ZHCSHV0C
June 2017 – April 2018
TPS2595
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化原理图
TPS25953x 过压钳位响应时间
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
Switching Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Undervoltage Protection (UVP) and Undervoltage Lockout (UVLO)
8.3.2
Overvoltage Protection
8.3.2.1
Overvoltage Lockout (OVLO)
8.3.2.2
Overvoltage Clamp (OVC)
8.3.3
Inrush Current, Overcurrent and Short Circuit Protection
8.3.3.1
Slew Rate and Inrush Current Control (dVdt)
8.3.3.2
Active Current Limiting
8.3.3.3
Short Circuit Protection
8.3.4
Overtemperature Protection (OTP)
8.3.5
Fault Indication (FLT )
8.3.6
Quick Output Discharge (QOD)
8.4
Device Functional Modes
8.4.1
Enable and Fault Pin Functional Mode 1: Single Device, Self-Controlled
8.4.2
Enable and Fault Pin Functional Mode 2: Single Device, Host-Controlled
8.4.3
Enable and Fault Pin Functional Mode 2: Multiple Devices, Self-Controlled
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
Programming the Current-Limit Threshold: RILM Selection
9.2.2.2
Undervoltage Lockout Set Point
9.2.2.3
Setting Output Voltage Ramp Time (TdVdT)
9.2.2.3.1
Case 1: Start-Up Without Load. Only Output Capacitance COUT Draws Current
9.2.2.3.2
Case 2: Start-Up With Load. Output Capacitance COUT and Load Draw Current
9.2.3
Support Component Selection: CIN
9.2.4
Application Curves
9.2.5
Controlled Power Down (Quick Output Discharge) using TPS2595x5
9.2.6
Overvoltage Lockout using TPS259573
10
Power Supply Recommendations
10.1
Transient Protection
10.2
Output Short-Circuit Measurements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
文档支持
12.1.1
相关文档
12.1.2
相关链接
12.2
接收文档更新通知
12.3
社区资源
12.4
商标
12.5
静电放电警告
12.6
术语表
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DSG|8
MPDS308C
散热焊盘机械数据 (封装 | 引脚)
DSG|8
QFND141I
订购信息
zhcshv0c_oa
zhcshv0c_pm
1
特性
宽输入电压范围:2.7V 至 18V
绝对最大值为 20V
TPS2595x5 版本:3V 至 18V
低导通电阻:R
ON
= 34mΩ(典型值)
快速过压保护钳位(3.8V、5.7V 和 13.7V),响应时间 5µs(典型值)
TPS2595x0、TPS2595x1、TPS2595x5:带有可调节欠压锁定 (UVLO) 的高电平有效使能输入
TPS2595x3:带有可调节过压锁定 (OVLO) 的低电平有效使能输入
配备负载电流监控器输出 (ILM) 的可调节电流限制
电流范围:0.5A 至 4A
电流限制准确度:±7.5%
可调节的输出转换率控制 (dVdt)
过热保护 (OTP)
故障指示引脚 (
FLT
)
UL 2367 认证 – 文件号E169910
R
ILM
>= 487Ω(最大电流 4.42A)
IEC 62368-1 认证
单点故障测试期间安全 (IEC 62368-1)
ILM 引脚断开/短路检测