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ISL6377 の電気的特性と機能

ISL6377のメーカーはIntersilです、この部品の機能は「Multiphase PWM Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL6377
部品説明 Multiphase PWM Regulator
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL6377 Datasheet, ISL6377 PDF,ピン配置, 機能
DATASHEET
Multiphase PWM Regulator for AMD Fusion™ Desktop
CPUs Using SVI 2.0
ISL6377
The ISL6377 is fully compliant with AMD Fusion™ SVI 2.0 and
provides a complete solution for microprocessor and graphics
processor core power. The ISL6377 controller supports two
Voltage Regulators (VRs) with three integrated gate drivers and
three optional external drivers for maximum flexibility. The Core
VR can be configured for 4-, 3-, 2-, or 1-phase operation while the
Northbridge VR supports 2- or 1-phase configurations. The two
VRs share a serial control bus to communicate with the AMD CPU
and achieve lower cost and smaller board area compared with
two-chip solutions.
The PWM modulator is based on Intersil’s Robust Ripple
Regulator R3™ technology. Compared to traditional modulators,
the R3 modulator can automatically change switching frequency
for faster transient settling time during load transients and
improved light-load efficiency.
The ISL6377 has several other key features. Both outputs
support DCR current sensing with single NTC thermistor for
DCR temperature compensation or accurate resistor current
sensing. Both outputs utilize remote voltage sense, adjustable
switching frequency, OC protection and power-good.
Applications
• AMD fusion CPU/GPU core power
• Desktop computers
Features
• Supports AMD SVI 2.0 serial data bus interface
- Serial VID clock frequency range 100kHz to 25MHz
• Dual output controller with integrated drivers
- Two dedicated core drivers
- One programmable driver for either core or Northbridge
• Precision voltage regulation
- 0.5% system accuracy over-temperature
- 0.5V to 1.55V in 6.25mV steps
- Enhanced load line accuracy
• Supports multiple current sensing methods
- Lossless inductor DCR current sensing
- Precision resistor current sensing
• Programmable 1-, 2-, 3- or 4-phase for the core output and
1- or 2-phase for the Northbridge output
• Adaptive body diode conduction time reduction
• Superior noise immunity and transient response
• Output current and voltage telemetry
• Differential remote voltage sensing
• High efficiency across entire load range
• Programmable slew rate
• Programmable VID offset and droop on both outputs
• Programmable switching frequency for both outputs
• Excellent dynamic current balance between phases
• Protection: OCP/WOC, OVP, PGOOD and thermal monitor
• Small footprint 48 Ld 6x6 QFN package
- Pb-free (RoHS compliant)
Core Performance
100
90
80
70
60
50
40
30
20
10
0
0
VIN = 12V
VIN = 8V
VOUT CORE = 1.1V
5 10 15 20 25 30 35 40 45 50 55
IOUT (A)
FIGURE 1. EFFICIENCY vs LOAD
1.12
1.10
1.08
1.06
1.04
1.02
VIN = 12V
VIN = 8V
1.00
0.98 VOUT CORE = 1.1V
0.96 0 5 10 15 20 25 30 35 40 45 50 55
IOUT (A)
FIGURE 2. VOUT vs LOAD
November 2, 2015
FN8336.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012, 2015. All Rights Reserved
Intersil (and design) and R3 Technology are trademarks owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL6377 pdf, ピン配列
ISL6377
Simplified Application Circuit for High Power CPU Core
NB_PH1
NB_PH2
VNB1
VNB2
NB_PH1
NB_PH2
Ri
Cn
NTC
ISEN1_NB
ISEN2_NB
ISUMN_NB
ISUMP_NB
COMP_NB
BOOTX
UGATEX
PHASEX
LGATEX
FCCM_NB
**
*OPTIONAL
VNB_SENSE
THERMAL INDICATOR
µP
FB_NB
VSEN_NB
PWM2_NB
IMON_NB
NTC_NB
VR_HOT_L
PWROK
SVT
SVD
SVC
VDDIO
IMON
NTC
COMP
ISL6377
PWM4
PWM_Y
**
*OPTIONAL
VCORE_SENSE
PH1
PH2
PH3
PH4
VO1
VO2
VO3
VO4
Ri
Cn
NTC
FB
VSEN
RTN
ISEN1
ISEN2
ISEN3
ISEN4
ISUMN
ISUMP
BOOT2
UGATE2
PHASE2
LGATE2
BOOT1
UGATE1
PHASE1
LGATE1
+12V
NB_PH1
+12V
VNB1
VNB
NB_PH2
VNB2
+12V
PH4
+12V
VO4
PH3
+12V
VO3
VCORE
PH2
+12V
VO2
PH1
VO1
FIGURE 3. TYPICAL APPLICATION CIRCUIT USING INDUCTOR DCR SENSING
Submit Document Feedback
3
FN8336.1
November 2, 2015


3Pages


ISL6377 電子部品, 半導体
Block Diagram
ISL6377
VSEN_NB
COMP_NB
FB_NB
ISUMP_NB
ISUMN_NB
ISEN1_NB
ISEN2_NB
NTC_NB
NTC
VR_HOT_L
ENABLE
PWROK
SVC
SVD
SVT
VDDIO
COMP
VSEN
RTN
FB
ISUMP
ISUMN
ISEN4
ISEN3
ISEN2
ISEN1
RTN
+
_
+
+
+
E/A
_
IDROOP_NB
CURRENT
SENSE
CURRENT
BALANCING
TEMP
MONITOR
NB_V
T_MONITOR
VOLTAGE
A/D
OFFSET
FREQ
SLEWRATE
CONFIG
PROG
DIGITAL
INTERFACE
IDROOP_NB
A/D IDROOP
DAC2
D/A DAC1
TELEMETRY
CORE_I
NB_I
CORE_V
NB_V
CORE_I
NB_I
CURRENT
A/D
VR2
MODULATOR
OC FAULT
IBAL FAULT
OV FAULT
FLOATING
DRIVER AND
PWM
CONFIG
LOGIC
DRIVER
DRIVER
DRIVER
+
+
+
E/A
_
IDROOP
+
CURRENT
_ SENSE
CURRENT
BALANCING
VOLTAGE
A/D
CORE_V
VR1
MODULATOR
OC FAULT
IBAL FAULT
OV FAULT
GND
FIGURE 6. BLOCK DIAGRAM
DRIVER
DRIVER
DRIVER
Submit Document Feedback
6
IMON
IMON_NB
PWM2_NB
FCCM_NB
VDD
PGOOD_NB
BOOTX
UGATEX
PHASEX
LGATEX
PWM_Y
PWM4
VCCP
BOOT2
UGATE2
PHASE2
LGATE2
BOOT1
UGATE1
PHASE1
LGATE1
PGOOD
FN8336.1
November 2, 2015

6 Page



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部品番号部品説明メーカ
ISL6377

Multiphase PWM Regulator

Intersil
Intersil


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