Home Power management High-side switches & controllers High-side switches
Home
Power management
High-side switches & controllers
High-side switches

TPS1HB08-Q1

ACTIVE

40-V, 8-mΩ, 1-ch automotive smart high-side switch with adjustable current limit

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
NEW TPS1HC08-Q1 ACTIVE Automotive, 9.7mΩ, 10A single-channel smart high-side switch Smaller package

TPS1HB08-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Rating Automotive Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 8 Imax (A) 10 Current limit (max) (A) 70 Current limit (min) (A) 6.4 Current limit type Adjustable FET Internal Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out TI functional safety category Functional Safety-Capable Current limit accuracy +25%/-36% Current sense accuracy +5/-5% @ 1A 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
Number of channels 1 Rating Automotive Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 8 Imax (A) 10 Current limit (max) (A) 70 Current limit (min) (A) 6.4 Current limit type Adjustable FET Internal Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out TI functional safety category Functional Safety-Capable Current limit accuracy +25%/-36% Current sense accuracy +5/-5% @ 1A 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
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
    • Withstands 40-V load dump
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Single-channel smart high-side switch with 8-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit set-point from 6.4 A to 70 A
    • Version F: 94 A fixed ILIM
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground and battery
    • Protection against reverse battery events including automatic switch on of FET with reverse voltage
    • Automatic shut off on loss of battery and ground
    • Integrated output clamp to demagnetize inductive loads
    • Configurable fault handling
  • Analog sense output can be configured to accurately measure:
    • Load current
    • Device temperature
  • Provides fault indication through SNS pin or FLT pin
    • Detection of open load and short-to-battery
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
    • Withstands 40-V load dump
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Single-channel smart high-side switch with 8-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit set-point from 6.4 A to 70 A
    • Version F: 94 A fixed ILIM
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground and battery
    • Protection against reverse battery events including automatic switch on of FET with reverse voltage
    • Automatic shut off on loss of battery and ground
    • Integrated output clamp to demagnetize inductive loads
    • Configurable fault handling
  • Analog sense output can be configured to accurately measure:
    • Load current
    • Device temperature
  • Provides fault indication through SNS pin or FLT pin
    • Detection of open load and short-to-battery

The TPS1HB08-Q1 device is a smart high-side switch intended for use in 12-V automotive systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits in automotive systems. The device protects against faults through a reliable current limit, which, depending on device variant, is adjustable from 6.4 A to 70 A or set at 94 A. The high current limit range allows for usage in loads that require large transient currents, while the low current limit range provides improved protection for loads that do not require high peak current. The device is capable of reliably driving a wide range of load profiles.

The TPS1HB08-Q1 also provides a high accuracy analog current sense that allows for improved load diagnostics. By reporting load current and device temperature to a system MCU, the device enables predictive maintenance and load diagnostics that improves the system lifetime.

The TPS1HB08-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.

The TPS1HB08-Q1 device is a smart high-side switch intended for use in 12-V automotive systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits in automotive systems. The device protects against faults through a reliable current limit, which, depending on device variant, is adjustable from 6.4 A to 70 A or set at 94 A. The high current limit range allows for usage in loads that require large transient currents, while the low current limit range provides improved protection for loads that do not require high peak current. The device is capable of reliably driving a wide range of load profiles.

The TPS1HB08-Q1 also provides a high accuracy analog current sense that allows for improved load diagnostics. By reporting load current and device temperature to a system MCU, the device enables predictive maintenance and load diagnostics that improves the system lifetime.

The TPS1HB08-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.
filter Find other High-side switches
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
TPS1HB16-Q1 ACTIVE 40-V, 16-mΩ, 1-ch automotive smart high-side switch with adjustable current limit Higher RON (16mΩ)

Technical documentation

No results found. Please clear your search and try again.
View all 10
Top documentation Type Title Format options Date
* Data sheet TPS1HB08-Q1 40-V, 8-mΩ Single-Channel Smart High-Side Switch datasheet (Rev. C) PDF | HTML Jan 15, 2020
Technical article How to differentiate between open-load and short-to- battery faults in high-side switches PDF | HTML May 8, 2026
Application note Basics of High-Side Switches and Controllers PDF | HTML Mar 31, 2026
Application brief Full-Featured Automotive Side Mirror PDF | HTML Mar 15, 2024
Application note Driving Bulb Loads with High Side Switches PDF | HTML Oct 5, 2021
Application note Driving PWM Loads with TI High-Side Switches PDF | HTML Mar 2, 2021
Functional safety information TPS1HB08-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML Jan 11, 2021
Functional safety information TPS1HB08-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec 16, 2019
Application note High Accuracy Current Sense of Smart High Side Switches Nov 1, 2019
E-book 11 Ways to Protect Your Power Path Jul 3, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

HSS-MOTHERBOARDEVM — High side switches motherboard

The HSS-MOTHERBOARDEVM evaluation module is designed to evaluate the <50mΩ Ron devices in TI's high side switch portfolio. These devices include TPS1HA08-Q1, TPS2HB08-Q1, TPS2HB16-Q1, TPS2HB35-Q1, and TPS2HB50-Q1. This board does not come populated with the devices, but allows any of the (...)
User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Simulation model

TPS1HB08A-Q1 PSpice Unencrypted Transient Model (Rev. E)

SLVMD25E.ZIP (136 KB) - PSpice model
Supported products & hardware
Simulation model

TPS1HB08B-Q1 PSpice Unencrypted Transient Model (Rev. B)

SLVMD26B.ZIP (159 KB) - PSpice model
Supported products & hardware
Simulation model

TPS1HB08F-Q1 PSpice Unencrypted Transient Model (Rev. B)

SLVMD27B.ZIP (131 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVRBG2 — ICL Variation Calculator Given RILIM

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos