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| 型号： | ISL6443IRZ |
| 厂商： | Intersil |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SGL/STEP DOWN PWM 28QFN |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 60 |
| 应用： | 电源 |
| 电流 - 电源： | 50µA |
| 电源电压： | 5.6 V ~ 24 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
| 产品目录页面： | 1243 (CN2011-ZH PDF) |
ED F
O M M SE U SE
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OR N 3 A
ISL6 Data Sheet
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August 9, 2006
ISL6443
FN9044.2
300kHz Dual, 180° Out-of-Phase, Step-
Down PWM and Single Linear Controller
The ISL6443 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° out of phase reducing the RMS input
current and ripple voltage.
The ISL6443 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).
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.
Ordering Information
Features
? Wide Input Supply Voltage Range
- Variable 5.6V to 24V
- Fixed 4.5V to 5.6V
? Three Independently Programmable Output Voltages
? Switching Frequency . . . . . . . . . . . . . . . . . . . . . . . 300kHz
? Out of Phase PWM Controller Operation
- Reduces Required Input Capacitance and Power
Supply Induced Loads
? No External Current Sense Resistor
- Uses Lower MOSFET’s r DS(ON)
? Bidirectional Frequency Synchronization for
Synchronizing Multiple ISL6443s
? Programmable Soft-Start
? Extensive circuit protection functions
- PGOOD
- UVLO
- Overcurrent
- Over-temperature
- Independent Shutdown for Both PWMs
PART
PART
TEMP.
PKG.
? Excellent Dynamic Response
NUMBER
MARKING RANGE (°C)
PACKAGE
DWG. #
- Voltage Feed-Forward with Current Mode Control
ISL6443IR
ISL6443IR
-40 to 85
28 Ld 5x5 QFN L28.5x5
? QFN Packages:
ISL6443IRZ ISL6443IRZ
(See Note)
-40 to 85
28 Ld 5x5 QFN L28.5x5
(Pb-free)
- QFN - Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
Add “-T” or “-TK” suffix for tape and reel.
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
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
? Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
? Power Supplies with Multiple Outputs
IPC/JEDEC J STD-020.
? xDSL Modems/Routers
? DSP, ASIC, and FPGA Power Supplies
? Set-Top Boxes
? Dual Output Supplies for DSP, Memory, Logic, μ P Core
and I/O
? Telecom Systems
1
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.
Copyright ? Intersil Americas Inc. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6443IRZS2698 | 制造商:Intersil Corporation 功能描述:LEAD-FREE DUAL PWM CONTROLLER + LINEAR CONTROLLER, 300KHZ, Q - Rail/Tube |
| ISL6443IRZ-T | 功能描述:IC CTRLR PWM DUAL 300KHZ 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| ISL6443IRZ-TK | 功能描述:IC CTRLR PWM DUAL 300KHZ 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| ISL6443IRZ-TKS2698 | 制造商:Intersil Corporation 功能描述:LEAD-FREE DUAL PWM CONTROLLER + LINEAR CONT., 300KHZ, QFN, 5 - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: |
| ISL6443IRZ-TS2698 | 制造商:Intersil Corporation 功能描述:LEAD-FREE DUAL PWM CONTROLLER + LINEAR CONTROLLER, 300KHZ, Q - Tape and Reel |
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