ZHCSMW7B
december 2020 – february 2023
TPS22950
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and 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
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Current Limiting (TPS22950, TPS22950C)
9.3.2
Current Limiting (TPS22950L)
9.3.3
Adjusting the Current Limit
9.3.4
Reverse Current Blocking (TPS22950, TPS22950C)
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Curves
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
接收文档更新通知
11.2
支持资源
11.3
Trademarks
11.4
静电放电警告
11.5
术语表
12
Mechanical, Packaging, and Orderable Information
1
特性
输入电压范围 (V
IN
):1.8 V 至 5.5V
输出电流限制 (I
LIMIT
):0.05A–3.5A (典型值)
TPS22950:自动重试电流限制响应
TPS22950L:闭锁电流限制响应
热关断 (TSD)
导通电阻(R
ON
):
V
IN
= 5V 时,R
ON
:34mΩ(典型值)
V
IN
= 3.3V 时,R
ON
:41mΩ(典型值)
慢速开通时序可限制浪涌电流(典型值):
V
IN
= 5V 时,t
ON
:800µs
V
IN
= 3.3V 时,t
ON
:550µs
常开的反向电流阻断 (TPS22950)
故障指示 (FLT)
快速输出放电 (QOD):150Ω
ON 引脚智能下拉电阻 (R
PD,ON
):
ON ≥ V
IH
(I
ON
):50nA(最大值)
ON ≤ V
IL
(R
PD,ON
):500kΩ(典型值)
低功耗:
导通状态 (I
Q
):40µA(典型值)
关闭状态 (I
SD
):0.2µA(典型值)
UL 2367 认证 – 文件号 E169910
已通过 I
LIM
= 66mA 至 2.46A 认证