ZHCSNG0A
April 2023 – April 2024
TPS929160-Q1
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Timing Requirements
5.7
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Device Bias and Power
6.3.1.1
Power Bias (VBAT)
6.3.1.2
Enable and Shutdown (EN)
6.3.1.3
5V Low-Drop-Out Linear Regulator (VLDO)
6.3.1.4
Undervoltage Lockout (UVLO) and Power-On-Reset (POR)
6.3.1.5
Power Supply (SUPPLY)
6.3.1.6
Programmable Low Supply Warning
6.3.2
Constant Current Output
6.3.2.1
Reference Current with External Resistor (REF)
6.3.2.2
64-Step Programmable High-Side Constant-Current Output
6.3.3
PWM Dimming
6.3.3.1
PWM Generator
6.3.3.2
PWM Dimming Frequency
6.3.3.3
Blank Time
6.3.3.4
Phase Shift PWM Dimming
6.3.3.5
Linear Brightness Control
6.3.3.6
Exponential Brightness Control
6.3.4
FAIL-SAFE State Operation
6.3.5
On-Chip, 8-Bit, Analog-to-Digital Converter (ADC)
6.3.5.1
Minimum On Time for ADC Measurement
6.3.5.2
ADC Auto Scan
6.3.5.3
ADC Error
6.3.6
NSTB Output
6.3.7
Diagnostic and Protection in NORMAL State
6.3.7.1
VBAT Undervoltage Lockout Diagnostics in NORMAL state
6.3.7.2
Low-Supply Warning Diagnostics in NORMAL State
6.3.7.3
Supply Undervoltage Diagnostics in NORMAL State
6.3.7.4
Reference Diagnostics in NORMAL state
6.3.7.5
Pre-Thermal Warning in NORMAL state
6.3.7.6
Overtemperature Protection in NORMAL state
6.3.7.7
Overtemperature Shutdown in NORMAL state
6.3.7.8
LED Open-Circuit Diagnostics in NORMAL state
6.3.7.9
LED Short-Circuit Diagnostics in NORMAL state
6.3.7.10
Single-LED Short-Circuit Detection in NORMAL state
6.3.7.11
EEPROM CRC Error in NORMAL state
6.3.7.12
Communication Loss Diagnostic in NORMAL state
6.3.7.13
Fault Masking in NORMAL state
55
6.3.8
Diagnostic and Protection in FAIL-SAFE states
6.3.8.1
Supply Undervoltage Lockout Diagnostics in FAIL-SAFE states
6.3.8.2
Low-Supply Warning Diagnostics in FAIL-SAFE states
6.3.8.3
Supply Undervoltage Diagnostics in FAIL-SAFE State
6.3.8.4
Reference Diagnostics in FAIL-SAFE states
6.3.8.5
Pre-Thermal Warning in FAIL-SAFE state
6.3.8.6
Overtemperature Protection in FAIL-SAFE state
6.3.8.7
Overtemperature Shutdown in FAIL-SAFE state
6.3.8.8
LED Open-Circuit Diagnostics in FAIL-SAFE state
6.3.8.9
LED Short-Circuit Diagnostics in FAIL-SAFE state
6.3.8.10
Single-LED Short-Circuit Detection in FAIL-SAFE state
6.3.8.11
EEPROM CRC Error in FAIL-SAFE state
6.3.8.12
Fault Masking in FAIL-SAFE state
69
6.3.9
OFAF Setup In FAIL-SAFE state
6.3.10
ERR Output
6.4
Device Functional Modes
6.4.1
POR State
6.4.2
INITIALIZATION state
6.4.3
NORMAL state
6.4.4
FAIL-SAFE state
6.4.5
PROGRAM state
6.5
Programming
6.5.1
FlexWire Protocol
6.5.1.1
Protocol Overview
6.5.1.2
UART Interface Address Setting
6.5.1.3
Status Response
6.5.1.4
Synchronization Byte
6.5.1.5
Device Address Byte
6.5.1.6
Register Address Byte
6.5.1.7
Data Frame
6.5.1.8
CRC Frame
6.5.1.9
Burst Mode
6.5.2
Registers Lock
6.5.3
Register Default Data
6.5.4
EEPROM Programming
6.5.4.1
Chip Selection by Pulling REF Pin High
6.5.4.2
Chip Selection by ADDR Pins Configuration
6.5.4.3
EEPROM Register Access and Burn
6.5.4.4
EEPROM PROGRAM state Exit
6.6
Register Maps
6.6.1
BRT Registers
6.6.2
IOUT Registers
6.6.3
CONF Registers
6.6.4
CTRL Registers
6.6.5
FLAG Registers
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Smart Rear Lamp with Distributed LED Drivers
7.2.2
Design Requirements
7.2.3
Detailed Design Procedure
7.2.4
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
接收文档更新通知
8.2
支持资源
8.3
Trademarks
8.4
静电放电警告
8.5
术语表
9
Revision History
10
Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
DCP|38
散热焊盘机械数据 (封装 | 引脚)
DCP|38
PPTD170A
订购信息
zhcsng0a_oa
zhcsng0a_pm
1
特性
符合面向汽车应用的 AEC-Q100 标准:
温度等级 1:–40°C 至 +125°C,T
A
16
通道精密高侧电流输出:
器件电源电压为 4.5V 至 40V
LED 电源电压为 4V 至 36V
由电阻器设置的高达 100mA 的通道电流
2 位全局、6 位独立电流设置
高电流精度:电流为 5mA 至 100mA 时,精度 < ±5%
低压降:电流为 100mA 时为 750mV
12 位独立 PWM 调光
可编程 PWM 频率高达 20kHz
相移 PWM 调光
EN 和 NSTB 引脚支持睡眠模式下的超低静态电流
线性调光与指数调光方法
FlexWire™
控制接口
高达 1MHz 的时钟频率
一条灵活导线总线最多可连接 16 个器件
一帧的数据事务高达 24 字节
5V LDO 输出为 CAN 收发器供电
诊断和保护:
可编程失效防护状态
LED 开路检测
LED 短路检测
单 LED 短路诊断
可编程低电源检测
漏极开路
ERR
故障指示
适用于灵活导线接口的看门狗和 CRC
可进行引脚电压测量的 8 位 ADC
过热保护