ZHCSLY9A
October 2020 – December 2020
LM7310
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
Electrical Characteristics
6.6
Timing Requirements
6.7
Switching Characteristics
14
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Input Reverse Polarity Protection
7.3.2
Undervoltage Protection (UVLO & UVP)
7.3.3
Overvoltage Lockout (OVLO)
7.3.4
Inrush Current control and Fast-trip
7.3.4.1
Slew Rate (dVdt) and Inrush Current Control
7.3.4.2
Fast-Trip During Steady State
7.3.5
Analog Load Current Monitor Output
7.3.6
Reverse Current Protection
7.3.7
Overtemperature Protection (OTP)
7.3.8
Fault Response
7.3.9
Power Good Indication (PG)
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Single Device, Self-Controlled
8.2.1
Typical Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Setting Undervoltage and Overvoltage Thresholds
8.2.1.2.2
Setting Output Voltage Rise Time (tR)
8.2.1.2.3
Setting Power Good Assertion Threshold
8.2.1.2.4
Setting Analog Current Monitor Voltage (IMON) Range
8.2.1.3
Application Curves
8.3
Active ORing
8.4
Priority Power MUXing
8.5
USB PD Port Protection
8.6
Parallel Operation
9
Power Supply Recommendations
9.1
Transient Protection
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
接收文档更新通知
11.3
支持资源
11.4
商标
11.5
静电放电警告
11.6
术语表
12
Mechanical, Packaging, and Orderable Information
1
特性
宽工作输入电压范围:2.7V 至 23V
绝对最大值为 28V
可耐受高达 -15 V 的负电压
具有低导通电阻的集成式背对背 FET:R
ON
= 28.4mΩ(典型值)
具有真反向电流阻断功能的理想二极管运行状态
快速过压保护
响应时间为 1.2μs(典型值)
可调节过压锁定 (OVLO)
稳态期间针对瞬态过流实现快速跳变响应
响应时间为 500ns(典型值)
故障后锁存
模拟负载电流监测器输出 (IMON)
电流范围:0.5A 至 5.5A
精度:±15%(最大值)(I
OUT
≥ 1A)
具有可调节欠压锁定阈值 (UVLO) 的高电平有效使能输入
可调节的输出压摆率控制 (dVdt)
过温保护
具有可调节阈值 (PGTH) 的电源正常状态指示 (PG)
小尺寸:QFN 2mm x 2mm,0.45mm 间距
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