JAJSHM7B
June 2019 – November 2021
TPS1HB50-Q1
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
6.1
Recommended Connections for Unused Pins
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
SNS Timing Characteristics
7.7
Switching Characteristics
7.8
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Protection Mechanisms
9.3.1.1
Thermal Shutdown
9.3.1.2
Current Limit
9.3.1.2.1
Current Limit Foldback
9.3.1.2.2
Programmable Current Limit
9.3.1.2.3
Undervoltage Lockout (UVLO)
9.3.1.2.4
VBB During Short-to-Ground
9.3.1.3
Voltage Transients
9.3.1.3.1
Load Dump
9.3.1.3.2
Driving Inductive Loads
9.3.1.4
Reverse Battery
9.3.1.5
Fault Event – Timing Diagrams
9.3.2
Diagnostic Mechanisms
9.3.2.1
VOUT Short-to-Battery and Open-Load
9.3.2.1.1
Detection With Switch Enabled
9.3.2.1.2
Detection With Switch Disabled
9.3.2.2
SNS Output
9.3.2.2.1
RSNS Value
9.3.2.2.1.1
High Accuracy Load Current Sense
9.3.2.2.1.2
SNS Output Filter
9.3.2.3
Fault Indication and SNS Mux
9.3.2.4
Resistor Sharing
9.3.2.5
High-Frequency, Low Duty-Cycle Current Sensing
9.4
Device Functional Modes
9.4.1
Off
9.4.2
Standby
9.4.3
Diagnostic
9.4.4
Standby Delay
9.4.5
Active
9.4.6
Fault
10
Application and Implementation
10.1
Application Information
10.1.1
Ground Protection Network
10.1.2
Interface With Microcontroller
10.1.3
I/O Protection
10.1.4
Inverse Current
10.1.5
Loss of GND
10.1.6
Automotive Standards
10.1.6.1
ISO7637-2
10.1.6.2
AEC-Q100-012 Short Circuit Reliability
10.1.7
Thermal Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Thermal Considerations
10.2.2.2
RILIM Calculation
10.2.2.3
Diagnostics
10.2.2.3.1
Selecting the RISNS Value
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Documentation Support
13.1.1
Related Documentation
13.2
Receiving Notification of Documentation Updates
13.3
サポート・リソース
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
Glossary
14
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
PWP|16
MPDS371A
サーマルパッド・メカニカル・データ
PWP|16
PPTD352A
発注情報
jajshm7b_oa
jajshm7b_pm
9.3.2
Diagnostic Mechanisms