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PDF ISL78211 Data sheet ( Hoja de datos )
| Número de pieza | ISL78211 | |
| Descripción | Automotive Single-Phase Core Regulator | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Automotive Single-Phase Core Regulator for
IMVP-6™ CPUs
ISL78211
The ISL78211 is a single-phase buck regulator
implementing lntel™ IMVP-6™ protocol, with embedded
gate drivers. lntel™ Mobile Voltage Positioning (IMVP) is
a smart voltage regulation technology effectively
reducing power dissipation in lntel™ Pentium processors.
The heart of the ISL78211 is the patented R3
Technology™, Intersil’s Robust Ripple Regulator
modulator. Compared with the traditional multi-phase
buck regulator, the R3 Technology™ has faster transient
response. This is due to the R3 modulator commanding
variable switching frequency during a load transient.
The ISL78211 provides three operation modes: the
Continuous Conduction Mode (CCM), the Diode
Emulation Mode (DEM) and the Enhanced Diode
Emulation Mode (EDEM). To boost battery life, the
ISL78211 changes its operation mode based on CPU
mode signals DPRSLRVR and DPRSTP#, and the FDE pin
setting, to maximize the efficiency. In CPU active mode,
the ISL78211 commands the CCM operation. When the
CPU enters deeper sleep mode, the ISL78211 enables
the DEM to maximize the efficiency at light load.
Asserting the FDE pin of the ISL78211 in CPU deeper
sleep mode will enable the EDEM to further decrease the
switching frequency at light load and increase the
regulator efficiency.
A 7-bit Digital-to-Analog Converter (DAC) allows dynamic
adjustment of the core output voltage from 0.300V to
1.500V. The ISL78211 has 0.8% system voltage
accuracy over entire temperature.
A unity-gain differential amplifier provides remote
voltage sensing at the CPU die. This allows the voltage on
the CPU die to be accurately measured and regulated per
lntel™ IMVP-6 specification. Current sensing can be
implemented through either lossless inductor DCR
sensing or precise resistor sensing. If DCR sensing is
used, an NTC thermistor network will thermally
compensates the gain and the time constant variations
caused by the inductor DCR change.
The ISL78211 provides the power monitor function
through the PMON pin. PMON output is a high-bandwidth
analog voltage signal representing the CPU
instantaneous power. The power monitor function can be
used by the system to optimize the overall power
consumption, extending battery run time.
The ISL78211 is fully TS16949 compliant and tested to
AEC-Q100 specifications.
Features
• Precision single-phase CORE voltage regulator
- 0.5% system accuracy over -10°C to 100°C
temperature range
- 0.8% system accuracy over entire temperature
range
- Enhanced load line accuracy
• Internal gate driver with 2A driving capability
• Microprocessor voltage identification input
- 7-Bit VID input
- 0.300V to 1.500V in 12.5mV steps
- Support VID change on-the-fly
• Multiple current sensing schemes supported
- Lossless inductor DCR current sensing
- Precision resistive current sensing
• Thermal monitor
• Power monitor indicating CPU instantaneous power
• User programmable switching frequency
• Differential remote voltage sensing at CPU die
• Overvoltage, undervoltage, and overcurrent
protection
• TS16949 Compliant
• AEC-Q100 tested
• Pb-free (RoHS compliant)
March 8, 2010
FN7578.0
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. 2010. All Rights Reserved. R3 Technology™ is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
ISL78211
Absolute Maximum Ratings
Supply Voltage (VDD) . . . . . . . . . . . . . . . . . . . .-0.3 to +7V
Battery Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . +28V
Boot Voltage (BOOT) . . . . . . . . . . . . . . . . . . -0.3V to +33V
Boot to Phase Voltage (BOOT-PHASE) . . . . -0.3V to +7V(DC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +9V(<10ns)
Phase Voltage (PHASE) . . . . . -7V (<20ns Pulse Width, 10µJ)
UGATE Voltage (UGATE) . . . . . . . PHASE-0.3V (DC) to BOOT
. . . . . . . . . PHASE-5V (<20ns Pulse Width, 10µJ) to BOOT
LGATE Voltage (LGATE) . . . . . . . . . -0.3V (DC) to VDD+0.3V
. . . . . . . . . . -2.5V (<20ns Pulse Width, 5µJ) to VDD+0.3V
All Other Pins. . . . . . . . . . . . . . . . . . -0.3V to (VDD +0.3V)
Open Drain Outputs, PGOOD, VR_TT# . . . . . . . -0.3 to +7V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . 3000V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . 2000V
Latch Up . . . . . . . . . . . . . . . . . . . . . (Tested per JESD-78A)
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)θJA (°C/W)θJC (°C/W)
QFN Package . . . . . . . . . . . . . . . .
