SLUSEJ1 December   2021 TPSM8D6C24

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Average Current-Mode Control
        1. 7.3.1.1 On-Time Modulator
        2. 7.3.1.2 Current Error Integrator
        3. 7.3.1.3 Voltage Error Integrator
      2. 7.3.2  Linear Regulators
      3. 7.3.3  AVIN and PVIN Pins
      4. 7.3.4  Input Undervoltage Lockout (UVLO)
        1. 7.3.4.1 Fixed AVIN UVLO
        2. 7.3.4.2 Fixed VDD5 UVLO
        3. 7.3.4.3 Programmable PVIN UVLO
        4. 7.3.4.4 EN/UVLO Pin
      5. 7.3.5  Start-Up and Shutdown
      6. 7.3.6  Differential Sense Amplifier and Feedback Divider
      7. 7.3.7  Set Output Voltage and Adaptive Voltage Scaling (AVS)
        1. 7.3.7.1 Reset Output Voltage
        2. 7.3.7.2 Soft Start
      8. 7.3.8  Prebiased Output Start-Up
      9. 7.3.9  Soft Stop and (65h) TOFF_FALL Command
      10. 7.3.10 Power Good (PGOOD)
      11. 7.3.11 Set Switching Frequency
      12. 7.3.12 Frequency Synchronization
      13. 7.3.13 Loop Follower Detection
      14. 7.3.14 Current Sensing and Sharing
      15. 7.3.15 Telemetry
      16. 7.3.16 Overcurrent Protection
      17. 7.3.17 Overvoltage/Undervoltage Protection
      18. 7.3.18 Overtemperature Management
      19. 7.3.19 Fault Management
      20. 7.3.20 Back-Channel Communication
      21. 7.3.21 Switching Node (SW)
      22. 7.3.22 PMBus General Description
      23. 7.3.23 PMBus Address
      24. 7.3.24 PMBus Connections
    4. 7.4 Device Functional Modes
      1. 7.4.1 Programming Mode
      2. 7.4.2 Standalone/Loop Controller/Loop Follower Mode Pin Connections
      3. 7.4.3 Continuous Conduction Mode
      4. 7.4.4 Operation With CNTL Signal (EN/UVLO)
      5. 7.4.5 Operation with (01h) OPERATION Control
      6. 7.4.6 Operation with CNTL and (01h) OPERATION Control
    5. 7.5 Programming
      1. 7.5.1 Supported PMBus Commands
      2. 7.5.2 Pin Strapping
        1. 7.5.2.1 Programming MSEL1
        2. 7.5.2.2 Programming MSEL2
        3. 7.5.2.3 Programming VSEL
        4. 7.5.2.4 Programming ADRSEL
        5. 7.5.2.5 Programming MSEL2 for a Loop Follower Device (GOSNS Tied to BP1V5)
        6. 7.5.2.6 Pin-Strapping Resistor Configuration
    6. 7.6 Register Maps
      1. 7.6.1  Conventions for Documenting Block Commands
      2. 7.6.2  (01h) OPERATION
      3. 7.6.3  (02h) ON_OFF_CONFIG
      4. 7.6.4  (03h) CLEAR_FAULTS
      5. 7.6.5  (04h) PHASE
      6. 7.6.6  (10h) WRITE_PROTECT
      7. 7.6.7  (15h) STORE_USER_ALL
      8. 7.6.8  (16h) RESTORE_USER_ALL
      9. 7.6.9  (19h) CAPABILITY
      10. 7.6.10 (1Bh) SMBALERT_MASK
      11. 7.6.11 (1Bh) SMBALERT_MASK_VOUT
      12. 7.6.12 (1Bh) SMBALERT_MASK_IOUT
      13. 7.6.13 (1Bh) SMBALERT_MASK_INPUT
      14. 7.6.14 (1Bh) SMBALERT_MASK_TEMPERATURE
      15. 7.6.15 (1Bh) SMBALERT_MASK_CML
      16. 7.6.16 (1Bh) SMBALERT_MASK_OTHER
      17. 7.6.17 (1Bh) SMBALERT_MASK_MFR
      18. 7.6.18 (20h) VOUT_MODE
