ZHCSQ77A
February 2023 – September 2023
TPS25948
PRODUCTION DATA
1
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
Electrical Characteristics
7.5
Timing Requirements
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 Lockout (UVLO and UVP)
8.3.2
Overvoltage Lockout (OVLO)
8.3.3
Inrush Current, Overcurrent, and Short Circuit Protection
8.3.3.1
Slew Rate (dVdt) and Inrush Current Control
8.3.3.2
Active Current Limiting
8.3.3.3
Short-Circuit Protection
8.3.4
Analog Load Current Monitor
8.3.5
Reverse Current Protection
8.3.6
Overtemperature Protection (OTP)
8.3.7
Fault Response and Indication (FLT)
8.3.8
Supply Good Indication (SPLYGD/SPLYGD)
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Single Device, Self-Controlled
9.3
Typical Application
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.2.1
Setting Overvoltage Threshold
9.3.2.2
Setting Output Voltage Rise Time (tR)
9.3.2.3
Setting Overcurrent Threshold (ILIM)
9.3.2.4
Setting Overcurrent Blanking Interval (tITIMER)
9.3.3
Application Curves
9.4
Active ORing
9.5
Priority Power MUXing
9.6
Parallel Operation
9.7
USB PD Port Protection
9.8
Power Supply Recommendations
9.8.1
Transient Protection
9.8.2
Output Short-Circuit Measurements
9.9
Layout
9.9.1
Layout Guidelines
9.9.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
接收文档更新通知
10.3
支持资源
10.4
Trademarks
10.5
静电放电警告
10.6
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
YWP|12
MXCC020
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsq77a_oa
1
特性
宽工作输入电压范围:3.5V 至 23V
绝对最大值为 28V
可以从 IN 或 OUT 供电
具有低导通电阻的集成式背对背 FET:R
ON
= 12.2mΩ(典型值)
具有真反向电流阻断功能的理想二极管运行状态 (RCB)
外部引脚控制 (RCBCTRL),可禁用 RCB 并允许在稳态下进行双向电力输送,以支持 USB OTG 或 DRP 操作
快速过压保护
可调节过压锁定 (OVLO),响应时间为 1μs(典型值)
过流保护,具有负载电流监控器输出 (ILM)
有效电流限制响应
可调节阈值 (I
LIM
) 1A 至 9A
I
LIM
> 3A 时精度为 ±10%(最大值)
可调瞬态消隐计时器 (ITIMER),支持 > I
LIM
的峰值电流
输出负载电流监控精度:±6%(典型值)(I
OUT
≥ 3A)
通过快速跳变响应实现短路保护
响应时间 < 1μs(典型值)
可调节和固定阈值
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)
过热保护
数字输出:电源正常 (SPLYGD/
SPLYGD
) 和故障指示
(FLT
)
UL 2367 认证(已计划)
IEC 62368-1 CB 认证(已计划)
小尺寸:PowerWCSP 2.4mm × 1.7mm,0.5mm 间距