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PDF NCP5392 Data sheet ( Hoja de datos )
| Número de pieza | NCP5392 | |
| Descripción | 2/3/4-Phase Controller | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP5392www.DataSheet4U.com
2/3/4-Phase Controller for
CPU Applications
The NCP5392 provides up to a four−phase buck solution which
combines differential voltage sensing, differential phase current
sensing, and adaptive voltage positioning to provide accurately
regulated power for both Intel and AMD processors. Dual−edge
pulse−width modulation (PWM) combined with inductor current
sensing reduces system cost by providing the fastest initial response
to dynamic load events. Dual−edge multiphase modulation reduces
the total bulk and ceramic output capacitance required to meet
transient regulation specifications.
A high performance operational error amplifier is provided to
simplify compensation of the system. Dynamic Reference Injection
further simplifies loop compensation by eliminating the need to
compromise between closed−loop transient response and Dynamic
VID performance.
Features
• Meets Intel’s VR11.1 Specifications
• Meets AMD 6 Bit Code Specifications
• Dual−edge PWM for Fastest Initial Response to Transient Loading
• High Performance Operational Error Amplifier
• Internal Soft Start
• Dynamic Reference Injection® (Patent #US07057381)
• DAC Range from 0.375 V to 1.6 V
• DAC Feed Forward (Patent Pending)
• ±0.5% DAC Voltage Accuracy from 1.0 V to 1.6 V
• True Differential Remote Voltage Sensing Amplifier
• Phase−to−Phase Current Balancing
• “Lossless” Differential Inductor Current Sensing
• Differential Current Sense Amplifiers for each Phase
• Adaptive Voltage Positioning (AVP)
• Oscillator Frequency Range of 100 kHz – 1 MHz
• Latched Over Voltage Protection (OVP)
• Guaranteed Startup into Pre−Charged Loads
• Threshold Sensitive Enable Pin for VTT Sensing
• Power Good Output with Internal Delays
• Thermally Compensated Current Monitoring
• This is a Pb−Free Device
Applications
• Desktop Processors
http://onsemi.com
MARKING
DIAGRAM
1 40
40 PIN QFN, 6x6
MN SUFFIX
CASE 488AR
1
NCP5392
AWLYYWWG
NCP5392 = Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
*Pin 41 is the thermal pad on the bottom of the device.
ORDERING INFORMATION
Device
Package
Shipping†
NCP5392MNR2G* QFN−40 2500/Tape & Reel
(Pb−Free)
*Temperature Range: 0°C to 85°C
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2008
August, 2008 − Rev. 3
1
Publication Order Number:
NCP5392/D
1 page  
www.DataSheet4U.com
VTT
12V_FILTER
+5V
NCP5392
12V_FILTER
D1
RFB
CFB1 RFB1
CF RF
CH
RDRP
RNOR
34 35
37
2 VID0
3 VID1
38
NTC
4 VID2
5 VID3
IMON 12
6 VID4
7 VID5
30
8 VID6
9 VID7
G1
22
CS1P
21
1 EN
CS1N
31
39 VR_RDY
40 VR_HOT
G2
24
CS2P
23
14 VSN
13 VSP
CS2N
NCP5392
G3 32
CS3P 26
CS3N 25
15 DIFFOUT
16 COMP
17 VFB
G4 33
CS4P 28
CS4N 27
18 VDRP
29
DRVON
19 VDFB
R6 20 CSSUM
CDFB
36 DAC
PSI
IMON
RISO1 RT2 RISO2
41
RDNP
11 10
RLIM1
RLIM2
C1
RNTC1
RT1
BST
VCC DRH
NCP5359
OD SW
DRL
IN
PGND
12V_FILTER
BST
VCC DRH
NCP5359
OD SW
DRL
IN
PGND
12V_FILTER
BST
VCC
DRH
NCP5359
OD SW
DRL
IN
PGND
12V_FILTER
C4
C3
Q1
L1
Q2 R2 RS1
C2 CS1
12V_FILTER
12V_FILTER
+
VCCP
VSSN
Figure 4. Application Schematic for Three Phases
http://onsemi.com
5
5 Page 
NCP5392
www.DataSEhLeEeCt4TUR.cIoCmAL CHARACTERISTICS
(Unless otherwise stated: 0°C < TA < 85°C; 4.75 V < VCC < 5.25 V; All DAC Codes; CVCC = 0.1 mF)
Parameter
Test Conditions
Min
IMON
Output source current (Note 3)
Output sink current (Note 3)
Maximum Clamp Voltage
OSCILLATOR
Vout = 1 V
Vout = 0.3 V
VDRP Voltage = 2 V,
RLOAD = 100 k
300
300
−
Switching Frequency Range (Note 3)
Switching Frequency Accuracy 2− or
4−Phase
Switching Frequency Accuracy
3−Phase
ROSC Output Voltage
MODULATORS (PWM Comparators)
ROSC = 49.9 kW
ROSC = 24.9 kW
ROSC = 10 kW
ROSC = 49.9 kW
ROSC = 24.9 kW
ROSC = 10 kW
100
200
374
800
191
354
755
1.95
Minimum Pulse Width
Propagation Delay
0% Duty Cycle
FSW = 800 KHz
±20 mV of Overdrive
COMP Voltage when the PWM
Outputs Remain LO
−
−
−
100% Duty Cycle
COMP Voltage when the PWM
Outputs Remain HI
−
PWM Ramp Duty Cycle Matching
PWM Phase Angle Error (Note 3)
Between Any Two Phases
Between Adjacent Phases
−
15
VR_RDY (POWER GOOD) OUTPUT
VR_RDY Output Saturation Voltage
VR_RDY Rise Time (Note 3)
IPGD = 10 mA,
External Pullup of 1 kW to 1.25
V, CTOT = 45 pF, DVo = 10% to
90%
−
−
VR_RDY Output Voltage at Powerup
(Note 3)
VR_RDY High – Output Leakage
Current (Note 3)
VR_RDY Pulled up to 5 V via
2 kW, tR(VCC) ≤ 3 x tR(5V)
100 ms ≤ tR(VCC) ≤ 20 ms
VR_RDY = 5.5 V via 1 K
−
−
VR_RDY Upper Threshold Voltage
VCore Increasing, DAC = 1.3 V
−
Typ
−
−
−
−
−
−
−
−
−
−
2.01
30
10
1.3
2.3
90
−
−
100
−
−
310
VR_RDY Lower Threshold Voltage
VCore Decreasing
DAC = 1.3 V
VR_RDY Rising Delay
VR_RDY Falling Delay
VCore Increasing
VCore Decreasing
PWM OUTPUTS
Output High Voltage
Mid Output Voltage
Sourcing 500 mA
Output Low Voltage
Sinking 500 mA
Delay + Fall Time (Note 3)
CL (PCB) = 50 pF,
DVo = VCC to GND
Delay + Rise Time (Note 3)
CL (PCB) = 50 pF,
DVo = GND to VCC
3. Guaranteed by design, not tested in production.
410 370
− 500
−5
3.0 −
1.4 1.5
−−
− 10
− 10
http://onsemi.com
11
Max Unit
− mA
− mA
1.15 V
1000
224
414
978
234
434
1000
2.065
−
−
−
−
−
15
0.4
150
1.0
kHz
kHz
kHz
V
ns
ns
V
V
%
°
V
ns
V
0.2 mA
270 mV
Below
DAC
mV
Below
DAC
− ms
− ms
−V
1.6 V
0.7 V
15 ns
15 ns
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NCP5392.PDF ] | |
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