ZHCSG68F MARCH   2017  – JANUARY 2019 TPSM846C23

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化电路原理图
      2.      效率与输出电流间的关系
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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 Switching Characteristics
    7. 6.7 Programmable Characteristics
    8. 6.8 Typical Characteristics (VIN = 12 V)
    9. 6.9 Typical Characteristics (VIN = 5 V)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  PMBus
        1. 7.3.1.1 PMBus General Description
        2. 7.3.1.2 PMBus Address
        3. 7.3.1.3 PMBus Connections
        4. 7.3.1.4 Supported PMBus Commands
      2. 7.3.2  Minimum Capacitance Requirements
      3. 7.3.3  Setting the Compensation Network
      4. 7.3.4  Transient Response
      5. 7.3.5  Setting the Output Voltage via PMBus
      6. 7.3.6  Setting the Output Voltage Without PMBus
      7. 7.3.7  Differential Remote Sense
      8. 7.3.8  Voltage Reference
      9. 7.3.9  Switching Frequency and Synchronization
        1. 7.3.9.1 Setting the Switching Frequency
        2. 7.3.9.2 Synchronization
          1. 7.3.9.2.1 Stand-Alone Device
          2. 7.3.9.2.2 Paralleled Devices
      10. 7.3.10 Input Undervoltage Lockout (UVLO)
      11. 7.3.11 Turnon and Turnoff Delay and Sequencing
      12. 7.3.12 Soft-Start Time and TON_RISE Command
      13. 7.3.13 Soft-Stop Time and TOFF_FALL Command
      14. 7.3.14 Prebiased Output Start-Up
      15. 7.3.15 Power Good (PGOOD) Indicator
      16. 7.3.16 Linear Regulators BP3 and BP6
      17. 7.3.17 VREF_TRIM
      18. 7.3.18 MARGIN
      19. 7.3.19 Parallel Application
      20. 7.3.20 Parallel Operation
      21. 7.3.21 Telemetry
        1. 7.3.21.1 Output Current Telemetry
        2. 7.3.21.2 Output Voltage Telemetry
        3. 7.3.21.3 Junction Temperature Telemetry
      22. 7.3.22 Overtemperature Protection
      23. 7.3.23 Overcurrent Protection
      24. 7.3.24 Output Overvoltage and Undervoltage Protection
      25. 7.3.25 Fault Protection Responses
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous Conduction Mode
      2. 7.4.2 Operation With CNTL Signal Control
      3. 7.4.3 Operation With OPERATION Control
      4. 7.4.4 Operation With CNTL and OPERATION Control
    5. 7.5 Register Maps
      1. 7.5.1  OPERATION (01h)
        1. 7.5.1.1 On Bit
        2. 7.5.1.2 Off Bit
        3. 7.5.1.3 Margin Bit
      2. 7.5.2  ON_OFF_CONFIG (02h)
        1. 7.5.2.1 pu Bit
        2. 7.5.2.2 cmd Bit
        3. 7.5.2.3 cpr Bit
        4. 7.5.2.4 pol Bit
        5. 7.5.2.5 cpa Bit
      3. 7.5.3  CLEAR_FAULTS (03h)
      4. 7.5.4  WRITE_PROTECT (10h)
        1. 7.5.4.1 bit5
        2. 7.5.4.2 bit6
        3. 7.5.4.3 bit7
      5. 7.5.5  STORE_DEFAULT_ALL (11h)
      6. 7.5.6  RESTORE_DEFAULT_ALL (12h)
      7. 7.5.7  STORE_USER_ALL (15h)
      8. 7.5.8  RESTORE_USER_ALL (16h)
      9. 7.5.9  CAPABILITY (19h)
      10. 7.5.10 SMBALERT_MASK (1Bh)
      11. 7.5.11 VOUT_MODE (20h)
        1. 7.5.11.1 Mode Bit
        2. 7.5.11.2 Exponent Bit
      12. 7.5.12 VOUT_COMMAND (21h)
