ISL6117 and ISL6120 single rail power distribution controllers offer the full complement of features needed for critical server and storage systems applications. All of our server hot swap power control solutions provide our customers high reliability along with space, component count and cost savings.
More than just programmable circuit breakers, the ISL6117 and ISL6120 controllers offer 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 sub-microsecond response to a dead short. Although designed primarily for high side switch control, both ICs can also be used in a low side configuration for control of much higher voltage potentials such as 48 V.
Both products offer customers a high degree of integration that results in savings in board space and balance of materials costs. In addition, customers benefit from design and application flexibility, which yields lower manufacturing costs. Complete reference designs and evaluation boards are available.
ICs Provide Intersils IntelliTrip Protection Technology
The ISL6117 and ISL6120 provide Intersils IntelliTrip dual-level current limiting technology for precise current control and protection. For over-current (OC) protection, the voltage across the sense resistor is monitored and compared to the 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 the FET is latched off.
The IC responds to a severe OC load (voltage across sense resistor >150 mV over the OC voltage threshold set point) by turning off the FET in about 10 us. It then slowly ramps up the gate voltage to turn on the FET until it is fully turned on or the CR level is reached. If the CR level is once again reached, it goes into current regulation for the time out period and then latches off.
ISL6117 and ISL6120 Feature Summary
- ISL6117 for +3.3 V
- ISL6120 for +2.5 V
- Over-current fault isolation
- Programmable current regulation level
- Programmable current regulation time to latch-off
- Under-voltage and over-current latch indicators
- 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
The ISL6117 and ISL6120 are available now. The price, based on one thousand piece quantities for the ISL6117CB and ISL6120CB, is $1.50 each. Both ICs are 8-lead SOIC packages with a 0°C to +85°C temperature range. 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.
