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TPS1HB08-Q1

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

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Data sheet

TPS1HB08-Q1

ACTIVE
Data sheet Order now

Product details

Imax (A) 10 Current limit (Min) (A) 6.4 Current limit (Max) (A) 70 Current limit type Adjustable Current limit accuracy +25%/-36% Current sense accuracy +5/-5% @ 1A Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out Rating Automotive
Imax (A) 10 Current limit (Min) (A) 6.4 Current limit (Max) (A) 70 Current limit type Adjustable Current limit accuracy +25%/-36% Current sense accuracy +5/-5% @ 1A Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out Rating Automotive
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 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.
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Technical documentation

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Type Title Date
* Data sheet TPS1HB08-Q1 40-V, 8-mΩ Single-Channel Smart High-Side Switch datasheet (Rev. C) PDF | HTML 15 Jan 2020
Application note Driving Bulb Loads with High Side Switches PDF | HTML 05 Oct 2021
Application note Driving PWM Loads with TI High-Side Switches PDF | HTML 02 Mar 2021
Functional safety information TPS1HB08-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 11 Jan 2021
Functional safety information TPS1HB08-Q1 Functional Safety FIT Rate and Failure Mode Distribution 16 Dec 2019
Application note High Accuracy Current Sense of Smart High Side Switches 01 Nov 2019
E-book 11 Ways to Protect Your Power Path 03 Jul 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
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Simulation model

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

SLVMD25E.ZIP (136 KB) - PSpice Model
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Simulation model

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

SLVMD26B.ZIP (159 KB) - PSpice Model
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Simulation model

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

SLVMD27B.ZIP (131 KB) - PSpice Model
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Calculation tool

ICL Variation Calculator Given RILIM (Rev. B)

SLVRBG2B.ZIP (21 KB)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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HTSSOP (PWP) 16 View options

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