        1. 7.5.12.1 Exponent
        2. 7.5.12.2 Mantissa
      13. 7.5.13 VOUT_MAX (24h)
        1. 7.5.13.1 Exponent
        2. 7.5.13.2 Mantissa
      14. 7.5.14 VOUT_TRANSITION_RATE (27h)
        1. 7.5.14.1 Exponent
        2. 7.5.14.2 Mantissa
      15. 7.5.15 VOUT_SCALE_LOOP (29h)
        1. 7.5.15.1 Exponent
        2. 7.5.15.2 Mantissa
      16. 7.5.16 VOUT_MIN (2Bh)
        1. 7.5.16.1 Exponent
        2. 7.5.16.2 Mantissa
      17. 7.5.17 VIN_ON (35h)
        1. 7.5.17.1 Exponent
        2. 7.5.17.2 Mantissa
      18. 7.5.18 VIN_OFF (36h)
        1. 7.5.18.1 Exponent
        2. 7.5.18.2 Mantissa
      19. 7.5.19 IOUT_CAL_OFFSET (39h)
        1. 7.5.19.1 Exponent
        2. 7.5.19.2 Mantissa
      20. 7.5.20 VOUT_OV_FAULT_RESPONSE (41h)
        1. 7.5.20.1 RSP[1] Bit
        2. 7.5.20.2 RS[2:0] Bits
        3. 7.5.20.3 TD[2:0] Bits
      21. 7.5.21 VOUT_UV_FAULT_RESPONSE (45h)
        1. 7.5.21.1 RSP[1] Bit
        2. 7.5.21.2 RS[2:0] Bits
        3. 7.5.21.3 TD[2:0] Bits
      22. 7.5.22 IOUT_OC_FAULT_LIMIT (46h)
        1. 7.5.22.1 Exponent
        2. 7.5.22.2 Mantissa
      23. 7.5.23 IOUT_OC_FAULT_RESPONSE (47h)
        1. 7.5.23.1 RSP[1:0] Bits
        2. 7.5.23.2 RS[2:0] Bits
        3. 7.5.23.3 TD[2:0] Bits
      24. 7.5.24 IOUT_OC_WARN_LIMIT (4Ah)
        1. 7.5.24.1 Exponent
        2. 7.5.24.2 Mantissa
      25. 7.5.25 OT_FAULT_LIMIT (4Fh)
        1. 7.5.25.1 Exponent
        2. 7.5.25.2 Mantissa
      26. 7.5.26 OT_FAULT_RESPONSE (50h)
        1. 7.5.26.1 RSP[1] Bit
        2. 7.5.26.2 RS[2:0] Bits
        3. 7.5.26.3 TD[2:0] Bits
      27. 7.5.27 OT_WARN_LIMIT (51h)
        1. 7.5.27.1 Exponent
        2. 7.5.27.2 Mantissa
      28. 7.5.28 TON_DELAY (60h)
        1. 7.5.28.1 Exponent
        2. 7.5.28.2 Mantissa
      29. 7.5.29 TON_RISE (61h)
        1. 7.5.29.1 Exponent
        2. 7.5.29.2 Mantissa
      30. 7.5.30 TON_MAX_FAULT_LIMIT (62h)
        1. 7.5.30.1 Exponent
        2. 7.5.30.2 Mantissa
      31. 7.5.31 TON_MAX_FAULT_RESPONSE (63h)
        1. 7.5.31.1 RSP[1] Bit
        2. 7.5.31.2 RS[2:0] Bits
        3. 7.5.31.3 TD[2:0] Bits
      32. 7.5.32 TOFF_DELAY (64h)
        1. 7.5.32.1 Exponent
        2. 7.5.32.2 Mantissa
      33. 7.5.33 TOFF_FALL (65h)
        1. 7.5.33.1 Exponent
        2. 7.5.33.2 Mantissa
      34. 7.5.34 STATUS_BYTE (78h)
      35. 7.5.35 STATUS_WORD (79h)
      36. 7.5.36 STATUS_VOUT (7Ah)
      37. 7.5.37 STATUS_IOUT (7Bh)
      38. 7.5.38 STATUS_INPUT (7Ch)
      39. 7.5.39 STATUS_TEMPERATURE (7Dh)
      40. 7.5.40 STATUS_CML (7Eh)
      41. 7.5.41 STATUS_MFR_SPECIFIC (80h)
      42. 7.5.42 READ_VOUT (8Bh)
        1. 7.5.42.1 Exponent
        2. 7.5.42.2 Mantissa
      43. 7.5.43 READ_IOUT (8Ch)
        1. 7.5.43.1 Exponent
        2. 7.5.43.2 Mantissa
      44. 7.5.44 READ_TEMPERATURE_1 (8Dh)
        1. 7.5.44.1 Exponent
        2. 7.5.44.2 Mantissa
      45. 7.5.45 PMBUS_REVISION (98h)
      46. 7.5.46 IC_DEVICE_ID (ADh)
      47. 7.5.47 IC_DEVICE_REV (AEh)
      48. 7.5.48 MFR_SPECIFIC_00 (D0h)
      49. 7.5.49 VREF_TRIM (MFR_SPECIFIC_04) (D4h)
