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PDF NCP5395T Data sheet ( Hoja de datos )

Número de pieza NCP5395T
Descripción 2/3/4-Phase Controller with On Board Gate Drivers
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No Preview Available ! NCP5395T Hoja de datos, Descripción, Manual

NCP5395T
2/3/4-Phase Controller with
On Board Gate Drivers for
CPU Applications
The NCP5395T provides up to a fourphase buck solution which
combines differential voltage sensing, differential phase current
sensing, and adaptive voltage positioning to provide accurately
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regulated power for both Intel and AMD processors. It also receives
power saving command (PSI) from CPU, and operates in a single
phase emulation diode mode to obtain a high efficiency at light load.
QFN48, 7x7
CASE 485AJ
Dualedge pulsewidth modulation (PWM) combined with precise
inductor current sensing provides the fastest initial response to
dynamic load events both in power saving and normal modes.
Dualedge multiphase modulation reduces the total bulk and ceramic
output capacitance required therefore reducing the system cost to meet
1 48
MARKING DIAGRAM
48
1
transient regulation specifications.
The on board gate drivers includes adaptive non overlap and power
NCP5395T
AWLYYWWG
saving operation. A high performance operational error amplifier is
provided to simplify compensation of the system. Patented Dynamic
Reference Injection further simplifies loop compensation by
eliminating the need to compromise between closedloop transient
response and Dynamic VID performance.
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
Features
Meets Intel’s VR11.1 and AMD’s 6 Bit Code Specifications
Enhanced Power Saving Function
Internal Soft Start
Dualedge PWM for Fastest Initial Response to Transient Loading
High Performance Operational Error Amplifier
Dynamic Reference Injection (Patent #US07057381)
DAC Range from 0.5 V to 1.6 V
DAC Feed Forward Function (Patient Pending)
±0.5% DAC Voltage Accuracy from 1.0 V to 1.6 V
48
1
VBPIGDS30I
VVIIDD21
VVVIIIDDD543
VID7R/VAOIMSDCD6
ILIM
AGND
Downbonded to
Exposed Flag
BG1
G4
EVNRRDY
CS1N
CS1P
CCCCCCSSSSSS443322PNPNPN
True Differential Remote Voltage Sensing Amplifier
PhasetoPhase Current Balancing
“Lossless” Differential Inductor Current Sensing
Accurate Current Monitoring (IMON)
ORDERING INFORMATION
Differential Current Sense Amplifiers for Each Phase
Device
Package
Shipping
Adaptive Voltage Positioning (AVP)
Oscillator Frequency Range of 125 kHz 1 MHz
NCP5395TMNR2G QFN48 2500/Tape & Reel
(PbFree)
Latched Over Voltage Protection (OVP)
Guaranteed Startup into PreCharged Loads
Threshold Sensitive Enable Pin for VTT Sensing
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Power Good Output with Internal Delays
Thermal Shutdown Protection
Output Disable Control Turn Off of Both Phase Pair
This is a PbFree Device
MOSFETs
Thermally Compensated Current Monitoring
AdaptiveNonOverlap Gate Drive Circuit
Applications
Desktop Processors
© Semiconductor Components Industries, LLC, 2013
July, 2013 Rev. 1
1
Publication Order Number:
NCP5395T/D

1 page




NCP5395T pdf
NCP5395T
VTT
PSI#_CPU
VVVVVIIIIIDDDDD02431
VVVIIIDDD765
IMON
12V_FILTER
2 1 12V_FILTER
D
G
S
DD
GG
SS
PWM3_SENSE_N
PWM3_SENSE_P
VCCP
RFB CFB
13
14
IMON
VSP
VBST3 48
TG3 47
15 VSN
SWN3 46
RF
RFB
16 DIFFOUT
17 COMP
NCP5395T
DRVON 45 DRVON
BST2 44
CF CH
18 VFB
RDRP19 VDRP
48L 7x7 QFN
FLAG = GND
TG2 43
SWN2 42
CDFB
RDFB
RT
RISO RISO
12V_FILTER
20 VDFB
21 CSSUM
22 DAC
23 12VMON
24 VCC
BG2
41
12V_FILTER
VCCP 40
SWN1 39
TG1 38
BST1 37
21
12V_FILTER
D
G
S
DD
G G PWM2_SENSE_N
S S PWM2_SENSE_P
21
12V_FILTER
D
G
S
VCCP
+5.0V
VTT
PWM4_GATE
PWM1_SENSE_P
D
G
S
D PWM1_SENSE_N
G
S
PWM1_SENSE_P
ENABLE
PWM1_SENSE_N
12V_FILTER
PWM2_SENSE_P
2
1
PWM2_SENSE_N
PWM3_SENSE_P
PWM3_SENSE_N
DRVON
PWM4_GATE
PWM4_SENSE_P
VCC BST
OD
IN
4
3
2
1
8
7
5
6
DRH
SW
DRL
PGND
NCP5359
PWM4_SENSE_N
12V_FILTER
D
G
S
DD
GG
SS
PWM4_SENSE_N
PWM4_SENSE_P
Figure 4. Typical 4 Phase Application
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NCP5395T arduino
NCP5395T
ELECTRICAL CHARACTERISTICS
0°C < TA < 70°C; 0°C < TJ < 125°C; 4.75 < VCC < 5.25 V; All DAC Codes; CVCC = 0.1 mF unless otherwise noted.
Parameter
Test Conditions
Min Typ
VR_RDY (Power Good) OUTPUT
VR_RDY Rising Delay
VCore Increasing
250
VR_RDY Falling Delay
VCore Decreasing
5.0
PWM G4 OUTPUT
Output High Voltage
Mid Output Voltage
Sourcing 500 mA
3.0
1.4 1.5
Output Low Voltage
Delay + Rise Time (Note 3)
Delay + Fall Time (Note 3)
TriState Output Leakage (Note 3)
Sinking 500 mA
CL (PCB) = 50 pF,
DVo = VCC to GND
CL (PCB) = 50 pF,
DVo = GND to VCC
Gx = 2.5 V, x = 14
−−
10
10
−−
Output Impedance
HI or LO State
Max Resistance to VCC (HI) or
GND (LO)
75
Minimum VCC for Valid PWM Output Level
PWM 4 2/3/4 Phase Detection
−−
2 Phase Mode
4 Phase Mode
Note Gate 4 tied to VCC
Note Gate Driver will pull to 1.5 V
3.2
1.2
3 Phase Mode
Note Gate 4 tied to GND
0
DIGITAL SOFTSTART
SoftStart Ramp Time
DAC = 0 to DAC = 1.1 V
1.0
VR11 Vboot time
VID7/VR11/AMD/LEGACY INPUT
Not used in Legacy Startup
400 500
VID Threshold
450 600
VR11 Input Bias Current
100
Delay Before Latching VID Change (VID Deskewing)
(Note 3)
Measured from the Edge of the 1st
VID Change
200
AMD Upper Threshold
AMD Lower Threshold
Note: When above this threshold
the controller will ramp directly to
VID without stopping at Vboot
3.33
Max Unit
ms
ms
V
1.6 V
0.7 V
ns
ns
1.5 mA
150 W
2.0 V
VCC
V
2.8 V
0.8 V
1.3 ms
600 ms
770 mV
100 nA
300 ns
4.8 V
V
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