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ISL6327A の電気的特性と機能

ISL6327AのメーカーはIntersil Corporationです、この部品の機能は「Enhanced 6-Phase PWM Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL6327A
部品説明 Enhanced 6-Phase PWM Controller
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL6327A Datasheet, ISL6327A PDF,ピン配置, 機能
www.DataSheet4U.com
®
Data Sheet
February 17, 2009
ISL6327A
FN6833.0
Enhanced 6-Phase PWM Controller with
8-Bit VID Code and Differential Inductor
DCR or Resistor Current Sensing
The ISL6327A controls microprocessor core voltage
regulation by driving up to 6 synchronous-rectified buck
channels in parallel. Multiphase buck converter architecture
uses interleaved timing to multiply channel ripple frequency
and reduce input and output ripple currents. Lower ripple
results in fewer components, lower component cost, reduced
power dissipation, and smaller implementation area.
Microprocessor loads can generate load transients with
extremely fast edge rates. The ISL6327A utilizes Intersil’s
proprietary Active Pulse Positioning (APP) and Adaptive
Phase Alignment (APA) modulation scheme to achieve the
extremely fast transient response with fewer output
capacitors.
Today’s microprocessors require a tightly regulated output
voltage position versus load current (droop). The ISL6327A
senses the output current continuously by utilizing patented
techniques to measure the voltage across the dedicated
current sense resistor or the DCR of the output inductor.
Current sensing provides the needed signals for precision
droop, channel-current balancing, and overcurrent
protection. A programmable integrated temperature
compensation function is implemented to effectively
compensate the temperature variation of the current sense
element. The current limit function provides the overcurrent
protection for the individual phase.
A unity gain, differential amplifier is provided for remote
voltage sensing. Any potential difference between remote
and local grounds can be completely eliminated using the
remote-sense amplifier. Eliminating ground differences
improves regulation and protection accuracy. The
threshold-sensitive enable input is available to accurately
coordinate the start-up of the ISL6327A with any other
voltage rail. Dynamic-VID™ technology allows seamless
on-the-fly VID changes. The offset pin allows accurate
voltage offset settings that are independent of VID setting.
Features
• Proprietary Active Pulse Positioning and Adaptive Phase
Alignment Modulation Scheme
• Precision Multiphase Core Voltage Regulation
- Differential Remote Voltage Sensing
- ±0.5% System Accuracy Over Life, Load, Line and
Temperature
- Adjustable Precision Reference-Voltage Offset
• Precision Resistor or DCR Current Sensing
- Accurate Load-Line Programming, Channel-Current
Balancing, Differential Current Sense
• Microprocessor Voltage Identification Input
- Dynamic VID™ Technology
- 8-Bit VID Input with Selectable VR11 code and
Extended VR10 Code at 6.25mV Per Bit
- 0.5V to 1.600V Operation Range
• Monotonic Output Voltage Soft-start
• Thermal Monitoring
• Integrated Programmable Temperature Compensation
• Overcurrent Protection and Channel Current Limit
• Overvoltage Protection with OVP Output Indication
• 2-, 3-, 4-, 5- or 6-Phase Operation
• Adjustable Switching Frequency up to 1MHz Per Phase
• Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad
Flat No Leads - Product Outline
- QFN Near Chip Scale Package Footprint; Improves
PCB Efficiency, Thinner in Profile
• Pb-Free (RoHS Compliant)
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP.
(°C)
PACKAGE PKG.
(Pb-Free) DWG. #
ISL6327ACRZ* ISL6327A CRZ 0 to +70 48 Ld 7x7 QFN L48.7x7
ISL6327AIRZ* ISL6327A IRZ -40 to +85 48 Ld 7x7 QFN L48.7x7
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special
Pb-free material sets, molding compounds/die attach materials, and
100% matte tin plate plus anneal (e3 termination finish, which is RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations). Intersil Pb-free products are MSL classified at Pb-free peak
reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL6327A pdf, ピン配列
www.IDSatLaS6h3ee2t47UA.coBmlock Diagram
VDIFF VR_RDY
OVP
ISL6327A
VCC
RGND
VSEN
X1
OVP
+175MV
S OVP R
DRIVE
Q
SOFT-START
AND
FAULT LOGIC
POWER-ON
RESET (POR)
0.875V
EN_VTT
0.875V
EN_PWR
CLOCK AND
RAMP
GENERATOR
THREE-STATE
FS
SS
APP AND APA
PWM1
MODULATOR
OFS
REF
DAC
VRSEL
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
COMP
FB
IOUT
IDROOP
OFFSET
APP AND APA
MODULATOR
APP AND APA
MODULATOR
APP AND APA
MODULATOR
DYNAMIC
VID
D/A
2V
OC2
APP AND APA
MODULATOR
E/A APP AND APA
MODULATOR
CHANNEL CURRENT
BALANCE AND
CURRENT LIMIT
CHANNEL
DETECT
OC1
I_TRIP
1
N
I_TOT
TEMPERATURE
COMPENSATION
CHANNEL
CURRENT
SENSE
THERMAL
MONITORING
GND
TM VR_FAN VR_HOT
3
TEMPERATURE
COMPENSATION
GAIN
TCOMP
PWM2
PWM3
PWM4
PWM5
PWM6
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
ISEN5+
ISEN5-
ISEN6+
ISEN6-
FN6833.0
February 17, 2009