      50. 7.5.50 STEP_VREF_MARGIN_HIGH (MFR_SPECIFIC_05) (D5h)
      51. 7.5.51 STEP_VREF_MARGIN_LOW (MFR_SPECIFIC_06) (D6h)
      52. 7.5.52 PCT_OV_UV_WRN_FLT_LIMITS (MFR_SPECIFIC_07) (D7h)
      53. 7.5.53 OPTIONS (MFR_SPECIFIC_21) (E5h)
        1. 7.5.53.1  DIS_NEGILIM Bit
        2. 7.5.53.2  EN_RESET_B Bit
        3. 7.5.53.3  EN_ADC_CNTL Bit
        4. 7.5.53.4  VSM Bit
        5. 7.5.53.5  DLO Bit
        6. 7.5.53.6  AVG_PROG[1:0] Bits
        7. 7.5.53.7  EN_AUTO_ARA Bit
        8. 7.5.53.8  READ_VOUT_RANGE[1:0] Bits
        9. 7.5.53.9  RST_VOUT_oSD Bit
        10. 7.5.53.10 RSMLO_VAL Bit
        11. 7.5.53.11 RSMHI_VAL Bit
      54. 7.5.54 MISC_CONFIG_OPTIONS (MFR_SPECIFIC_32) (F0h)
        1. 7.5.54.1 OV_RESP_SEL Bit
        2. 7.5.54.2 HSOC_USER_TRIM[1:0] Bits
        3. 7.5.54.3 EN_AVS_USER Bit
        4. 7.5.54.4 FORCE_SYNC_OUT Bit
        5. 7.5.54.5 FORCE_SYNC_IN Bit
        6. 7.5.54.6 SYNC_FAULT_DIS Bit
  8. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Design Requirements
      2. 8.1.2 Detailed Design Procedure
        1. 8.1.2.1 Custom Design With WEBENCH® Tools
        2. 8.1.2.2 Setting the Output Voltage
        3. 8.1.2.3 Input and Output Capacitance
        4. 8.1.2.4 Selecting the Compensation Components
        5. 8.1.2.5 Setting the Switching Frequency
        6. 8.1.2.6 Power Good (PGOOD)
        7. 8.1.2.7 ON/OFF Control (CNTL)
      3. 8.1.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Package Specifications
    4. 10.4 EMI
    5. 10.5 Mounting and Thermal Profile Recommendation
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 使用 WEBENCH® 工具创建定制设计
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12机械、封装和可订购信息
    1. 12.1 Tape and Reel Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

Over –40°C to 105°C free-air temperature range, VIN = 12 V, VOUT = 1.2 V, IOUT = IOUT(max), ƒSW = 500 kHz, CIN1 = 4 × 22 µF, 25 V, 1210 ceramic, CIN2 = 2 × 330 µF electrolytic bulk, COUT1 = 4 × 47 µF, 6.3 V, 1210 ceramic, COUT2 = 2 × 470 µF, 6.3-V polymer bulk (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT VOLTAGE (VIN)
VIN Input voltage Over IOUT range 4.5 15 V
IVIN Input operating current Non-switching supply current 7.7 12 mA
OUTPUT VOLTAGE (VOUT)
VOUT Factory default setting RSET = Not loaded, VOUT_SCALE_LOOP = 1 500 mV
RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 1 V
VOUT programmable range(1)(2) RSET = Not loaded, VOUT_SCALE_LOOP = 1.0 0.35 1.65 V
RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 0.7 2(7) V
VOUT programmable step size RSET = Not loaded, VOUT_SCALE_LOOP = 1 1.953 mV
RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 3.906 mV
Setpoint voltage tolerance RSET = Not loaded, TJ = 25°C, IOUT = 0 A –1% 1%
RSET = 10 kΩ, 1%, TJ = 25°C, IOUT = 0 A(3) –1.5% 1.5%
Temperature variation 0°C < TJ < 85°C, IOUT = 0 A(2) –0.5% 0.5%
–40°C < TJ < 125°C, IOUT = 0 A(2) –1% 1%
Line regulation 4.5 V < VIN < 15 V, IOUT = 0 A ±0.05%
Load regulation Over IOUT range, using remote sense ±0.2%
