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ISL62881C の電気的特性と機能

ISL62881CのメーカーはIntersil Corporationです、この部品の機能は「Single-Phase PWM Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL62881C
部品説明 Single-Phase PWM Regulator
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL62881C Datasheet, ISL62881C PDF,ピン配置, 機能
Single-Phase PWM Regulator for IMVP-6.5™ Mobile
CPUs and GPUs
ISL62881C, ISL62881D
The ISL62881C provides a complete solution for
microprocessor and graphic processor core power supply
with it’s integrated gate drive. Based on Intersil’s Robust
Ripple regulator (R3™) technology, the PWM modulator
compared to traditional modulators, has faster transient
settling time, variable switching frequency during load
transients and has improved light load efficiency with its
ability to automatically change switching frequency.
Fully compliant with IMVP6.5™, the ISL62881C is easily
configurable as a CPU or graphics VCORE controllers by
offering: responds to DPRSLPVR signals by
entering/exiting diode emulations mode; reports
regulator output current via the IMON pin; senses
current by using a discrete resistor or the inductor;
over-temperature thermal compensation of DCR, using a
single NTC thermistor; differential sensing to accurately
monitor and adjust processor die voltage; minimizes
body diode conduction loss in diode emulation mode with
it’s adaptive body diode conduction time.
Need to aggressively reduce the output capacitor? The
overshoot reduction function is user-selectable and can
be disabled for those concerned about increased system
thermal stress.
Maintaining all the ISL62881C functions, the ISL62881D
offers VR_TT# function for thermal throttling control. It
also offers the split LGATE function to further improve
light load efficiency.
Features
• Precision Core Voltage Regulation
- 0.5% System Accuracy Over-Temperature
- Enhanced Load Line Accuracy
• Supports Multiple Current Sensing Methods
- Lossless Inductor DCR Current Sensing
- Precision Resistor Current Sensing
• Current Monitor
• Differential Remote Voltage Sensing
• Integrated Gate Driver
• Split LGATE Driver to Increase Light-Load Efficiency
(For ISL62881D)
• Adaptive Body Diode Conduction Time Reduction
• User-selectable Overshoot Reduction Function
• Small Footprint 28 Ld 4x4 or 32 Ld 5x5 TQFN
Package
Applications
• Notebook Core Voltage Regulator
• Notebook GPU Voltage Regulator
Related Literature
• See AN1552 for Evaluation Board Application Note
“ISL62881CCPUEVAL2Z User Guide”
• See AN1553 for Evaluation Board Application Note
“ISL62881CGPUEVAL2Z User Guide”
Load Line Regulation
0.91
0.90
0.89
0.88
0.87
0.86
0.85
0.84
0.83
0.82
0.81
0.80
0
VIN = 19V
VIN = 12V
VIN = 8V
2 4 6 8 10 12 14 16 18 20 22
IOUT (A)
March 8, 2010
FN7596.0
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
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL62881C pdf, ピン配列
ISL62881C, ISL62881D
Pin Function Description (Continued)
ISL62881C ISL62881D
46
57
68
79
8 10
SYMBOL
VW
COMP
FB
VSEN
RTN
DESCRIPTION
A resistor from this pin to COMP programs the switching frequency (8kΩ gives
approximately 300kHz).
This pin is the output of the error amplifier. Also, a resistor across this pin and GND
adjusts the overcurrent threshold.
This pin is the inverting input of the error amplifier.
Remote core voltage sense input. Connect to microprocessor die.
Remote voltage sensing return. Connect to ground at microprocessor die.
9, 10
11
12
13
14
15
16
17
18
-
-
19
11, 12
13
14
15
16
17
18
19
-
20
21
22
ISUM- and Droop current sense input.
ISUM+
VDD
5V bias power.
VIN Power stage supply voltage, used for feed-forward.
IMON
An analog output. IMON outputs a current proportional to the regulator output
current.
BOOT
Connect an MLCC capacitor across the BOOT and the PHASE pin. The boot capacitor
is charged through an internal boot diode connected from the VCCP pin to the BOOT
pin, each time the PHASE pin drops below VCCP minus the voltage dropped across the
internal boot diode.
UGATE
Output of the high-side MOSFET gate driver. Connect the UGATE pin to the gate of the
high-side MOSFET.
PHASE
Current return path for the high-side MOSFET gate driver. Connect the PHASE pin to
the node consisting of the high-side MOSFET source, the low-side MOSFET drain, and
the output inductor.
VSSP
Current return path for the low-side MOSFET gate driver. Connect the VSSP pin to the
source of the low-side MOSFET through a low impedance path, preferably in parallel
with the traces connecting the LGATE pins to the gates of the low-side MOSFET.
LGATE
Output of the low-side MOSFET gate driver. Connect the LGATE1 pin to the gate of the
Phase-1 low-side MOSFET.
LGATEa Output of the low-side MOSFET gate driver that is always active. Connect the LGATEa
pin to the gate of the low-side MOSFET that is active all the time.
LGATEb
Another output of the low-side MOSFET gate driver. This gate driver will be pulled low
when the DPRSLPVR pin logic is high. Connect the LGATEb pin to the gate of the
low-side MOSFET that is idle in deeper sleep mode.
VCCP
Input voltage bias for the internal gate drivers. Connect +5V to the VCCP pin.
Decouple with at least 1µF of an MLCC capacitor to the VSSP pin.
20, 21, 22,
23, 24, 25,
26
23, 24, 25,
26, 27, 28
29
VID0,
VID1,
VID2,
VID3,
VID4,
VID5, VID6
VID input with VID0 = LSB and VID6 = MSB.
27 30 VR_ON Voltage regulator enable input. A high level logic signal on this pin enables the
regulator.
28 31 DPRSLPVR Deeper sleep enable signal. A high level logic signal on this pin indicates that the
microprocessor is in deeper sleep mode.
pad BOTTOM The bottom pad is electrically connected to the GND pin inside the IC. It should also
be used as the thermal pad for heat removal.
3 FN7596.0
March 8, 2010


