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線性與低壓差 (LDO) 穩壓器

TPS7A4001

現行

具啟用功能的 50-mA、100-V、低 IQ、可調整低壓降電壓穩壓器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS7A43 現行 具電源良好與精密啟用功能的 50-mA、85-V、超低 IQ、雙路低壓差電壓穩壓器 Alternative option with lower IQ.
功能與所比較的裝置相似
TPS7A19 現行 具有電源良好與啟用功能的 450-mA、40-V、低 IQ、可調整低壓差電壓穩壓器 Wide-input-voltage (40-V) LDO regulator with a higher current rating.

TPS7A4001

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 0.05 Vin (max) (V) 100 Vin (min) (V) 7 Vout (max) (V) 90 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.02 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 2.5 Dropout voltage (Vdo) (typ) (mV) 290 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.05 Vin (max) (V) 100 Vin (min) (V) 7 Vout (max) (V) 90 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.02 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 2.5 Dropout voltage (Vdo) (typ) (mV) 290 Operating temperature range (°C) -40 to 125
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Very High Maximum Input Voltage: 100 V
  • Wide Input Voltage Range: 7 to 100 V
  • Accuracy:
    • Nominal: 1%
    • Over Line, Load, and Temperature: 2.5%
  • Low Quiescent Current: 25 µA
  • Quiescent Current at Shutdown: 4.1 µA
  • Maximum Output Current: 50 mA
  • CMOS Logic-Level-Compatible Enable Pin
  • Adjustable Output Voltage from about 1.175 to
    90 V
  • Stable With Ceramic Capacitors:
    • Input Capacitance: ≥ 1 µF
    • Output Capacitance: ≥ 4.7 µF
  • Dropout Voltage: 290 mV
  • Built-In Current Limit and Thermal Shutdown
    Protection
  • Package: High Thermal Performance HVSSOP
    PowerPAD™
  • Operating Temperature Range: –40°C to 125°C
  • Very High Maximum Input Voltage: 100 V
  • Wide Input Voltage Range: 7 to 100 V
  • Accuracy:
    • Nominal: 1%
    • Over Line, Load, and Temperature: 2.5%
  • Low Quiescent Current: 25 µA
  • Quiescent Current at Shutdown: 4.1 µA
  • Maximum Output Current: 50 mA
  • CMOS Logic-Level-Compatible Enable Pin
  • Adjustable Output Voltage from about 1.175 to
    90 V
  • Stable With Ceramic Capacitors:
    • Input Capacitance: ≥ 1 µF
    • Output Capacitance: ≥ 4.7 µF
  • Dropout Voltage: 290 mV
  • Built-In Current Limit and Thermal Shutdown
    Protection
  • Package: High Thermal Performance HVSSOP
    PowerPAD™
  • Operating Temperature Range: –40°C to 125°C

The TPS7A4001 device is a very high voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (HVSSOP), and is able to withstand continuous DC or transient input voltages of up to 100 V.

The TPS7A4001 device is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 &mocro;F (over temperature and tolerance). Therefore, implementations of this device require minimal board space because of its miniaturized packaging (HVSSOP) and a potentially small output capacitor. In addition, the TPS7A4001 device offers an enable pin (EN) compatible with standard CMOS logic to enable a low-current shutdown mode.

The TPS7A4001 device has an internal thermal shutdown and current limiting to protect the system during fault conditions. The HVSSOP packages has an operating temperature range of TJ = –40\xC2°C to 125°C.

In addition, the TPS7A4001 device is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only can it supply a well-regulated voltage rail, but it can also withstand and maintain regulation during very high and fast voltage transients. These features translate to simpler and more cost-effective electrical surge-protection circuitry for a wide range of applications, including PoE, bias supply, and LED lighting.

The TPS7A4001 device is a very high voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (HVSSOP), and is able to withstand continuous DC or transient input voltages of up to 100 V.

The TPS7A4001 device is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 &mocro;F (over temperature and tolerance). Therefore, implementations of this device require minimal board space because of its miniaturized packaging (HVSSOP) and a potentially small output capacitor. In addition, the TPS7A4001 device offers an enable pin (EN) compatible with standard CMOS logic to enable a low-current shutdown mode.

The TPS7A4001 device has an internal thermal shutdown and current limiting to protect the system during fault conditions. The HVSSOP packages has an operating temperature range of TJ = –40\xC2°C to 125°C.

