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TPS482H85-Q1

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汽车级 48V、85mΩ 双通道智能高侧开关

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TPS482H85-Q1

正在供货
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产品详情

Number of channels 2 Rating Automotive Operating voltage (max) (V) 58 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 85 Imax (A) 2.2 Current limit (max) (A) 10.5 Current limit (min) (A) 0.8 Current limit type Adjustable 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 TI functional safety category Functional Safety-Capable Current limit accuracy +/- 15% @ 0.5A 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
Number of channels 2 Rating Automotive Operating voltage (max) (V) 58 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 85 Imax (A) 2.2 Current limit (max) (A) 10.5 Current limit (min) (A) 0.8 Current limit type Adjustable 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 TI functional safety category Functional Safety-Capable Current limit accuracy +/- 15% @ 0.5A 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
VQFN-HR (CHU) 12 10.5 mm² (3 mm × 3.5 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Functional safety capable
  • Dual-channel 85mΩ smart high-side switch with full diagnostics
  • Wide operating voltage: 6V to 58V
  • Ultra-low standby current, < 2µA per channel
  • High-accuracy current sense: < ±10% for > 50mA
  • Selectable current limit levels with external resistor
  • Protection features:
    • Short-to-GND protection by current limit
    • Absolute and relative thermal shutdown
    • Inductive Load negative voltage clamp with optimized slew rate
    • Loss-of-ground, loss-of-battery, and reverse battery protection
  • Diagnostics features:
    • Overcurrent and short-to-ground detection
    • Open-load and short-to-battery detection
    • Accurate current sense
  • 3.5mm × 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
  • Functional safety capable
  • Dual-channel 85mΩ smart high-side switch with full diagnostics
  • Wide operating voltage: 6V to 58V
  • Ultra-low standby current, < 2µA per channel
  • High-accuracy current sense: < ±10% for > 50mA
  • Selectable current limit levels with external resistor
  • Protection features:
    • Short-to-GND protection by current limit
    • Absolute and relative thermal shutdown
    • Inductive Load negative voltage clamp with optimized slew rate
    • Loss-of-ground, loss-of-battery, and reverse battery protection
  • Diagnostics features:
    • Overcurrent and short-to-ground detection
    • Open-load and short-to-battery detection
    • Accurate current sense
  • 3.5mm × 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 systems. The low RON minimizes the device power dissipation when driving a wide range of output load current up to 2.2A when both channels are enabled or 3A when only one channel is enabled. Protection and diagnostic features include accurate current sense, selectable current limit levels, OFF-state open-load, short-to-battery detection, output clamp, and thermal shutdown.

The device provides an accurate load current sense that allows for improved load diagnostics such as overload and open-load detection, which enables better predictive maintenance, without further calibration. The device also implements a selectable current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. 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 systems. The low RON minimizes the device power dissipation when driving a wide range of output load current up to 2.2A when both channels are enabled or 3A when only one channel is enabled. Protection and diagnostic features include accurate current sense, selectable current limit levels, OFF-state open-load, short-to-battery detection, output clamp, and thermal shutdown.

The device provides an accurate load current sense that allows for improved load diagnostics such as overload and open-load detection, which enables better predictive maintenance, without further calibration. The device also implements a selectable current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. 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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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
应用手册 高侧开关及控制器基础知识 PDF | HTML PDF | HTML 2026-4-10
应用手册 利用智能高侧开关为电容负载充电 PDF | HTML 英语版 PDF | HTML 2025-11-7
功能安全信息 TPS482H85-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025-9-17
证书 TPS482H85EVM EU Declaration of Conformity (DoC) 2025-2-24

设计与开发

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评估板

TPS482H85EVM — 适用于 48V 高侧开关 TPS482H85-Q1 的 TPS482H85EVM 评估模块

TPS482H85EVM 是一款硬件评估模块 (EVM)，旨在帮助硬件工程师评估 TPS482H85-Q1 汽车高侧开关的完整性能和功能。此 EVM 提供无缝连接方案：可将电源连接到 TPS482H85-Q1 的输入端，将负载连接到输出通道，还可使用芯片自身的控制引脚打开或关闭该器件。该器件集成了多种保护功能，如热关断、输出钳位和电流限制。
用户指南: PDF | HTML
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参考设计

TIDA-020094 — 48V 区域参考设计

本参考设计展示了先进汽车级 48V 低电压电源轨架构的趋势。该设计包括 48V 主干架构及 48V 至 12V 电源转换。本参考设计重点介绍主要产品中的 48V 负载驱动器。这些产品包括高侧开关 (HSS) 和控制器 (HSSC)、智能电子保险丝及电机驱动器 (MD)。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VQFN-HR (CHU) 12 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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