Datasheet > ISL6561CRZA-T

ISL6561CRZA-T

更新时间： 2024-11-30 22:23:11

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关多相元件控制器
页数	文件大小	规格书
26页	778K
描述
Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for VR10.X Application

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ISL6561CRZA-T 数据手册

ISL6561

Data Sheet

May 12, 2005

FN9098.5

Multi-Phase PWM Controller with

Features

• Precision Multi-Phase Core Voltage Regulation

Precision r

or DCR Differential

DS(ON)

Current Sensing for VR10.X Application

- Differential Remote Voltage Sensing

The ISL6561 controls microprocessor core voltage regulation

by driving up to 4 synchronous-rectified buck channels in

parallel. Multi-phase buck converter architecture uses

interleaved timing to multiply channel ripple frequency and

reduce input and output ripple currents. Lower ripple results in

fewer components, lower component cost, reduced power

dissipation, and smaller implementation area.

- ±0.5% System Accuracy Over Life, Load, Line and

Temperature

- Adjustable Reference-Voltage Offset

• Precision r

DS(ON)

or DCR Current Sensing

- Integrated Programmable Temperature Compensation

- Accurate Load-Line Programming

- Accurate Channel-Current Balancing

- Differential Current Sense

Microprocessor loads can generate load transients with

extremely fast edge rates. The ISL6561 features a high

bandwidth control loop and ripple frequencies of >4MHz to

provide optimal response to the transients.

- Low-Cost, Lossless Current Sensing

• Internal Shunt Regulator for 5V or 12V Biasing

• Microprocessor Voltage Identification Input

- Dynamic VID™ technology

Today’s microprocessors require a tightly regulated output

voltage position versus load current (droop). The ISL6561

senses current by utilizing patented techniques to measure

- 6-Bit VID Input

the voltage across the on resistance, r

, of the lower

- 0.8375V to 1.600V in 12.5mV Steps

DS(ON)

MOSFETs or DCR of the output inductor during the lower

MOSFET conduction intervals. Current sensing provides the

needed signals for precision droop, channel-current

balancing, and overcurrent protection.

• Threshold-Sensitive Enable Function for synchronizing

with driver POR

• Overcurrent Protection

• Overvoltage Protection

The accuracy of the current-sensing method is enhanced by

the ISL6561’s temperature compensation function. Droop

- No Additional External Components Needed

- OVP Pin to drive opitional Crowbar Device

accuracy can be affected by increasing r

or DCR with

DS(ON)

elevated temperature. The ISL6561 uses an internal

temperature-sensing element to provide programmable

temperature compensation. Correctly applied, temperature

• 2, 3, or 4 Phase Operation

• Greater Than 1MHz Operation (> 4MHz Ripple)

• Pb-free Available (RoHS Compliant)

• QFN Package Option

compensation can completely nullify the effect of r

DS(ON) or

DCR temperature sensitivity.

A unity gain, differential amplifier is provided for remote

voltage sensing. Any potential difference between remote

and local grounds can be completely eliminated using the

remote-sense amplifier. Eliminating ground differences

improves regulation and protection accuracy. The threshold-

sensitive enable input is available to accurately coordinate

the start up of the ISL6561 with any other voltage rail.

Dynamic-VID™ technology allows seamless on-the-fly VID

changes. The offset pin allows accurate voltage offset

settings that are independent of VID setting. The ISL6561

uses 5V bias and has a built-in shunt regulator to allow 12V

bias using only a small external limiting resistor.

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

Flat No Leads - Product Outline

- QFN Near Chip Scale Package Footprint; Improves

PCB Efficiency, Thinner in Profile

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | 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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ISL6561CRZA-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6561CRZA	INTERSIL	完全替代	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561CR	INTERSIL	完全替代	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561CR-T	INTERSIL	完全替代	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for

与ISL6561CRZA-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6561CRZ-T	INTERSIL	获取价格	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561CRZ-T	RENESAS	获取价格	SWITCHING CONTROLLER, 1500kHz SWITCHING FREQ-MAX, PQCC40, 6 X 6 MM, GREEN, PLASTIC, MO-220
ISL6561CRZ-TK	RENESAS	获取价格	SWITCHING CONTROLLER, 1500kHz SWITCHING FREQ-MAX, PQCC40, 6 X 6 MM, GREEN, PLASTIC, MO-220
ISL6561IR	INTERSIL	获取价格	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561IR-T	INTERSIL	获取价格	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561IRZ	INTERSIL	获取价格	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6561IRZ-T	INTERSIL	获取价格	Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for
ISL6562	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Two-Phase Buck PWM Controller
ISL6562CB	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Two-Phase Buck PWM Controller
ISL6562CB-T	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Two-Phase Buck PWM Controller

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