      19. 7.6.19 (21h) VOUT_COMMAND
      20. 7.6.20 (22h) VOUT_TRIM
      21. 7.6.21 (24h) VOUT_MAX
      22. 7.6.22 (25h) VOUT_MARGIN_HIGH
      23. 7.6.23 (26h) VOUT_MARGIN_LOW
      24. 7.6.24 (27h) VOUT_TRANSITION_RATE
      25. 7.6.25 (29h) VOUT_SCALE_LOOP
      26. 7.6.26 (2Bh) VOUT_MIN
      27. 7.6.27 (33h) FREQUENCY_SWITCH
      28. 7.6.28 (35h) VIN_ON
      29. 7.6.29 (36h) VIN_OFF
      30. 7.6.30 (37h) INTERLEAVE
      31. 7.6.31 (38h) IOUT_CAL_GAIN
      32. 7.6.32 (39h) IOUT_CAL_OFFSET
      33. 7.6.33 (40h) VOUT_OV_FAULT_LIMIT
      34. 7.6.34 (41h) VOUT_OV_FAULT_RESPONSE
      35. 7.6.35 (42h) VOUT_OV_WARN_LIMIT
      36. 7.6.36 (43h) VOUT_UV_WARN_LIMIT
      37. 7.6.37 (44h) VOUT_UV_FAULT_LIMIT
      38. 7.6.38 (45h) VOUT_UV_FAULT_RESPONSE
      39. 7.6.39 (46h) IOUT_OC_FAULT_LIMIT
      40. 7.6.40 (47h) IOUT_OC_FAULT_RESPONSE
      41. 7.6.41 (4Ah) IOUT_OC_WARN_LIMIT
      42. 7.6.42 (4Fh) OT_FAULT_LIMIT
      43. 7.6.43 (50h) OT_FAULT_RESPONSE
      44. 7.6.44 (51h) OT_WARN_LIMIT
      45. 7.6.45 (55h) VIN_OV_FAULT_LIMIT
      46. 7.6.46 (56h) VIN_OV_FAULT_RESPONSE
      47. 7.6.47 (58h) VIN_UV_WARN_LIMIT
      48. 7.6.48 (60h) TON_DELAY
      49. 7.6.49 (61h) TON_RISE
      50. 7.6.50 (62h) TON_MAX_FAULT_LIMIT
      51. 7.6.51 (63h) TON_MAX_FAULT_RESPONSE
      52. 7.6.52 (64h) TOFF_DELAY
      53. 7.6.53 (65h) TOFF_FALL
      54. 7.6.54 (78h) STATUS_BYTE
      55. 7.6.55 (79h) STATUS_WORD
      56. 7.6.56 (7Ah) STATUS_VOUT
      57. 7.6.57 (7Bh) STATUS_IOUT
      58. 7.6.58 (7Ch) STATUS_INPUT
      59. 7.6.59 (7Dh) STATUS_TEMPERATURE
      60. 7.6.60 (7Eh) STATUS_CML
      61. 7.6.61 (7Fh) STATUS_OTHER
      62. 7.6.62 (80h) STATUS_MFR_SPECIFIC
      63. 7.6.63 (88h) READ_VIN
      64. 7.6.64 (8Bh) READ_VOUT
      65. 7.6.65 (8Ch) READ_IOUT
      66. 7.6.66 (8Dh) READ_TEMPERATURE_1
      67. 7.6.67 (98h) PMBUS_REVISION
      68. 7.6.68 (99h) MFR_ID
      69. 7.6.69 (9Ah) MFR_MODEL
      70. 7.6.70 (9Bh) MFR_REVISION
      71. 7.6.71 (9Eh) MFR_SERIAL
      72. 7.6.72 (ADh) IC_DEVICE_ID
      73. 7.6.73 (AEh) IC_DEVICE_REV
      74. 7.6.74 (B1h) USER_DATA_01 (COMPENSATION_CONFIG)
      75. 7.6.75 (B5h) USER_DATA_05 (POWER_STAGE_CONFIG)
      76. 7.6.76 (D0h) MFR_SPECIFIC_00 (TELEMETRY_CONFIG)
      77. 7.6.77 (DAh) MFR_SPECIFIC_10 (READ_ALL)
      78. 7.6.78 (DBh) MFR_SPECIFIC_11 (STATUS_ALL)
      79. 7.6.79 (DCh) MFR_SPECIFIC_12 (STATUS_PHASE)
      80. 7.6.80 (E4h) MFR_SPECIFIC_20 (SYNC_CONFIG)
      81. 7.6.81 (ECh) MFR_SPECIFIC_28 (STACK_CONFIG)
      82. 7.6.82 (EDh) MFR_SPECIFIC_29 (MISC_OPTIONS)
      83. 7.6.83 (EEh) MFR_SPECIFIC_30 (PIN_DETECT_OVERRIDE)
      84. 7.6.84 (EFh) MFR_SPECIFIC_31 (Loop Follower_ADDRESS)
      85. 7.6.85 (F0h) MFR_SPECIFIC_32 (NVM_CHECKSUM)
      86. 7.6.86 (F1h) MFR_SPECIFIC_33 (SIMULATE_FAULT)
      87. 7.6.87 (FCh) MFR_SPECIFIC_44 (FUSION_ID0)
      88. 7.6.88 (FDh) MFR_SPECIFIC_45 (FUSION_ID1)
