ZHCSMA7C
january 2022 – december 2022
TPS4811-Q1
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
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
Charge Pump and Gate Driver output (VS, PU, PD, BST, SRC)
9.3.2
Capacitive Load Driving
9.3.2.1
FET Gate Slew Rate Control
9.3.2.2
Using Precharge FET - (with TPS48111-Q1 Only)
9.3.3
Overcurrent and Short-Circuit Protection
9.3.3.1
Overcurrent Protection With Auto-Retry
9.3.3.2
Overcurrent Protection With Latch-Off
9.3.4
Short-Circuit Protection
9.3.5
Analog Current Monitor Output (IMON)
9.3.6
Overvoltage (OV) and Undervoltage Protection (UVLO)
9.3.7
Device Functional Mode (Shutdown Mode)
9.3.8
Remote Temperature sensing and Protection (DIODE)
9.3.9
Output Reverse Polarity Protection
9.3.10
TPS4811x-Q1 as a Simple Gate Driver
10
Application and Implementation
10.1
Application Information
10.2
Typical Application: Driving HVAC PTC Heater Load on KL40 Line in Power Distribution Unit
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Curves
10.3
Typical Application: Driving B2B FETs With Pre-charging the Output Capacitance
10.3.1
Design Requirements
10.3.2
External Component Selection
10.3.3
Application Curves
10.4
Power Supply Recommendations
10.5
Layout
10.5.1
Layout Guidelines
10.5.2
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
封装选项
机械数据 (封装 | 引脚)
DGX|19
MPSS147
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsma7c_oa
zhcsma7c_pm
10.2.3
Application Curves
Figure 10-2
Start-Up Profile of Bootstrap Voltage for INP = GND and C
BST
= 470 nF
Figure 10-4
Turn-ON Response of TPS48110-Q1 for INP -> LOW to HIGH and C
BST
= 470 nF
Figure 10-6
Overvoltage Cut-off Response at 58-V Level of TPS48110-Q1
Figure 10-8
IMON Response During 10-A Load Step
Figure 10-10
Auto-Retry Response of TPS48110-Q1 for an Overcurrent Fault
Figure 10-12
Response During Coming Out of Overload Fault With INP Reset
Figure 10-3
Start-Up Profile of Bootstrap Voltage for INP = HIGH and C
BST
= 470 nF
Figure 10-5
Turn-OFF Response of TPS48110-Q1 for INP -> HIGH to LOW and C
BST
= 470 nF
Figure 10-7
Load Switching at 100 Hz With TPS48110-Q1
Figure 10-9
Overcurrent Response of TPS48110-Q1 for a Load Step from 5 A to 18 A With 15-A Overcurrent Protection Setting
Figure 10-11
Latch-off Response of TPS48110-Q1 for an Overcurrent Fault
Figure 10-13
Output Hot-Short Response of the TPS48110-Q1 Device