Datasheet > ISL6441IR-T

ISL6441IR-T

更新时间： 2024-11-30 22:09:55

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关控制器
页数	文件大小	规格书
18页	380K
描述
1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller

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ISL6441IR-T 数据手册

ISL6441

Data Sheet

October 4, 2005

FN9197.1

1.4MHz Dual, 180° Out-of-Phase, Step-

Down PWM and Single Linear Controller

Features

• Wide Input Supply Voltage Range

- 5.6V to 24V

The ISL6441 is a high-performance, triple-output controller

optimized for converting wall adapter, battery or network

intermediate bus DC input supplies into the system supply

voltages required for a wide variety of applications. Each

output is adjustable down to 0.8V. The two PWMs are

synchronized 180^oout of phase reducing the RMS input

current and ripple voltage.

- 4.5V to 5.6V

• Three Independently Programmable Output Voltages

• Switching Frequency . . . . . . . . . . . . . . . . . . . . . . .1.4MHz

• Out of Phase PWM Controller Operation

- Reduces Required Input Capacitance and Power

Supply Induced Loads

The ISL6441 incorporates several protection features. An

adjustable overcurrent protection circuit monitors the output

current by sensing the voltage drop across the lower

MOSFET. Hiccup mode overcurrent operation protects the

DC/DC components from damage during output

overload/short circuit conditions. Each PWM has an

independent logic-level shutdown input (SD1 and SD2).

• No External Current Sense Resistor

- Uses Lower MOSFET’s r

DS(ON)

• Bi-directional Frequency Synchronization for

Synchronizing Multiple ISL6441s

• Programmable Soft-Start

A single PGOOD signal is issued when soft-start is complete

on both PWM controllers and their outputs are within 10% of

the set point and the linear regulator output is greater than

75% of its setpoint. Thermal shutdown circuitry turns off the

device if the junction temperature exceeds +150°C.

• Extensive Circuit Protection Functions

- PGOOD

- UVLO

- Overcurrent

- Overtemperature

- Independent Shutdown for Both PWMs

Ordering Information

• Excellent Dynamic Response

- Voltage Feed-Forward with Current Mode Control

TEMP.

PART

RANGE

(°C)

PKG.

NUMBER MARKING

PACKAGE

DWG. #

• QFN Package:

- QFN - Compliant to JEDEC PUB95 MO-220

QFN - Quad Flat No Leads - Package Outline

- Near Chip Scale Package footprint, which improves

PCB efficiency and has a thinner profile

ISL6441IR ISL6441IR

-40 to 85 28 Ld QFN

L28.5x5

ISL6441IRZ ISL6441IRZ -40 to 85 28 Ld QFN

(See Note) (Pb-free)

Add “-T” or “-TK” suffix to part number for tape and reel packaging.

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.

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Power Supplies with Multiple Outputs

• xDSL Modems/Routers

• DSP, ASIC, and FPGA Power Supplies

• Set-Top Boxes

• Dual Output Supplies for DSP, Memory, Logic, µP Core

and I/O

• Telecom Systems

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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ISL6441IR-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6441IRZ-TK	INTERSIL	类似代替	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441IRZ	INTERSIL	类似代替	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller

与ISL6441IR-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6441IR-TK	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441IRZ	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441IRZ-T	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441IRZ-TK	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6442	INTERSIL	获取价格	Dual (180∑ Out-of-Phase) PWM and Linear Contr
ISL6442IA	INTERSIL	获取价格	Dual (180∑ Out-of-Phase) PWM and Linear Contr
ISL6442IAZ	INTERSIL	获取价格	Dual (180∑ Out-of-Phase) PWM and Linear Contr
ISL6442IAZ	RENESAS	获取价格	2.5MHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller; QSOP24
ISL6442IAZ-TK	RENESAS	获取价格	2.5MHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller; QSOP24
ISL6443	INTERSIL	获取价格	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller

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