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PDF NCP81140 Data sheet ( Hoja de datos )

Número de pieza NCP81140
Descripción Multiple-Phase Controller
Fabricantes ON Semiconductor 
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No Preview Available ! NCP81140 Hoja de datos, Descripción, Manual

NCP81140
Multiple-Phase Controller
with SVID Interface for
Desktop and Notebook CPU
Applications
The NCP81140 MultiPhase buck solution is optimized for
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Intel® VR12.5 compatible CPUs with user configurations of 4/3/2/1
phases. The controller combines true differential voltage sensing,
differential inductor DCR current sensing, input voltage
MARKING
DIAGRAM
feedforward, and adaptive voltage positioning to provide accurately
regulated power for both Desktop and Notebook applications. The
control system is based on DualEdge pulsewidth modulation
(PWM) combined with DCR current sensing providing the fastest
1
QFN32
CASE 510AT
NCP
81140
ALYWG
G
initial response to dynamic load events at reduced system cost. It has
the capability to shed to single phase during light load operation and
can auto frequency scale in light load conditions while maintaining
excellent transient performance.
High performance operational error amplifiers are provided to
simplify compensation of the system. Patented Dynamic Reference
Injection further simplifies loop compensation by eliminating the need
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
to compromise between closedloop transient response and Dynamic
VID performance. Patented Total Current Summing provides highly
accurate digital current monitoring.
Features
ORDERING INFORMATION
See detailed ordering and shipping information page 24 of this
data sheet.
Meets Intel® VR12.5 Specifications
Current Mode Dual Edge Modulation for Fastest Initial Response to
Transient Loading
High Performance Operational Error Amplifier
Digital Soft Start Ramp
Dynamic Reference Injection
Accurate Total Summing Current Amplifier
Dual High Impedance Differential Voltage and Total
Power Saving Phase Shedding
Current Sense Amplifiers
PhasetoPhase Dynamic Current Balancing
“Lossless” DCR Current Sensing for Current Balancing
Vin Feed Forward Ramp Slope
Over Voltage Protection (OVP) & Under Voltage
Protection (UVP)
True Differential Current Balancing Sense Amplifiers
Over Current Protection (OCP)
for Each Phase
Adaptive Voltage Positioning (AVP)
Switching Frequency Range of 280 kHz – 600 kHz
Startup into PreCharged Loads While Avoiding False
OVP
VRRDY Output with Internal Delays
These are PbFree Devices
Applications
Desktop and Notebook Processors
© Semiconductor Components Industries, LLC, 2014
January, 2014 Rev. 0
1
Publication Order Number:
NCP81140/D

1 page




NCP81140 pdf
NCP81140
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL INFORMATION
Pin Symbol
COMP
VMAX
VCC + 0.3 V
CSCOMP
VCC + 0.3 V
VSN
GND + 300 mV
DIFFOUT
VCC + 0.3 V
VR_RDY
VCC + 0.3 V
VCC
6.5 V
IOUT
2.0 V
VRMP
+25 V
All Other Pins
VCC + 0.3 V
*All signals referenced to GND unless noted otherwise.
THERMAL INFORMATION
Description
Thermal Characteristic
QFN Package (Note 1)
Operating Junction Temperature Range (Note 2)
Operating Ambient Temperature Range
Maximum Storage Temperature Range
Max Power Dissipation
Moisture Sensitivity Level
QFN Package
*The maximum package power dissipation must be observed.
1. JESD 515 (1S2P DirectAttach Method) with 0 LFM
2. JESD 517 (1S2P DirectAttach Method) with 0 LFM
Symbol
RqJA
TJ
TSTG
Pd
MSL
VMIN
0.3 V
0.3 V
GND – 300 mV
0.3 V
0.3 V
0.3 V
0.3 V
0.3 V
0.3 V
Typ
68
10 to 125
40 to 125
40 to +150
110 to 131
1
Unit
_C/W
_C
_C
_C
mW
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5

5 Page





NCP81140 arduino
Table 1. VR12.5 VID CODES
VID7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID6
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID5
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NCP81140
VID4
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID3
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
VID2
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
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11
VID1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Voltage
(V)
1.02
1.03
1.04
1.05
1.06
1.07
1.08
1.09
1.1
1.11
1.12
1.13
1.14
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
1.25
1.26
1.27
1.28
1.29
1.3
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
1.39
1.4
1.41
1.42
HEX
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D

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