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HIP6028EVAL1

更新时间: 2024-11-22 22:24:35
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英特矽尔 - INTERSIL /
页数 文件大小 规格书
16页 143K
描述
Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface

HIP6028EVAL1 数据手册

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HIP6028  
Data Sheet  
May 1998  
File Number 4630  
Advanced PWM and Dual Linear Power  
Control with Integrated ACPI Support  
Interface  
Features  
• Provides 3 Regulated Voltages  
- Microprocessor Core, Clock and GTL Power  
• Integrated ACPI S3-State Shutdown Support  
The HIP6028 provides the power control and protection for  
three output voltages in high-performance microprocessor  
and computer applications. The IC integrates a PWM  
controller, a linear regulator and a linear controller as well as  
the monitoring and protection functions into a single  
• Drives Low Cost Transistors  
- PWM Controller Drives N-MOSFETs  
- Linear Controller Compatible with Both MOSFETs and  
NPN Bipolar Transistors  
• Operates from +3.3V, +5V and +12V Inputs  
• Simple Control Design  
- Single-Loop Voltage-Mode PWM Control  
- Fixed 1.5V GTL Output Voltage  
- Fixed 2.5V Clock Output Voltage  
• Fast Transient Response  
package. The PWM controller regulates the microprocessor  
core voltage with a synchronous-rectified buck converter.  
The linear controller regulates power for the GTL bus and  
the linear regulator provides power for the clock driver circuit.  
The HIP6028 includes an Intel-compatible, TTL 5-input  
digital-to-analog converter (DAC) that adjusts the core PWM  
- High-Bandwidth Error Amplifier  
- Full 0% to 100% Duty Ratio  
output voltage from 2.1V  
to 3.5V  
in 0.1V increments  
in 0.05V steps. The precision  
DC  
DC  
to 2.05V  
DC  
and from 1.3V  
DC  
• Excellent Output Voltage Regulation  
- Core PWM Output: ±1% Over Temperature  
- Other Outputs: ±2.5% Over Temperature  
reference and voltage-mode control provide ±1% static  
regulation. The linear regulator uses an internal pass device  
to provide a fixed 2.5V ±2.5%. The linear controller drives an  
external N-channel MOSFET to provide a fixed 1.5V ±2.5%.  
• TTL-compatible 5-Bit Digital-to-Analog Core Output  
Voltage Selection  
The HIP6028 monitors all the output voltages. A single  
Power Good signal is issued when the core is within ±10% of  
the DAC setting and the other levels are above their under-  
voltage levels. Additional built-in over-voltage protection for  
the core output uses the lower MOSFET to prevent output  
voltages above 115% of the DAC setting. The PWM over-  
current function monitors the output current by using the  
- Wide Range . . . . . . . . . . . . . . . . . . . 1.3V  
• Power-Good Output Voltage Monitor  
to 3.5V  
DC  
DC  
• Microprocessor Core Voltage Protection Against Shorted  
MOSFET  
• Over-Voltage and Over-Current Fault Monitors  
- Does Not Require Extra Current Sensing Element,  
Uses MOSFET’s r  
DS(ON)  
voltage drop across the upper MOSFET’s r  
,
• Small Converter Size  
DS(ON)  
eliminating the need for a current sensing resistor.  
- Constant Frequency Operation; 200kHz Free-Running  
Oscillator; Programmable from 50kHz to 1MHz  
The HIP6028 offers integrated ACPI S3 shutdown state  
support. Through the SD1&3 pin, the microprocessor core  
and GTL bus supplies can be shut down when entering  
power-saving standby operation mode.  
Applications  
Full Motherboard Power Regulation for Computers  
Low-Voltage Distributed Power Supplies  
Pinout  
Ordering Information  
HIP6028 (SOIC)  
TOP VIEW  
TEMP.  
RANGE  
( C)  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
VCC  
VID4  
1
2
3
4
5
6
7
8
9
UGATE  
PHASE  
LGATE  
PGND  
OCSET  
VSEN1  
FB  
o
PART NUMBER  
HIP6028CB  
PACKAGE  
24 Ld SOIC  
PKG. NO.  
0 to 70  
M24.3  
VID3  
VID2  
HIP6028EVAL1  
Evaluation Board  
VID1  
VID0  
PGOOD  
FAULT  
SS  
COMP  
VSEN3  
DRIVE3  
GND  
RT 10  
SD1&3 11  
VIN2 12  
VOUT2  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
2-311  

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