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Número de pieza | NCP5316 | |
Descripción | Four/Five/Six-Phase Buck CPU Controller | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
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NCP5316
Four/Five/Six−Phase
Buck CPU Controller
The NCP5316 provides full−featured and flexible control for the
latest high−performance CPUs. The IC can be programmed as a four−,
five− or six−phase buck controller, and the per−phase switching
frequency can be as high as 1.0 MHz. Combined with external gate
drivers and power components, the controller implements a compact,
highly integrated multi−phase buck converter.
Enhanced V2™ control inherently compensates for variations in
both line and load, and achieves current sharing between phases. This
control scheme provides fast transient response, reducing the need for
large banks of output capacitors and higher switching frequency.
The controller meets VR(M)10.x specifications with all the required
functions and protection features.
Features
• Switching Regulator Controller
♦ Programmable 4/5/6 Phase Operation
♦ Lossless Current Sensing
♦ Programmable Up to 1.0 MHz Switching Frequency Per Phase
♦ 0 to 100% Adjustment of Duty Cycle
♦ Programmable Adaptive Voltage Positioning Reduces Output
Capacitor Requirements
♦ Programmable Soft Start
• Current Sharing
♦ Differential Current Sense Pins for Each Phase
♦ Current Sharing Within 10% Between Phases
• Protection Features
♦ Programmable Pulse−by−Pulse Current Limit for Each Phase
♦ “111110” and “111111” DAC Code Fault
♦ Latching Off Overvoltage Protection
♦ Programmable Latch Overcurrent Protection
♦ Undervoltage Lockout
♦ Reference Undervoltage Lockout
♦ MOSFET Driver Control through Driver−On Signal
• System Power Management
♦ 6−Bit DAC with 0.5% Tolerance
♦ Programmable Lower Power Good Threshold
♦ Power Good Output
♦ External Enable Control
♦ 3.3 V Reference Voltage Output
http://onsemi.com
48−PIN QFN, 7 y 7
MN SUFFIX
CASE 485K
(Bottom View)
MARKING
DIAGRAMS
48
1
NCP5316
AWLYYWW
LQFP−48
FT SUFFIX
CASE 932
NCP5316
AWLYYWW
48
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
Package
Shipping†
NCP5316MNR2 48−Pin QFN* 2000 Tape & Reel
NCP5316FTR2 LQFP−48* 2000 Tape & Reel
*7 × 7 mm
†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.
© Semiconductor Components Industries, LLC, 2004
February, 2004 − Rev. 9
1
Publication Order Number
NCP5316/D
1 page NCP5316
MAXIMUM RATINGS (continued)
Pin Number
Pin Symbol
41 CS3N
42 IPLIM
43 VDRP
44 ILIM
45 IOF
46 IO
47 VREF
48 VCCL
VMAX
18 V
7.0 V
7.0 V
7.0 V
7.0 V
7.0 V
7.0 V
18 V
VMIN
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
ISOURCE
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
5.0 mA
5.0 mA
−
ISINK
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
50 mA
VOLTAGE IDENTIFICATION (VID)
VID Pins (0 = low, 1 = high)
VID4
0
VID3
1
VID2
0
VID1
1
VID0
0
01001
01001
01000
01000
00111
00111
00110
00110
00101
00101
00100
00100
00011
00011
00010
00010
00001
00001
00000
00000
11111
11111
11110
11110
11101
11101
11100
*VID Code is for reference only.
†VOUT No Load is the input to the error amplifier.
