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NCP5381 PDF даташит

Спецификация NCP5381 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «2/3/4 Phase Buck Controller».

Детали детали

Номер произв NCP5381
Описание 2/3/4 Phase Buck Controller
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCP5381 Даташит, Описание, Даташиты
NCP5381
2/3/4 Phase Buck Controller
for VR10 and VR11 Pentium
IV Processor Applications
The NCP5381 is a two- , three- , or four- phase buck controller
which combines differential voltage and current sensing, and
adaptive voltage positioning to power Intel’s most demanding
PentiumIV Processors and low voltage, high current power
supplies. Dual- edge pulse- width modulation (PWM) combined with
inductor current sensing reduces system cost by providing the fastest
initial response to transient loads thereby requiring less bulk and
ceramic output capacitors to satisfy transient load- line requirements.
A high performance operational error amplifier is provided, which
allows easy compensation of the system. The proprietary method of
Dynamic Reference Injection makes the error amplifier
compensation virtually independent of the system response to VID
changes, eliminating the need for tradeoffs between load transients
and Dynamic VID performance.
Features
Meets Intel’s VR 10.0, 10.1, 10.2, and 11.0 Specifications
Dual- Edge PWM for Fastest Initial Response to Transient Loading
High Performance Operational Error Amplifier
Supports both VR11 and Legacy VR10 Soft- Start Modes
Dynamic Reference Injection
8- Bit DAC per Intel’s VR11 Specifications
DAC Range from 0.5 V to 1.6 V
0.5% System Voltage Accuracy
Remote Temperature Sensing per VR11
2, 3, or 4- Phase Operation
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)
Fixed No- Load Voltage Positioning at –19 mV
Frequency Range: 100 kHz–1.0 MHz
Latched Overvoltage Protection (OVP)
Threshold Sensitive Enable Pin for VTT Sensing
Power Good Output with Internal Delays
Programmable Soft- Start Time
Operates from 12 V
This is a Pb- Free Device*
Applications
Pentium IV Processors
VRM Modules
Graphics Cards
Low Voltage, High Current Power Supplies
http://onsemi.com
MARKING
DIAGRAM
1 40
40 PIN QFN, 7x7
MN SUFFIX
CASE 488AG
1
NCP5381
AWLYYWWG
NCP5381 = 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
NCP5381MNR2G QFN--40 2500 / Tape & Reel
(Pb--Free)
†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.
*For additional information on our Pb--Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2010
November, 2010 - Rev. 3
1
Publication Order Number:
NCP5381/D









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NCP5381 Даташит, Описание, Даташиты
NCP5381
PIN CONNECTIONS
1 EN
2 VID0
3 VID1
4 VID2
5 VID3
6 VID4
7
VID5
8
VID6
9
VID7
10 VR10/11
NCP5381
G1
DRVON
CS4
CS4N
CS3
CS3N
CS2
CS2N
CS1
CS1N
30
29
28
27
26
25
24
23
22
21
(Top View)
http://onsemi.com
2









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NCP5381 Даташит, Описание, Даташиты
NCP5381
VR10/11
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
SS
VR10/11
DAC
DAC
VS--
VS+
DIFFOUT
-
+
Diff Amp
VFB
COMP
VDRP
CS1
CS1N
CS2
CS2N
CS3
CS3N
CS4
CS4N
ROSC
1.3 V
+
-
Error Amp
Droop
Amplifier
+ --
1.3 V
+
-
Gain = 6
+
-
Gain = 6
+
-
Gain = 6
+
-
Gain = 6
Oscillator
ILIM
EN
VCC
AGND
9.0 V
NCP5381
+
-
+
-
Fault
+
-
UVLO
+- ENB
+
-
ENB
+
-
ENB
+
- ENB
4OFF
OVER
Fault
DIFFOUT
1.3 V
+
-
Current Limit
Fault Logic
3 Phase
Detect
and
Monitor
Circuits
Figure 1. Simplified Block Diagram
http://onsemi.com
3
VREF
NTC
VR_FAN
NTC
VR_HOT
DGND
G1
G2
G3
G4
DRVON
VR_RDY










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