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TPS1HB50-Q1

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40-V, 50-mΩ, 1-ch automotive smart high-side switch with adjustable current limit

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Data sheet

TPS1HB50-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 50 Imax (A) 4 Current limit (min) (A) 2 Current limit (max) (A) 26 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +25%/-22% Current sense accuracy +4/-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 1 Operating voltage (max) (V) 18 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 50 Imax (A) 4 Current limit (min) (A) 2 Current limit (max) (A) 26 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +25%/-22% Current sense accuracy +4/-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
  • 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
  • Single-channel smart high-side switch with 50-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit set-point from 2 A to 18 A
  • 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
    • 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
  • Single-channel smart high-side switch with 50-mΩ RON (TJ = 25°C)
  • Improve system level reliability through adjustable current limiting
    • Current limit set-point from 2 A to 18 A
  • 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
    • Detection of open load and short-to-battery

The TPS1HB50-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 2 A to 18 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 TPS1HB50-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 TPS1HB50-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.

The TPS1HB50-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 2 A to 18 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 TPS1HB50-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 TPS1HB50-Q1 is available in a HTSSOP package which allows for reduced PCB footprint.
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Type Title Date
* Data sheet TPS1HB50-Q1 40-V, 50-mΩ Single-Channel Automotive Smart High-Side Switch datasheet (Rev. B) PDF | HTML 17 Nov 2021
Application note Driving PWM Loads with TI High-Side Switches PDF | HTML 02 Mar 2021
Functional safety information TPS1HB50-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 11 Jan 2021
Application note Fault and Normal Diagnostic Considerations for Smart High Side Switches PDF | HTML 10 Jul 2020
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

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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 (...)
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Simulation model

TPS1HB50A-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD34A.ZIP (103 KB) - PSpice Model
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Simulation model

TPS1HB50B-Q1 PSPICE TRANSIENT UNENCRYPTED MODEL PACKAGE (Rev. A)

SLVMD35A.ZIP (103 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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