VID5
0
VID Code*(V)
0.8375
1 0.8500
0 0.8625
1 0.8750
0 0.8875
1 0.9000
0 0.9125
1 0.9250
0 0.9375
1 0.9500
0 0.9625
1 0.9750
0 0.9875
1 1.0000
0 1.0125
1 1.0250
0 1.0375
1 1.0500
0 1.0625
1 1.0750
0 1.0875
1
0
1 1.1000
0 1.1125
1 1.1250
0 1.1375
1 1.1500
−0.5%
VOUT No Load† (V)
0.8134
0.8259
0.8383
0.8507
0.8632
0.8756
0.8880
0.9005
0.9129
0.9254
0.9378
0.9502
0.9627
0.9751
0.9875
1.0000
1.0124
1.0249
1.0373
1.0497
1.0622
1.0746
1.0870
1.0995
1.1119
1.1244
OFF
OFF
0.8175
0.8300
0.8425
0.8550
0.8675
0.8800
0.8925
0.9050
0.9175
0.9300
0.9425
0.9550
0.9675
0.9800
0.9925
1.0050
1.0175
1.0300
1.0425
1.0550
1.0675
1.0800
1.0925
1.1050
1.1175
1.1300
+0.5%
0.8216
0.8342
0.8467
0.8593
0.8718
0.8844
0.8970
0.9095
0.9221
0.9347
0.9472
0.9598
0.9723
0.9849
0.9975
1.0100
1.0226
1.0352
1.0477
1.0603
1.0728
1.0854
1.0980
1.1105
1.1231
1.1357
http://onsemi.com
5
5 Page ENABLE
VCCL
VREF
VID5
VID0
VID1
VID2
VID3
VID4
SGND
PWRLS
CS1P
CS1N
CS2P
CS2N
CS3P
CS3N
CS4P
CS4N
CS5P
CS5N
CS6P
CS6N
PWRGD SS
VREF
10 k
3.3 V
Reference
UVLO Comparator
−
−+ +
9.0 V
8.0 V
VREF Comparator
−
+
+ 3.0 V
− 2.9 V
DAC VID = 11111x
−
−+ +
0.8 V
0.4 V
Enable Comparator
Fault Latch
SQ
R
200 mV
−+
OVP
Comparator
−
+
SQ
VCCL
Charge
Current
Discharge
Current
DAC Output
PWRGD
R
100 mV Comparator
CO1
+ ×3
CO1
− CO1F
+ × 9.5 CO1F
−
CO2
+ ×3
CO2
− CO2F
+ × 9.5 CO2F
−
CO3
+ ×3
CO3
− CO3F
+ × 9.5 CO3F
−
CO4
+ ×3
CO4
− CO4F
+ × 9.5 CO4F
−
CO5
+ ×3
CO5
− CO5F
+ × 9.5 CO5F
−
CO6
+ ×3
CO6
− CO6F
+ × 9.5 CO6F
−
20 mV
+−
−+
0.5
−
+
PWRGD
+ Comparator
−
Delay
0.6 V
−+
Module OC
Comparator
+
+
IO
Buffer
−+
AVP
Buffer
−+
Error
Amplifier
+
−
CS3P
Phase 3
Disable Comparator
+
−+ −
VCC − 0.5 V
Phase 6
CS6P
Disable Comparator
+
−+ −
VCC − 0.5 V
Current Source
Generator
+
−
× 1.4
× 0.85
+
−
1.0 V
+
−
+RAMP1
CO1
CO1F
PWM Comparator
− PWM Latch
+
Phase1
SQ
Pulse Current
Comparator
+
−R
70k
Phase1
Ramp1
Phase2
Ramp2
Phase3
Ramp3
Phase4
Ramp4
Phase5
Ramp5
Phase6
Ramp6
PWM Comparator
+RAMP2
−
+
CO2
CO2F
+
−
PWM Comparator
+RAMP3
−
+
CO3
CO3F
+
−
PWM Comparator
+RAMP4
−
+
CO4
CO4F
+
−
PWM Comparator
+RAMP5
−
+
CO5
CO5F
+
−
PWM Comparator
+RAMP6
−
+
CO6
CO6F
+
−
PWM Latch
Phase2
SQ
VCC
R
PWM Latch
Phase3
SQ
VCC
R
PWM Latch
Phase4
SQ
VCC
R
PWM Latch
Phase5
SQ
VCC
R
PWM Latch
Phase6
SQ
VCC
R
DRVON
VCC
GATE1
GATE2
GATE3
GATE4
GATE5
GATE6
GND
IO ILIM IOF VDRP VFFB VFB
ROSC
LGND
COMP IPLIM
11 Page |
Páginas | Total 32 Páginas | |
PDF Descargar | [ Datasheet NCP5316.PDF ] |
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