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TPS482H85-Q1

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Automotive, 48V, 85-mΩ dual-channel smart high-side switch

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Data sheet

TPS482H85-Q1

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Data sheet Order now

Product details

Number of channels 2 Operating voltage (max) (V) 58 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 85 Imax (A) 2.2 Current limit (min) (A) 0.8 Current limit (max) (A) 10.5 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +/- 15% @ 0.5A FET Internal Features Adjustable current limit, Automotive load dump, Current sense output, Fault reporting, Inductive load, Inrush current control, Short circuit protection, 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) 58 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 85 Imax (A) 2.2 Current limit (min) (A) 0.8 Current limit (max) (A) 10.5 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +/- 15% @ 0.5A FET Internal Features Adjustable current limit, Automotive load dump, Current sense output, Fault reporting, Inductive load, Inrush current control, Short circuit protection, 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
VQFN-HR (CHU) 12 10.5 mm² 3 x 3.5
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H3A
    • Device CDM ESD classification level C4B
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Dual-channel 85-mΩ smart high-side switch with full diagnostics
  • Wide operating voltage 6 V to 58 V
  • Ultra-low standby current, < 2 µA per channel
  • High-accuracy current sense: ±15% under > 50-mA load
  • Selectable current limit levels with external resistor, ±15% accuracy at 2A load
  • Protection
    • Short-to-GND Protection by current limit (internal or external)
    • Absolute and relative thermal shutdown
    • Inductive Load negative voltage clamp with optimized slew rate
    • Loss-of-GND and loss-of-battery protection
  • Diagnostics
    • Overcurrent and short-to-ground detection
    • Open-Load and short-to-battery detection
    • Accurate current sense
  • 3.5mm x 3mm small form factor 12-pin QFN package
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H3A
    • Device CDM ESD classification level C4B
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Dual-channel 85-mΩ smart high-side switch with full diagnostics
  • Wide operating voltage 6 V to 58 V
  • Ultra-low standby current, < 2 µA per channel
  • High-accuracy current sense: ±15% under > 50-mA load
  • Selectable current limit levels with external resistor, ±15% accuracy at 2A load
  • Protection
    • Short-to-GND Protection by current limit (internal or external)
    • Absolute and relative thermal shutdown
    • Inductive Load negative voltage clamp with optimized slew rate
    • Loss-of-GND and loss-of-battery protection
  • Diagnostics
    • Overcurrent and short-to-ground detection
    • Open-Load and short-to-battery detection
    • Accurate current sense
  • 3.5mm x 3mm small form factor 12-pin QFN package

The TPS4H82H85-Q1 device is fully protected dual-channel smart high-side switch with two integrated 85mΩ NMOS power FETs intended for 24V and 48V automotive supply systems. Protection and diagnostic features include accurate current sense, selectable current limit levels, OFF-state open-load and short-to-battery detection and thermal shutdown.

High-accuracy current sensing provides a better realtime monitoring effect and more accurate diagnostics without further calibration. The external selectable-level high-accuracy current limit allows setting the current limit value by application. The device highly improves the reliability of the system by effectively clamping the inrush current under start-up or short-circuit conditions. The TPS4H82H85-Q1 device can be used as a high-side power switch for a wide variety of resistive, inductive, and capacitive loads, including low-wattage bulbs, LEDs, relays, solenoids, and heaters.

The TPS4H82H85-Q1 device is fully protected dual-channel smart high-side switch with two integrated 85mΩ NMOS power FETs intended for 24V and 48V automotive supply systems. Protection and diagnostic features include accurate current sense, selectable current limit levels, OFF-state open-load and short-to-battery detection and thermal shutdown.

High-accuracy current sensing provides a better realtime monitoring effect and more accurate diagnostics without further calibration. The external selectable-level high-accuracy current limit allows setting the current limit value by application. The device highly improves the reliability of the system by effectively clamping the inrush current under start-up or short-circuit conditions. The TPS4H82H85-Q1 device can be used as a high-side power switch for a wide variety of resistive, inductive, and capacitive loads, including low-wattage bulbs, LEDs, relays, solenoids, and heaters.
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Technical documentation

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* Data sheet TPS482H85-Q1 48V, 85mΩ Dual-Channel Smart High-Side Switch datasheet PDF | HTML 21 Mar 2025
EVM User's guide TPS482H85-Q1 Evaluation Module PDF | HTML 14 Mar 2025
Certificate TPS482H85EVM EU Declaration of Conformity (DoC) 24 Feb 2025

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Evaluation board

TPS482H85EVM — TPS482H85EVM evaluation module for 48V high-side switch TPS482H85-Q1

The TPS482H85EVM is a hardware evaluation module (EVM) used to enable hardware engineers to evaluate the full performance and functionality of the TPS482H85-Q1 automotive high-side switch. This EVM provides a seamless way to connect a power supply to the inputs of the TPS482H85-Q1, connect a load (...)
User guide: PDF | HTML
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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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VQFN-HR (CHU) 12 Ultra Librarian
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