33
6
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
Recommended Operating Conditions
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . . +5V to 21V
Ambient Temperature
ISL78211ARZ . . . . . . . . . . . . . . . . . . . . .-40°C to 105°C
Junction Temperature
ISL78211ARZ . . . . . . . . . . . . . . . . . . . -40°C to +125°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.
NOTES:
4. 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.
5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications VDD = 5V, TA = -40°C to +105°C, unless otherwise specified. Boldface limits apply over
the operating temperature range, -40°C to +105°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7) UNITS
INPUT POWER SUPPLY
+5V Supply Current
IVDD
VR_ON = 3.3V
VR_ON = 0V
- 3.1 3.6 mA
- - 1 µA
+3.3V Supply Current
I3V3
No load on CLK_EN# pin
-
-
1 µA
Battery Supply Current at
IVIN VR_ON = 0, VIN = 25V
-
-
1 µA
VIN Pin
POR (Power-On Reset)
Threshold
SYSTEM AND REFERENCES
PORr
PORf
VDD rising
VDD falling
-
3.85
4.35
4.1
4.5 V
-V
System Accuracy
%Error
(VCC_CORE)
No load, close loop, active
mode, TA =-10°C to +100°C,
VID = 0.75V to 1.5V
-0.5
-
0.5 %
VID = 0.5V to 0.7375V
-8
-
8 mV
VID = 0.3V to 0.4875V
-15
-
15 mV
%Error
(VCC_CORE)
No load, close loop, active
mode, VID = 0.75V to 1.5V
VID = 0.5V to 0.7375V
-0.8
-10
-
-
0.8 %
10 mV
VID = 0.3V to 0.4875V
-18
-
18 mV
RBIAS Voltage
Boot Voltage
Maximum Output Voltage
Minimum Output Voltage
VID Off State
RRBIAS
RRBIAS = 147kΩ
VBOOT
VCC_CORE (max) VID = [0000000]
VCC_CORE (min) VID = [1100000]
VID = [1111111]
1.45
1.188
-
-
-
1.47
1.2
1.5
0.3
0.0
1.49
1.212
-
-
-
V
V
V
V
V
CHANNEL FREQUENCY
Nominal Channel Frequency
fSW RFSET = 7kΩ, VCOMP = 2V
318
333
348
kHz
5
FN7578.0
March 8, 2010
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
ISL78211
Simplified Application Circuit for Resistive Current Sensing
V+3.3
V+5
R4
VIN
C4
R5
R6
C5
VR_TT#
VID<0:6>
DPRSTP#
DPRSLPVR
PMON
CLK_ENABLE#
VR_ON
IMVP6_PWRGD
VCC-SENSE
VSS-SENSE
C3
R2
R7
C7
C2
R3 C1
R1
3V3
RBIAS
VDD
VCCP
VIN
NTC
SOFT
UGATE
BOOT
VR_TT#
VIDs
PHASE
DPRSTP#
DPRSLPVR
FDE
LGATE
PMON
VSSP
CLK_EN#
VR_ON
PGOOD
VSUM
VSEN
RTN
ISL6261A
VO
VW
OCSET
C6
C9
R10
COMP
DFB
FB
VDIFF
DROOP
VSS
C8
LO
RSEN
VO
CO
R8
R11
C10
R12
FIGURE 3. ISL78211-BASED IMVP-6® SOLUTION WITH RESISTIVE CURRENT SENSING
11
FN7578.0
March 8, 2010
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ISL78211.PDF ] | |
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