ZHCSP77A
December 2021 – March 2022
TPS92624-Q1
PRODUCTION DATA
1
特性
2
应用
3
说明
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
Timing Requirements
6.7
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
7.3.3
Constant-Current Output and Setting (INx)
7.3.4
Thermal Sharing Resistor (OUTx and RESx)
7.3.5
PWM Control (PWMx)
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
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
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
Electrostatic Discharge Caution
11.5
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PWP|20
MHTS001G
散热焊盘机械数据 (封装 | 引脚)
PWP|20
PPTD027Z
订购信息
zhcsp77a_oa
11.5
术语表
TI 术语表
本术语表列出并解释了术语、首字母缩略词和定义。