The power protection chip is a core component in modern electronic devices that ensures stable system operation. Its classification logic can be based on the protected objects and application scenarios. The following is an original classification analysis based on technical functions:
1、 Energy path safety category
Input level protection chip
Surge suppression chip (such as TVS array chip): designed for transient high voltage such as lightning strikes and static electricity, with a typical response time of less than 1ps
Reverse polarity protection chip: Integrated intelligent MOS control, supporting 40V reverse voltage blocking
Input overvoltage latch chip: equipped with programmable threshold (536V), automatically cuts off the input circuit
Power transmission control chip
Intelligent fuse chip: digital resettable overcurrent protection, supporting I ² T algorithm
Hot swappable controller: load hot switching management with slow start function
Arc suppression chip: designed for millisecond arc detection in high-voltage direct current systems
2、 Energy storage unit protection category
Chemical battery management chip
Multi string lithium battery protection IC: supports 416 string monitoring, integrated passive balancing
Super capacitor protector: voltage balance and over discharge protection combined in one
Fuel cell protection module: interface for hydrogen leak detection and pressure monitoring
Circuit energy storage protection
Large capacity capacitor protection IC: anti surge current and voltage backflow
Inductive energy storage protector: back electromotive force absorption and over magnetic saturation detection
3、 System level protection category
Environmental adaptive protection
Wide temperature range protection chip (55 ℃~175 ℃): specifically designed for automotive grade working conditions
Three proof protection module: integrated humidity, salt spray, and dust sensors
Intelligent diagnostic chip
Fault prediction IC: Failure prediction based on machine learning algorithms
Digital protection coprocessor: supports CAN/LIN bus communication
4、 Composite protection scheme
Power Path Manager
Multiple input selection IC: supports intelligent switching between solar energy/mains power/battery
Dynamic power divider: real-time load priority management
Protection function integrated chip
Intelligent PD protocol protector: USBPD3.1+overvoltage and overcurrent protection
Wireless Charging Protection IC: Integrated FOD Detection and Temperature Monitoring
Technological Evolution Trends:
Currently, power protection chips are developing towards three directions: functional integration (such as integrating 15 protection functions on a single chip), high-speed response (GaN technology enables protection actions to be less than 10ns), and intelligent diagnosis (embedded MCU for adaptive protection). In emerging fields such as new energy vehicles and intelligent Internet of Things, protection chips are beginning to integrate power electronics and digital communication technology, forming intelligent protection nodes with network interaction capabilities.
