DATASHEET ISL6614 FN9155 Rev.5.00 Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Protection May 5, 2008 Features The ISL6614 integrates two ISL6613 MOSFET drivers and is Features specifically designed to drive two independent power Pin-to-pin Compatible with HIP6602 SOIC Family for channels in a Multi-Phase interleaved buck converter Better Performance and Extra Protection Features topology. These drivers combined with HIP63xx or ISL65xx Multi-Phase Buck PWM controllers and N-Channel Quad N-Channel MOSFET Drives for Two Synchronous Rectified Bridges MOSFETs form complete core-voltage regulator solutions for advanced microprocessors. Advanced Adaptive Zero Shoot-Through Protection - Body Diode Detection The ISL6614 drives both the upper and lower gates 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. The over- VCC Undervoltage Protection temperature protection feature prevents failures resulting from excessive power dissipation by shutting off the outputs Over-Temperature Protection (OTP) with +42C Hysteresis when its junction temperature exceeds +150C (typically). Expandable Bottom Copper Pad for Enhanced Heat Sinking The driver resets once its junction temperature returns to +108C (typically). QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat The ISL6614 also features a three-state PWM input which, No Leads - Package Outline working together with Intersils multi-phase PWM controllers, - Near Chip Scale Package Footprint, which Improves prevents a negative transient on the output voltage when the PCB Efficiency and has a Thinner Profile output is shut down. This feature eliminates the Schottky diode that is used in some systems for protecting the load Pb-free Available (RoHS compliant) from reversed output voltage events. 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 FN9155 Rev.5.00 Page 1 of 12 May 5, 2008ISL6614 ISL6614CB, ISL6614CBZ, ISL6614IB ISL6614CR, ISL6614CRZ, ISL6614IR, ISL6614IRZ (14 LD SOIC) (16 LD QFN) TOP VIEW TOP VIEW PWM1 11 14 VCC PWM2 22 13 PHASE1 16 15 14 13 GND 3 12 UGATE1 GND 1 12 UGATE1 LGATE1 4 11 BOOT1 LGATE1 2 11 BOOT1 PVCC BOOT2 5 10 GND 10 PVCC 3 BOOT2 PGND UGATE2 6 9 PGND 4 9 UGATE2 LGATE2 PHASE2 7 8 576 8 Ordering Information PART NUMBER PART MARKING TEMP. RANGE (C) PACKAGE PKG. DWG. ISL6614CB* ISL6614CB 0 to +85 14 Ld SOIC M14.15 ISL6614CBZ* (Note) 6614CBZ 0 to +85 14 Ld SOIC (Pb-free) M14.15 ISL6614CBZA* (Note) 6614CBZ 0 to +85 14 Ld SOIC (Pb-free) M14.15 ISL6614CR* ISL 6614CR 0 to +85 16 Ld 4x4 QFN L16.4x4 ISL6614CRZ* (Note) 66 14CRZ 0 to +85 16 Ld 4x4 QFN (Pb-free) L16.4x4 ISL6614CRZA* (Note) 66 14CRZ 0 to +85 16 Ld 4x4 QFN (Pb-free) L16.4x4 ISL6614IB* ISL6614IB -40 to +85 14 Ld SOIC M14.15 ISL6614IBZ* (Note) 6614IBZ -40 to +85 14 Ld SOIC (Pb-free) M14.15 ISL6614IR* ISL 6614IR -40 to +85 16 Ld 4x4 QFN L16.4x4 ISL6614IRZ* (Note) 66 14IRZ -40 to +85 16 Ld 4x4 QFN (Pb-free) L16.4x4 *Add -T suffix for tape and reel. Please refer to TB347 for details on reel specifications. 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 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. FN9155 Rev.5.00 Page 2 of 12 May 5, 2008 NC PWM2 LGATE2 PWM1 PHASE2 VCC PHASE1 NC