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| 型号： | HIP6301EVAL2 |
| 厂商： | Intersil |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD HIP6301 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.6V |
| 电流 - 输出： | 54A |
| 输入电压： | 5V，12V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | HIP6301 |
?
Three-Phase Buck Switching Converter for
Pentium 4 Processors (HIP6301EVAL2)
Application Note
August 2000
AN9906
Author: Bogdan M. Duduman
Introduction
The increased bandwidth and faster operation of the newest
microprocessor cores brought along the need for higher
current capability converters. Targeting Pentium? 4 type
processors (and others in the same range), the HIP6301-
based 3-phase buck converter presented in this application
note exemplifies a typical practical implementation of a core
regulator for output currents up to 55A. [1,2]
Quick Start Evaluation
Important
The four-pin connector (J7; see schematic on page 5) on the
evaluation board is meant to couple only with the matching
12V connector from an ATX12V supply only. Some newer
models of ATX supplies have a similar connector which
carries GND, 3.3V, 5V, and 12V. An attempt to mate such a
connector to the on-board receptacle can result in a
potentially dangerous situation, and it will certainly prevent
the power supply from operating. If an ATX12V power
supply is unavailable, use only the 20-pin connector from the
available ATX supply to power up the board.
Circuit Setup
The HIP6301EVAL2 is built for evaluation using ordinary
laboratory equipment, specialized tools, or a combination of
the two. Best (and possibly easiest if the tools are available)
way to evaluate the circuit is by using an ATX supply and an
Intel PGA423 EMT Tool.
‰ Set Up JP1, JP2, and JP3
Consult the circuit schematic and data sheet and set the JP1
VID jumper combination on the HIP6503EVAL1 according to
the output voltage you wish to evaluate the board at. If using an
EMT Tool, it is advised you set the similar jumpers present on
the test tool to the same code, or de-populate them altogether.
JP2 and JP3 allow remote sensing of the output voltage at
TP8 and, alternately, at TP10, TP11. By placing the shunts
in the ‘PLANE’ position (see top silk screen on page 8), the
voltage present at the test points will reflect the output
voltage on the board, physically close to the center of the
processor socket’s cavity. The ‘PIN’ position reflects the
processor-die (load) voltage fed back through the voltage
sensing pins present on the test tool (if equipped) and the
processor package.
‰ Connect the Input Power Supply
Connect the main ATX output connector to J6. If an ATX12V
supply is used, connect the dedicated 12V 4-pin connector
to J7. Regulation of the ATX supplies is generally dependent
on the presence of a load on the main 5V output - for best
results, have a 5 Ω /25W-50W power resistor connected to
the 5V output of the ATX supply (take necessary
precautions, as the resistor may get very hot).
If regular bench supplies are used, connect a 12V/10A and a
5V/1A supply to J1, J2, respectively; connect both grounds
to J3.
‰ Connect the Output Load
Connect an electronic or resistive load to the evaluation
board’s output (J4 and J5), or use an Intel PGA423 EMT
Tool (J8).
Operation
‰ Apply Power to the Board
Plug the ATX supply into the mains. If the supply has an AC
switch, turn it on. If using standard bench supplies, turn them
on, preferably the 12V supply first, followed by the 5V
supply. If the 5V is applied first, the soft-start will likely end
before application of the 12V, resulting in an initial over-
current event, followed by a normal output voltage ramp-up.
Occasionally, application of voltages in the improper
sequence may result in an initial over-voltage event, latching
the evaluation board off. In such instance, cycle the bias
power to the controller IC (5V) to reset the latch.
‰ Examine Start-Up Waveforms
Start-up is immediate following application of power. After a
quick red flash, the CR1 LED indicator should turn green,
indicating a PGOOD high (good output voltage). Using an
oscilloscope or other laboratory equipment, you may study
the ramp-up and/or regulation of the controlled output
voltage under various loading/transient conditions.
HIP6301EVAL2 Reference Design
General
The evaluation design is implemented on 2-ounce, 4-layer,
printed circuit board (see last pages of this application note
for layout plots). Wherever needed to reduce layout
parasitics, via-in-pad (VIP) layout techniques were
employed. The entire circuit fits inside a 6in 2 rectangle on
the top side of the board. For better space utilization and
enhanced thermal performance, the upper switch MOSFETs
on each channel are vertically mounted.
For ease of evaluation, the circuit can be powered up from
either bench supplies, regular ATX supplies, or special
ATX12V computer supplies. Similarly, the output can be
exercised using either an Intel EMT tool, resistive loads, or
electronically controlled active loads. For best performance
during evaluation, when applicable, insure the ATX 5V
output is loaded with a minimum of 1A current draw - this will
keep the 12V output regulation within specified limits.
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. 2002. All Rights Reserved
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6301V | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301VCB | 功能描述:IC REG CTRLR BUCK PWM 20-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| HIP6301VCB-T | 功能描述:IC REG CTRLR BUCK PWM 20-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| HIP6301VCB-TS2490 | 制造商:Intersil Corporation 功能描述: |
| HIP6301VCBZ | 功能描述:电流型 PWM 控制器 MULTI-PHS CNTRLR VID ON THE FLYINTEL VID 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 |
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