JAJSR45
august 2023
TPS92621-Q1
PRODUCTION DATA
1
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power Supply (SUPPLY)
7.3.1.1
Power-On Reset (POR)
7.3.1.2
Suppply Current in Fault Mode
7.3.2
Enable and Shutdown(EN)
7.3.3
Constant-Current Output and Setting (IN)
7.3.4
Thermal Sharing Resistor (OUT and RES)
7.3.5
PWM Control (PWM)
7.3.6
Supply Control
7.3.7
Diagnostics
7.3.7.1
LED Short-to-GND Detection
7.3.7.2
LED Open-Circuit Detection
7.3.7.3
LED Open-Circuit Detection Enable (DIAGEN)
7.3.7.4
Overtemperature Protection
7.3.7.5
Low Dropout Operation
7.3.8
FAULT Bus Output With One-Fails-All-Fail
7.3.9
FAULT Table
7.3.10
LED Fault Summary
7.3.11
IO Pins Inner Connection
7.4
Device Functional Modes
7.4.1
Undervoltage Lockout, V(SUPPLY) < V(POR_rising)
7.4.2
Normal Operation V(SUPPLY) ≥ 4.5 V
7.4.3
Low-Voltage Dropout Operation
7.4.4
Fault Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
BCM Controlled Rear Lamp With One-Fails-All-Fail Setup
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
Independent PWM Controlled Rear Lamp By MCU
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
ドキュメントの更新通知を受け取る方法
9.2
サポート・リソース
9.3
Trademarks
9.4
静電気放電に関する注意事項
9.5
用語集
10
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)
DGN|8
MPDS046F
サーマルパッド・メカニカル・データ
DGN|8
PPTD274A
発注情報
jajsr45_oa
4
Revision History
DATE
REVISION
NOTES
august 2023
*
Initial release.