Output voltage ripple 20-MHz bandwidth 13 mV
OUTPUT CURRENT
IOUT Output current Natural Convection. See SOA graph for derating. 0 35 A
IOCF Overcurrent fault threshold Factory default setting 42 A
Programmable range 5 52
IOCWF Overcurrent warning threshold Factory default setting 37 A
Programmable range 4 50
IOCF(acc) Overcurrent fault accuracy IOUT ≥ 20 A –15% 15%
ISH(acc) Output current share accuracy (IOUT1 – IOUT2) ÷ ITOTAL, IOUT ≥ 20 A per module(4) –15% 15%
(IOUTx – ITOTAL) ÷ 2, IOUT < 20 A per module(4) –3% 3%
POWER GOOD (PGOOD) AND OVERVOLTAGE / UNDERVOLTAGE THRESHOLD
VPG(OL) PGOOD output low voltage VIN = 4 V, VOUT = 0 V, IPGOOD = 5 mA 0.3 V
VIN = 0 V, IPGOOD = 80 µA 0.8
VPG(rise) PGOOD threshold VOUT rising VOUT setting = 1.2 V 95 %VO
VPG(fall) PGOOD threshold VOUT falling 105 %VO
VOVWARN Overvoltage warning threshold 112 %VO
VOVFAULT Overvoltage fault threshold 117 %VO
VUVWARN Undervoltage warning threshold 88 %VO
VUVFAULT Undervoltage fault threshold 83 %VO
PERFORMANCE
Efficiency (1) VIN = 12 V, IOUT = 25 A VOUT = 0.8 V 83%
VOUT = 1.2 V 87%
VOUT = 1.8 V 90%
VIN = 5 V, IOUT = 25 A VOUT = 0.8 V 84%
VOUT = 1.2 V 88%
VOUT = 1.8 V 91%
Transient response (1) 10 A / µs load step from
25% to 75% of IOUT(max),
COUT = 1000 µF,
RC = 1 kΩ, CC = 1  nF		 VOUT over/undershoot 60 mV
Recovery time 60 µs
10 A / µs load step from
25% to 75% of IOUT(max),
COUT = 2000 µF,
RC = 665 Ω, CC = 1.5 nF		 VOUT over/undershoot 40 mV
Recovery time 60 µs
10 A / µs load step from
25% to 75% of IOUT(max),
COUT = 4000 µF,
RC = 499 Ω, CC = 2.2 nF		 VOUT over/undershoot 27 mV
Recovery time 60 µs
INTERNAL LOAD (BP6, BP3)
VBP6 BP6 regulator output voltage 7.5V ≤ VIN ≤ 15 V, switching 5.85 6.4 6.95 V
VBP6(DO) Dropout voltage (VVIN – VBP6), VIN = 4.5 V, switching 400 mV
VBP3 BP3 regulator output voltage VIN ≥ 4.5 V 3 3.2 3.4 V
CAPACITANCE
CIN External input capacitance ceramic 88 µF
non-ceramic 660 µF
COUT External output capacitance ceramic(5) 188 µF
non-ceramic(5) 940 4000(6) µF
ESR(8) 5 mΩ
(1) Output voltage is set by the VOUT_COMMAND PMBus command.
(2) Specified by design. Not production tested.
(3) The stated limit of the set-point tolerance includes the tolernace of both the internal voltage reference and the internal adjustment resistor. The overall output voltage tolerance will be affected by the tolerance of the external RSET resistor.
(4) Specified by correlation. Not production tested.
(5) The minimum required output capacitance consists of 4 × 47-µF ceramic capacitors and 2 × 470-µF, 10-mΩ ESR (5 mΩ equivalent).
(6) The proper frequency compensation network values are determined by the total amount of output capacitance. (See the Setting the Compensation Networksection.)
(7) While the PMBus permits setting the output voltage higher than 2 V, this product is not designed to be operated beyond this limit.
(8) The maximum ESR refers to the combined equivalent ESR of all non-ceramic output capacitors. For example, two 10-mΩ ESR capacitors have a combined equivalent ESR of 5 mΩ.
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