ncp5395t ON Semiconductor, ncp5395t Datasheet
ncp5395t
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ncp5395t Summary of contents
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... Controller with On Board Gate Drivers for CPU Applications The NCP5395T provides four−phase buck solution which combines differential voltage sensing, differential phase current sensing, and adaptive voltage positioning to provide accurately 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 ...
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... VCC 4.25 V GND (FLAG) Overvoltage Protection - + + - + - + + + + - + - + - I Limit + - UVLO Figure 1. NCP5395T Functional Block Diagram http://onsemi.com 2 VCCP BST1 Phase 1 TG1 Gate Driver with SWN1 Adaptive Non−overlap BG1 BST2 Phase 2 TG2 Gate Driver with SWN2 Adaptive Non−overlap BG2 BST3 Phase 3 TG3 Gate Driver ...
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... PSI#_CPU VID0 VID1 VID2 VID3 VID4 VID5 VID6 VID7 IMON VCCP 13 IMON CFB RFB 14 VSP 15 VSN 16 DIFFOUT RF RFB 17 COMP CH NCP5395T 18 CF 48L 7x7 QFN VFB RDRP FLAG = GND 19 VDRP CDFB 20 VDFB RDFB R 21 CSSUM 22 RISO RISO DAC RT 23 12V_FILTER 12VMON 24 VCC +5 ...
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... PSI#_CPU VID0 VID1 VID2 VID3 VID4 VID5 VID6 VID7 VCCP IMON 13 CFB RFB 14 VSP 15 VSN 16 DIFFOUT RF RFB 17 CH COMP NCP5395T 48L 7x7 QFN 18 CF VFB FLAG = GND RDRP 19 VDRP CDFB 20 VDFB RDFB R 21 CSSUM RT 22 DAC RISO RISO 23 12VMON 12V_FILTER 24 VCC +5 ...
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... PSI#_CPU VID0 VID1 VID2 VID3 VID4 VID5 VID6 VID7 IMON VCCP 13 IMON 14 CFB VSP RFB 15 VSN RFB 16 DIFFOUT RF 17 COMP NCP5395T CH 18 48L 7x7 QFN CF VFB FLAG = GND RDRP 19 VDRP CDFB 20 VDFB RDFB 21 CSSUM RT 22 DAC RISO RISO 23 12VMON 12V_FILTER VCC 24 +5 ...
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Table 1. Pin Descriptions Pin No. Symbol 1 BG3 Low side gate drive #3 2 PSI Power Saving Control. Low = single phase operation; High = normal operation 3 VID0 Voltage ID DAC input 4 VID1 Voltage ID DAC input ...
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ABSOLUTE MAXIMUM RATINGS Rating ELECTRICAL INFORMATION Controller Power Supply Voltages to GND Driver Power Supply Voltages to GND High−Side Gate Driver Supplies: BSTx to SWNx High−Side FET Gate Driver Voltages: TGx to SWNx Switch Node: SWNx Low−Side Gate Drive: BGx ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter ERROR AMPLIFIER Open Loop DC Gain Open Loop Unity Gain Bandwidth Open Loop Phase Margin Slew Rate Maximum Output Voltage Minimum Output ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter VDROOP AMPLIFIER Inverting Voltage Range Open Loop DC Gain Open Loop Unity Gain Bandwidth Open Loop Phase Margin Slew Rate Maximum Output ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter CURRENT SENSE AMPLIFIERS Current Sense Input to PWM Gain Current Sense Input to CSSUM Gain IMON V to IMON Gain DRP Current ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter VR_RDY (Power Good) OUTPUT VR_RDY Rising Delay VR_RDY Falling Delay PWM G4 OUTPUT Output High Voltage Mid Output Voltage Output Low Voltage ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter ENABLE INPUT Enable High Input Leakage Current VR11.1 Threshold AMD Upper Threshold AMD Lower Threshold AMD Total Hysteresis Enable Delay Time CURRENT ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter DIGITAL DAC SLEW RATE LIMITER Slew Rate Limit (Intel Mode) Slew Rate Limit (AMD Mode) Soft−Start Slew Rate INPUT SUPPLY CURRENT V ...
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ELECTRICAL CHARACTERISTICS 0°C < T < 70°C; 0°C < T < 125°C; 4.75 < Parameter HIGH SIDE DRIVER R Output Resistance, Sourcing H_TG R Output Resistance, Sinking H_TG Tr Transition Time DRVH Tf Transition Time DRVH Tpdh ...
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Table 2. VRM11 V CODES ID7 ID6 ID5 800 mV 400 mV 200 ...
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Table 2. VRM11 V CODES ID7 ID6 ID5 800 mV 400 mV 200 ...
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Table 2. VRM11 V CODES ID7 ID6 ID5 800 mV 400 mV 200 ...
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Table 2. VRM11 V CODES ID7 ID6 ID5 800 mV 400 mV 200 ...
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Parameter AMD DAC System Voltage Accuracy 5. NOTE: Internal DAC voltage is centered 19 mV below the listed voltage for VR11.1. No DAC offset is implemented for AMD operation. DAC should be equal to the Nominal V Table 3. AMD ...
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Table 3. AMD PROCESSOR 6−BIT Codes ID5 ID4 ID3 ID2 ID1 ...
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... General The NCP5395T dual edge modulated multiphase PWM controller is specifically designed with the necessary features for a high current CPU system. The IC consists of the following blocks: Precision Flexible DAC, Differential Remote Voltage Sense Amplifier, High Performance Voltage Error Amplifier, Differential Current Feedback Amplifiers, Precision Oscillator and Saw− ...
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R = 15530 x F ^(-1.111) osc sw PWM Comparators Four PWM comparators are incorporated within the IC. The non−inverting input of the comparators is connected to the output of the error amplifier. The inverting input is connected to a ...
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IC. Another item is using a GND plane. Ground plane can provide a good return path for gate drives for reducing the ground noise. Therefore GND pin should ...
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ENABLE 5 V VID7/AMD 1 ms − Rise Time − Rise Time CCP V and V CC CCP UVLO DRVON VOUT/DAC VR_RDY Figure 7. AMD / Legacy ...
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... BOTTOM VIEW The products described herein (NCP5395T), may be covered by one or more of the following U.S. patents; US07057381.There may be other patents pending. Devices are ESD sensitive, handling precaution recommended. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...