The ISL6615A is a high-speed MOSFET driver optimized to drive upper and lower power N-Channel MOSFETs in a synchronous rectified buck converter topology. This driver, combined with an Intersil Digital or Analog multiphase PWM controller, forms a complete high frequency and high efficiency voltage regulator. The ISL6615A drives both upper and lower gates over a range of 4. 5V to 13. 2V. This drive-voltage provides the flexibility necessary to optimize applications involving trade-offs between gate charge and conduction losses. The ISL6615A features 6A typical sink current for the low-side gate driver, enhancing the lower MOSFET gate hold-down capability during PHASE node rising edge, preventing power loss caused by the self turn-on of the lower MOSFET due to the high dV/dt of the switching node. An advanced adaptive zero shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously and to minimize the dead-time. The ISL6615A includes an overvoltage protection feature operational before VCC exceeds its turn-on threshold, at which the PHASE node is connected to the gate of the low side MOSFET (LGATE). The output voltage of the converter is then limited by the threshold of the low side MOSFET, which provides some protection to the load if the upper MOSFET(s) is shorted. The ISL6615A also features an input that recognizes a high-impedance state, working together with Intersil multiphase PWM controllers to prevent negative transients on the controlled output voltage when operation is suspended. This feature eliminates the need for the Schottky diode that may be utilized in a power system to protect the load from negative output voltage damage.

Features

  • Dual MOSFET Drives for Synchronous Rectified Bridge
  • Advanced Adaptive Zero Shoot-Through Protection
  • Body Diode Detection
  • LGATE Detection
  • Auto-zero of rDS(ON) Conduction Offset Effect
  • Adjustable Gate Voltage for Optimal Efficiency
  • 36V Internal Bootstrap Schottky Diode
  • Bootstrap Capacitor Overcharging Prevention
  • Supports High Switching Frequency (up to 1MHz)
  • 6A LGATE Sinking Current Capability
  • Fast Rise/Fall Times and Low Propagation Delays
  • Support 5V PWM Input Logic
  • Tri-State PWM Input for Safe Output Stage Shutdown
  • Tri-State PWM Input Hysteresis for Applications with Power Sequencing Requirement
  • Pre-POR Overvoltage Protection
  • VCC Undervoltage Protection
  • Expandable Bottom Copper PAD for Better Heat Spreading
  • Dual Flat No-Lead (DFN) Package
  • Near Chip-Scale Package Footprint; Improves PCB Efficiency and Thinner in Profile
  • Pb-free (RoHS compliant)

Applications

  • Optimized for POL DC/DC Converters for IBA Systems
  • Core Regulators for Intel® and AMD® Microprocessors
  • High Current Low-Profile DC/DC Converters
  • High Frequency and High Efficiency VRM and VRD
  • Synchronous Rectification for Isolated Power Supplies

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Tube 980
Availability
Active SOICN Reel 2500
Availability
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL6615A Datasheet Datasheet PDF 679 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1116: CMOS Applications Information Application Note PDF 576 KB
PCNs & PDNs
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II Product Change Notice PDF 398 KB
PCN13026 - Alternate Manufacturing Site for Assembly of the Listed Intersil SOIC Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 77 KB
PCN12068 - SOIC w/ Copper Bond Wire @ ASECL as Alternate Assembly Site Product Change Notice PDF 108 KB
PCN10055 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia Product Change Notice PDF 248 KB
Other
PLC18018 - General Q3 Product Life Cycle Notice Product Life Cycle Notice PDF 388 KB