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ISL6565ACBZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL6565ACBZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 28 page 1 ® FN9135.3 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003-2004. All Rights Reserved. Dynamic VID® is a registered trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. ISL6565A, ISL6565B Multi-Phase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application The ISL6565A, ISL6565B controls microprocessor core voltage regulation by driving up to 3 synchronous-rectified buck channels in parallel. Multi-phase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. The difference between the ISL6565A and the ISL6565B is that the ISL6565A utilizes rDS(ON) current sensing, while the ISL6565B utilizes DCR current sensing for each phase. These cost and space saving methods of current sensing are used for adaptive voltage positioning (droop), channel- current balancing, and overcurrent protection. To ensure the accuracy of droop, a programmable internal temperature compensation function is implemented to compensate the effect of rDS(ON) and DCR temperature sensitivity. A unity gain, differential amplifier is provided for remote voltage sensing. Any potential difference between remote and local grounds is eliminated using the remote-sense amplifier. The precision threshold-sensitive enable input is available to accurately coordinate the start up of the ISL6565A, ISL6565B with Intersil MOSFET driver ICs. Dynamic-VID™ technology allows seamless on-the-fly VID changes. The offset pin allows accurate voltage offset settings that are independent of VID setting. Features • Multi-Phase Power Conversion - 2 or 3 Phase Operation • Precision Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy Over Temperature and Life - Adjustable Reference-Voltage Offset • Precision rDS(ON) or DCR Current Sensing - Integrated Programmable Temperature Compensation - Accurate Load-Line Programming - Accurate Channel-Current Balancing - Low-Cost, Lossless Current Sensing • Input Voltage: 12V or 5V Bias • Microprocessor Voltage Identification Input - Dynamic VID® Technology - 6-Bit VID Input - 0.8375V to 1.600V in 12.5mV Steps • Threshold Enable Function for Precision Sequencing • Overcurrent Protection • Overvoltage Protection • Digital Soft-Start • Operation Frequency up to 1.5MHz per Phase • QFN Package - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline - Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile • Pb-free Available Ordering Information PART NUMBER TEMP. (°C) PACKAGE PKG. DWG. # ISL6565ACB 0 to 105 28 Ld SOIC M28.3 ISL6565ACBZ (Note) 0 to 105 28 Ld SOIC (Pb-free) M28.3 ISL6565ACR 0 to 105 28 Ld 5x5 QFN L28.5x5 ISL6565ACRZ (Note) 0 to 105 28 Ld 5x5 QFN (Pb-free) L28.5x5 ISL6565ACV 0 to 105 28 Ld TSSOP M28.173 ISL6565ACVZ (Note) 0 to 105 28 Ld TSSOP (Pb-free) M28.173 ISL6565BCB 0 to 105 28 Ld SOIC M28.3 ISL6565BCBZ (Note) 0 to 105 28 Ld SOIC (Pb-free) M28.3 ISL6565BCR 0 to 105 28 Ld 5x5 QFN L28.5x5 ISL6565BCRZ (Note) 0 to 105 28 Ld 5x5 QFN (Pb-free) L28.5x5 ISL6565BCV 0 to 105 28 Ld TSSOP M28.173 ISL6565BCVZ (Note) 0 to 105 28 Ld TSSOP (Pb-free) M28.173 NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J Std-020B. Data Sheet September 2004 |
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