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NCP81245 PDF даташит

Спецификация NCP81245 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «Three-Rail Output Controller».

Детали детали

Номер произв NCP81245
Описание Three-Rail Output Controller
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCP81245 Даташит, Описание, Даташиты
NCP81245
Three-Rail Output
Controller with Single Intel
Proprietary Interface for
Desktop and Notebook CPU
Applications
www.onsemi.com
The NCP81245 (3+3+1 phase) three−output buck solution is
optimized for Intel’s IMVP8 CPUs.
The two multi−phase rail control systems are based on Dual−Edge
pulse−width modulation (PWM) combined with DCR current sensing
providing an ultra fast initial response to dynamic load events and
reduced system cost.
The single−phase rail makes use of ON Semiconductor’s patented
high performance RPM operation. RPM control maximizes transient
response while allowing for smooth transitions between
discontinuous−frequency−scaling operation and continuous−mode
full−power operation. The NCP81245 has an ultra−low offset current
monitor amplifier with programmable offset compensation for
high−accuracy current monitoring.
Three−Phase Rails Feature
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 Current Sense
Amplifiers
Phase−to−Phase Dynamic Current Balancing
True Differential Current Balancing Sense Amplifiers for Each Phase
Adaptive Voltage Positioning (AVP)
Switching Frequency Range of 300 kHz − 750 kHz
Vin range 4.5 V to 20 V
Startup into Pre−Charged Loads While Avoiding False OVP
UltraSonic Operation
These are Pb−Free Devices
MARKING
DIAGRAM
1 52
QFN52
MN SUFFIX
CASE 485BE
NCP81245
FAWLYYWW
G
F = Wafer Fab
A = Assembly Site
WL = Lot ID
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
Device
Package Shipping
NCP81245MNTXG
QFN52 2500 / Tape
(Pb−Free)
& Reel
†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.
Single−Phase Rail Features
Enhanced RPM Control System
Ultra Low Offset IOUT Monitor
Dynamic VID Feed−Forward
Programmable Droop Gain
Zero Droop Capable
Thermal Monitor
UltraSonic Operation
Adjustable Vboot
Digitally Controlled Operating Frequency
Applications
Desktop & Notebook Processors
Gaming
© Semiconductor Components Industries, LLC, 2016
July, 2016 − Rev. 5
1
Publication Order Number:
NCP81245/D









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NCP81245 Даташит, Описание, Даташиты
NCP81245
SKT_SNS+
SKT_SNS−
VSP
VSN
DIFFOUT
FB
COMP
IOUT
TSENSE
VCC
GND
PWM1
DRON
CSP1
PWM2
+5V
Vpu
Vpu
batt chrgr
VRHOT
Vpu
SDIO
ALERT
SCLK
PSYS
CSP2
PWM3
CSP3
CSREF
CSSUM
ILIM
CSCOMP
TSENSE
NCP81245
PWM1
DRON
SKT_SNS+
SKT_SNS−
IOUT
VSP
VSN
DIFFOUT
CSP1
PWM2
FB
COMP
EN
VRRDY
VIN
SKT_SNS+
SKT_SNS−
VRMP
VSP
VSN
COMP
IOUT
ILIM
CSP2
PWM3
CSP3
CSREF
CSSUM
ILIM
CSCOMP
PWM
CSP
CSN
NTC
NTC
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
VDRV
LG HG
VIN
BST VIN
PWM
ON DrMOS
EN SW
VCC
PGND
GND SMOD ZCD
Figure 1.
www.onsemi.com
2
Vcc_Rail1
Vcc_Rail2
Vcc_Rail3
NTC









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NCP81245 Даташит, Описание, Даташиты
NCP81245
VSP_3PH_A 1
VSN_3PH_A 2
IMON_3PH_A 3
DIFFOUT_3PH_A 4
FB_3PH_A 5
COMP_3PH_A 6
ILIM_3PH_A 7
CSCOMP_3PH_A 8
CSSUM_3PH_A 9
CSREF_3PH_A 10
CSP1_3PH_A 11
CSP2_3PH_A 12
CSP3_3PH_A 13
NCP81245
TAB: GROUND
39 VRHOT#
38 VSP_3PH_B
37 VSN_3PH_B
36 IMON_3PH_B
35 DIFFOUT_3PH_B
34 FB_3PH_B
33 COMP_3PH_B
32 ILIM_3PH_B
31 CSCOMP_3PH_B
30 CSSUM_3PH_B
29 CSREF_3PH_B
28 CSP1_3PH_B
27 CSP2_3PH_B
Figure 2. Pinout
www.onsemi.com
3










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