ISL6568IRZ

Renesas
Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications ISL6568 Features The ISL6568 two-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multi-p...
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Технические характеристики

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Корпус QFN-32 VQFN32
Входное напряжение
Кол-во выходов
Частота преобразования
Примечание Switching Controller, Voltage-mode, 275kHz Switching Freq-Max, PQCC32
Рабочая температура
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Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications ISL6568 Features The ISL6568 two-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multi-phase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution. • Integrated Multi-Phase Power Conversion - 1 or 2-Phase Operation Outstanding features of this controller IC include programmable VID codes compatible with Intel VRM9,VRM10, as well as AMD Hammer microprocessors. A unity gain, differential amplifier is provided for remote voltage sensing, compensating for any potential difference between remote and local grounds. The output voltage can also be positively or negatively offset through the use of a single external resistor. A unique feature of the ISL6568 is the combined use of both DCR and rDS(ON) current sensing. Load line voltage positioning (droop) and overcurrent protection are accomplished through continuous inductor DCR current sensing, while rDS(ON) current sensing is used for accurate channel-current balance. Using both methods of current sampling utilizes the best advantages of each technique. Protection features of this controller IC include a set of sophisticated overvoltage, undervoltage, and overcurrent protection. Overvoltage results in the converter turning the lower MOSFETs ON to clamp the rising output voltage and protect the microprocessor. The overcurrent protection level is set through a single external resistor. Furthermore, the ISL6568 includes protection against an open circuit on the remote sensing inputs. Combined, these features provide advanced protection for the microprocessor and power system. January 12, 2012 FN9187.5 1 • Precision Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy Over Temperature - Adjustable Reference-Voltage Offset • Precision Channel Current Sharing - Uses Loss-Less rDS(ON) Current Sampling • Accurate Load Line Programming - Uses Loss-Less Inductor DCR Current Sampling • Variable Gate Drive Bias: 5V to 12V • Microprocessor Voltage Identification Inputs - Up to a 6-Bit DAC - Selectable between Intel’s VRM9, VRM10, or AMD Hammer DAC codes - Dynamic VID-on-the-fly Technology • Overcurrent Protection • Multi-tiered Overvoltage Protection • Digital Soft-Start • Selectable Operation Frequency up to 1.5MHz Per Phase • Pb-Free (RoHS Compliant) CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2004-2006, 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. PDF
Документация на ISL6568CRZ-T 

ISL6568 Datasheet Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications

Дата модификации: 18.11.2014

Размер: 811.6 Кб

30 стр.

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