ZHCSMM1C April   2023  – February 2024 TPS274C65

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
    1.     7
  7. 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 SPI Timing Requirements
    8. 6.8 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Pin Diagrams
      2. 8.3.2 SPI Mode Operation
        1. 8.3.2.1 Diagnostic Bit Behavior
      3. 8.3.3 Programmable Current Limit
        1. 8.3.3.1 Inrush Current Handling
      4. 8.3.4 DO_EN Feature
      5. 8.3.5 Protection Mechanisms
        1. 8.3.5.1 Overcurrent Protection
        2. 8.3.5.2 Short Circuit Protection
          1. 8.3.5.2.1 VS During Short-to-Ground
        3. 8.3.5.3 Inductive-Load Switching-Off Clamp
        4. 8.3.5.4 Inductive Load Demagnetization
        5. 8.3.5.5 Thermal Shutdown
        6. 8.3.5.6 Undervoltage protection on VS
        7. 8.3.5.7 Undervoltage Lockout on Low Voltage Supply (VDD_UVLO)
        8. 8.3.5.8 Power-Up and Power-Down Behavior
        9. 8.3.5.9 Reverse Current Blocking
      6. 8.3.6 Diagnostic Mechanisms
        1. 8.3.6.1 Current Sense
          1. 8.3.6.1.1 RSNS Value
            1. 8.3.6.1.1.1 SNS Output Filter
        2. 8.3.6.2 Fault Indication
          1. 8.3.6.2.1 Current Limit Behavior
        3. 8.3.6.3 Short-to-Battery and Open-Load Detection
        4. 8.3.6.4 On-State Wire-Break Detection
        5. 8.3.6.5 Off State Wire-Break Detection
        6. 8.3.6.6 ADC
      7. 8.3.7 LED Driver
    4. 8.4 Device Functional Modes
      1. 8.4.1 OFF/POR
      2. 8.4.2 INIT
      3. 8.4.3 Active
    5. 8.5 TPS274C65BS Available Registers List
    6. 8.6 TPS274C65 Registers
  10. 9 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 IEC 61000-4-5 Surge
        2. 9.2.2.2 Loss of GND
        3. 9.2.2.3 Paralleling Channels
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 接收文档更新通知
    2. 10.2 支持资源
    3. 10.3 Trademarks
    4. 10.4 静电放电警告
    5. 10.5 术语表
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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6.7 SPI Timing Requirements

Over operating junction temperature TJ = –40°C to 125°C and operating VVS = 2.3 to 36 V (unless otherwise noted).
MIN NOM MAX UNIT
tSPI SPI clock (SCLK) period CSDO = 30 pF;
 		 100 ns
thigh High time: SCLK logic high-time duration 45 ns
tlow Low time: SCLK logic low-time duration 45 ns
tsucs NCS setup time: Time delay between falling edge of NCS and rising edge of SCLK 45 ns
tsu_SDI SDI setup time: Setup time of SDI before the falling edge of SCLK 15 ns
th_SDI SDI hold time: Hold time of SDI before the falling edge of SCLK 30 ns
td_SDO Delay time: Time delay from rising edge of SCLK to data valid at SDO 30 ns
thcs Hold time: Time between the falling edge of SCLK and rising edge of NCS 45 ns
tdis_cs nCS disable time, nCS high to SDO high impedance 10 ns
thics SPI transfer inactive time (time between two transfers) during which NCS must remain high 500 ns
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