3Pages


ISL6327A 電子部品, 半導体
ISL6327A
www.ADabtasSohleuette4UM.caoxmimum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+6V
All Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . GND -0.3V to VCC + 0.3V
Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Ambient Temperature
ISL6327ACRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
ISL6327AIRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) θJA (°C/W) θJC (°C/W)
48 Ld QFN Package. . . . . . . . . . . . . . .
32
3.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Operating Conditions: VCC = 5V, Unless Otherwise Specified. Parameters with MIN and/or MAX limits are 100%
tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not
production tested.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply
VCC = 5VDC; EN_PWR = 5VDC; RT = 100kΩ,
ISEN1 = ISEN2 = ISEN3 = ISEN4 = ISEN5 = ISEN6 = -70µA
- 18 26 mA
Shutdown Supply
POWER-ON RESET AND ENABLE
VCC = 5VDC; EN_PWR = 0VDC; RT = 100kΩ
- 14 21 mA
POR Threshold
VCC Rising
4.3 4.5 4.7
V
VCC Falling
3.7 3.9 4.2
V
EN_PWR Threshold
Rising
0.850 0.875 0.910 V
Hysteresis
- 130 -
mV
Falling
0.720 0.745 0.775 V
EN_VTT Threshold
Rising
0.850 0.875 0.910 V
Hysteresis
- 130 -
mV
Falling
0.720 0.745 0.775 V
REFERENCE VOLTAGE AND DAC
System Accuracy of ISL6327ACRZ
(VID = 1V to 1.6V), TJ = 0°C to +70°C
System Accuracy of ISL6327ACRZ
(VID = 0.5V to 1V), TJ = 0°C to +70°C
System Accuracy of ISL6327AIRZ
(VID = 1V to1.6V), TJ = -40°C to +85°C
System Accuracy of ISL6327AIRZ
(VID = 0.5V to 1V), TJ = -40°C to +85°C
VID Pull-up
(Note 3)
(Note 3)
(Note 3)
(Note 3)
-0.5 - 0.5 %VID
-0.9 - 0.9 %VID
-0.6 - 0.6 %VID
-1 -
1 %VID
-60 -40 -20 µA
VID Input Low Level
- - 0.4 V
VID Input High Level
0.8 - - V
VRSEL Input Low Level
- - 0.4 V
VRSEL Input High Level
0.8 - - V
DAC Source Current
- 4 7 mA
6 FN6833.0
February 17, 2009

6 Page



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部品番号部品説明メーカ
ISL6327

Enhanced 6-Phase PWM Controller

Intersil Corporation
Intersil Corporation
ISL6327A

Enhanced 6-Phase PWM Controller

Intersil Corporation
Intersil Corporation


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