Product details

Imax (A) 10 Current limit (Min) (A) 20 Current limit (Max) (A) 20 Current limit type Fixed Current limit accuracy +25/-25% Current sense accuracy +5/-5% @ 0.78A Features Current sense output, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Rating Catalog
Imax (A) 10 Current limit (Min) (A) 20 Current limit (Max) (A) 20 Current limit type Fixed Current limit accuracy +25/-25% Current sense accuracy +5/-5% @ 0.78A Features Current sense output, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Rating Catalog
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Single-channel smart high-side switch with a typical 9-mΩ RON (TJ = 25°C)
  • Improve reliability through overcurrent protection:
    • Current limit threshold nominally at 20 A
    • Current limiting (clamping) on reaching the threshold
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground and supply
    • Automatic FET switch-on during reverse supply
    • Automatic shut off if loss of supply and ground occurs
    • Integrated output clamp to demagnetize inductive loads
    • Configurable fault handling
  • Analog sense output can be configured to accurately measure:
    • Load current
    • Supply voltage
    • Device temperature
  • Provides FLT indication back to MCU
    • Detection of open load in off-state and short-to-GND
  • Single-channel smart high-side switch with a typical 9-mΩ RON (TJ = 25°C)
  • Improve reliability through overcurrent protection:
    • Current limit threshold nominally at 20 A
    • Current limiting (clamping) on reaching the threshold
  • Robust integrated output protection:
    • Integrated thermal protection
    • Protection against short to ground and supply
    • Automatic FET switch-on during reverse supply
    • Automatic shut off if loss of supply and ground occurs
    • Integrated output clamp to demagnetize inductive loads
    • Configurable fault handling
  • Analog sense output can be configured to accurately measure:
    • Load current
    • Supply voltage
    • Device temperature
  • Provides FLT indication back to MCU
    • Detection of open load in off-state and short-to-GND

The TPS27SA08 device is a single-channel smart high-side switch intended for use with 24-V supply systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits. The device protects against faults through a reliable current limit, which, depending on device variant, can be configured to react to an overcurrent event by either instantly turning the switch off or by regulating the output current at the set point (nominally 20 A). The TPS27SA08 device also provides a high accuracy analog current sense that allows for improved diagnostics when driving varied load profiles. By reporting load current, device temperature, and supply voltage to a system MCU, the device enables predictive maintenance and load diagnostics that lengthen the system lifetime.

The TPS27SA08 device is available in a small 16-pin HTSSOP package which allows for reduced PCB footprint.

The TPS27SA08 device is a single-channel smart high-side switch intended for use with 24-V supply systems. The device integrates robust protection and diagnostic features to ensure output port protection even during harmful events like short circuits. The device protects against faults through a reliable current limit, which, depending on device variant, can be configured to react to an overcurrent event by either instantly turning the switch off or by regulating the output current at the set point (nominally 20 A). The TPS27SA08 device also provides a high accuracy analog current sense that allows for improved diagnostics when driving varied load profiles. By reporting load current, device temperature, and supply voltage to a system MCU, the device enables predictive maintenance and load diagnostics that lengthen the system lifetime.

The TPS27SA08 device is available in a small 16-pin HTSSOP package which allows for reduced PCB footprint.

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Technical documentation

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Type Title Date
* Data sheet TPS27SA08 36-V, 10-A, Single-Channel Smart High Side Switch datasheet 04 Nov 2020
Technical article Bulk up your 24-VDC power distribution with industrial high-side switches 04 May 2021
User guide High Side Switch Motherboard Evaluation Module (Rev. B) 29 Oct 2020

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 (...)
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Simulation model

TPS27SA08C PSpice Transient Model

SLVMDF5.ZIP (127 KB) - PSpice Model
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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