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  Switching Frequency
        3. 8.2.2.3  Output Voltage Setting (VSEL Pin)
        4. 8.2.2.4  Compensation Selection (MSEL1 Pin)
        5. 8.2.2.5  Output Capacitor Selection
          1. 8.2.2.5.1 Output Voltage Ripple
        6. 8.2.2.6  Input Capacitor Selection
        7. 8.2.2.7  Soft Start, Overcurrent Protection, and Stacking Configuration (MSEL2 Pin)
        8. 8.2.2.8  Enable and UVLO
        9. 8.2.2.9  ADRSEL
        10. 8.2.2.10 BCX_CLK and BCX_DAT
      3. 8.2.3 Application Curves
      4. 8.2.4 Two-Phase Application
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Two-Phase Detailed Design Procedure
          1. 8.2.4.2.1  Switching Frequency
          2. 8.2.4.2.2  Output Voltage Setting (VSEL Pin)
          3. 8.2.4.2.3  Compensation Selection (MSEL1 Pin)
          4. 8.2.4.2.4  Output Capacitor Selection
          5. 8.2.4.2.5  Input Capacitor Selection
          6. 8.2.4.2.6  GOSNS/Loop Follower Pin of Loop Follower Devices
          7. 8.2.4.2.7  Soft Start, Overcurrent Protection, and Stacking Configuration (MSEL2 Pin)
          8. 8.2.4.2.8  Enable, UVLO
          9. 8.2.4.2.9  VSHARE Pin
            1. 8.2.4.2.9.1 ADRSEL Pin
          10. 8.2.4.2.10 SYNC Pin
          11. 8.2.4.2.11 VOSNS Pin of Loop Follower Devices
          12. 8.2.4.2.12 Unused Pins of Loop Follower Devices
        3. 8.2.4.3 Two-Phase Application Curves
      5. 8.2.5 Four-Phase Application
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Thermal Performance on the TI EVM
      2. 10.2.2 EMI
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Texas Instruments Fusion Digital Power Designer
        2. 11.1.2.2 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • MOW|59
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Electrical Characteristics

TJ = –40°C to 125°C, VPVIN = VAVIN= 12 V, fSW = 550 kHz; zero power dissipation (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT SUPPLY
VAVINInput supply voltage rangeController input voltage with internal LDO4.2518V
VAVIN Input supply voltage range Controller input voltage with valid external bias 2.95 18
VPVINPower stage voltage rangePower stage input voltage with internal LDO4.2516
VPVIN Power stage voltage range Power stage input voltage with valid external bias 2.95 16
IAVINInput operating currentConverter not switching, each phase12.517mA
AVIN UVLO
VAVINuvloAnalog input voltage UVLO for power on reset (PMBus communication)Enable threshold2.52.7V
Analog input voltage UVLO for disable2.092.3V
Analog input voltage UVLO hysteresis250mV
tdelay(uvlo_PMBus) Delay from AVIN UVLO to PMBus ready to communicate AVIN = 3 V 8 ms
PVIN UVLO
VIN_ONPower input turn-on voltageFactory default setting2.75V
Programmable range2.7515.75
Resolution0.25
Accuracy –5%5%
VIN_OFFPower input turn-off voltageFactory default setting2.5V
Programmable range2.515.5
