Datasheet > ISL9500CVZ-T

ISL9500CVZ-T

更新时间： 2024-11-25 01:13:27

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关多相元件
页数	文件大小	规格书
20页	467K
描述
Precision Multi-Phase Buck PWM Controller

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ISL9500CVZ-T 数据手册

ISL9500

Data Sheet

December 2, 2005

FN9248.0

Precision Multi-Phase Buck PWM

Controller

Features

• Diode Emulation Functionality in Deep and Deeper Sleep

Modes for Improved Light Load Efficiency

The ISL9500 multi-phase Buck PWM control IC, with

integrated half bridge gate drivers, provides a precision

voltage regulation system for microprocessors in notebook

computers. Two-phase operation eases the thermal

management issues and load demand of high performance

processors. This control IC also features both input voltage

feed-forward and average current mode control for excellent

dynamic response, “Loss-less” current sensing using

• Single and/or Two-phase Power Conversion

• “Loss-less” Current sensing for Improved Efficiency and

Reduced Board Area

- Optional Discrete Precision Current Sense Resistor

• Internal Gate-Drive and Boot-Strap Diodes

• Precision CORE Voltage Regulation

- 0.8% System Accuracy Over Temperature

MOSFET r

and user selectable switching

DS(ON)

frequencies from 250kHz to 1MHz per phase.

• 6-Bit Microprocessor Voltage Identification Input

The ISL9500 includes a 6-bit digital-to-analog converter

(DAC) that dynamically adjusts the CORE PWM output

voltage. The ISL9500 also has logic inputs to select Active,

Deep Sleep and Deeper Sleep modes of operation. A

precision reference, remote sensing and proprietary

architecture, with integrated, processor-mode, compensated

“Droop”, provide excellent static and dynamic CORE voltage

regulation.

• Programmable “Droop” and CORE Voltage Slew Rate

• Direct Interface with System Logic for Deep and Deeper

Sleep modes of operation

• Easily Programmable Voltage Setpoints for Initial “Boot”,

Deep Sleep and Deeper Sleep Modes

• Excellent Dynamic Response

- Combined Voltage Feed-Forward and Average Current

To improve efficiency at light loading, the ISL9500 can be

configured to run in single phase PWM in Active, Deep or

Deeper Sleep modes of operation. Also, in Deep and

Deeper sleep modes the ISL9500 will operate in diode

emulation.

Mode Control

• Overvoltage, Undervoltage and Overcurrent Protection

• Power-Good Output with Internal Blanking during VID and

Mode Changes

Another feature of this IC controller is the PGOOD monitor

circuit that is held low until CORE voltage increases, during

its soft-start sequence, to within 12% of the “Boot” voltage.

This PGOOD signal is masked during VID changes. Output

overcurrent, overvoltage and undervoltage are monitored

and result in the converter latching off and PGOOD signal

being held low.

• User programmable Switching Frequency of 250kHz -

1MHz

• Pb-Free Plus Anneal Available (RoHS Compliant)

Ordering Information

TEMP

The overvoltage and undervoltage thresholds are 112% and

84% of the VID, Deep or Deeper Sleep setpoint,

respectively. Overcurrent protection features a 32 cycle

overcurrent shutdown. PGOOD, overvoltage, undervoltage

and overcurrent provide monitoring and protection for the

microprocessor and power system. The ISL9500 IC is

available in a 38 lead TSSOP.

PART

RANGE

(°C)

PKG.

NUMBER

MARKING

PACKAGE

DWG. #

ISL9500CVZ

(See Note)

38 Ld TSSOP

(Pb-free)

ISL9500CVZ -10 to 85

M38.173

38 Ld TSSOP

ISL9500CVZ -10 to 85 Tape and Reel M38.173

(Pb-free)

ISL9500CVZ-T

(See Note)

NOTE:

Intersil Pb-free plus anneal products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are 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.

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.

All other trademarks mentioned are the property of their respective owners.

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ISL9500CVZ-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL9500CVZ	INTERSIL	完全替代	Precision Multi-Phase Buck PWM Controller

与ISL9500CVZ-T相关器件

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