常用芯片数据手册apw7116a

1、APW7116General DescriptionThe APW7116 integrates DualFeatures?buck controllersProvide Synchronous Rectified Buck Controllers for VDDQ and VMCHIntegrated Power FETs with VTT Regulator Source/Sink up to 2.0ADrive Low Cost N-Channel Power MOSFETs Internal 0.8V Reference Voltage for Adjustable VDDQ and

2、VMCHThermal ShutdownVTT Tracks at Half the Reference Voltage Fixed Switching Frequency of 250kHz for VDDQ and VMCHand an internal linear regulator for DDR memory and?MCH power solution. The two synchronousbuckcontrollers drive four N-channel MOSFETs for DDR memory supply voltage (VDDQ) and MCH regul

3、ator. The internal regulator is designed to track at the half of the reference voltage with sourcing and sinkingcurrent for DDR memory termination regulator (VTT).?The APW7116 uses the latched BUF_Cut signal andthe POR of the BOOT to comply with ACPI powersequencing specifications. The tworegulators

4、 alsoprovide POK signals to indicate the regulators aregood. The device also has the phase shift function?Over Currentand Under Voltagefor VDDQ and VMCHFully Complies with ACPI Power Sequencing Specifications180 degrees Phase Shift between VDDQ and VMCHPower Okay Function for VDDQ and VMCHFast Trans

5、ient Responsebetween the twofunctions of the twocontrollers. Thecontrollers include over?current, under voltageand?external soft-start function. The VTT regulator provides2A sinking and sourcing current limit function and also?has thermal shutdown.The TSSOP-24-P package with a copper pad providesexc

6、ellent thermal impedance is available.-um Duty Cycle 90%- High-Bandwidth Error AmplifierSimple single-Loop Control Design?- Voltage ModeControl- External CompensationExternal Soft-Start for VDDQ and VMCHShutdown Function for VDDQ/VTT and VMCH Thermally Enhanced TSSOP-24 Package?LeadAvailable (RoHS C

7、ompliant)Applications·DDR Memory and MCH Power SupplyANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advisecustomers to obtain the latest version of relevnformation to verify before placing orders.Copyright ã ANPEC Electronics Corp.

8、Rev. A.2 - Jul., 200613-in-1 DualBuck and Linear DDR Power ControllerAPW7116Pinout242322212019181716151413COMP1FB1 SS1/EN1 VTTGNDVTT VDDQ AGND VTTFB REFSENFB2 SS2/EN2POK2PHASE1 LGATE1 UGATE1 BOOT VCC COMP2 BUF_CUT UGATE2 LGATE2 GND PHASE2POK11112TSSOP-24-P TOP VIEWOrdering and Marking InformationNot

9、e: ANPEC lead-products contain molding compounds/die attach materials and 100% matte tin platetermination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-soldieringoperations. ANPEC lead-for MSL classification at lead-products meet or exceed the lead-peak reflow te

10、mperature.requirements of IPC/JEDEC J STD-020CCopyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20062APW7116LeadCode Handling Code Temp. RangePackage CodePackage CodeR : TSSOP-24-POperating Ambient Temp. Range E : - 20 to 70 °CHandling CodeTU : TubeTR : Tape & Reel TY : TrayLeadDevi

11、ceL : LeadDeviceBlank : Original DeviceAPW7116 R :X - Date CodeAPWGND BOTTOM SIDE PADAPW7116Block DiagramBUF_CUTVCCBOOTUGATE111uAPower On Reset and Logic ControlGate Control Logic 1SS1/ EN1LGATE111uA110uASS2/ EN2PHASE10.2V60%VREF1UVPComparatorCOMP1110uAPHASE2VREF1 0.8VFB10.2VUGATE2VREF2 0.8VGate Con

12、trol Logic 2FB2180Phase ShiftOscillatorLGATE2COMP2GND60%VREF2UVPComparatorPOK1REFSEN83%90%VREF1VDDQPOK283%90%VREF2VTTVTTFBAGNDVTTGNDCopyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20063APW7116AbsoluteumRatingsNote: Absoluteabsoluteum Ratings are those values beyond which the life of a devi

13、ce may be impaired. Exposure toum rating conditions for extended periods may affect device reliability.Recommended Operating ConditionsCopyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20064SymbolParameterMinTypMaxUnitVCCVCC to AGND4.555.5VVBOOTBOOT to AGND10.81213.2VVINPower Input Voltage o