Resolution0.25
Accuracy –5%5%
ENABLE AND UVLO
VENuvloEN/UVLO voltage rising threshold1.051.1V
EN/UVLO voltage falling threshold0.9
VENhysEN/UVLO voltage hysteresisNo external resistors on EN/UVLO70mV
IENhysEN/UVLO hysteresis currentVEN/UVLO = 1.1 V4.55.56.5uA
EN/UVLO hysteresis currentVEN/UVLO = 0.9 V–100–5nA
REMOTE SENSE AMPLIFIER
ZRSARemote sense input impedanceVOSNS  – GOSNS = 1 VVOSNS to GOSNS85130165
VIRNG(GOSNS)GOSNS input range for regulation accuracy (1)VOSNS  – GOSNS = 1 V, VOUT_SCALE_LOOP ≤ 0.5 –0.050.05V
VIRNG(VOSNS)VOSNS input range for regulation accuracy (1)GOSNS = AGND, VOUT_SCALE_LOOP ≤ 0.5 –0.15.5V
REFERENCE VOLTAGE AND ERROR AMPLIFIER
VREFReference voltage(1)Default setting0.4V
Reference voltage range(1)0.250.75V
Reference voltage resolution(1)2 –12V
VOUT(ACC)Output voltage accuracyVOUT = 1000 mV –40°C ≤ TJ ≤ 150°C(2)0.9921.008V
VOUT = 500 mV0.4920.508V
VOUT = 1500 mV1.4901.510V
VOUT = 1000 mV 0°C ≤ TJ ≤ 125°C(2)0.9941.006V
VOUT = 500 mV0.4940.506V
VOUT = 1500 mV1.4921.508V
VOUT = 1000 mV0°C ≤ TJ ≤ 85°C(2)0.9951.005V
VOUT = 500 mV0.4950.505V
VOUT = 1500 mV1.4931.507V
GmEAProgrammable error amplifier transonductance25200µS
Resolution(1)Four settings: 25 μS, 50 μS, 100 μS, 200 μS25
Unloaded bandwidth(1)8MHz
RpEAProgrammable parallel resistor range5315kΩ
Resolution(1)5
CintEAProgrammable integrator capacitor range1.2518.75pF
Resolution(1)1.25pF
CpEAProgrammable parallel capacitor range6.25193.75pF
Resolution(1)6.25
CURRENT GM AMPLIFIER
GmBUFProgrammable current error amplifier transonductance25200µS
Resolution(1)Four settings: 25 µS, 50 µS, 100 µS, 200 µS25
Unloaded bandwidth(1)17MHz
RpBUFProgrammable parallel resistor range5315kΩ
Resolution(1)5
RintBUFProgrammable integrator resistor range(1)8001600kΩ
Resolution(1)800
CintBUFProgrammable integrator capacitor range0.31254.6875pF
Resolution(1)0.3125
CpBUFProgrammable parallel capacitor range3.12596.875pF
Resolution(1)3.125
OSCILLATOR
fSWAdjustment range(2)2751100kHz
Switching frequency(2)500550600
SYNCHRONIZATION
VIH(sync)High-level input voltage1.35V
VIL(sync)Low-level input voltage0.8
tpw(sync)Sync input minimum pulse width200ns
ΔfSYNCSYNC pin frequency range from FREQUENCY_SWITCH frequency(1) –20%20%
VOH(sync)Sync output high voltage100-μA loadVDD5  –0.85VVDD5V
VOL(sync)Sync output low voltage2.4-mA load0.4V
tPLLPLL lock timeFsw = 550 kHz, SYNC clock frequency 495 kHz–605 kHz(1)65μs
PhaseErrPhase interleaving error(5)fsw < 1.1 MHz9Degree
fsw ≥1.1 MHz23ns
RESET
VIH(reset)High-level input voltage(1)1.35V
VIL(reset)Low-level input voltage0.8
tpw(reset)Minimum RESET_B pulse width200ns
Rpullup(reset)Internal pullup resistanceVRESET = 0.8VRESET# = 1253455
Vpullup(reset)Internal pullup voltageIRESET = 10 μARESET# = 1VDD5 – 0.5V
VDD5 REGULATOR
VVDD5Regulator output voltageDefault, IVDD5 = 10 mA4.54.74.9V
Programmable range(1)3.95.3V
Resolution200mV
