参数资料
| 型号： | ISL6556BCBZ |
| 厂商： | Intersil |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR MULTIPHASE VRM10 28SOIC |
| 标准包装： | 520 |
| 应用： | 控制器，Intel VR10X |
| 输入电压： | 3 V ~ 12 V |
| 输出数： | 4 |
| 输出电压： | 0.84 V ~ 1.6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
?
ISL6556B
Data Sheet
December 28, 2004
FN9097.4
Optimized Multi-Phase PWM Controller
with 6-Bit DAC and Programmable Internal
Temperature Compensation for VR10.X
Application
The ISL6556B controls microprocessor core voltage
regulation by driving up to 4 synchronous-rectified buck
channels in parallel. Multi-phase buck converter architecture
uses interleaved timing to multiply channel ripple frequency
and reduce input and output ripple currents.
The ISL6556B utilizes r DS(ON) current sensing in each
phase for adaptive voltage positioning (droop), channel-
current balancing, and overcurrent protection. To ensure the
accuracy of droop, a programmable internal temperature
compensation function is implemented to nullify the effect of
r DS(ON) temperature sensitivity.
A unity gain, differential amplifier is provided for remote voltage
sensing. Any potential difference between remote and local
grounds can be eliminated using the remote-sense amplifier.
The precision threshold-sensitive enable input is available to
accurately coordinate the startup of the ISL6556B with Intersil
MOSFET driver IC. Dynamic-VID? technology allows
seamless on-the-fly VID changes. The offset pin allows accurate
voltage offset settings that are independent of VID setting. The
ISL6556B uses 5V bias and has a built-in shunt regulator to
allow 12V bias using only a small external limiting resistor.
Ordering Information
Features
? Precision Multi-Phase Core Voltage Regulation
- Differential Remote Voltage Sensing
- ± 0.5% System Accuracy Over Temperature and Life
- Adjustable Reference-Voltage Offset
? Precision r DS(ON) Current Sensing
- Integrated Programmable Temperature Compensation
- Accurate Load-Line Programming
- Accurate Channel-Current Balancing
- Low-Cost, Lossless Current Sensing
? Internal Shunt Regulator for 5V or 12V Biasing
? Microprocessor Voltage Identification Input
- Dynamic VID? Technology
- 6-Bit VID Input
- 0.8375V to 1.600V in 12.5mV Steps
? Threshold Enable Function for Precision Sequencing
? Overcurrent Protection
? Overvoltage Protection
- No Additional External Components Needed
- OVP Pin to drive optional Crowbar Device
? 2, 3, or 4 Phase Operation up to 1.5MHz per Phase
? QFN Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad
Flat No Leads - Product Outline
PART NUMBER TEMP. (°C)
PACKAGE
PKG. DWG. #
- QFN Near Chip Scale Package Footprint; Improves
ISL6556BCB*
0 to 70
28 Ld SOIC
M28.3
PCB Efficiency, Thinner in Profile
ISL6556BCBZ*
0 to 70
28 Ld SOIC (Pb-free) M28.3
? Pb-free Available (RoHS Compliant)
(Note)
ISL6556BCBZA
-T (Note)
0 to 70
28 Ld SOIC Tape and M28.3
Reel (Pb-free)
ISL6556BCR*
ISL6556BCRZ*
(Note)
0 to 70
0 to 70
32 Ld 5x5B QFN
32 Ld 5x5B QFN
(Pb-free)
L32.5x5B
L32.5x5B
* Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free 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.
1
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.
Dynamic VID? is a trademark of Intersil Americas Inc. Copyright ? Intersil Americas Inc. 2002-2004. 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 |
|---|---|
| ISL6556BCBZ | 制造商:Intersil Corporation 功能描述:Pulse Width Modulation (PWM) Controller |
| ISL6556BCBZ-T | 功能描述:电流型 PWM 控制器 VRM 10 0 MULTI-PHS CONTROLLER RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6556BCR | 功能描述:IC CTRLR MULTIPHASE VRM10 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6556BCRR5148 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6556BCR-T | 功能描述:IC CTRLR MULTIPHASE VRM10 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
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