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45IZ

更新时间: 2024-01-05 09:16:22
品牌 Logo 应用领域
英特矽尔 - INTERSIL 控制器
页数 文件大小 规格书
16页 314K
描述
5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

45IZ 技术参数

是否Rohs认证: 符合生命周期:Active
Reach Compliance Code:compliantECCN代码:EAR99
Factory Lead Time:4 weeks 2 days风险等级:5.5
Is Samacsys:N其他特性:RATED BREAKING CAPACITY AT 690 VDC: 200000 A
主体高度:19.1 mm主体长度或直径:48 mm
电路保护类型:ELECTRIC FUSE焦耳积分标称:76 J
安装特点:INLINE/HOLDER包装方法:BOX
物理尺寸:48mm x 19.1mm额定分断能力:200000 A
额定电流:45 A额定电压(交流):690 V
额定电压(直流):350 V参考标准:BS 88; CE
表面贴装:NO端子形状:TAB/BLADE
Base Number Matches:1

45IZ 数据手册

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www.DataSheet4U.com  
ISL6545, ISL6545A  
®
Data Sheet  
November 15, 2006  
FN6305.3  
5V or 12V Single Synchronous Buck  
Features  
Pulse-Width Modulation (PWM) Controller  
• Operates from +5V or +12V Supply Voltage (for bias)  
The ISL6545 makes simple work out of implementing a  
complete control and protection scheme for a DC/DC stepdown  
converter driving N-channel MOSFETs in a synchronous buck  
topology. Since it can work with either 5V or 12V supplies, this  
one IC can be used in a wide variety of applications within a  
system. The ISL6545 integrates the control, gate drivers, output  
adjustment, monitoring and protection functions into a single 8  
Ld SOIC or 10 Ld DFN package.  
- 1.0V to 12V V Input Range (up to 20V possible with  
IN  
restrictions; see Input Voltage Considerations)  
- 0.6V to V Output Range  
IN  
- Integrated Gate Drivers use V  
(5V to 12V)  
CC  
- 0.6V Internal Reference; ±1.0% tolerance  
• Simple Single-Loop Control Design  
- Voltage-Mode PWM Control  
- Drives N-Channel MOSFETs  
The ISL6545 provides single feedback loop, voltage-mode  
control with fast transient response. The output voltage can be  
precisely regulated to as low as 0.6V, with a maximum  
tolerance of ±1.0% over temperature and line voltage  
variations. A selectable fixed frequency oscillator (ISL6545 for  
300kHz; ISL6545A for 600kHz) reduces design complexity,  
while balancing typical application cost and efficiency.  
• Fast Transient Response  
- High-Bandwidth Error Amplifier  
- Full 0% to 100% Duty Cycle  
• Lossless, Programmable Overcurrent Protection  
- Uses Lower MOSFET’s r  
DS(ON)  
• Small Converter Size in 8 Ld SOIC or 10 Ld DFN  
- 300kHz or 600kHz Fixed Frequency Oscillator  
The error amplifier features a 20MHz gain-bandwidth  
product and 9V/μs slew rate which enables high converter  
bandwidth for fast transient performance. The resulting  
PWM duty cycles range from 0% to 100%.  
- Fixed Internal Soft-Start, Capable into a Pre-biased  
Load  
- Integrated Boot Diode  
Protection from overcurrent conditions is provided by  
- Enable/Shutdown Function on COMP/SD Pin  
- Output Current Sourcing and Sinking  
monitoring the r  
of the lower MOSFET to inhibit PWM  
DS(ON)  
operation appropriately. This approach simplifies the  
implementation and improves efficiency by eliminating the  
need for a current sense resistor.  
• Pb-Free Plus Anneal Available (RoHS Compliant)  
Applications  
Pinout  
• Power Supplies for Microprocessors or Peripherals  
- PCs, Embedded Controllers, Memory Supplies  
- DSP and Core Communications Processor Supplies  
ISL6545 (SOIC)  
TOP VIEW  
• Subsystem Power Supplies  
- PCI, AGP; Graphics Cards; Digital TV  
BOOT  
UGATE  
1
2
3
4
8
7
6
5
PHASE  
COMP/SD  
FB  
- SSTL-2 and DDR/DDR2/DDR3 SDRAM Bus  
Termination Supply  
GND  
• Cable Modems, Set Top Boxes, and DSL Modems  
• Industrial Power Supplies; General Purpose Supplies  
• 5V or 12V-Input DC/DC Regulators  
LGATE/OCSET  
VCC  
ISL6545 (10 LD 3x3 DFN)  
• Low-Voltage Distributed Power Supplies  
TOP VIEW  
1
2
3
4
5
10  
9
BOOT  
PHASE  
UGATE  
COMP/SD  
FB  
GND  
8
N/C  
GND  
7
N/C  
6
LGATE/OCSET  
VCC  
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. 2006. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  

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