3Pages


ISL62881C 電子部品, 半導体
ISL62881C, ISL62881D
Absolute Maximum Ratings
Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . .-0.3V 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#, CLK_EN#
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +7V
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . 2kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . 200V
Latch Up (Tested per JESD-78B; Class 2, Level A) . . . 100mA
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)θJA (°C/W) θJC (°C/W)
28 Ld TQFN Package. . . . . . . . . . .
42
5
32 Ld TQFN Package. . . . . . . . . . .
34
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
Recommended Operating Conditions
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . +5V ±5%
Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . +4.5V to 25V
Ambient Temperature
ISL62881CHRTZ, ISL62881DHRTZ . . . . . -10°C to +100°C
ISL62881CIRTZ . . . . . . . . . . . . . . . . . . -40°C to +100°C
Junction Temperature
ISL62881CHRTZ, ISL62881DHRTZ . . . . . -10°C to +125°C
ISL62881CIRTZ . . . . . . . . . . . . . . . . . . -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
Operating Conditions: VDD = 5V, TA = -40°C to +100°C, fSW = 300kHz, unless otherwise
noted. Boldface limits apply over the operating temperature range, -40°C to
+100°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
INPUT POWER SUPPLY
+5V Supply Current
IVDD
VR_ON = 1V
VR_ON = 0V
3.2 4.0
1
mA
µA
Battery Supply Current
VIN Input Resistance
Power-On-Reset Threshold
SYSTEM AND REFERENCES
IVIN
RVIN
PORr
PORf
VR_ON = 0V
VR_ON = 1V
VDD rising
VDD falling
4.00
900
4.35
4.15
1
4.5
µA
kΩ
V
V
System Accuracy
HRTZ
No load; closed loop, active mode range
%Error (VCC_CORE) VID = 0.75V to 1.50V,
VID = 0.5V to 0.7375V
-0.5
-8
+0.5
+8
%
mV
VID = 0.3V to 0.4875V
-15
+15
mV
IRTZ
No load; closed loop, active mode range
%Error (VCC_CORE) VID = 0.75V to 1.50V
VID = 0.5V to 0.7375V
-0.8
-10
+0.8
+10
%
mV
VID = 0.3V to 0.4875V
-18
+18
mV
VBOOT
HRTZ
IRTZ
1.0945 1.100 1.1055
1.0912 1.100 1.1088
V
V
Maximum Output Voltage
Minimum Output Voltage
(Note 6)
VCC_CORE(max)
VCC_CORE(min)
VID = [0000000]
VID = [1111111]
1.500
0
V
V
RBIAS Voltage
RBIAS = 147kΩ
1.45 1.47 1.49
V
6 FN7596.0
March 8, 2010

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
ISL62881

Single-Phase PWM Regulator

Intersil Corporation
Intersil Corporation
ISL62881B

Single-Phase PWM Regulator

Intersil Corporation
Intersil Corporation
ISL62881C

Single-Phase PWM Regulator

Intersil Corporation
Intersil Corporation
ISL62881D

Single-Phase PWM Regulator

Intersil Corporation
Intersil Corporation


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