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TPS482H85-Q1

現行

車用 48V、85-mΩ 雙通道智慧型高壓側開關

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產品規格表

TPS482H85-Q1

現行
產品規格表 立即訂購

產品詳細資料

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 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
  • 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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重要文件 類型 標題 格式選項 日期
* Data sheet TPS482H85-Q1: 48V, 85mΩ Automotive Dual-Channel Smart High-Side Switch datasheet (Rev. B) PDF | HTML 2026年 2月 13日
Functional safety information TPS482H85-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025年 9月 17日
Application note Charging Capacitive Loads with Smart High-Side Switches PDF | HTML 2025年 9月 12日
Certificate TPS482H85EVM EU Declaration of Conformity (DoC) 2025年 2月 24日

設計與開發

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開發板

TPS482H85EVM — 適用於 48V 高壓側交換器 TPS482H85-Q1 的 TPS482H85EVM 評估模組

TPS482H85EVM 是硬體評估模組 (EVM)，可用於讓硬體工程師評估 TPS482H85-Q1 車用高壓側開關的完整性能與功能。此評估板提供可順暢地將電源供應器連接至 TPS482H85-Q1 輸入、將負載連接至輸出通道的方式，以及可順暢使用晶片本身的控制針腳來開啟和關閉裝置的方式。此裝置整合了過熱自動關機、輸出箝位與電流限制等保護功能。
使用指南: PDF | HTML
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參考設計

TIDA-020094 — 48V 區域參考設計

此參考設計展示了進階車用 48V 低電壓軌架構的趨勢。此設計包括 48V 骨幹架構和 48V 至 12V 電源轉換。參考設計重點介紹關鍵產品的 48V 負載驅動器。這些產品包括高壓側開關 (HSS) 和控制器 (HSSC)、智慧 eFuse 和馬達驅動器 (MD)。
Design guide: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (CHU) 12 Ultra Librarian
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  • 認證摘要
  • 進行中的可靠性監測
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