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参数资料
| 型号： | HIP6004EVAL3 |
| 厂商： | Intersil |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD EMBED HIP6004 |
| 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： | 1.3 ~ 3.5 V |
| 电流 - 输出： | 14A |
| 输入电压： | 5 ~ 12 V |
| 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： | HIP6004 |
Embedded DC-DC Converters Using the HIP6004
TM
and HIP6005 (HIP6004EVAL3, HIP6005EVAL3)
Application Note
February 1997
AN9706
Author: Greg J. Miller
Introduction
Today’s high performance microprocessors present many
challenges to their power source. High power consumption,
low bus voltages, and fast load changes are the principal
characteristics which have led to the need for a switch mode
DC-DC converter local to the microprocessor.
Intel has specified a Voltage Regulator Module (VRM) for the
Pentium Pro microprocessor [1]. This specification details
the requirements imposed upon the input power source(s)
by the Pentium Pro and provides the computer industry with
a standard DC-DC converter solution. The Intersil HIP6002
and HIP6003 pulse width modulator (PWM) controllers are
targeted specifically for DC-DC converters powering the
Pentium Pro and similar high performance microprocessors.
The HIP6004 and HIP6005 PWM controllers are enhanced
versions of the HIP6002 and HIP6003, with additional
features specifically for next generation microprocessors,
including Intel’s Pentium II processor.
Intersil HIP6004 and HIP6005
The Intersil HIP6004 and HIP6005 are voltage mode
controllers with many functions needed for high performance
processors. Figure 1 shows a simple block diagram of the
HIP6004 and HIP6005. Each contains a high performance
error amplifier, a high-resolution 5-bit digital-to-analog
converter (DAC), a programmable free running oscillator,
and protection circuitry. The HIP6004 has two MOSFET
drivers for use in synchronous rectified Buck converters. The
HIP6005 omits the lower MOSFET driver for standard Buck
configurations. A more complete description of the parts can
be found in their data sheets [2, 3].
HIP6004/5 Reference Designs
The HIP6004/5EVAL3 is an evaluation board which highlights
the operation of the HIP6004 or the HIP6005 in an embedded
motherboard application. The evaluation board can be
configured as either a synchronous Buck (HIP6004EVAL3) or
standard Buck (HIP6005EVAL3) converter.
Common Features
? Operates in +5V or +12V Input Systems
? 5-Bit DAC with ± 1% Accuracy
? Overvoltage Protection via SCR and Fuse
? Overcurrent Protection
? Embedded Converters with Connector to accept
Microprocessor Test Tool
HIP6004EVAL3
The HIP6004EVAL3 is a synchronous Buck converter
capable of providing up to 14A of current at output voltages
from 1.3V to 3.5V. The schematic and bill-of-materials for
this design can be found in the appendix. The
HIP6004EVAL3 is very similar to the HIP6002EVAL1, which
is described in Intersil Application Note AN9668 [4]. The
HIP6004EVAL3 contains additional input and output
capacitors for more robust performance at processor load
currents up to 14A.
Efficiency
Figure 2 displays the HIP6004EVAL3 efficiency versus load
current for both 5V and 12V inputs and a 2.8V output with
100 linear feet per minute (LFM) of airflow. The converter
efficiency is equal to the output power divided by the input
VCC
OVP
power, which consists of the output power plus losses. For a
PGOOD 12
SS 3
18 19
MONITOR
AND
PROTECTION
2 OCSET
15 BOOT
given input voltage and load condition, the losses are
roughly constant with variations of output voltage. Thus, the
efficiency is lower when the converter output voltage is
lower. This can be seen when comparing Figure 2 in this
RT
20
OSC
14 UGATE
application note to Figure 3 in AN9668.
VID0
VID1
VID2
VID3
VID4
FB
4
5
6
7
8
10
D/A
+
-
HIP6004
-
+
9
11
13 PHASE
1 VSEN
17 LGATE
16 PGND
NOT
PRESENT
(PINS NC)
ON HIP6005
COMP
GND
FIGURE 1. BLOCK DIAGRAM OF HIP6004 AND HIP6005
1
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2002. All Rights Reserved
Pentium? is a registered trademark of Intel Corporation.
相关PDF资料 |
PDF描述 |
|---|---|
| HIP6019BEVAL1 | EVAL BOARD 1 FOR HIP6019B |
| HIP6021EVAL1 | EVALUATION BOARD HIP6021 |
| HIP6301EVAL2 | EVALUATION BOARD HIP6301 |
| HIP6302EVAL1 | EVALUATION BOARD HIP6302 |
| HIP6521EVAL1 | EVALUATION BOARD HIP6521 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6005 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
| HIP6005A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
| HIP6005ACB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIP6005ACB-T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HIP6005B | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
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