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參數(shù)資料
| 型號： | FN4496 |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Advanced PWM and Dual Linear Power Control |
| 中文描述： | 先進(jìn)的雙PWM和線性功率控制 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 323K |
| 代理商： | FN4496 |
210
TM
HIP6017
Advanced PWM and Dual Linear Power
Control
The HIP6017 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 28 lead
SOIC 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 circuits.
The HIP6017 includes an Intel-compatible, TTL 5-input
digital-to-analog converter (DAC) that adjusts the core PWM
output voltage from 2.1V
DC
to 3.5V
DC
in 0.1V increments
and from 1.8V
DC
to 2.05V
DC
in 0.05V steps. The precision
reference and voltage-mode control provide
±
1% static
regulation. The linear regulator uses an internal pass device
to provide 2.5V
±
2.5%. The linear controller drives an
external N-Channel MOSFET to provide 1.5V
±
2.5%.
The HIP6017 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
voltage drop across the upper MOSFET’s r
DS(ON)
, thus
eliminating the need for a current sensing resistor.
Pinout
HIP6017 (SOIC)
TOP VIEW
Features
Provides 3 Regulated Voltages
- Microprocessor Core, Clock and GTL Power
Drives N-Channel MOSFETs
Operates from +3.3V, +5V and +12V Inputs
Simple Single-Loop PWM Control Design
- Voltage-Mode Control
Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratios
Excellent Output Voltage Regulation
- Core PWM Output:
±
1% Over Temperature
- Other Outputs:
±
2.5% Over Temperature
TTL-Compatible 5-Bit Digital-to-Analog Core Output
Voltage Selection
- Wide Range . . . . . . . . . . . . . . . . . . . 1.8V
DC
to 3.5V
DC
- 0.1V Steps . . . . . . . . . . . . . . . . . . . . 2.1V
DC
to 3.5V
DC
- 0.05V Steps . . . . . . . . . . . . . . . . . . 1.8V
DC
to 2.05V
DC
Power-Good Output Voltage Monitor
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)
Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable from
50kHz to over 1MHz
Applications
Full Motherboard Power Regulation for Computers
Low-Voltage Distributed Power Supplies
NC
NC
VID4
VID3
V33
NC
SS
FAULT/RT
FB2
VCC
PGND
LGATE1
PHASE1
GATE3
COMP1
GND
VOUT2
VIN2
UGATE1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PGOOD
VID2
GND2
VSEN1
FB3
VID1
VID0
OCSET1
FB1
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG. NO.
HIP6017CB
0 to 70
28 Ld SOIC
M28.3
HIP6017EVAL1
Evaluation Board
Data Sheet
April 1999
FN4496.1
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 trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
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