VVDD5(do)Regulator dropout voltageVAVIN  – VVDD5, VAVIN = 4.5 V, IVDD5 = 25 mA130285mV
IVDD5SCRegulator short-circuit current(1)VAVIN = 4.5 V100mA
VVDD5ON(IF)Enable voltage on VDD5 for pin-strapping2.622.85V
VVDD5OFF(IF)Disable voltage on VDD5 for pin-strapping2.252.48V
VVDD5ON(SW)Switching enable voltage upon VDD54.05V
VVDD5OFF(SW)Switching disable voltage upon VDD53.10V
VVDD5UV(hyst)Regulator UVLO voltage hysteresis400mV
VBOOT(drop)Bootstrap voltage dropIBOOT = 20 mA, VDD5 = 4.5 V225mV
BP1V5 REGULATOR
VBP1V51.5-V regulator output voltageVAVIN ≥ 4.5 V, IBP1V5 = 5 mA1.421.51.58V
IBP1V5SC1.5-V regulator short-circuit current(1)30mA
PWM
tON(min)Minimum controllable pulse width(1)20ns
tOFF(min)PWM Minimum off time(1)400500ns
SOFT START
tON_RISESoft-start timeFactory default setting3ms
Programmable range(1)(3)031.75
Resolution0.25
Accuracy, TON_RISE = 3 ms –10%15%
tON_MAX_FLT_LTUpper limit on the time to power up the outputFactory default setting(4)0ms
Programmable range(1)(4)0127.5
Resolution0.5
Accuracy(1) –10%15%
tON_DELAYTurn-on delayFactory default setting0ms
Programmable range(1)0127.5
Resolution0.5
Accuracy(1) –10%15%
SOFT STOP
tOFF_FALLSoft-stop timeFactory default setting(3)0.5ms
Programmable range(1)(3)031.75
Resolution0.25
Accuracy, TOFF_FALL = 1 ms –10%15%
tOFF_DELAYTurn-off delayFactory default setting0ms
Programmable range(1)0127.5
Resolution0.5
Accuracy(1) –10%15%
POWER INPUT OVERVOLTAGE/UNDERVOLTAGE
VPVINOVFPower input overvoltage fault limitFactory default20V
Programmable range620
Resolution1
VPVINUVWPower input undervoltage warning limitFactory default2.5V
Programmable range2.515.75
Resolution0.25
POWER STAGE
RHS High-side power device on-resistance VBOOT - VSW = 4.5 V, TJ = 25°C 4.5
RLS Low-side power device on-resistance VVDD5 = 4.5 V, TJ = 25°C 0.9
RswpdSW internal pulldown resistance33035kΩ
Vwkdr(on)Weak high-side gate drive triggering threshold upon PVIN rising14.75V
Vwkdr(off)Weak high-side gate drive recovering threshold upon PVIN falling14.35V
tDEAD(LtoH)Power stage driver dead-time from low-side off to high-side onVVDD5 = 4.5 V, TJ = 25°C(1)6ns
tDEAD(HtoL)Power stage driver dead-time from high-side off to low-side onVVDD5 = 4.5 V, TJ = 25°C(1)6ns
CURRENT SHARING
ISHARE(acc)Output current sharing accuracy of two devices defined as the ratio of the current difference between two devices to the sum of the twoIOUT ≥ 20 A per device(5) –10%10%
Output current sharing accuracy of two devices defined as the current difference between each device and the average of all devicesIOUT < 20 A per device(5) –22A
VVSHAREVSHARE fault trip threshold0.1V
VSHARE fault release threshold0.2
LOW-SIDE CURRENT LIMIT PROTECTION
tOFF(OC)Off time between restart attempts(1)Factory default setting7 × tON_RISEms
Range1 × tON_RISE7 × tON_RISE
IO_OC_FLT_LMTOutput current overcurrent fault thresholdFactory default setting52A
Programmable range862
Resolution2
