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參數(shù)資料
| 型號： | ISL6430 |
| 廠商： | Intersil Corporation |
| 英文描述： | Single Sync Buck PWM Controller for Broadband Gateway Applications |
| 中文描述： | 單同步降壓PWM控制器，寬帶網(wǎng)關(guān)應(yīng)用 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 400K |
| 代理商： | ISL6430 |
1
ISL6430
Single Sync Buck PWM Controller for
Broadband Gateway Applications
The ISL6430 provides complete control and protection for a
DC-DC converter optimized for high-performance broadband
gateway applications. It is designed to drive two N Channel
MOSFETs in a synchronous-rectified buck topology. The
ISL6430 integrates all of the control, output adjustment,
monitoring and protection functions into a single package.
The output voltage of the converter can be precisely
regulated to as low as 1.27V, with a maximum tolerance of
±1% over temperature and line voltage variations.
The ISL6430 provides simple, single feedback loop, voltage-
mode control with fast transient response. It includes a
200kHz free-running triangle-wave oscillator that is
adjustable from below 50kHz to over 1MHz. The error
amplifier features a 15MHz gain-bandwidth product and
6V/
s slew rate which enables high converter bandwidth for
fast transient performance. The resulting PWM duty ratio
ranges from 0% to 100%.
The ISL6430 protects against over-current conditions by
inhibiting PWM operation. The ISL6430 monitors the current
by using the rDS(ON) of the upper MOSFET which eliminates
the need for a current sensing resistor.
Features
Drives Two N-Channel MOSFETs
Operates From +5V or +12V Input
Simple Single-Loop Control Design
- Voltage-Mode PWM Control
Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
Excellent Output Voltage Regulation
- 1.27V Internal Reference
-
±1% Over Line Voltage and Temperature
Over-Current Fault Monitor
- Does Not Require Extra Current Sensing Element
- Uses MOSFETs rDS(ON)
Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator Programmable from
50kHz to Over 1MHz
14-Lead SOIC and 16-Lead QFN
Applications
Cable Modems, Set-Top Boxes and DSL Modems
DSP and Core Communications Processor Supplies
High-Power 5V Input DC-DC Regulators
Low-Voltage Distributed Power Supplies
Pinout
ISL6430 (SOIC)
TOP VIEW
ISL6430 (QFN)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG. DWG. #
ISL6430CB
0 to 70
14 Ld SOIC
M14.15
ISL6430CR
0 to 70
16 Ld QFN
L16.5x5B
Add -T suffix to either option for tape and reel packaging.
8
9
10
11
12
13
14
7
6
5
4
3
2
1
OCSET
SS
EN
COMP
FB
RT
VCC
LGATE
PGND
BOOT
UGATE
PHASE
GND
PVCC
1
3
4
15
NC
COMP
FP
EN
SS
OCSE
T
RT
VCC
16
14
13
2
12
10
9
11
6
57
8
PVCC
LGATE
PGND
BOOT
NC
GND
P
HASE
UGATE
Data Sheet
July 2003
FN9017.2
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.
Copyright Intersil Americas Inc. 2003. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6430CB | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intersil Corporation 功能描述: |
| ISL6430CR | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intersil Corporation 功能描述: |
| ISL6431ACB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6431CB | 功能描述:電壓模式 PWM 控制器 For Home Gateways RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| ISL6431CB-T | 功能描述:IC REG CTRLR BUCK PWM VM 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
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