ZHCSL99F September   2019  – October 2023 TPS62860 , TPS62861

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 I2C Interface Timing Characteristics
    7. 7.7 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Power Save Mode
      2. 8.3.2  Forced PWM Operation
      3. 8.3.3  Smart Enable and Shutdown (EN)
      4. 8.3.4  Soft Start
      5. 8.3.5  Output Voltage Selection (VSEL) for TPS62860x
      6. 8.3.6  Output Voltage Selection (VSEL and I2C)
      7. 8.3.7  Forced PWM Mode During Output Voltage Change
      8. 8.3.8  Undervoltage Lockout (UVLO)
      9. 8.3.9  Power Good (PG)
      10. 8.3.10 Switch Current Limit and Short Circuit Protection
      11. 8.3.11 Thermal Shutdown
      12. 8.3.12 Output Voltage Discharge
    4. 8.4 Programming
      1. 8.4.1 Serial Interface Description
      2. 8.4.2 Standard- and Fast-Mode Protocol
      3. 8.4.3 I2C Update Sequence
      4. 8.4.4 I2C Register Reset
    5. 8.5 Register Map
      1. 8.5.1 Slave Address Byte
      2. 8.5.2 Register Address Byte
      3. 8.5.3 VOUT Register 1
      4. 8.5.4 VOUT Register 2
      5. 8.5.5 CONTROL Register
      6. 8.5.6 STATUS Register
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application, TPS628610
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 Typical Application, TPS628600, TPS62860x
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 Application Curves
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Mechanical, Packaging, and Orderable 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

9.2.2.1 Inductor Selection

The inductor value affects the peak-to-peak ripple current, the PWM-to-PFM transition point, the output voltage ripple, and the efficiency. The selected inductor has to be rated for its DC resistance and saturation current. The inductor ripple current (ΔIL) decreases with higher inductance and increases with higher VIN or VOUT and can be estimated according to Equation 1.

Equation 2 calculates the maximum inductor current under static load conditions. The saturation current of the inductor must be rated higher than the maximum inductor current, as calculated with Equation 2. This is recommended because during a heavy load transient the inductor current rises above the calculated value. A more conservative way is to select the inductor saturation current according to the high side MOSFET switch current limit, ILIMF.

Equation 1. GUID-2F7E4C1E-B5E4-43C0-87E2-F514CEB9F715-low.gif
Equation 2. GUID-B069EB39-9C6D-4D1B-8550-9E27F7D1EEE9-low.gif

where

  • f = Switching frequency
  • L = Inductor value
  • ΔIL= Peak-to-peak inductor ripple current
  • ILmax = Maximum inductor current

Table 9-2 shows a list of possible inductors.

Table 9-2 List of Possible Inductors
INDUCTANCE [µH] INDUCTOR SERIES SIZE IMPERIAL (METRIC) DIMENSIONS L × W × T SUPPLIER(1)
0.47 DFE18SAN_G0 0603 (1608) 1.6 mm × 0.8 mm × 1.0 mm maximum Murata
0.47 HTEB16080F 0603 (1608) 1.6 mm × 0.8 mm × 0.6 mm maximum Cyntec
0.47 HTET1005FE 0402 (1005) 1.0 mm × 0.5 mm × 0.65 mm maximum Cyntec
0.47 TFM160808ALC 0603 (1608) 1.6 mm × 0.8 mm × 0.8 mm maximum TDK
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |