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ISL6605CRZA Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL6605CRZA Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 9 page 1 ® FN9091.7 ISL6605 Synchronous Rectified MOSFET Driver The ISL6605 is a high frequency, MOSFET driver optimized to drive two N-Channel power MOSFETs in a synchronous- rectified buck converter topology. This driver combined with an Intersil HIP63xx or ISL65xx Multi-Phase Buck PWM controller forms a complete single-stage core-voltage regulator solution with high efficiency performance at high switching frequency for advanced microprocessors. The IC is biased by a single low voltage supply (5V) and minimizes low driver switching losses for high MOSFET gate capacitance and high switching frequency applications. Each driver is capable of driving a 3000pF load with an 8ns propagation delay and less than 10ns transition time. This product implements bootstrapping on the upper gate with an internal bootstrap Schottky diode, reducing implementation cost, complexity, and allowing the use of higher performance, cost effective N-Channel MOSFETs. Adaptive shoot-through protection is integrated to prevent both MOSFETs from conducting simultaneously. The ISL6605 features 4A typical sink current for the lower gate driver, which is capable of holding the lower MOSFET gate during the Phase node rising edge to prevent shoot- through power loss caused by the high dv/dt of the Phase node. The ISL6605 also features a Three-State PWM input that, working together with Intersil multi-phase PWM controllers, will prevent a negative transient on the output voltage when the output is being shut down. This feature eliminates the Schottky diode that is usually seen in a microprocessor power system for protecting the microprocessor from reversed-output-voltage damage. Features • Drives Two N-Channel MOSFETs • Adaptive Shoot-Through Protection •0.4 Ω On-Resistance and 4A Sink Current Capability • Supports High Switching Frequency - Fast Output Rise and Fall Time - Ultra Low Propagation Delay 8ns • Three-State PWM Input for Power Stage Shutdown • Internal Bootstrap Schottky Diode • Low Bias Supply Current (5V, 30µA) • Enable Input • QFN Package - Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat No Leads-Product Outline. - Near Chip-Scale Package Footprint; Improves PCB Efficiency and Thinner in Profile. • Pb-Free Plus Anneal Available (RoHS Compliant) Applications • Core Voltage Supplies for Intel® and AMD® Microprocessors • High Frequency Low Profile DC/DC Converters • High Current Low Voltage DC/DC Converters • Synchronous Rectification for Isolated Power Supplies Related Literature • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” Pinouts ISL6605 (8 LD SOIC) TOP VIEW ISL6605 (8 LD QFN) TOP VIEW UGATE BOOT PWM GND 1 2 3 4 8 7 6 5 PHASE EN VCC LGATE BOOT EN VCC PWM 7 8 4 3 1 2 6 5 6 Data Sheet May 9, 2006 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. 2002-2006. All Rights Reserved Intel® is a registered trademark of Intel Corporation. AMD® is a registered trademark of Advanced Micro Devices, Inc. All other trademarks mentioned are the property of their respective owners. FOR NEW DESI GNS, INTE RSIL RECO MME NDS DRO P-IN ENHA NCED PROD UCT - ISL6 609 |
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