ZHCSIA5A
July 2018 – December 2018
INA253
PRODUCTION DATA.
1
特性
2
应用
3
说明
典型应用
4
修订历史记录
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Integrated Shunt Resistor
8.3.2
Short-Circuit Duration
8.3.3
Temperature Stability
8.3.4
Enhanced PWM Rejection Operation
8.3.5
Input Signal Bandwidth
8.4
Device Functional Modes
8.4.1
Adjusting the Output Midpoint With the Reference Pins
8.4.2
Reference Pin Connections for Unidirectional Current Measurements
8.4.3
Ground Referenced Output
8.4.4
Reference Pin Connections for Bidirectional Current Measurements
8.4.4.1
Output Set to External Reference Voltage
8.4.5
Output Set to Mid-Supply Voltage
8.4.6
Output Set to Mid-External Reference
8.4.7
Output Set Using Resistor Divide
9
Application and Implementation
9.1
Application Information
9.1.1
Input Filtering
9.2
Typical Applications
9.2.1
High-Side, High-Drive, Solenoid Current-Sense Application
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curve
9.2.2
Speaker Enhancements and Diagnostics Using Current Sense Amplifier
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.3
Application Curve
9.2.3
Current Sensing for Remote I/Os in PLC
9.2.3.1
Design Requirements
9.2.3.2
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
器件支持
12.1.1
开发支持
12.2
相关文档
12.3
接收文档更新通知
12.4
社区资源
12.5
商标
12.6
静电放电警告
12.7
术语表
13
机械、封装和可订购信息
1
特性
精密集成型分流电阻器
分流电阻器:2mΩ
分流电感:3nH
分流电阻器容差:0.1%(最大值)
±15A 持续电流(–40°C 至 +85°C)
0°C 至 125°C 温度系数:
10ppm/°C
高带宽:350kHz
增强型 PWM 抑制
出色的 CMRR
直流 CMRR 大于 120dB
90dB AC CMRR(50kHz 时)
精度:
增益:
增益误差:0.4%(最大值)
增益漂移:45ppm/°C(最大值)
偏移:
失调电流:±15mA(最大值)
温漂:125µA/°C(最大值)
宽共模范围:–4V 至 +80V
可用增益:100mV/A、200mV/A
和 400mV/A
静态电流:2.4mA(最大值)
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