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Product details

Parameters

Current limit (Min) (A) 6.4 Driver configuration High Side Current limit type Adjustable Current limit accuracy +25%/-36% HBM ESD (kV) 2 Current sense accuracy +5/-5% @ 1A Features Current sense output, Current sense/monitor, Programmable current limit, Thermal shutdown, Under voltage lock out open-in-new Find other High-side switches

Package | Pins | Size

HTSSOP (PWP) 16 32 mm² 5 x 6.4 open-in-new Find other High-side switches

Features

  • 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
open-in-new Find other High-side switches

Description

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) Jan. 15, 2020
Application note Driving PWM Loads with TI High-Side Switches Mar. 02, 2021
Functional safety information TPS1HB08-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Jan. 11, 2021
Functional safety information TPS1HB08-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 16, 2019
Application note High Accuracy Current Sense of Smart High Side Switches Nov. 01, 2019
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
High side switches motherboard
HSS-MOTHERBOARDEVM
document-generic User guide
49
Description
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 (...)
Features
  • Single or dual-channel high-side power switch, tested according to AECQ100-12
  • High-accuracy current sense
  • Reverse battery protection with external ground network
  • Short circuit and overvoltage protection
  • Themal shudown and thermal swing self-recovery

Design tools & simulation

SIMULATION MODEL Download
SLVMD25E.ZIP (136 KB) - PSpice Model
SIMULATION MODEL Download
SLVMD26B.ZIP (159 KB) - PSpice Model
SIMULATION MODEL Download
SLVMD27B.ZIP (131 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
SLVRBG2B.ZIP (21 KB)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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