14、fControllers to AGND2.9755.5VVDDQVDDQ to AGND0.82.5VVMCHVMCH to AGND0.81.5VVREFSENVREFSEN to AGND1.82.5VIVTTVTT Output Current-1.81.8ATJOperating Junction Temperature-20125°CTAOperating Ambient Temperature-2070°CSymbolParameterRatingUnitVCCVCC to AGND-0.3 to 6VVBOOTBOOT to AGND-0.3 to 14VU

15、Gate DriveUGATE1, UGATE2 to GND DC Voltage<100ns pulse width-0.3 to VBOOT+0.3-4 to VBOOT+2VLGate DriveLGATE1, LGATE2 to GND DC Voltage<100ns pulse width-0.3 to VCC+0.3-4 to VCC +2VPHASEPHASE1, PHASE2 to GND DC Voltage<100ns pulse width-0.3 to 14-4 to 16VIOInput/Output Pins to AGNDPins 1-3,

16、5-6, 8-14, 18-19, 24-0.3 to 14VIVTTVTT Output Current+/-2AAGNDGND, VTTGND to AGND-0.3 to +0.3VTJum Junction Temperature+150°CTSTGStorage Temperature Range-65 to +150°CTLLead Temperature (Soldering, 10sec)260°CVESDESD Rating (VHBM)2KVAPW7116Electrical CharacteristicsOperating Condition

17、s: VCC=5V, BOOT=12V, TA = -20°C to 70°C, unless Otherwise Specified.Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20065SymbolParameterTest ConditionsAPW7116UnitMinTypMaxSUPPLY CURRENTIVCCVCC supply Current (S0 Mode)S0 Mode, UGATEs, LGATEs open510mAVCC supply Current (S3 Mode)S3

18、 Mode, UGATEs, LGATEs open2.55mAVCC supply Current (S5 Mode)S5 Mode, UGATEs, LGATEs open0.51.0mAIBOOTBOOT supply Current (S0 Mode)S0 Mode, UGATEs, LGATEs are switching1.55mABOOT supply Current (S3 Mode)S3 Mode, UGATEs, LGATEs are switching15mAPOWER-ON RESET THRESHOLDVCCVower-On Reset ThresholdVCC Ri

19、sing4.04.24.4VVCC Falling3.83.94.0VVBOOTBOOT Power-On Reset ThresholdVBOOT Rising10.010.210.4VVBOOT Falling9.19.39.5VTHERMAL SHUTDOWNTSDThermal Shutdown(Note1)150°CTSDHYSThermal Shutdown Hysteresis(Note1)50°COSCILLATOR (1 and2)FOSCOscillator Frequency225250275kHzDVOSCOscillator Ramp Amplit

20、ude(Note1)1.9VDutyDuty Cycle Range (Note1)090%REFERENCE VOLTAGEVREF1Reference Voltage0.8VReference Voltage Accuracy-1.0+1.0%Load RegulationIVDDQ = 0 to 10A0.2%VREF2Reference Voltage0.8VReference Voltage Accuracy-1.0+1.0%Load RegulationIGMCH = 0 to 5A0.2%APW7116Electrical Characteristics (Cont.)Opera

21、ting Conditions: VCC=5V, BOOT=12V, TA = -20°C to 70°C, unless Otherwise Specified.Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20066SymbolParameterTest ConditionsAPW7116UnitMinTypMaxPOWER OKAY (POK1 and POK2)VPOKLTLow ThresholdFB Falls % of VREF83%VPOKHTHigh ThresholdFB Reache

22、s % of VREF90%ILKGLeakage CurrentVPOK = 5V1uAVPOKOLPOK Low VoltageIPOK = 2mA0.160.3VERROR AMPLIFIER (1 and2)Open Loop Gain(Note1)RL=10kW to GND75dBOpen Loop Bandwidth (Note1)RL=10kW to GND, CL=100pF12MHzSlew Rate (Note1)RL=10kW to GND, CL=100pF8V/usOutput High Source CurrentCOMP = 2.5V40mAOutput Low

23、 Sink CurrentCOMP = 2.5V40mAand MONITOR (1 and2)IOCSETPHASE Source Current90110130uAVOCPOCP Reference Voltage0.170.20.23VFB Under Voltage LevelOutput Falls % of VREF556065%ISSSoft-Start Charge Current81114uASS/EN Shutdown Threshold0.2VVTT REGULATORVTTVTT Output VoltageIOUT = -10mA to 10mA VREFSEN= 2

