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Data Sheet
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ur Tech
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ontact o RSIL or www.in
c
TE
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®
ISL6595
December 4, 2008
FN9192.2
Digital Multiphase Controller
The ISL6595 digital multiphase controller provides core
power for today’s high current microprocessors by driving up
to six synchronous-rectified buck-converter channels in
parallel. Interleaved timing of the channels results in a higher
ripple frequency, reducing input and output ripple. With up to
six phases, each capable of up to 2MHz operation, the
ISL6595 can be used to build DC/DC converters that provide
up to 200A with excellent efficiency, low ripple, and the
lowest component count.
The ISL6595 utilizes digital technology to implement all
control functions, providing the ultimate in flexibility and
stability. The ISL6595 incorporates an industry standard I
2
C
serial interface for control and monitoring. Through the serial
interface, the power supply designer can quickly optimize
designs and monitor parameters. The interface allows the
ISL6595 to provide digitized information for real time system
monitoring and control.
The ISL6595 provides superior loadline accuracy through
internal calibration that measures and corrects current sense
error sources upon start-up. The ISL6595 has
programmable current sense temperature compensation
that allows the designer to tailor the response for best
loadline accuracy over-temperature. Superior loadline
accuracy reduces component count and solution cost.
To further reduce component count the ISL6595
incorporates patented Active Transient Response (ATR)
technology, allowing the fastest response to transient events
for reduced output capacitance.
The flexibility of the ISL6595 allows the power supply
designer to implement a wide range of solutions. When used
with industry standard power train components, the ISL6595
provides the highest performance with lowest component
count and cost.
Features
• Multiphase Power Conversion
- 1-Phase to 6-Phase Operation
• 100kHz to 2MHz Switching Frequency
• Supports Intel™ VR10.x and VR11.0 VID Codes
• Supports AMD™ 5-bit and 6-bit VID Codes
• Internal High Precision Voltage Reference
- ±10mV Voltage Setpoint Accuracy
• Precision Digital Current Sense Calibration
• Precise Digital Current Balancing with Programmable
Offsets for Thermal Balancing
• Digitally Programmable Loadline and Loop Compensation
• Differential Voltage Sense
• Digital Temperature Sensor Compensation
• Active Transient Response (ATR) Enables Meeting
Transient Requirements With Reduced Output
Capacitance
• I
2
C Interface for Monitoring, Control and Configuration
• Internal Non-Volatile Memory (NVM) to Store Custom
Configurations
• Extensive Fault Detection Capability With Two User
Configurable Output Fault Pins (FAULT1, FAULT2)
- Input Undervoltage
- Output Under/Overvoltage
- High Side Short
- Per Phase and Total Output Current
- Multiple internal and External Temperature Limits
- NVM Configuration
- Calibration Range and Time-Out
• Configurable Latched Fault or Autonomous Recovery
Shutdown
• Single +3.3V Supply Operation
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG #
• Pb-Free (RoHS compliant)
• 48 Ld QFN Plastic Package
ISL6595DRZ* ISL6595 DRZ
0 to +85 48 Ld 7x7 QFN L48.7x7P
*Add “-T” or “-TK” 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.
Applications
• Core Power Regulation For Intel™ and AMD™
Micro-Processors
• Intelligent Point-of-Load (POL) Power Regulation
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. 2006, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL6595
Absolute Maximum Ratings
Supply Voltage, V
DD
. . . . . . . . . . . . . . . . . . . . . . . . -0.50V to 4.25V
All Pins Except ISENx, VSENP,
VSENN and GND . . . . . . . . . . . . . . . . . . . . . . . . . -0.50V to 4.25V
All ISENx, VSENP, VSENN Pins . . . . . . . . . . . . . . . . -0.50V to 3.0V
All Ground Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.50V to 0.50V
Vapor Phase (60s), T
VAPOR
. . . . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15s), T
IR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
Thermal Information
Thermal Resistance (Typical, Notes 1, 2)
θ
JA
(°C/W)
θ
JC
(°C/W)
48 Ld QFN Package. . . . . . . . . . . . . . .
31
3
Maximum Junction Temperature (Plastic Package) . 0°C to +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
Recommended Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +85°C
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . +3.0V to +3.60V
Operating Case Temperature . . . . . . . . . . . . . . . . . . 0°C to +125°C
Operating Ambient Temperature . . . . . . . . . . . . . . . . . 0°C to +85°C
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.
1.
θ
JA
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
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
V
DD
= +3.3V, T
C
= +25°C, 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
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PARAMETER
VDD SUPPLY
Nominal Supply Current
RESET_N
Input LOW Voltage
Input HIGH Voltage
Input Current, Input Voltage LOW
Input Current, Input Voltage HIGH
I
VDD
-
100
140
mA
-0.3
2.8
VIN = 0.0V
VIN = 3.5V
-75
-
-
-
-
-
0.5
3.6
-10
-
V
V
µA
µA
VID[7:0], OUTEN, LL0, LL1, VID_SEL (Note 3)
Input Low Voltage
Input High Voltage (Note 4)
Input Current, Input Voltage Low
Input Current, Input Voltage High
OUTEN INPUT
Input Threshold
Input Hysteresis
Input Bandwidth
SDA, SCL INPUTS
Input LOW Voltage
Input HIGH Voltage
Input Current, Input Voltage Low
Input Current, Input Voltage High
Output LOW Voltage
VSENP, VSENN INPUTS
VSENN Voltage (Note 5)
-0.3
-
0.3
V
V
IL_S
V
IH_S
I
IL_S
I
IH_S
VIN = 0.0V
VIN = 3.5V
-0.3
2.4
-10
-10
-
-
-
-
-
-
0.8
5.5
10
10
0.4
V
V
µA
µA
V
V
T_VR_EN
V
H_VR_EN
0.8
-
-
0.85
100
-
0.9
-
20
V
mV
MHz
VIN = 0.0V
VIN = 3.5V
-0.3
0.8
-
-
-
-
-20
15
0.4
5.5
-30
25
V
V
µA
µA
5
FN9192.2
December 4, 2008
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