INEGOCNegative output current overcurrent protection threshold –20
IO_OC_WRN_LMTOutput current overcurrent warning thresholdFactory default setting40A
Programmable range862
Resolution2
IOC(acc)Output current overcurrent fault errorIOUT = 20 A –24A
IOUT = 35 A(5) –48
HIGH-SIDE SHORT CIRCUIT PROTECTION
IHSOCRatio of high-side short-circuit protection fault threshold over low-side overcurrent limitTJ = 25°C(5)105%150%200%
High-side current sense blanking time100ns
POWER GOOD (PGOOD) AND OVERVOLTAGE/UNDERVOLTAGE WARNING
RPGDPGD pulldown resistanceIPGD = 5 mA3050Ω
IPGD(OH)Output high open drain leakage current into PGD pinVPGD = 5 V15µA
VPGD(OL)PGD pin output low level voltage at no supply voltageVAVIN = 0, IPGD = 80 μA0.8V
VOVWOvervoltage warning threshold (PGD threshold on VOSNS rising)Factory default, at VOUT_COMMAND (VOC) = 1 V106%110%114%VOC
Range103%116%
Resolution1%
VUVWUndervoltage warning threshold (PGD threshold on VOSNS falling)Factory default, at VOUT_COMMAND (VOC) = 1 V86%90%94%
Range84%97%
Resolution1%
VPGD(rise)PGD release threshold on VOSNS rising and undervoltage warning de-assertion thresholdFactory default, at VOUT_COMMAND (VOC) = 1 V95%
VPGD(fall)PGD threshold on VOSNS falling and overvoltage warning de-assertion thresholdFactory default, at VOUT_COMMAND (VOC) = 1 V105%
OUTPUT OVERVOLTAGE AND UNDERVOLTAGE FAULT PROTECTION
VOVFOvervoltage fault thresholdFactory default, at VOUT_COMMAND (VOC) = 1 VFactory default, at VOUT_COMMAND (VOC) = 1 V111%115%119%VOC
RangeFactory default, at VOUT_COMMAND (VOC) = 1 VFactory default, at VOUT_COMMAND (VOC) = 1 V105%140%
ResolutionFactory default, at VOUT_COMMAND (VOC) = 1 VFactory default, at VOUT_COMMAND (VOC) = 1 V2.5%
VUVFUndervoltage fault thresholdFactory default, at VOUT_COMMAND (VOC) = 1 VFactory default, at VOUT_COMMAND = 1.00 V81%85%89%
RangeFactory default, at VOUT_COMMAND = 1.00 VFactory default, at VOUT_COMMAND = 1.00 V60%95%
ResolutionFactory default, at VOUT_COMMAND = 1.00 VFactory default, at VOUT_COMMAND = 1.00 V2.5%
VOVF(fix)OFFFixed overvoltage fault thresholdFactory default, at VOUT_COMMAND (VOC) = 1 VFactory default, at VOUT_COMMAND = 1.00 V1.151.21.25V
Recovery threshold(1)Factory default, at VOUT_COMMAND = 1.00 VFactory default, at VOUT_COMMAND = 1.00 V0.4
OUTPUT VOLTAGE TRIMMING
VOUTRESDefault resolution of VOUT_COMMAND, trim and margin, VOUT_SCALE_LOOP = 0.51.901.952.00mV
Programmable range(1)2–122 –5V
VOUT_TRAN_RTOutput voltage transition rateFactory default setting1mV/µs
Programmable range(1)0.06315.933
Accuracy –10%10%
VOUT_SCL_LPFeedback loop scaling factor(1)Factory default setting0.5
Programmable range, four discrete settings0.1251
VOUT_CMDOutput voltage programmable valuesFactory default setting0.8V
Programmable rangeVOUT_SCALE_LOOP = 1 (5)0.250.75V
VOUT_SCALE_LOOP = 0.50.251.5
VOUT_SCALE_LOOP = 0.25(5)0.253
VOUT_SCALE_LOOP = 0.125(5)0.253.6
TEMPERATURE SENSE AND THERMAL SHUTDOWN
