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TPS2HCS05-Q1

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Data sheet

TPS2HCS05-Q1

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Data sheet Order now

Product details

FET Internal Number of channels 2 Rating Automotive Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 5 Imax (A) 10 Current limit type Adjustable Control interface SPI Features Current sense output, Current sense/monitor, I2T, Low power, Programmable current limit, SPI, Thermal shutdown, Undervoltage Lock Out (UVLO) TI functional safety category Functional Safety-Compliant Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Automotive load dump compatibility, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown
FET Internal Number of channels 2 Rating Automotive Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 5 Imax (A) 10 Current limit type Adjustable Control interface SPI Features Current sense output, Current sense/monitor, I2T, Low power, Programmable current limit, SPI, Thermal shutdown, Undervoltage Lock Out (UVLO) TI functional safety category Functional Safety-Compliant Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Automotive load dump compatibility, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown
UNKNOWN (PWC) 18 See data sheet
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C
    • Withstands 36V load dump
  • Dual-channel SPI controlled smart high-side switch with integrated nFETs.
  • Integrated wire-harness protection without MCU involvement and a SPI programmable fuse curve
    • Protection against persistent overload condition
  • User programmable EEPROM
  • Improve system-level reliability through SPI programmable adjustable overcurrent protection
  • SPI configurable capacitive charging mode to drive a wide range of capacitive input ECUs load current needs.
  • Low quiescent current, low-power ON-state to supply always-ON loads with automatic wake on load current increase with wake signal to MCU
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short-to-ground
    • Protection against reverse battery events including automatic switch on of FET with reverse supply voltage
    • Automatic shutoff on loss of battery
    • Integrated output clamp to demagnetize inductive loads
  • Digital sense output using SPI is configurable to measure:
    • Load current accurately with integrated ADC
    • Output or supply voltage, FET temperature
  • Provides full fault diagnostics through SPI and indication through FLT pin
    • Detection of open load and short-to-battery
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C
    • Withstands 36V load dump
  • Dual-channel SPI controlled smart high-side switch with integrated nFETs.
  • Integrated wire-harness protection without MCU involvement and a SPI programmable fuse curve
    • Protection against persistent overload condition
  • User programmable EEPROM
  • Improve system-level reliability through SPI programmable adjustable overcurrent protection
  • SPI configurable capacitive charging mode to drive a wide range of capacitive input ECUs load current needs.
  • Low quiescent current, low-power ON-state to supply always-ON loads with automatic wake on load current increase with wake signal to MCU
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short-to-ground
    • Protection against reverse battery events including automatic switch on of FET with reverse supply voltage
    • Automatic shutoff on loss of battery
    • Integrated output clamp to demagnetize inductive loads
  • Digital sense output using SPI is configurable to measure:
    • Load current accurately with integrated ADC
    • Output or supply voltage, FET temperature
  • Provides full fault diagnostics through SPI and indication through FLT pin
    • Detection of open load and short-to-battery

The TPS2HCS05-Q1 device is a dual-channel, smart high-side switch controlled through a serial peripheral interface (SPI), and is intended for power distribution and actuator drive applications. The device integrates robust protection to establish output wire and load protection against short-circuit or overload conditions. The device features overcurrent protection configurable through SPI, with sufficient flexibility to support loads that require large inrush currents and provide improved protection. The device also integrates a programmable fuse profile (current versus time) that turns off the switch under persistent overload conditions. Together, the two features allow for the optimization of the wire harness for any load profile with full protection.

The device supports an SPI-configurable capacitive charging mode for ECU loads in power distribution switch applications. The device also includes two low-power mode (LPM) states, an auto-entry mode and a manual entry mode, that enables the device to provide current to the load ECU while only consuming from 10µA to 32µA of current.

The TPS2HCS05-Q1 device also provides a high-accuracy digital-current sense over SPI that allows for improved load diagnostics. By reporting load current and the channel output voltage and output FET temperature to a system MCU, the device enables the diagnosis of switch and load failures.

The TPS2HCS05-Q1 is available in a HTSSOP package which allows for a reduced PCB footprint.

The TPS2HCS05-Q1 device is a dual-channel, smart high-side switch controlled through a serial peripheral interface (SPI), and is intended for power distribution and actuator drive applications. The device integrates robust protection to establish output wire and load protection against short-circuit or overload conditions. The device features overcurrent protection configurable through SPI, with sufficient flexibility to support loads that require large inrush currents and provide improved protection. The device also integrates a programmable fuse profile (current versus time) that turns off the switch under persistent overload conditions. Together, the two features allow for the optimization of the wire harness for any load profile with full protection.

The device supports an SPI-configurable capacitive charging mode for ECU loads in power distribution switch applications. The device also includes two low-power mode (LPM) states, an auto-entry mode and a manual entry mode, that enables the device to provide current to the load ECU while only consuming from 10µA to 32µA of current.

The TPS2HCS05-Q1 device also provides a high-accuracy digital-current sense over SPI that allows for improved load diagnostics. By reporting load current and the channel output voltage and output FET temperature to a system MCU, the device enables the diagnosis of switch and load failures.

The TPS2HCS05-Q1 is available in a HTSSOP package which allows for a reduced PCB footprint.
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* Data sheet TPS2HCS05-Q1 5mΩ , Automotive Dual-Channel , SPI Controlled High-Side Switch With Integrated I2T Wire Protection and Low Power Mode datasheet PDF | HTML Nov 2, 2026
* Data sheet TPS2HCS05-Q1 5mΩ , Automotive Dual-Channel , SPI Controlled High-Side Switch With Integrated I2T Wire Protection and Low Power Mode datasheet PDF | HTML Dec 12, 2025
Application note Basics of High-Side Switches and Controllers PDF | HTML Mar 31, 2026

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Evaluation board

HSS-HCMOTHERBRDEVM — Smart-fuse motherboard

The HSS-HCMOTHERBRDEVM and corresponding daughter cards (such as the HSS-2HCS10EVM) are used to showcase and evaluate all features of the Texas Instruments' smart-fuse high-side switch portfolio. The motherboard is designed to be used with several different daughtercards enabling the use of a (...)

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