ZHCSMM1C
April 2023 – February 2024
TPS274C65
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Device Comparison Table
5
Pin Configuration and Functions
7
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
SPI Timing Requirements
6.8
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Pin Diagrams
8.3.2
SPI Mode Operation
8.3.2.1
Diagnostic Bit Behavior
8.3.3
Programmable Current Limit
8.3.3.1
Inrush Current Handling
8.3.4
DO_EN Feature
8.3.5
Protection Mechanisms
8.3.5.1
Overcurrent Protection
8.3.5.2
Short Circuit Protection
8.3.5.2.1
VS During Short-to-Ground
8.3.5.3
Inductive-Load Switching-Off Clamp
8.3.5.4
Inductive Load Demagnetization
8.3.5.5
Thermal Shutdown
8.3.5.6
Undervoltage protection on VS
8.3.5.7
Undervoltage Lockout on Low Voltage Supply (VDD_UVLO)
8.3.5.8
Power-Up and Power-Down Behavior
8.3.5.9
Reverse Current Blocking
8.3.6
Diagnostic Mechanisms
8.3.6.1
Current Sense
8.3.6.1.1
RSNS Value
8.3.6.1.1.1
SNS Output Filter
8.3.6.2
Fault Indication
8.3.6.2.1
Current Limit Behavior
8.3.6.3
Short-to-Battery and Open-Load Detection
8.3.6.4
On-State Wire-Break Detection
8.3.6.5
Off State Wire-Break Detection
8.3.6.6
ADC
8.3.7
LED Driver
8.4
Device Functional Modes
8.4.1
OFF/POR
8.4.2
INIT
8.4.3
Active
8.5
TPS274C65BS Available Registers List
8.6
TPS274C65 Registers
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
IEC 61000-4-5 Surge
9.2.2.2
Loss of GND
9.2.2.3
Paralleling Channels
9.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
接收文档更新通知
10.2
支持资源
10.3
Trademarks
10.4
静电放电警告
10.5
术语表
11
Revision History
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RHA|40
MPQF135D
散热焊盘机械数据 (封装 | 引脚)
RHA|40
QFND047R
订购信息
zhcsmm1c_oa
zhcsmm1c_pm
10.4
静电放电警告
静电放电 (ESD) 会损坏这个集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理和安装程序,可能会损坏集成电路。
ESD 的损坏小至导致微小的性能降级,大至整个器件故障。精密的集成电路可能更容易受到损坏,这是因为非常细微的参数更改都可能会导致器件与其发布的规格不相符。