TSDBandgap thermal shutdown temperature(1)150170°C
THYSTBandgap thermal shutdown hysteresis(1)25
OT_FLT_LMTInternal overtemperature fault limit(1)Factory default setting150
Programmable range0160
Resolution1
OT_WRN_LMTInternal overtemperature warning limit(1)Factory default setting125
Programmable range0160
Resolution1
TOT(hys)Internal overtemperature fault, warning hysteresis(1)Factory default setting25
MEASUREMENT SYSTEM
MVOUT(rng)Output voltage measurement range(1)06V
MVOUT(acc)Output voltage measurement accuracy250 mV < VOUT < 6 V –2%2%
MVOUT(lsb)Output voltage measurement bit resolution(1)244µV
MIOUT(rng)Output current measurement range(1) –1060A
MIOUT(acc)Output current measurement accuracy(5)IOUT ≤ 10 A, TJ = 25°C –1.801.8A
MIOUT(acc)Output current measurement accuracy(5)IOUT = 20 A, -40°C ≤ TJ ≤ 150°C –303A
MIOUT(acc)Output current measurement accuracy(5)IOUT = 35 A, -40°C ≤ TJ ≤ 150°C –404A
MIOUT(acc)Output current measurement accuracy(5)IOUT = 20 A, 0°C ≤ TJ ≤ 85°C –2.502.5A
MIOUT(acc)Output current measurement accuracy(5)IOUT = 35 A, 0°C ≤ TJ ≤ 85°C –303A
MIOUT(lsb)Output current measurement bit resolution(1)2–6A
MPVIN(rng)Input voltage measurement range(1)020V
MPVIN(acc)Input voltage measurement accuracy4 V< PVIN < 20 V –3%3%
MPVIN(lsb)Input voltage measurement bit resolution(1)2–6V
MTSNS(acc)Internal temperature sense accuracy(5)–40°C ≤ TJ ≤ 150°C –33°C
MTSNS(lsb)Internal temperature sense bit resolution(1)0.25
PMBUS INTERFACE + BCX
VIH(PMBUS)High-level input voltage on PMB_CLK, PMB_DATA, BCX_CLK, BCX_DAT1.35V
VIL(PMBUS)Low-level input voltage on PMB_CLK, PMB_DATA, BCX_CLK, BCX_DAT0.8
IlH(PMBUS)Input high level current into PMB_CLK, PMB_DATA –1010μA
IIL(PMBUS)Input low level current into PMB_CLK, PMB_DATA –1010μA
VOL(PMBUS)Output low level voltage on PMB_DATA, SMB_ALRT, BCX_DATVAVIN > 4.5 V, input current to PMB_DATA, SMB_ALRT, BCX_DAT = 20 mA0.4V
IOH(PMBUS)Output high level open-drain leakage current into PMB_DATA, SMB_ALRTVoltage on PMB_DATA, SMB_ALRT = 5.5 V10μA
IOL(PMBUS)Output low level open-drain sinking current on PMB_DATA, SMB_ALRT, BCX_DATVoltage on PMB_DATA, SMB_ALRT, BCX_DAT = 0.4 V20mA
fPMBUS_CLKPMBus operating frequency rangeGOSNS = AGND101000kHz
CPMBUSPMBUS_CLK and PMBUS_DATA pin input capacitance(1)Vpin = 0.1 V to 1.35 V5pF
NWR_NVMNumber of NVM writable cycles(1) –40°C to 150°C1000cycle
tCLK_STCH(max)Maximum allowable clock stretch(1)6ms
Specified by design. Not production tested.
The parameter covers 2.95 V to 18 V of AVIN.
The setting of TON_RISE and TOFF_FALL of 0 ms means the unit to bring its output voltage to the programmed regulation value of down to 0 as quickly as possible, which results in an effective TON_RISE and TOFF_FALL time of 0.5 ms (fastest time supported).
The setting of TON_MAX_FAULT_LIMIT and TOFF_MAX_WARN_LIMIT of 0 means disabling TON_MAX_FAULT and TOFF_MAX_WARN response and reporting completely.
Not production tested.