Datasheet > ISL6558

ISL6558

更新时间： 2024-11-29 22:57:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		多相元件控制器
页数	文件大小	规格书
16页	472K
描述
Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positioning

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ISL6558 数据手册

ISL6558

Data Sheet

J une 21, 2005

FN9027.12

Multi-Purpos e Precis ion Multi-Phas e PWM

Controller With Optional Active Voltage

Pos itioning

Features

• Pb-Free Plus Anneal Available (RoHS Compliant)

• Multi-Phase Power Conversion

The ISL6558 is a multi-phase PWM controller, which in

combination with the HIP6601B, HIP6602B, HIP6603B, or

ISL6605 companion gate drivers form a complete solution

for high-current, high slew-rate applications. The ISL6558

regulates output voltage, balances load currents and

provides protective functions for two to four synchronous

rectified buck converter channels.

- 2-, 3-, or 4-Phase Operation

• Optional Output Voltage Droop

• Precision Channel-Current Balance

• Lossless Current Sensing

• Precision Reference Voltage

- 0.8V ± 1.5% Over -40°C - 85°C Range

- 0.8V ± 1.0% Over 0°C - 70°C Range

A novel approach to current sensing is used to reduce

overall solution cost and improve efficiency. The voltage

developed across the lower MOSFET during conduction is

sampled and fed back to the controller. This lossless

current-sensing approach enables the controller to maintain

phase-current balance between the power channels, provide

overcurrent protection, and permit droop compensation.

• Fast Transient Response

• Overcurrent and Overvoltage Protection

• Digital Soft-start

• Power Good Indication

• High Ripple Frequency (80kHz to 1.5MHz)

• QFN Package

Optional output voltage “droop” or active voltage positioning

is supported via the DROOP pin. Taking advantage of this

feature reduces the size and cost of the output capacitors

required to support a load transient.

- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat

No Leads-Product Outline

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

In the event of an overvoltage, the controller monitors and

responds to reduce the risk of damage to load devices.

Undervoltage conditions are indicated through a PGOOD

transition. Overcurrent conditions cause the converter to

shutdown limiting the exposure of load devices. These

integrated monitoring and protection features provide a safe

environment for microprocessors and other advanced low

voltage circuits.

Applications

• Power Supply Control for Microprocessors

• Low Output Voltage, High Current DC-DC Converters

• Voltage Regulator Modules

• Servers and Workstations

• Memory and Accelerated Graphics Port Supplies

• Communication Processor and Personal Computer

Peripherals

Pinouts

ISL6558 (20 LEAD 5X5 QFN)

ISL6558 (16 LEAD SOIC)

TOP VIEW

16 PWM4

ISEN4

20 19 18 17 16

PGOOD

COMP

DROOP

14 ISEN1

13 PWM1

12 PWM2

COMP

N/C

15 ISEN1

PWM1

PWM2

ISEN2

VSEN

FS/EN

GND

ISEN2

ISEN3

PWM3

DROOP

VSEN

11 ISEN3

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.

12 3 4 5 6 7...16

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与ISL6558相关器件

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ISL6558CB	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CB-T	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CBZ	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CBZA	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CBZA-T	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CR	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CR-T	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CRZ	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CRZA	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin
ISL6558CRZA-T	INTERSIL	获取价格	Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positionin

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