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TPS27081A

現行

具可調式上升時間的 8-V、3-A、44-mΩ 負載開關

立即訂購
產品規格表

TPS27081A

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vin (min) (V) 1.2 Vin (max) (V) 8 Imax (A) 3 Ron (typ) (mΩ) 32 Shutdown current (ISD) (typ) (µA) 0.03 Quiescent current (Iq) (typ) (µA) 0.03 Soft start Adjustable Rise Time Current limit type None Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Inrush current control
Number of channels 1 Vin (min) (V) 1.2 Vin (max) (V) 8 Imax (A) 3 Ron (typ) (mΩ) 32 Shutdown current (ISD) (typ) (µA) 0.03 Quiescent current (Iq) (typ) (µA) 0.03 Soft start Adjustable Rise Time Current limit type None Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Inrush current control
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Low ON-Resistance, High-Current PFET
    • RDS(on) = 32 mΩ at VGS = –4.5 V
    • RDS(on) = 44 mΩ at VGS = –3 V
    • RDS(on) = 82 mΩ at VGS = –1.8 V
    • RDS(on) = 93 mΩ at VGS = –1.5 V
    • RDS(on) = 155 mΩ at VGS = –1.2 V
  • Adjustable Turnon and Turnoff Slew Rate Control
    Through External R1, R2, and C1
  • Supports a Wide Range of 1.2-V to 8-V Supply
    Inputs
  • Integrated NMOS for PFET Control
  • NMOS ON/OFF Supports a Wide Range of 1-V to
    8-V Control Logic Interface
  • Full ESD Protection (All Pins)
    • HBM 2 kV, CDM 500 V
  • Ultra-Low Leakage Current in Standby (Typical
    100 nA)
  • Available in Tiny 6-Pin Package
    • 2.9 mm × 2.8 mm × 0.75 mm SOT (DDC)
  • Low ON-Resistance, High-Current PFET
    • RDS(on) = 32 mΩ at VGS = –4.5 V
    • RDS(on) = 44 mΩ at VGS = –3 V
    • RDS(on) = 82 mΩ at VGS = –1.8 V
    • RDS(on) = 93 mΩ at VGS = –1.5 V
    • RDS(on) = 155 mΩ at VGS = –1.2 V
  • Adjustable Turnon and Turnoff Slew Rate Control
    Through External R1, R2, and C1
  • Supports a Wide Range of 1.2-V to 8-V Supply
    Inputs
  • Integrated NMOS for PFET Control
  • NMOS ON/OFF Supports a Wide Range of 1-V to
    8-V Control Logic Interface
  • Full ESD Protection (All Pins)
    • HBM 2 kV, CDM 500 V
  • Ultra-Low Leakage Current in Standby (Typical
    100 nA)
  • Available in Tiny 6-Pin Package
    • 2.9 mm × 2.8 mm × 0.75 mm SOT (DDC)

The TPS27081A device is a high-side load switch that integrates a Power PFET and a Control NFET in a tiny package.

The TPS27081A features industry-standard ESD protection on all pins providing better ESD compatibility with other onboard components.

The TPS27081A level shifts ON/OFF logic signal to VIN levels and supports as low as 1-V CPU or MCU logic to control higher voltage power supplies without requiring an external level-shifter.

Switching a large value output capacitor CL through a fast ON/OFF logic signal may result in an excessive inrush current. To control the load inrush current, connect a resistor R2 and add an external capacitor C1 as shown in the Simplified Schematic. To configure the TPS27081A to achieve a specific slew rate, refer to the Application and Implementation section.

A single pullup resistor R1 is required in standby power switch applications. In such applications connect the R2 pin of the TPS27081A to the system ground when inrush current control is not required.

The TPS27081A device is a high-side load switch that integrates a Power PFET and a Control NFET in a tiny package.

The TPS27081A features industry-standard ESD protection on all pins providing better ESD compatibility with other onboard components.

The TPS27081A level shifts ON/OFF logic signal to VIN levels and supports as low as 1-V CPU or MCU logic to control higher voltage power supplies without requiring an external level-shifter.

Switching a large value output capacitor CL through a fast ON/OFF logic signal may result in an excessive inrush current. To control the load inrush current, connect a resistor R2 and add an external capacitor C1 as shown in the Simplified Schematic. To configure the TPS27081A to achieve a specific slew rate, refer to the Application and Implementation section.

A single pullup resistor R1 is required in standby power switch applications. In such applications connect the R2 pin of the TPS27081A to the system ground when inrush current control is not required.
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技術文件

star =TI 所選的此產品重要文件
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類型 標題 日期
* Data sheet TPS27081A 1.2-V to 8-V, 3-A PFET High-Side Load Switch With Level Shift and Adjustable Slew Rate Control datasheet (Rev. E) PDF | HTML 2015年 6月 30日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application note Load Switch Thermal Considerations (Rev. A) 2018年 10月 11日
Application note Basics of Load Switches (Rev. A) 2018年 9月 5日
Application note Selecting a Load Switch to Replace a Discrete Solution 2017年 4月 30日
Application note Timing of Load Switches 2017年 4月 27日
Application note Managing Inrush Current (Rev. A) 2015年 5月 28日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

TPS27081A TINA-TI Reference Design (Rev. A)

SLVMBC9A.TSC (145 KB) - TINA-TI Reference Design
下載
模擬型號

TPS27081A TINA-TI Transient Spice Model (Rev. A)

SLVMBD0A.ZIP (16 KB) - TINA-TI Spice Model
下載
模擬型號

TPS27081A Unencrypted PSpice Transient Model Package (Rev. A)

SLVMBG5A.ZIP (81 KB) - PSpice Model
下載
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
要求
參考設計

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Design guide: PDF
電路圖: PDF
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電路圖: PDF
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TIDA-01358 — 適用於智慧空調、具有寬輸入電壓轉換器和備用電池的 24V AC 功率級參考設計

The TIDA-01358 reference design provides a low BOM cost, high efficiency power stage solution for smart thermostats and other gateway building automation end equipment. This power stage takes a 24Vac input and produces a 5V and 3.3V output rail which can power additional point-of-load converters (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00670 — 低成本彈性電壓監控器和電池測試器參考設計

This is a low-cost, flexible voltage supervisor that uses a voltage reference in order to test the voltage of a battery. This solution can also be used as a voltage rail monitor for many applications that require accurate power delivery with multiple rails. With TI's ultra-low power voltage (...)
Design guide: PDF
電路圖: PDF
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SOT-23-THN (DDC) 6 Ultra Librarian
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  • 產品標記
  • 鉛塗層/球物料
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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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