ZHCS155C March   2011  – November 2023 TPS40170

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Handling Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  LDO Linear Regulators and Enable
      2. 6.3.2  Input Undervoltage Lockout (UVLO)
        1. 6.3.2.1 Equations for Programming the Input UVLO:
      3. 6.3.3  Oscillator and Voltage Feed-Forward
        1. 6.3.3.1 Calculating the Timing Resistance (RRT)
      4. 6.3.4  Overcurrent Protection and Short-Circuit Protection (OCP and SCP)
      5. 6.3.5  Soft-Start and Fault-Logic
        1. 6.3.5.1 Soft Start During Overcurrent Fault
        2. 6.3.5.2 Equations for Soft Start and Restart Time
      6. 6.3.6  Overtemperature Fault
      7. 6.3.7  Tracking
      8. 6.3.8  Adaptive Drivers
      9. 6.3.9  Start-Up into Pre-Biased Output
      10. 6.3.10 Power Good (PGOOD)
      11. 6.3.11 PGND and AGND
    4. 6.4 Device Functional Modes
      1. 6.4.1 Frequency Synchronization
      2. 6.4.2 Operation Near Minimum VIN (VVIN ≤ 4.5 V)
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Bootstrap Resistor
      2. 7.1.2 SW Node Snubber Capacitor
      3. 7.1.3 Input Resistor
      4. 7.1.4 LDRV Gate Capacitor
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1  Custom Design with WEBENCH® Tools
        2. 7.2.2.2  List of Materials
        3. 7.2.2.3  Select a Switching Frequency
        4. 7.2.2.4  Inductor Selection (L1)
        5. 7.2.2.5  Output Capacitor Selection (C9)
        6. 7.2.2.6  Peak Current Rating of Inductor
        7. 7.2.2.7  Input Capacitor Selection (C1, C6)
        8. 7.2.2.8  MOSFET Switch Selection (Q1, Q2)
        9. 7.2.2.9  Timing Resistor (R7)
        10. 7.2.2.10 UVLO Programming Resistors (R2, R6)
        11. 7.2.2.11 Boot-Strap Capacitor (C7)
        12. 7.2.2.12 VIN Bypass Capacitor (C18)
        13. 7.2.2.13 VBP Bypass Capacitor (C19)
        14. 7.2.2.14 VDD Bypass Capacitor (C16)
        15. 7.2.2.15 SS Timing Capacitor (C15)
        16. 7.2.2.16 ILIM Resistor (R9, C17)
        17. 7.2.2.17 SCP Multiplier Selection (R5)
        18. 7.2.2.18 Feedback Divider (R10, R11)
        19. 7.2.2.19 Compensation: (R4, R13, C13, C14, C21)
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 第三方产品免责声明
      2. 8.1.2 Development Support
        1. 8.1.2.1 Custom Design with WEBENCH® Tools
      3. 8.1.3 Related Devices
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 接收文档更新通知
    4. 8.4 支持资源
    5. 8.5 Trademarks
    6. 8.6 静电放电警告
    7. 8.7 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
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订购信息

7.2.2.2 List of Materials

Table 7-2 Design Example List of Materials
REFERENCE DESIGNATOR QTY VALUE DESCRIPTION SIZE PART NUMBER MANUF
C1 4 2.2 µF Capacitor, Ceramic, 100 V, X7R, 15% 1210 Std Std
C6 1 120 µF Capacitor, Aluminum, 63 V, 20%, KZE Series 0.315" KZE63VB121M10X16LL Chemi-con
C7 1 0.1 µF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
C9 2 ea 22 µF
10 µF		 Capacitor, Ceramic, 16 V, X7R, 15% 1210 Std Std
C13 1 8200 pF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
C14 1 220 pF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
C15 1 47 nF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
C16 1 1 µF Capacitor, 1 6V, X7R, 15% 603 Std Std
C17 1 1000 pF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
C18 1 1 µF Capacitor, Ceramic, 100 V, X7R, 15% 1206 Std Std
C19 1 4.7 µF Capacitor, Ceramic, 16 V, X5R, 15% 805 Std Std
C21 1 1500 pF Capacitor, Ceramic, 50 V, X7R, 15% 603 Std Std
L1 1 8.2 µH Inductor, SMT, 10 A, 16 mΩ 0.51"2 IHLP5050FDER8R2M01 Vishay
Q1 1 MOSFET, N-channel, 60 V, 50 A, 11 mΩ BSC110N06NS3G Infineon
Q2 1 MOSFET, N-channel, 60 V, 50 A, 7.6 mΩ BSC076N06NS3G Infineon
R10 1 2.74 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R4 1 3.83 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R5 1 10.0 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R9 1 12.1 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R11 1 20.0 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R6 1 22.1 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R7 1 31.6 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R2 1 200 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
R13 1 511 kΩ Resistor, Chip, 1/16W, 1% 603 Std R603
U1 IC, 4.5 V - 60 V wide input sync. PWM buck controller TPS40170RGY Texas Instruments