SLVAG11 March   2026 TPS1200-Q1 , TPS1210-Q1 , TPS1211-Q1 , TPS1212-Q1 , TPS1213-Q1 , TPS1214-Q1 , TPS1H000-Q1 , TPS1H100-Q1 , TPS1H200A-Q1 , TPS1HA08-Q1 , TPS1HB08-Q1 , TPS1HB16-Q1 , TPS1HB35-Q1 , TPS1HB50-Q1 , TPS1HC04-Q1 , TPS1HC08-Q1 , TPS1HC100-Q1 , TPS1HC120-Q1 , TPS1HC30-Q1 , TPS1HTC100-Q1 , TPS1HTC30-Q1 , TPS272C45 , TPS274160 , TPS274C65 , TPS274C65CP , TPS27S100 , TPS27SA08 , TPS27SA08-Q1 , TPS281C100 , TPS281C30 , TPS2H000-Q1 , TPS2H160-Q1 , TPS2HB16-Q1 , TPS2HB35-Q1 , TPS2HB50-Q1 , TPS2HC08-Q1 , TPS2HC120-Q1 , TPS2HC16-Q1 , TPS2HCS05-Q1 , TPS2HCS08-Q1 , TPS2HCS10-Q1 , TPS4800-Q1 , TPS4810-Q1 , TPS4811-Q1 , TPS4812-Q1 , TPS4813-Q1 , TPS4816-Q1 , TPS482H85-Q1 , TPS4H000-Q1 , TPS4H160-Q1 , TPS4HC120-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 High-Side Switches Compared to Other Power Switch ICs
      1. 1.1.1 Discrete High-Side Implementations
        1. 1.1.1.1 Level One: NFET-Controlled PFET
        2. 1.1.1.2 Level Two: NFET with a Step-Up Converter
        3. 1.1.1.3 Level Three: NFET, Step-Up Converter and Discretely Implemented Protections and Diagnostics
      2. 1.1.2 Comparison to Load Switches
      3. 1.1.3 Comparison to Hot-Swap Controllers and eFuses (Integrated Hot Swaps)
      4. 1.1.4 Comparison to Motor Drivers and Gate Drivers
      5. 1.1.5 Summary
    2. 1.2 Common Automotive and Industrial Standards
      1. 1.2.1 Typical Automotive Voltage Ranges
      2. 1.2.2 Typical Industrial Voltage Ranges
      3. 1.2.3 Automotive Qualifications and Standards
      4. 1.2.4 Industrial Qualifications and Standards
  5. 2Architectural and Application Differences of High-Side Switches and Controllers
    1. 2.1 Architecture Differences
    2. 2.2 Application Differences
      1. 2.2.1 Load Driving
      2. 2.2.2 Input Protection and Circuit Breaking
    3. 2.3 Summary and Product Family Selection Matrix
  6. 3Core Features of High-Side Switches and Controllers
    1. 3.1 Protection Features
      1. 3.1.1 Overcurrent Protection
      2. 3.1.2 Thermal Shutdown
        1. 3.1.2.1 Absolute Thermal Shutdown
        2. 3.1.2.2 Relative Thermal Shutdown
        3. 3.1.2.3 Undervoltage Lockout and Overvoltage Lockout (UVLO and OVLO)
        4. 3.1.2.4 Inductive Clamping
      3. 3.1.3 Reverse Polarity Protection
        1. 3.1.3.1 Ground Networks
        2. 3.1.3.2 Reverse Polarity and Reverse Current Protection in High-Side Switch Controllers
    2. 3.2 Diagnostic Features
      1. 3.2.1 Analog Current Sense
      2. 3.2.2 Open Load and Short-to-Battery Detection
      3. 3.2.3 Junction Temperature Sensing
      4. 3.2.4 Input and Output Voltage Sensing
  7. 4Specialized Features
    1. 4.1 Capacitive Charging Features
    2. 4.2 Serial Communication and Corresponding Features
    3. 4.3 Features for Industrial Systems: Enhanced EFT, Reverse Current Blocking, LED Driving
    4. 4.4 Additional Specialized Features
      1. 4.4.1 Integrated Watchdog Timer
      2. 4.4.2 Cyclic Redundancy Check (CRC)
      3. 4.4.3 Steady-State Programmable PWM Switching
    5. 4.5 Smart eFuse High-Side Switch Protection Features
      1. 4.5.1 Energy Management with Programmable Time-Current Characteristics (I2T)
      2. 4.5.2 Power Optimization Through Low-Power Mode
      3. 4.5.3 Memory Retention After Power Cycling (NVM or EEPROM)
  8. 5Summary
  9. 6References

1.1.2 Comparison to Load Switches

TI's load switches and high-side switches are both integrated high-side power switch integrated circuits (ICs) that connect a voltage source to an electrical load. Both have an integrated MOSFET and charge pump. Since the basic concept is the same, it is common to see other manufacturers use these names interchangeably. In TI's portfolio, the switches have different names because they offer different baseline specifications and feature sets, each tailored to the target use case. Load switches are low-voltage switches, designed to drive on-board loads in 3.3V, 5V or 12V systems. On-board loads are in a more controlled environment, so the load switch can meet system requirements with minimal protection features. Common protection features include slew rate control, thermal protection and quick output discharge. Some devices may also offer features like short circuit protection, reverse current protection or current monitoring.

In contrast, the high-side switch is a fully protected, feature-rich device optimized for driving off-board loads in 12V, 24V or 48V systems. The devices must withstand tougher voltage and current transients on unregulated rails. High-side switches are designed to drive all types of electrical loads, enduring capacitive inrush currents and kickback from inductive loads. Often supplied by off-board sources and driving off-board loads, the high-side switch needs to have more extensive protection features and diagnostic capabilities. Section 3 and Section 4 discuss these features in more detail. Table 1-2 provides a comparison between high-side switches and load switches and lists the extensive protection and diagnostic features of high-side switches.

Table 1-2 Comparison of High-Side Switches and Load Switches
High-Side Switch Load Switch
FET Configuration Internal Internal
Typical Input Voltages Supported 12V, 24V, 48V 3.3V, 5V
Typical Output Current Capability 750mA–10A 200mA–15A
Typical Use Case Off-board load driving and power distribution On-board load driving and power distribution
Protection Features Adjustable current limit
Overvoltage protection *
Reverse current blocking*
Undervoltage lockout (UVLO)
Absolute thermal shutdown
Relative thermal shutdown
Loss-of-GND, loss-of-supply protection
Reverse battery protection
Inductive discharge clamp		 Current limit*
Overvoltage protection*
Reverse current blocking*
UVLO
Thermal shutdown
Other Features Fault output
Analog current sensing
ON and OFF state open-load and short-to-battery detection
Overload and short-to-ground detection
UL recognition1		 Quick output discharge
Power good pin
Slew rate control
Interface GPIO or SPI GPIO
AEC-Q100 Qualification Available Yes Yes
  1. *Available only in select devices.