24、.5V-2020mVIOUT = -10mA to 10mA VREFSEN= 1.8V-13-13mVLoad RegulationIOUT = -2A to 2A-11%Line RegulationVDDQ = 1.8V to 2.5V0.2%RREFSENREFSEN Input(Note1)50kWVTTFB Hysteresis (Note1)% of REFSEN0.1%ILIMVTTVTT Source Current Limit22.53AVTT Sink Current Limit22.53ARDS(ON)Internal Power FETs RDS(ON)0.30.4W

25、Internal Soft-Start Interval(Note1)0.5msAPW7116Electrical Characteristics (Cont.)Note1: Guaranteed by design, not tested in production.Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20067SymbolParameterTest ConditionsAPW7116UnitMinTypMaxBUF_CUT CONTROLVBUF_CUTHBUF_CUT Input Logic High2.0V

26、VBUF_CUTLBUF_CUT Input Logic Low0.8VIBUF_CUTBUF_CUT Input Current135uAGate DriversUGATE1 SourceBOOT=12V, UGATE1=2V11.5AUGATE1 SinkVCC=5V, UGATE1=2V1.21.8WLGATE1 SourceBOOT=12V, LGATE1=2V1.72.5ALGATE1 SinkVCC=5V, LGATE1=2V0.450.675WUGATE2 SourceBOOT=12V, UGATE2=2V0.71AUGATE2 SinkVCC=5V, UGATE2=2V2.33

27、.45WLGATE2 SourceBOOT=12V, LGATE2=2V1.31.9ALGATE2 SinkVCC=5V, LGATE2=2V0.60.9WDead Time (Note1)20nsAPW7116Typical Application Circuit12V2R21N41481uF1uF1N414810n1N41481uH/10A5VDUALVCCCOMP1BOOT20k6.8nFFiltered 5VDUAL0.1uFVDDQ2.37kFB11uF1500uF2R2UGATE11.13k1.8uHVDDQ8100nF10n6.2kAPM2509NPHASE12200uF2200

28、uF0RLGATE14.7nFCOMP220k6.8nFAPM2506N2R2GNDVMCH2.2kFB2Filtered 5VDUAL or 3.3V2.5kAPW711681uF100nFAPM2014N1500uF2R2UGATE2VMCH1.8uHPull High Voltage8.1k1000uFPHASE2POK11000uF10k0RLGATE24.7nF2R210kAPM2014NPOK2REFSENBUF_CUTVDDQSS1/EN12N7002470uFVTT2N7002EN1VTTSS2/EN20.1uF1uF470uFEN20.1uF0.1uFVTTFB VTTGND

29、AGNDCopyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 20068APW7116Pin DescriptionsCOMP1 (Pin1), COMP2 (Pin19)regulated to 1/2 of this voltage. Connect to point ofload.These pins are the output of error amplifiers of their respective regulators. They are used to set the com-pensation componen

30、ts.POK1 (Pin13), POK2 (Pin12)These pins are open-drain pull-down devices. When respective FB falls 83% of reference voltage, the out- put is pulled low. When respective FB reaches 90% reference voltage, the output is pulled high, for poweris okay.FB1 (Pin2), FB2 (Pin10)These pins are the inverting i

31、nput of the error amplifi- ers of their respective regulators. They are used to set the output voltage and the compensation components. If the FB voltage is under 60% of reference voltage,because of the short circuit or other influence, it willPHASE1 (Pin24), PHASE (Pin14)A resistor (ROCSET) is conn

32、ected between this pinand the drain of the low-side MOSFET will determinecause the under voltage, and turn off allregulators. Remove the error condition and restart theVCC voltage, the device will enable again.the over current limit ofconveter.GND (Pin15)SS1 (Pin3), SS2 (Pin11)This pin is the power

33、ground pin for the gate drivers.UGATE1 (Pin22), UGATE2 (Pin17)These pins provide the gate drivers for the upper MOSFETs of VDDQ and VMCH.LGATE (Pin23), LGATE (Pin16)These pins provide the gate drivers for the lower MOSFETs of VDDQ and VMCH.BUF_CUT (Pin18)Active high control signal to activate S3 sle

34、ep state. BUF_CUT is pulled low by internal 3uA current source.Connect a capacitor to GND for setting the soft-start time. Use an open drain logic signal to pull the SS/EN pin low to disable the respective output, leave open toenable the respective output.VTTGND (Pin4)VTT return. Connect to copper p

35、lane carrying VTT re- turn current. The trace connecting to this pin must beable to carry 2A.VTT (Pin5)VTT regulator output.VDDQ (Pin6)Power input for VTT regulator.AGND (Pin7)Analog ground. Compensation Components and the Soft-Start capacitors connect to this ground.VTTFB (Pin8)VCC (Pin20)Power sup

