JAJSN20 September   2021 TPS25854-Q1 , TPS25855-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 概要 (続き)
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Switching Characteristics
    8. 8.8 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1  Power Down or Undervoltage Lockout
      2. 10.3.2  Input Overvoltage Protection (OVP) - Continuously Monitored
      3. 10.3.3  Buck Converter
      4. 10.3.4  FREQ/SYNC
      5. 10.3.5  Bootstrap Voltage (BOOT)
      6. 10.3.6  Minimum ON-time, Minimum OFF-time
      7. 10.3.7  Internal Compensation
      8. 10.3.8  Current Limit and Short Circuit Protection
        1. 10.3.8.1 USB Switch Programmable Current Limit (ILIM)
        2. 10.3.8.2 Cycle-by-Cycle Buck Current Limit
        3. 10.3.8.3 OUT Current Limit
      9. 10.3.9  Cable Compensation
      10. 10.3.10 Thermal Management With Temperature Sensing (TS) and OTSD
      11. 10.3.11 Thermal Shutdown
      12. 10.3.12 FAULT Indication
      13. 10.3.13 USB Specification Overview
      14. 10.3.14 USB Type-C® Basics
        1. 10.3.14.1 Configuration Channel
        2. 10.3.14.2 Detecting a Connection
        3. 10.3.14.3 Plug Polarity Detection
      15. 10.3.15 USB Port Operating Modes
        1. 10.3.15.1 USB Type-C® Mode
        2. 10.3.15.2 Dedicated Charging Port (DCP) Mode
          1. 10.3.15.2.1 DCP BC1.2 and YD/T 1591-2009
          2. 10.3.15.2.2 DCP Divider-Charging Scheme
          3. 10.3.15.2.3 DCP 1.2-V Charging Scheme
        3. 10.3.15.3 DCP Auto Mode
    4. 10.4 Device Functional Modes
      1. 10.4.1 Shutdown Mode
      2. 10.4.2 Active Mode
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Applications
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Output Voltage Setting
        2. 11.2.2.2 Switching Frequency
        3. 11.2.2.3 Inductor Selection
        4. 11.2.2.4 Output Capacitor Selection
        5. 11.2.2.5 Input Capacitor Selection
        6. 11.2.2.6 Bootstrap Capacitor Selection
        7. 11.2.2.7 Undervoltage Lockout Set-Point
        8. 11.2.2.8 Cable Compensation Set-Point
        9. 11.2.2.9 FAULT, POL, and THERM_WARN Resistor Selection
      3. 11.2.3 Application Curves
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
    3. 13.3 Ground Plane and Thermal Considerations
  14. 14Device and Documentation Support
    1. 14.1 Receiving Notification of Documentation Updates
    2. 14.2 サポート・リソース
    3. 14.3 Trademarks
    4. 14.4 Electrostatic Discharge Caution
    5. 14.5 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

11.2.3 Application Curves

Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 2100 kHz, L = 2.2 µH, CSENSE = 66 µF, CBUS = 1 µF, ILIM = GND, TA = 25 °C.
Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 2100 kHz, L = 2.2 µH, CSENSE = 66 µF, CBUS = 1 µF, ILIM = GND, TA = 25 °C.
fSW = 400 kHz L = 10 uH
Figure 11-2 Buck Only Efficiency. Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 2100 kHz, L = 2.2 µH, CSENSE = 66 µF, CBUS = 1 µF, ILIM = GND, TA = 25 °C.
