Datasheet > ISL6440IA-T

ISL6440IA-T

更新时间： 2024-11-30 22:07:35

品牌	Logo	应用领域
英特矽尔 - INTERSIL		开关光电二极管控制器
页数	文件大小	规格书
15页	344K
描述
300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller

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ISL6440IA-T 数据手册

ISL6440

Data Sheet

October 4, 2005

FN9040.2

300kHz Dual, 180° Out-of-Phase, Step-

Down PWM Controller

Features

• Wide Input Supply Voltage Range

- 5.6V to 24V

The ISL6440 is a high-performance, dual-output PWM

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

• Two Independently Programmable Output Voltages

• Switching Frequency . . . . . . . . . . . . . . . . . . . . . . .300kHz

• Out of Phase PWM Controller Operation

- Reduces Required Input Capacitance and Power

Supply Induced Loads

The ISL6440 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

• No External Current Sense Resistor

- Uses Lower MOSFET’s r

DS(ON)

• Programmable Soft-Start

overload/short circuit conditions. Each PWM has an

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

• Extensive Circuit Protection Functions

- PGOOD

- UVLO

- Overcurrent

- Overtemperature

- Independent Shutdown for Both PWMs

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. Thermal shutdown circuitry turns off the device

if the junction temperature exceeds +150°C.

• Excellent Dynamic Response

- Voltage Feed-Forward with Current Mode Control

Pinout

ISL6440 (QSOP)

TOP VIEW

• Pb-Free Plus Anneal Available (RoHS Compliant)

LGATE2

LGATE1

Applications

BOOT2

BOOT1 23

• Power Supplies with Two Outputs

• xDSL Modems/Routers

• DSP, ASIC, and FPGA Power Supplies

• Set-Top Boxes

UGATE2 UGATE1

PHASE1 21

ISEN1 20

PGND 19

SD1 18

PHASE2

ISEN2

PGOOD

VCC5

SD2

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

and I/O

SS1 17

SS2

SGND 16

10 OCSET2 OCSET1

• Telecom Systems

11 FB2

12 VIN

FB1 14

Ordering Information

BIAS 13

TEMP.

PART

RANGE

(°C)

PKG.

NUMBER

MARKING

PACKAGE

DWG. #

ISL6440IA

-40 to 85 24 Ld QSOP M24.15

ISL6440IAZ ISL6440IAZ

(See Note)

-40 to 85 24 Ld QSOP M24.15

(Pb-free)

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.

Add “-T” or “-TK” suffix for tape and reel.

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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ISL6440IA-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6440IAZ-T	INTERSIL	功能相似	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller

与ISL6440IA-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6440IA-TK	INTERSIL	获取价格	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
ISL6440IAZ	INTERSIL	获取价格	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
ISL6440IAZ-T	INTERSIL	获取价格	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
ISL6440IAZ-TK	INTERSIL	获取价格	300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller
ISL6441	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441EVAL1	INTERSIL	获取价格	High Voltage ORing MOSFET Controller
ISL6441IR	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
ISL6441IR-T	INTERSIL	获取价格	1.4MHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
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

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