TPS272C45

現行

具有可調整電流限制的 36-V、45-mΩ、3-A、2 通道、工業高壓側開關

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產品規格表

document-pdfAcrobat TPS272C45 45-mΩ, Dual-Channel Smart High-Side Switch With Diagnostics datasheet (Rev. C) (英文) PDF | HTML

TPS272C45

現行

立即訂購

產品詳細資料

Number of channels

2

Rating

Catalog

Operating voltage (max) (V)

36

Operating voltage (min) (V)

6

Ron (typ) (mΩ)

45

Imax (A)

3

Current limit (max) (A)

5.8

Current limit (min) (A)

0.7

Current limit type

Adjustable

FET

Internal

Features

Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out

TI functional safety category

Functional Safety-Capable

Current limit accuracy

+25/-25%

Current sense accuracy

+4/-4% @1A

Operating temperature range (°C)

-40 to 125

Function

Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown

Number of channels

2

Rating

Catalog

Operating voltage (max) (V)

36

Operating voltage (min) (V)

6

Ron (typ) (mΩ)

45

Imax (A)

3

Current limit (max) (A)

5.8

Current limit (min) (A)

0.7

Current limit type

Adjustable

FET

Internal

Features

Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out

TI functional safety category

Functional Safety-Capable

Current limit accuracy

+25/-25%

Current sense accuracy

+4/-4% @1A

Operating temperature range (°C)

-40 to 125

Function

Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown

VQFN (RHF)

24

20 mm² (5 mm × 4 mm)

Low R DS(on) (45-mΩ typical) high-side switch for 24-V industrial applications
Wide DC operating voltage range: 6 V to 36 V
Low quiescent current (Iq) of 0.5 mA per channel (typical) from 24-V supply
Fixed (5.8 A) and adjustable (0.7 A to 4 A with external resistor) current limiting
Drive inductive, capacitive, and resistive loads
- Integrated output clamp to support inductive load discharge
- Capacitive load drive minimizing peak inrush current through dual threshold current limiting
Robust output protection
- Thermal shutdown
- Protection against short to ground events
- Configurable fault handling
Enhanced diagnostic feature
- Output load current measurement
- Open load (off-state) detection
Package: 24-pin QFN (5 mm × 4 mm)
UL 2367 Recognized
- File No. 169910
Functional Safety-Capable
- Documentation available to aid functional safety system design

Low R DS(on) (45-mΩ typical) high-side switch for 24-V industrial applications
Wide DC operating voltage range: 6 V to 36 V
Low quiescent current (Iq) of 0.5 mA per channel (typical) from 24-V supply
Fixed (5.8 A) and adjustable (0.7 A to 4 A with external resistor) current limiting
Drive inductive, capacitive, and resistive loads
- Integrated output clamp to support inductive load discharge
- Capacitive load drive minimizing peak inrush current through dual threshold current limiting
Robust output protection
- Thermal shutdown
- Protection against short to ground events
- Configurable fault handling
Enhanced diagnostic feature
- Output load current measurement
- Open load (off-state) detection
Package: 24-pin QFN (5 mm × 4 mm)
UL 2367 Recognized
- File No. 169910
Functional Safety-Capable
- Documentation available to aid functional safety system design

The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device provides an additional low voltage supply (3.3 V to 5 V) input pin to minimize no-load power dissipation. The device integrates protection features such as thermal shut down, output clamp, and overcurrent limit. These features improve system robustness during fault events such as short circuit.

The TPS272C45 device implements an adjustable threshold current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also implements a configurable inrush current time period with a higher level of allowed current to drive high inrush current loads like lamps or for fast charging of capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics enabling better predictive maintenance.

The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.

The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device provides an additional low voltage supply (3.3 V to 5 V) input pin to minimize no-load power dissipation. The device integrates protection features such as thermal shut down, output clamp, and overcurrent limit. These features improve system robustness during fault events such as short circuit.

The TPS272C45 device implements an adjustable threshold current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also implements a configurable inrush current time period with a higher level of allowed current to drive high inrush current loads like lamps or for fast charging of capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics enabling better predictive maintenance.

The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.

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技術文件

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重要文件	類型	標題	格式選項
*	資料表	TPS272C45 45-mΩ, Dual-Channel Smart High-Side Switch With Diagnostics datasheet (Rev. C)	PDF \| HTML	2023/5/9
	應用說明	Basics of High-Side Switches and Controllers	PDF \| HTML	2026/3/31
	Application brief	Faster Switching of Large Inductive Loads in Digital Output Modules	PDF \| HTML	2022/7/15
	Application brief	High-Side Switch Open-Load Detection in ON-State	PDF \| HTML	2022/7/5
	Application brief	Implementation of Test Pulses in Digital Output Modules	PDF \| HTML	2022/3/4
	應用說明	Using TPS272C45C High-Side Switch with 60-V Tolerance, Surge, and Inductive Load	PDF \| HTML	2022/2/11
	功能安全資訊	TPS272C45 Functional Safety FIT Rate, FMD and Pin FMA	PDF \| HTML	2021/12/8
	應用說明	Common Application Use Cases for the TPS272C45 Smart Industrial High Side Switch	PDF \| HTML	2021/6/30
	應用說明	Enabling SPI Communication Using TI's Smart High Side Switches (Rev. A)	PDF \| HTML	2021/5/11
	技術文章	Bulk up your 24-VDC power distribution with industrial high-side switches	PDF \| HTML	2021/5/4
	Application brief	TPS272C45 Enables Smart Power Management of Remote I/Os	PDF \| HTML	2020/12/17

設計與開發

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開發板

TPS272C45EVM — 適用於 45-mΩ、4-A 雙通道工業智慧型高壓側開關的 TPS272C45 評估模組

TPS272C45 評估模組 (EVM) 可示範和展示下方 TPS272C45 工業高壓側開關的所有功能。此評估板提供一種簡單的方式，可將一組電源供應器連接至 TPS272C45 的輸入、將負載連接至輸出，並使用晶片本身的控制接腳開啟和關閉裝置。EVM 隨附板載 3.3-V LDO，可簡化發送至 TPS272C45 的控制訊號，並透過使用一組外部硬體跨接器輕鬆讓邏輯訊號有效/無效。此外，此 EVM 還包括 BoosterPack™ 外掛模組接頭，讓使用者可將 TPS272C45 高壓側開關流暢連接至底層微控制器，並寫入軟體以控制和配置裝置。

使用指南: PDF | HTML

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