GUID-92DB1483-A8C1-4735-9FC9-D0911C9320A9-low.png
IBUS = 3A fSW = 2100 kHz L = 2.2 uH
Figure 11-4 2.1-MHz EMI Results (Without CM Filter)
fSW = 2100 kHz
Figure 11-6 Load Regulation
GUID-20210929-SS0I-PK7K-PTRH-F4VP6DBTFWF5-low.png
IBUS = 0 A to 3 A fSW = 2100 kHZ
Figure 11-8 Load Transient Without Cable Compensation
GUID-20210929-SS0I-9SKX-6ZPH-251CCTSTHFML-low.png
IBUS = 0 A to 3 A fSW = 2100 kHZ
Figure 11-10 Load Transient With Cable Compensation
Figure 11-12 Dropout Characteristic
GUID-20210929-SS0I-BBXG-RDDV-N9NQVNV6BP41-low.png
IBUS = 0.1 A fSW = 2100 kHZ
Figure 11-14 100-mA Output Ripple
GUID-20210929-SS0I-ZHWN-ZSSP-38KHC426RZSW-low.png
VIN = 0 V to 13.5 V CC1 = Rd IBUS = 3 A
Figure 11-16 Startup Relate to VIN
GUID-20210929-SS0I-DGR9-XJCM-F5HWQ0NNR59B-low.png
EN = 0 V to 5 V CC1 = Rd IBUS = 3 A
Figure 11-18 Startup Relate to EN
GUID-20210929-SS0I-BPTZ-MBKL-8JWXFQBMSMHR-low.png
CC1 = Open to Rd CC2 = Open IBUS = 3 A
Figure 11-20 Rd Assert
GUID-20210929-SS0I-BN2C-TPCQ-1NVVCZPJFTSG-low.png
EN to High BUS = GND
Figure 11-22 Enable Into Short
GUID-20210929-SS0I-QNDG-DG8J-HD1N5GRFB3CZ-low.pngFigure 11-24 VBUS Hot Short to GND
GUID-20210929-SS0I-CL3M-5PCT-MZKWRXZZ9X2H-low.png
CC1 = Rd OUT = 5.1 Ω BUS NO LOAD
Figure 11-26 OUT short to 5.1-Ω Load
GUID-20210929-SS0I-D3KJ-WJQV-5RRPSWGZQHH4-low.png
VTS = 0 V to 2.6 V CC1 = Rd CC2 = OPEN
Figure 11-28 Thermal Sensing - NTC Temperature WARM Behavior
fSW = 2100 kHz L = 2.2 uH
Figure 11-3 Buck Only Efficiency
GUID-653F78B0-CC49-4383-BFED-37BFEFE120E1-low.png
IBUS = 3A fSW = 400 kHz L = 10 uH
Figure 11-5 400-KHz EMI Results (Without CM Filter)
fSW = 2100 kHz
Figure 11-7 Line Regulation
GUID-DC8F9275-407E-4865-89F8-7AE72B486F32-low.png
IBUS = 0.75 A to 2.25 A fSW = 400 kHZ
Figure 11-9 Load Transient Without Cable Compensation
GUID-20210929-SS0I-WTBG-34CM-92WMBJKPKBK7-low.png
IBUS = 0.75 A to 2.25 A fSW = 400 kHZ
Figure 11-11 Load Transient With Cable Compensation
GUID-742A58EC-1C3A-460C-8053-ACE25A71B3DE-low.png
IBUS = 3 A fSW = 2100 kHZ
Figure 11-13 6-A Output Ripple
GUID-20210929-SS0I-M1CG-VHCG-J2DZBKX404VZ-low.png
IBUS = 0 A fSW = 2100 kHZ
Figure 11-15 No Load Output Ripple
GUID-20210929-SS0I-CPBV-SXRS-J0KJXMGD2ZX4-low.png
VIN = 13.5 V to 0 V CC1 = Rd IBUS = 3 A
Figure 11-17 Shutdown Relate to VIN
GUID-20210929-SS0I-SFN8-X6TV-1CVNWH1NRLN6-low.png
EN = 5 V to 0 V CC1 = Rd IBUS = 3 A
Figure 11-19 Shutdown Relate to EN
GUID-20210929-SS0I-BHPG-K0JT-MV1PC8JLNBT8-low.png
CC1 = Rd to Open CC2 = Open IBUS = 3 A
Figure 11-21 Rd Desert
GUID-20210929-SS0I-HSSH-KN81-43LQD9LKJGHN-low.png
EN is High BUS removed from GND
Figure 11-23 Short Circuit Recovery
GUID-20210929-SS0I-G2WK-NQ4Q-QMNNQTWDFPVF-low.png
CC1 = Rd CC2 = Ra
Figure 11-25 CC2 Hot Short to GND
GUID-20210929-SS0I-J3RG-LGKG-1PBFL8RJJVVX-low.png
CC1 = Rd OUT = GND BUS NO LOAD
Figure 11-27 OUT Hot Short to GND
GUID-20210929-SS0I-F1WL-PF9N-JZKDQLPHCWKT-low.png
VTS = 0 V to 4 V CC1 = Rd CC2 = OPEN
Figure 11-29 Thermal Sensing - NTC Temperature HOT Behavior