HIP6004EVAL3 Intersil, HIP6004EVAL3 Datasheet

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HIP6004EVAL3

Manufacturer Part Number
HIP6004EVAL3
Description
EVALUATION BOARD EMBED HIP6004
Manufacturer
Intersil
Datasheets

Specifications of HIP6004EVAL3

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.3 ~ 3.5V
Current - Output
14A
Voltage - Input
5 ~ 12V
Regulator Topology
Buck
Board Type
Fully Populated
Utilized Ic / Part
HIP6004
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Frequency - Switching
-
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].
PGOOD
VID0
VID1
VID2
VID3
VID4
FIGURE 1. BLOCK DIAGRAM OF HIP6004 AND HIP6005
FB
RT
SS
12
3
20
4
5
6
7
8
10
D/A
OSC
COMP
+
-
HIP6004
PROTECTION
9
MONITOR
VCC
18
AND
+
-
TM
11
1
19
OVP
GND
Embedded DC-DC Converters Using the HIP6004
Application Note
15
14
13
17
16
2
1 VSEN
and HIP6005 (HIP6004EVAL3, HIP6005EVAL3)
OCSET
BOOT
UGATE
PHASE
LGATE
PGND
NOT
PRESENT
(PINS NC)
ON HIP6005
1-888-INTERSIL or 321-724-7143
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
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
power, which consists of the output power plus losses. For a
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
application note to Figure 3 in AN9668.
Microprocessor Test Tool
February 1997
|
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
Intersil (and design) is a trademark of Intersil Americas Inc.
Pentium® is a registered trademark of Intel Corporation.
Author: Greg J. Miller
AN9706

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HIP6004EVAL3 Summary of contents

Page 1

... 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 power, which consists of the output power plus losses ...

Page 2

... MOSFET switching losses and is displayed in Figure 2. Transient Response Figures 3 and 4 show laboratory oscillograms of the HIP6004EVAL3 in response to a load transient application. The load transient applied is from 0A to 14A for both figures. In Figure 3, the transient is applied using an Intel test tool which emulates the actual dynamic performance of the Pentium II and other future processors ...

Page 3

... Transient Response Figures 6 and 7 show laboratory oscillograms of the HIP6005EVAL3 which are similar to those shown in Figures 3 and 4 for the HIP6004EVAL3. There are small differences in the transient responses of the two different evaluation boards. Since the HIP6005EVAL3 uses a larger output inductor and identical control loop compensation (R5, R8, C8, and C9), the closed-loop gain crossover frequency is lower than for the HIP6004EVAL3 ...

Page 4

... See the Over-Current Protection section of either the HIP6004 and HIP6005 data sheet for details on the design procedure for the OCSET resistor. Enable Function The HIP6004EVAL3 and HIP6005EVAL3 can be disabled by pulling the SS pin below 1.2V. A simple way to incorporate an open collector ENABLE function is shown in Figure 9. HIP6004 ...

Page 5

... It also reduces the amount phase margin slightly, but there is still adequate phase margin with five output capacitors. 2.90 2.80 2.70 TIME (1ms/DIV) FIGURE 10. HIP6004EVAL3 TRANSIENT RESPONSE WITH C20-23 REMOVED 2.90 2.80 2.70 -5% REGULATION TIME (25 s/DIV) FIGURE 11. EXPANDED VIEW OF LEADING EDGE OF ...

Page 6

... Conclusion The HIP6004EVAL3 and HIP6005EVAL3 are reference designs suitable for a DC-DC converter solution for the Pentium Pro and other high-performance microprocessors. References For Intersil documents available on the web, see http://www.intersil.com/ [1] Pentium-Pro Processor Power Distribution Guidelines, Intel Application Note AP-523, November, 1995. ...

Page 7

... CR2 LGATE Q2 MBR340 16 PGND 11 GND R9 12.1K TP6 COMP R10 C7 R7 SPARE SPARE SPARE C14 R8 1K 0.1 F HIP6004EVAL3 SCHEMATIC VCC5 JP5 VCC5 PWRGOOD B109 TP7 A12 R11 10K +VO OUT TP3 SLOT 1 EDGE CONNECTOR VCCP + C16 - C24 9X 1000 F VSS RTN B120 A120 A119 ...

Page 8

... Bill of Materials for HIP6004EVAL3 PART NUMBER 25MV330GX 330 F, 25V Aluminum Capacitor 6MV1000GX 1000 F, 6.3V Aluminum Capacitor 1206YZ105MAT1A 1.0 F, 16V, X7S Ceramic Capacitor 1000pF Ceramic 1nF, X7R Ceramic Capacitor 0.1 F Ceramic 0 X7R Ceramic Capacitor 0.01 F Ceramic 0.01 F, X7R Ceramic Capacitor 33pF Ceramic ...

Page 9

15A Q3 2N6394 +12V GND GND C15 0.1 F VCC SOFT 18 START MONITOR TP5 SS 3 AND PROTECTION C6 VSEN 1 0 OSC SPARE VID0 4 U1 VID1 5 HIP6005 ...

Page 10

... C8 Various 1 C9 Various C7 1 CR1 Various 2 CR2-3 Microsemi 1 L2 Coiltronics Pulse 1 L1 Coiltronics Pulse 1 Q1 Intersil 1 Q3 Motorola 1 U1 Intersil 1 R11 Various R2, R7, R10 1 R5 Various 1 R4 Various 1 R3 Various 1 R8 Various 1 R6 Various 1 R9 Various 1 AMP Molex 1 F1 Littelfuse ...

Page 11

Board Description 11 Application Note 9706 SILK SCREEN COMPONENT SIDE ...

Page 12

Board Description (Continued) 12 Application Note 9706 GND LAYER INTERNAL ONE ...

Page 13

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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