ZHCSGP5C
August 2017 – February 2022
TIC12400-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
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
VS Pin
8.3.2
VDD Pin
8.3.3
Device Initialization
8.3.4
Device Trigger
8.3.5
Device Reset
8.3.5.1
VS Supply POR
8.3.5.2
Hardware Reset
8.3.5.3
Software Reset
8.3.6
VS Under-Voltage (UV) Condition
8.3.7
VS Over-Voltage (OV) Condition
8.3.8
Switch Inputs Settings
8.3.8.1
Input Current Source and Sink Selection
8.3.8.2
Input Mode Selection
8.3.8.3
Input Enable Selection
8.3.8.4
Thresholds Adjustment
8.3.8.5
Wetting Current Configuration
8.3.9
Interrupt Generation and INT Assertion
8.3.9.1
INT Pin Assertion Scheme
8.3.9.2
Interrupt Idle Time (tINT_IDLE) Time
8.3.9.3
Microcontroller Wake-Up
8.3.9.4
Interrupt Enable or Disable and Interrupt Generation Conditions
8.3.9.5
Detection Filter
8.3.10
Temperature Monitor
8.3.10.1
Temperature Warning (TW)
8.3.10.2
Temperature Shutdown (TSD)
8.3.11
Parity Check and Parity Generation
8.3.12
Cyclic Redundancy Check (CRC)
8.4
Device Functional Modes
8.4.1
Continuous Mode
8.4.2
Polling Mode
8.4.2.1
Standard Polling
8.4.2.2
Matrix polling
8.4.3
Additional Features
8.4.3.1
Clean Current Polling (CCP)
8.4.3.2
Wetting Current Auto-Scaling
8.4.3.3
VS Measurement
8.4.3.4
Wetting Current Diagnostic
8.4.3.5
ADC Self-Diagnostic
8.5
Programming
8.5.1
SPI Communication Interface Buses
8.5.1.1
Chip Select ( CS)
8.5.1.2
System Clock (SCLK)
8.5.1.3
Slave In (SI)
8.5.1.4
Slave Out (SO)
8.5.2
SPI Sequence
8.5.2.1
Read Operation
8.5.2.2
Write Operation
8.5.2.3
Status Flag
8.6
Register Maps
8.7
Programming Guidelines
9
Application Information Disclaimer
9.1
Application Information
9.2
Using TIC12400-Q1 in a 12 V Automotive System
9.3
Resistor-coded Switches Detection in Automotive Body Control Module
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
接收文档更新通知
12.2
支持资源
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
术语表
13
Mechanical, Packaging, and Orderable Information
1
特性
符合汽车应用要求
具有符合 AEC-Q100 标准的下列特性:
器件温度等级 1:–40°C 至 125°C 的工作环境温度范围
器件 HBM ESD 分类等级 H2
器件 CDM ESD 分类等级 C4B
提供功能安全
有助于进行功能安全系统设计的文档
旨在支持 12V 汽车系统,并提供过压和欠压警告
监控多达 24 路直接开关输入,并可配置其中 10 路输入以监控接地或连接到电池的开关
开关输入可承受高达 40V 的电压(负载突降条件)和低至 −24V 的电压(反极性条件)
6 种可配置的湿性电流设置:
(0mA、1mA、2mA、5mA、10mA 和 15mA)
适用于多位模拟开关监控的 10 位集成 ADC
适用于数字开关监控并具有 4 个可编程阈值的集成比较器
轮询模式下的超低工作电流:
68μA 典型值(t
POLL
= 64ms,t
POLL_ACT
= 128μs,
全部 24 路输入均有效,比较器模式,所有开关均打开)
使用 3.3V/5V 串行外设接口 (SPI) 协议直接与 MCU 对接
可产生中断来支持所有输入的唤醒操作
集成电池和温度传感
采用适当的外部组件根据 ISO-10605 在输入引脚上实现 ±8kV 接触放电 ESD 保护
38 引脚 TSSOP 封装