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ISL6113IRZA Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL6113IRZA Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 24 page 1 ® Dual Slot PCI-E Hot Plug Controllers The ISL6113, ISL6114 both target the PCI-Express Add-in card hot swap application. Together with a pair of N-Channel and P-Channel MOSFETs, and two sense resistors per slot, either provides compliant hot plug power control to any combination of two PCI-Express X1, X4, X8 or X16 slots. The ISL6113, ISL6114 feature a programmable current regulated (CR) maximum level for a programmable period to each voltage load so that both fault isolation protection and imperviousness to electrical transients are provided. For each +12V supply, the CR level is set by a resistor value depending on the needs of the PCI-Express connector (X1, X4, X8 or X16) to be powered. This resistor is a sub-ohm standard value current sense resistor one for each slot and the voltage across this resistor is compared to a 50mV reference providing a nominal CR protection level adequately above the specific slot maximum limits. The 3.3V supply uses a 15m Ω sense resistor compared to a 50mV reference to provide 3.3A of maximum regulated current to all connector sizes. The 3.3VAUX is internally monitored and controlled to provide a nominal maximum of 1A of AUX output current. The CR period for each slot is set by a separate external capacitor on the associated CFILTER pin. Once the CR period has expired, the IC then quickly turns off its associated FETs thus unloading the faulted card from the supply voltage rails. A nominal 3.3V must always be present on the AUXI pin for proper IC bias; this should be the 3.3VAUX supply if used, if not the AUXI pin is tied directly to the 3VMAIN supply. Both ICs employ a card presence detection input that disables the MAIN and AUX enabling inputs if it is not pulled low. Output voltage monitoring with both PCI-E Reset Not and Power Good Not reporting along with OC Fault reporting are provided. Whereas the ISL6113 has the same GATE drive and response characteristics as the ISL6112, the ISL6114 has a lower turn-on GATE drive current allowing for the use of smaller compensation capacitors and thus much faster response to Way Overcurrent (WOC) conditions. Additionally, the ISL6114 does not turn-on with the CR feature invoked as do the ISL6112, ISL6113 allowing for shorter CR programmed periods.The ISL6113, ISL6114 are footprint compatible for all common pins, but not entirely function compatible with the ISL6112’s QFN package as there are I/O differences. Features • Dual PCI-E Slot Hot Swap Power Control and Distribution • Highest Accuracy External RSENSE Current Monitoring On Main Supplies • Programmable Current Regulation Protection Function for X1, X4, X8, X16 Connectors • Programmable Current Regulation Duration • Programmable In-rush Protection During Turn-On • Latch-off or Retry Modes After Failure • Pb-free (RoHS Compliant) Applications • PCI-Express Servers • Power Supply Distribution and Control • Hot Swap/Electronic Breaker Circuits • Network Hubs, Routers, Switches • Hot Swap Bays, Cards and Modules FIGURE 1. TYPICAL ISL6113, ISL6114 BLOCK DIAGRAM APPLICATION IMPLEMENTATION 3VGATEA 3VINA 12VGATEA 12VINA ISL6113, ISL6114 3VSENSEA VSTBYB VAUXA 12VSENSEA 3VGATEB 3VINB 12VGATEB 12VINB 3SENSEB VAUXB 12VSENSEB PRSNTA PRSNTB FORONA FORONB AUXENB ONB ONA GPI_A0 GPI_BO GPO_A0 GPO_B0 FAULTA FAULTB PWRGDA PWRGDB CFILTERA PERSTB PERSTA GND 12VOUTA 3VOUTA 3VOUTB 12VOUTB CFILTERB VSTBYA IF 3.3VAUX NOT IMPLEMENTED AUXENA IF 3.3VAUX NOT IMPLEMENTED FN6457.0 ISL6113, ISL6114 Data Sheet September 25, 2007 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. FN6457.0 |
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