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TPS2HB35-Q1

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40-V, 35-mΩ, 2-ch automotive smart high-side switch with adjustable current limit

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Data sheet

TPS2HB35-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 35 Imax (A) 3 Current limit (min) (A) 2 Current limit (max) (A) 25 Current limit type Adjustable Current limit accuracy +25%/-10% Current sense accuracy +/-4% @ 1A FET Internal Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out 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 Rating Automotive
Number of channels 2 Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 35 Imax (A) 3 Current limit (min) (A) 2 Current limit (max) (A) 25 Current limit type Adjustable Current limit accuracy +25%/-10% Current sense accuracy +/-4% @ 1A FET Internal Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out 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 Rating Automotive
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: TA = –40°C to
      125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
    • Withstands 40-V load dump
  • Dual-channel smart high-side switch with 35-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit adjustable from 2 A to 25 A
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground/battery
    • Protection against reverse battery events including automatic switch on with reverse voltage
    • Automatic shut off if loss of battery/ground occurs
    • 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
    • Detection of open load and short-to-battery
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: TA = –40°C to
      125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
    • Withstands 40-V load dump
  • Dual-channel smart high-side switch with 35-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit adjustable from 2 A to 25 A
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground/battery
    • Protection against reverse battery events including automatic switch on with reverse voltage
    • Automatic shut off if loss of battery/ground occurs
    • 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
    • Detection of open load and short-to-battery

The TPS2HB35-Q1 device is a dual-channel 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 2 A to 25 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 various load profiles.

The TPS2HB35-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 TPS2HB35-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.

The TPS2HB35-Q1 device is a dual-channel 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 2 A to 25 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 various load profiles.

The TPS2HB35-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 TPS2HB35-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 TPS2HB35-Q1 40-V, 35-mΩ Dual-Channel Smart High-Side Switch datasheet (Rev. D) PDF | HTML 14 Feb 2020
Application note How To Drive Resistive, Inductive, Capacitive, and Lighting Loads (Rev. E) PDF | HTML 09 Mar 2021
Application note Driving PWM Loads with TI High-Side Switches PDF | HTML 02 Mar 2021
Functional safety information TPS2HB35-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 28 Jan 2021
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
Application note AEC-Q100-012 Short-Circuit Reliability Test Results for Smart Power Switches (Rev. A) 06 May 2019
Application brief Improved Automotive Short Circuit Reliability With Adjustable Current Limiting (Rev. A) 11 Apr 2019
Application note Adjustable Current Limit of Smart Power Switches (Rev. B) 21 Jan 2019
Application note Reverse battery protection for high side switches 12 Nov 2018
Application note High-Side Switches Paralleling Channels 30 Apr 2018

Design & development

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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

TPS2HB35A-Q1 PSpice Transient Model

SLVMCZ1.ZIP (140 KB) - PSpice Model
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Simulation model

TPS2HB35A-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCZ0A.ZIP (9 KB) - PSpice Model
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Simulation model

TPS2HB35B-Q1 Unencrypted PSpice Transient Model (Rev. B)

SLVMCH4B.ZIP (9 KB) - PSpice Model
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Simulation model

TPS2HB35B-Q1 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMCH6C.ZIP (111 KB) - PSpice Model
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Simulation model

TPS2HB35C-Q1 Unencrypted PSpice Transient Model

SLVMDK5.ZIP (144 KB) - PSpice Model
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Simulation model

TPS2HB35D-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCH5A.ZIP (219 KB) - PSpice Model
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Simulation model

TPS2HB35F-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCH1A.ZIP (170 KB) - PSpice Model
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Calculation tool

SLVRBG2 — ICL Variation Calculator Given RILIM

Supported products & hardware

Supported products & hardware

Products
High-side switches
TPS1HB08-Q1 — 40-V, 8-mΩ, 1-ch automotive smart high-side switch with adjustable current limit TPS1HB16-Q1 — 40-V, 16-mΩ, 1-ch automotive smart high-side switch with adjustable current limit TPS1HB35-Q1 — 40-V, 35-mΩ, 1-ch automotive smart high-side switch with adjustable current limit TPS1HB50-Q1 — 40-V, 50-mΩ, 1-ch automotive smart high-side switch with adjustable current limit TPS2HB16-Q1 — 40-V, 16-mΩ, 2-ch automotive smart high-side switch with adjustable current limit TPS2HB35-Q1 — 40-V, 35-mΩ, 2-ch automotive smart high-side switch with adjustable current limit TPS2HB50-Q1 — 40-V, 50-mΩ, 2-ch automotive smart high-side switch with adjustable current limit
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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 Ultra Librarian
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