数据搜索系统,热门电子元器件搜索 |
|
ISL6564A 数据表(PDF) 1 Page - Intersil Corporation |
|
ISL6564A 数据表(HTML) 1 Page - Intersil Corporation |
1 / 28 page 1 ® FN6285.1 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. 2006-2007. All Rights Reserved. Dynamic VID™ is a trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. ISL6564A Multiphase PWM Controller with Linear 6-Bit DAC Capable of Precision rDS(ON) or DCR Differential Current Sensing The ISL6564A is a Multiphase PWM controller which controls microprocessor core voltage regulation by driving up to 4 synchronous-rectified buck channels. It features a high bandwidth control loop to provide optimal response to the load transients. With switching frequency up to 1.5MHz per phase, the ISL6564A based voltage regulator requires minimum components and PCB area in DC/DC converter application. The ISL6564A senses current by utilizing patented techniques to measure the voltage across the on resistance, rDS(ON), of the lower MOSFETs or DCR of the output inductor during their conduction intervals. Current sensing provides the needed signals for precision droop, channel- current balancing, and overcurrent protection. A unity gain, differential amplifier is provided for remote voltage sensing. Any potential difference between remote and local grounds can be completely eliminated using the remote-sense amplifier. Eliminating ground differences improves regulation and protection accuracy. The threshold- sensitive enable input is available to accurately coordinate the start up of the ISL6564A with any other voltage rail. Dynamic-VID™ technology allows seamless on-the-fly VID changes. The offset pin allows accurate voltage offset settings that are independent of VID setting. The ISL6564A uses a 5V bias and has a built-in shunt regulator to allow 12V bias using only a small external limiting resistor. Features • Precision Multiphase Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy - Adjustable Reference-Voltage Offset • Precision rDS(ON) or DCR Current Sensing - Accurate Load-Line Programming - Accurate Channel-Current Balancing - Differential Current Sense - Low-Cost, Lossless Current Sensing • Internal Shunt Regulator for 5V or 12V Biasing • Microprocessor Voltage Identification Input - Self Clocked Dynamic VID™ Control Technology - 6-Bit VID Input - 0.525V to 1.300V in 12.5mV Steps • Threshold-Sensitive Enable Function for Power Sequencing Control • Overcurrent Protection • Overvoltage Protection - No Additional External Components Needed - OVP Pin to Drive Crowbar Device • 1, 2, 3, or 4 Phase Operation • Up to 1.5MHz Per Phase Operation (>6MHz Ripple) • QFN Package - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline - QFN Near Chip Scale Package Footprint; Improves PCB Efficiency, Thinner in Profile • Pb-Free Plus Anneal Available (RoHS Compliant) Ordering Information PART NUMBER PART MARKING TEMP. (°C) PACKAGE PKG. DWG. # ISL6564ACRZ* (Note) ISL6564 ACRZ 0 to +70 40 Ld 6x6 QFN (Pb-free) L40.6x6 ISL6564AIRZ* (Note) ISL6564 AIRZ -40 to +85 40 Ld 6x6 QFN (Pb-free) L40.6x6 *Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and 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-020. Data Sheet March 20, 2007 |
类似零件编号 - ISL6564A |
|
类似说明 - ISL6564A |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |