DATASHEET ISL6614A FN9160 Rev.4.00 Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP May 5, 2008 The ISL6614A integrates two ISL6613A MOSFET drivers and Features is specifically designed to drive two Channel MOSFETs in a Pin-to-pin Compatible with HIP6602 SOIC Family synchronous rectified buck converter topology. These drivers combined with HIP63xx or ISL65xx Multi-Phase Buck PWM Quad N-Channel MOSFET Drives for Two Synchronous controllers and N-Channel MOSFETs form complete core Rectified Bridges voltage regulator solutions for advanced microprocessors. Advanced Adaptive Zero Shoot-Through Protection The ISL6614A drives both the upper and lower gates - Body Diode Detection simultaneously over a range from 5V to 12V. This drive - Auto-zero of r Conduction Offset Effect DS(ON) voltage provides the flexibility necessary to optimize Adjustable Gate Voltage (5V to 12V) for Optimal Efficiency applications involving trade-offs between gate charge and Internal Bootstrap Schottky Diode conduction losses. Bootstrap Capacitor Overcharging Prevention An advanced adaptive zero shoot-through protection is integrated to prevent both the upper and lower MOSFETs Supports High Switching Frequency (up to 1MHz) from conducting simultaneously and to minimize the dead - 3A Sinking Current Capability time. These products add an overvoltage protection feature - Fast Rise/Fall Times and Low Propagation Delays operational before VCC exceeds its turn-on threshold, at Three-State PWM Input for Output Stage Shutdown which the PHASE node is connected to the gate of the low side MOSFET (LGATE). The output voltage of the converter Three-State PWM Input Hysteresis for Applications With is then limited by the threshold of the low side MOSFET, Power Sequencing Requirement which provides some protection to the microprocessor if the Pre-POR Overvoltage Protection upper MOSFET(s) is shorted during startup. VCC Undervoltage Protection The ISL6614A also features a three-state PWM input which, Expandable Bottom Copper Pad for Enhanced Heat working together with Intersils multi-phase PWM controllers, Sinking prevents a negative transient on the output voltage when the output is shut down. This feature eliminates the Schottky QFN Package: diode that is used in some systems for protecting the load - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat from reversed output voltage events. No Leads - Package Outline - Near Chip Scale Package Footprint, which Improves PCB Efficiency and has a Thinner Profile Pb-Free Plus Anneal Available (RoHS Compliant) Applications Core Regulators for Intel and AMD Microprocessors High Current DC/DC Converters High Frequency and High Efficiency VRM and VRD Related Literature Technical Brief TB363 Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Technical Brief 400 and 417 for Power Train Design, Layout Guidelines, and Feedback Compensation Design FN9160 Rev.4.00 Page 1 of 12 May 5, 2008ISL6614A Pinouts Ordering Information ISL6614ACB, ISL6614ACBZ, ISL6614ACBZA, ISL6614AIB, PART TEMP. PKG. ISL6614AIBZ PART NUMBER MARKING RANGE (C) PACKAGE DWG. 14 LD SOIC ISL6614ACB* 6614ACB 0 to +85 14 Ld SOIC M14.15 TOP VIEW ISL6614ACBZ* 6614ACBZ 0 to +85 14 Ld SOIC M14.15 PWM1 11 14 VCC (Note) (Pb-free) 22 PWM2 13 PHASE1 ISL6614ACBZA* 6614ACBZ 0 to +85 14 Ld SOIC M14.15 GND 3 (Note) (Pb-free) 12 UGATE1 LGATE1 ISL6614ACR* 66 14ACR 0 to +85 16 Ld 4x4 QFN L16.4x4 4 11 BOOT1 PVCC BOOT2 ISL6614ACRZ* 66 14ACRZ 0 to +85 16 Ld 4x4 QFN L16.4x4 10 5 (Note) (Pb-free) PGND UGATE2 6 9 ISL6614AIB* 6614AIB -40 to +85 14 Ld SOIC M14.15 LGATE2 PHASE2 7 8 ISL6614AIBZ* 6614AIBZ -40 to +85 14 Ld SOIC M14.15 (Note) (Pb-free) ISL6614AIR* 66 14AIR -40 to +85 16 Ld 4x4 QFN L16.4x4 ISL6614AIRZ* 66 14AIRZ -40 to +85 16 Ld 4x4 QFN L16.4x4 (Note) (Pb-free) ISL6614ACR, ISL6614ACRZ, ISL6614AIR, ISL6614AIRZ *Add -T suffix for tape and reel. Please refer to TB347 for details on 16 LD 4X4 QFN reel specifications. TOP VIEW NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free 16 15 14 13 soldering operations. Intersil Pb-free products are MSL classified at Pb- free peak reflow temperatures that meet or exceed the Pb-free GND 1 12 UGATE1 requirements of IPC/JEDEC J STD-020. LGATE1 2 11 BOOT1 GND PVCC 3 10 BOOT2 PGND 4 9 UGATE2 576 8 FN9160 Rev.4.00 Page 2 of 12 May 5, 2008 PWM2 NC LGATE2 PWM1 VCC PHASE2 NC PHASE1