ZHCSJ04D november   2018  – october 2020 SN6505A-Q1 , SN6505B-Q1 , SN6505D-Q1

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Pin Configuration and Functions
  7. 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 Timing Requirements
    7. 6.7 Typical Characteristics, SN6505A-Q1
    8. 6.8 Typical Characteristics, SN6505B-Q1 or SN6505D-Q1
  8. Parameter Measurement Information
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Push-Pull Converter
      2. 8.3.2 Core Magnetization
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up Mode
        1. 8.4.1.1 Soft-Start
      2. 8.4.2 Operating Mode
      3. 8.4.3 Shutdown-Mode
      4. 8.4.4 Spread Spectrum Clocking
      5. 8.4.5 External Clock Mode
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Drive Capability
        2. 9.2.2.2 LDO Selection
        3. 9.2.2.3 Diode Selection
        4. 9.2.2.4 Capacitor Selection
        5. 9.2.2.5 Transformer Selection
          1. 9.2.2.5.1 V-t Product Calculation
          2. 9.2.2.5.2 Turns Ratio Estimate
          3. 9.2.2.5.3 Recommended Transformers
      3. 9.2.3 Application Curves
      4. 9.2.4 System Examples
        1. 9.2.4.1 Higher Output Voltage Designs
        2. 9.2.4.2 Application Circuits
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 接收文档更新通知
    5. 12.5 支持资源
    6. 12.6 Trademarks
    7. 12.7 静电放电警告
    8. 12.8 术语表
  14. 13Mechanical, 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

Timing Requirements

MINNOMMAXUNIT
CLK
tCLKTIMERDuration after which device switches to internal clock in case of invalid external clock1025µs
OUTPUT STAGE
tBBMBreak-before-make time(SN6505A-Q1)Measured as voltage with RL = 50 Ω to VCC,
Refer to Figure 7-3
115ns
Break-before-make time (SN6505B-Q1 and SN6505D-Q1)Measured as voltage with RL = 50 Ω to VCC,
Refer to Figure 7-3
90ns
SOFT-START ENABLED (SN6505A-Q1 AND SN6505B-Q1)
tSSSoft-start time (SN6505A-Q1)10% to 90% transition time on VOUT With transformer CLOAD = 40 µF
RL = 5 Ω
12.28ms
Soft-start time (SN6505B-Q1)10% to 90% transition time on VOUT With transformer CLOAD = 40 µF
RL = 5 Ω
14.258ms
tSSdelaySoft-start time delayFrom power up to 90% transition time on VOUT With transformer CLOAD = 40 µF
RL = 5 Ω
3.58.518ms
SOFT-START DISABLED (SN6505D-Q1)
tPWRUP
Power up time
From EN=1 to full drive-current available at D1 and D2; 2.25 V ≤ VCC < 3 V75160µs
From EN=1 to full drive-current available at D1 and D2; 3 V ≤ VCC ≤ 5.5 V60100µs
tPWRDNPower down timeFrom EN=0 to output MOSFETs off (no current on D1 and D2)15µs