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HIP6028 の電気的特性と機能

HIP6028のメーカーはIntersil Corporationです、この部品の機能は「Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface」です。


製品の詳細 ( Datasheet PDF )

部品番号 HIP6028
部品説明 Advanced PWM and Dual Linear Power Control with Integrated ACPI Support Interface
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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HIP6028 Datasheet, HIP6028 PDF,ピン配置, 機能
Data Sheet
HIP6028
May 1998
File Number 4630
Advanced PWM and Dual Linear Power
Control with Integrated ACPI Support
Interface
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
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
output voltage from 2.1VDC to 3.5VDC in 0.1V increments
and from 1.3VDC to 2.05VDC 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 a fixed 2.5V ±2.5%. The linear controller drives an
external N-channel MOSFET to provide a fixed 1.5V ±2.5%.
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
voltage drop across the upper MOSFET’s rDS(ON),
eliminating the need for a current sensing resistor.
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.
Ordering Information
PART NUMBER
TEMP.
RANGE
(oC)
PACKAGE
HIP6028CB
0 to 70 24 Ld SOIC
HIP6028EVAL1 Evaluation Board
PKG. NO.
M24.3
Features
• Provides 3 Regulated Voltages
- Microprocessor Core, Clock and GTL Power
• Integrated ACPI S3-State Shutdown Support
• 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
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
• 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 . . . . . . . . . . . . . . . . . . . 1.3VDC to 3.5VDC
• 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 rDS(ON)
• Small Converter Size
- Constant Frequency Operation; 200kHz Free-Running
Oscillator; Programmable from 50kHz to 1MHz
Applications
Full Motherboard Power Regulation for Computers
Low-Voltage Distributed Power Supplies
Pinout
HIP6028 (SOIC)
TOP VIEW
VCC 1
VID4 2
VID3 3
VID2 4
VID1 5
VID0 6
PGOOD 7
FAULT 8
SS 9
RT 10
SD1&3 11
VIN2 12
24 UGATE
23 PHASE
22 LGATE
21 PGND
20 OCSET
19 VSEN1
18 FB
17 COMP
16 VSEN3
15 DRIVE3
14 GND
13 VOUT2
2-311
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

1 Page





HIP6028 pdf, ピン配列
Simplified Power System Diagram
+5VIN
+3.3VIN
VOUT2
VOUT3
Q3
HIP6028
LINEAR
REGULATOR
HIP6028
PWM
CONTROLLER
LINEAR
CONTROLLER
Q1
Q2
VOUT1
Typical Application
+12VIN
+5VIN
CIN
+3.3VIN
VOUT2
2.5V
COUT2
VOUT3
1.5V
Q3
COUT3
FIGURE 2.
VIN2
VOUT2
DRIVE3
VSEN3
SD1&3
VID0
VID1
VID2
VID3
VID4
VCC
OCSET
PGOOD
UGATE
PHASE
HIP6028
LGATE
PGND
VSEN1
FB
COMP
POWERGOOD
Q1 LOUT1
VOUT1
1.3V TO 3.5V
Q2
COUT1
GND
FAULT
RT
SS
CSS
FIGURE 3.
2-313


3Pages


HIP6028 電子部品, 半導体
HIP6028
Functional Pin Description
VSEN1 (Pin 19)
This pin is connected to the PWM converter’s output voltage.
The PGOOD and OVP comparator circuits use this signal to
report output voltage status and for over voltage protection.
OCSET (Pin 20)
Connect a resistor (ROCSET) from this pin to the drain of the
upper MOSFET. ROCSET, an internal 200µA current source
(IOCSET), and the upper MOSFET on-resistance (rDS(ON))
set the PWM converter over-current (OC) trip point
according to the following equation:
IPEAK = I--O-----C----S----Er--D--T---S--×--(--OR----N-O---)--C----S----E----T-
An over-current trip cycles the soft-start function. Sustaining
an over-current for 2 soft-start intervals shuts down the
controller.
SS (Pin 9)
Connect a capacitor from this pin to ground. This capacitor,
along with an internal 11µA (typically) current source, sets
the soft-start interval of the PWM converter and GTL
controller.
VID0, VID1, VID2, VID3, VID4 (Pins 6, 5, 4, 3 and 2)
VID0-4 are the input pins to the 5-bit DAC. The states of
these five pins program the internal voltage reference
(DACOUT). The level of DACOUT sets the core converter
output voltage. It also sets the core PGOOD and OVP
thresholds.
COMP and FB (Pins 17 and 18)
COMP and FB are the available external pins of the PWM
error amplifier. The FB pin is the inverting input of the error
amplifier and the COMP pin is the error amplifier output.
These pins are used to compensate the voltage-control
feedback loop of the PWM converter.
GND (Pin 14)
Signal ground for the IC. All voltage levels are measured with
respect to this pin.
PGOOD (Pin 7)
PGOOD is an open collector output used to indicate the
status of the output voltages. This pin is pulled low when the
core output is not within ±10% of the DACOUT reference
voltage and the other outputs are below their under-voltage
thresholds.
The PGOOD output is open for “11111” VID code
combination.
PHASE (Pin 23)
Connect the PHASE pin to the PWM converter’s upper
MOSFET source. This pin is used to monitor the voltage
drop across the upper MOSFET for over-current protection.
UGATE (Pin 24)
Connect UGATE pin to the PWM converter’s upper MOSFET
gate. This pin provides the gate drive for the upper MOSFET.
PGND (Pin 21)
This is the power ground connection. Tie the PWM
converter’s lower MOSFET source to this pin.
LGATE (Pin 22)
Connect LGATE to the PWM converter’s lower MOSFET
gate. This pin provides the gate drive for the lower MOSFET.
VCC (Pin 1)
Provide a 12V bias supply for the IC to this pin. This pin also
provides the gate bias charge for all the MOSFETs
controlled by the IC.
RT (Pin 10)
This pin provides oscillator switching frequency adjustment.
By placing a resistor (RT) from this pin to GND, the nominal
200kHz switching frequency is increased according to the
following equation:
Fs 200kHz + R-5----T-×---(--1k---0----6--)
(RT to GND)
Conversely, connecting a pull-up resistor (RT) from this pin
to VCC reduces the switching frequency according to the
following equation:
Fs 200kHz – -R4----T-×---(--1k---0----7--)
(RT to 12V)
FAULT (Pin 8)
This pin is low during normal operation, but it is pulled to
VCC in the event of an over-voltage or over-current
condition.
DRIVE3 (Pin 15)
Connect this pin to the gate of an external N-MOSFET or the
base of an external NPN bipolar transistor. This pin provides
the drive for the linear controller’s pass transistor.
VSEN3 (Pin 16)
Connect this pin to the linear controller’s pass MOSFET
source. The voltage at this pin is regulated to 1.5V.
VOUT2 (Pin 13)
Output of the linear regulator. The voltage at this pin is
regulated to 2.5V for output currents up to 230mA (typically).
SD1&3 (Pin 11)
A TTL-compatible, high level signal applied to this pin
disables the PWM (VOUT1) and linear controller (VOUT3)
outputs. Leaving this pin unconnected or connecting it to
ground enables these two outputs.
2-316

6 Page



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