36、ply input pin. Connect a nominal 5V power supply to this pin for control circuit and lower gatedrivers.BOOT (Pin21)Upper gate drivers input supply.VTT regulation pin forREFSEN (Pin9)d loop regulation.Reference voltage input of VTT regulator. VTT will beCopyright ã ANPEC Electronics Corp. Rev. A

37、.2 - Jul., 20069APW7116Typical CharacteristicsSink Current vs. UGATE1 VoltageSource Current vs. BOOT-UGATE1 Voltage543.5432.53221.5110.500024681012024681012BOOT-UGATE1 Voltage (V)UGATE1 Voltage (V)Source Current vs. VCC-LGATE1 VoltageSink Current vs. LGATE1 Voltage74.5463.532.521.510.505432100123450

38、12345LGATE1 Voltage (V)VCC-LGATE1 Voltage (V)Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200610Source Current (A)Source Current (A)Sink Current (A)Sink Current (A)APW7116Typical Characteristics (Cont.)Source Current vs. BOOT-UGATE2 VoltageSink Current vs. UGATE2 Voltage322.51.521.5110.

39、50.500024681012024681012BOOT-UGATE2 Voltage (V)UGATE2 Voltage (V)Source Current vs. VCC-LGATE2 VoltageSink Current vs. LGATE2 Voltage352.54231.52110.500012345012345VCC-LGATE2 Voltage (V)LGATE2 Voltage (V)Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200611Source Current (A)Source Current

40、 (A)Sink Current (A)Sink Current (A)APW7116Typical Characteristics (Cont.)FB Voltage vs. TemperatureDVTT Voltage vs. VTT Load Curren2-4-6-8-10-12-14B2796794FB1792790-2 -1.5-1 -0.500.511.52-40 -20020 40 60 80 100 120Temperature ()140VTT Load Current (A)Switching Frequency

41、 vs. TemperatureOCSET Currentvs. Temperature260113112255111250110245109108240107235106105230-40 -20 0 20 40 60 80 100 120 140 160Temperature ()-40 -20 0 20 40 60 80 100 120 140 160Temperature ()Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200612OCSET Current (uA)DVTT Voltage (V)Switchin

42、g Frequency (kHz)FB Voltage (mV)APW7116Typical Characteristics (Cont.)VDDQ & VTT Power Up1VDDQ & VMCH Power UpVDDQ (1V/div)VDDQ pin= VDDQ outputSS2 (2V/div)Time (10ms/div)Time (10ms/div)Phase ShiftVDDQ & VTT Power Up2VDDQ (2V/div)VTT (1V/div)LG2 (5V/div)Time (10ms/div)Time (1us/div)Copyr

43、ight ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200613VDDQ pin= external supplyUG2 (10V/div)BOOT (5V/div)LG1 (5V/div)UG1 (10V/div)SS1 (2V/div)VMCH(1V/div)VTT (1V/div)VDDQ (1V/div)SS1 (2V/div)SS1 (2V/div)APW7116Typical Characteristics (Cont.)Enable VDDQDisable VDDQPOK1 (5V/div)SS1 (2V/div)UG1 (1

44、0V/div)Time (10ms/div)Time (10ms/div)Disable VMCHEnable VMCHPOK1 (5V/div)POK1 (5V/div)VMCH (2V/div)VMCH (2V/div)UG1 (10V/div)Time (10ms/div)Time (10ms/div)Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200614UG1 (10V/div)SS1 (2V/div)SS1 (2V/div)UG1 (10V/div)SS1 (2V/div)VDDQ (2V/div)VDDQ (

45、2V/div)POK1 (5V/div)APW7116Typical Characteristics (Cont.)UG1 RisingUG1 FallingUG1 (5V/div)PHASE1 (5V/div)LG1 (5V/div)LG1 (5V/div)Time (20ns/div)Time (20ns/div)UG2 FallingUG2 RisingUG2 (5V/div)UG2 (5V/div)PHASE2 (5V/div)LG2 (5V/div)Time (20ns/div)Time (20ns/div)Copyright ã ANPEC Electronics Corp. Rev. A.2 - Jul., 200615LG2 (5V/div)PHASE2 (5V/div)PHASE1 (5V/div)UG1 (5V/div)APW7116Typical Characteristics (Cont.)S0 to S3S3 to S0VDDQ (2V/div)VDDQ (2V/div)VMCH (1V/div)VMCH (1V/div)VTT (1V/div)BUF_CUT (5V/div)Time (5ms/div)Time (5ms/div)