ZHCSQG1H
November 2009 – May 2022
LMP8645
,
LMP8645HV
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
2.7-V Electrical Characteristics
6.6
5-V Electrical Characteristics
6.7
12-V Electrical Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.1.1
Theory of Operation
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Driving ADC
7.3.2
Applying Input Voltage With No Supply Voltage
7.4
Device Functional Modes
7.4.1
Selection of the Gain Resistor
7.4.2
Gain Range Limitations
7.4.2.1
Range 1: VCM is –2 V to 1.8 V
7.4.2.2
Range 2: VCM is 1.8 V to VS
7.4.2.3
Range 3: VCM is greater than VS
7.4.3
Selection of Sense Resistor
7.4.3.1
Resistor Power Rating and Thermal Issues
7.4.3.2
Using PCB Trace as a Sense Resistor
7.4.4
Sense Line Inputs
7.4.4.1
Effects of Series Resistance on Sense Lines
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Typical Current Monitor Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
High Brightness LED Driver
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DDC|6
MPDS124I
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsqg1h_oa
zhcsqg1h_pm
1
特性
典型值,T
A
= 25°C
高共模电压范围
LMP8645 –2V 至 42V
LMP8645HV –2V 至 76V
电源电压范围:2.7V 至 12V
可通过单个电阻器配置增益
最大可变增益精度(使用外部电阻器)为 2%
跨导:200μA/V
低失调电压 1mV
输入偏置 12μA
PSRR 90dB
CMRR 95dB
温度范围:-40°C 至 125°C
6 引脚 SOT 封装