In addition, the TPS7A4001 device is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only can it supply a well-regulated voltage rail, but it can also withstand and maintain regulation during very high and fast voltage transients. These features translate to simpler and more cost-effective electrical surge-protection circuitry for a wide range of applications, including PoE, bias supply, and LED lighting.
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技術文件

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類型 標題 日期
* Data sheet TPS7A4001 100-V Input Voltage, 50-mA, Very High Voltage Linear Regulator datasheet (Rev. B) PDF | HTML 2015年 7月 13日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Technical article Improving IC reliability for harsh design environments PDF | HTML 2018年 6月 11日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
White paper Powering sensors with LDOs for industrial process control white paper 2015年 2月 12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)。

開發板

DRV8805EVM — DRV8805 評估模組

The DRV8805 evaluation module consists of a quad low-side motor driver with built-in indexer control interface that can be used to drive a unipolar stepper motor in full-step, half-step or wave mode. With the DRV8805EVM, designers can quickly and easily evaluate the performance of DRV8805 motor (...)

使用指南: PDF
TI.com 無法提供
開發板

OPA547EVM — OPA547 評估模組

The OPA547EVM is a platform for evaluating the OPA547 in a variety of circuit configurations. Circuit configuations include inverting/non-inverting gain, single/dual power supply, internal/external load and external reference. Access is provided to the Enable/Shutdown pin and LED's provide visual (...)

使用指南: PDF
TI.com 無法提供
開發板

PSEMTHR24EVM-081 — 適用於 24 埠 IEEE 802.3bt 就緒 PSE 系統的主機板

PSEMTHR24EVM-081 是 TPS23881 和 TPS23882 PSE 控制器的基板。此電路板包含 24 組 2 對 / 4 對埠，可用於為 IEEE 802.3at 應用傳送高達 30W/埠的功率，以及為 IEEE 802.3bt 應用傳送高達 90W/埠的功率。

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開發板

TPS7A4001EVM-709 — TPS7A4001 低壓差 (LDO) 線性穩壓器評估模組

The TPS7A4001EVM is a fully assembled and tested circuit for evaluating the TPS7A4001 50mA, 100V input, single output low-dropout linear regulator in a DGN (1.0mm x 1.0mm) package. The TPS7A4001EVM provides an adjustable, regulated output voltage that is factory set to 3.3V.
使用指南: PDF
TI.com 無法提供
模擬型號

TPS7A4001 TINA-TI Transient Reference Design (Rev. A)

SBVM143A.TSC (91 KB) - TINA-TI Reference Design
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模擬型號

TPS7A4001 TINA-TI Transient Spice Model (Rev. A)

SBVM142A.TSM (7 KB) - TINA-TI Spice Model
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模擬型號

TPS7A4001 Transient PSpice Model (Rev. B)

SLVM135B.ZIP (23 KB) - PSpice Model
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參考設計

TIDA-010046 — 配備 IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD 且符合 EMC 規範的 10/100-Mbps 乙太網路 PHY 參考設計

此參考設計使用低功耗乙太網路實體層 (PHY) DP83825 最佳化爲 10 至 100 Mbps，支援超過 CAT5e 電纜的 150 公尺長範圍，超出了 100 公尺 (328 英尺) 的標準乙太網路距離限制。此設計包含乙太網路纜線供電，並使用 IEEE802.3at Type-1 (13 W) PoE-PD TPS23755 裝置進行數據通訊，而此裝置具有整合式一次側穩壓返馳 DC/DC 控制器。此參考設計預先符合輻射放射、ESD 及 EFT 的測試規範。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-050026-23881 — 適合多埠應用的 24 埠 (PoE 2、4 對) 電源設備參考設計

此參考設計展示了適合乙太網路供電 (PoE) 應用的 Type-4 (PoE 2，4 對) 24 埠乙太網路交換器，其針對 IEEE 802.3bt (PoE 2) 應用，每埠可傳送高達 90W，而針對非標準應用，則每埠最高可傳送 120W。適用於此設計的 FirmPSE 系統軟體以 MSP430F523x 系列為基礎，透過與系統即時通訊和韌體自訂，縮減上市時間並釋放寶貴的軟體資源。此設計支援優先級電源管理、多電源供應器、舊版 PD 偵測、現場可升級性、與主機的 UART/I2C 通訊等。此外，其中兩種設計可透過邊緣連接器串聯，以支援多達 48 埠的 PSE 系統。

所需硬體清單

Design guide: PDF
電路圖: PDF
參考設計

TIDA-050026-23882 — 適合多埠應用的 24 埠 (PoE 2、2 對) 電源設備參考設計；

此參考設計展示了適合乙太網路供電 (PoE) 應用的 Type-3、30W、2 對 24 埠乙太網路交換器，其針對 IEEE 802.3bt Type 3 應用，每埠可傳送高達 30W，而針對非標準應用，則每埠最高可傳送 60W。以 MSP430F523x 系列為基礎，TI 的 TPS2388x FirmPSE 系統韌體提供用於多埠應用的整體系統級解決方案，減少上市時間並釋放寶貴的軟體資源。此設計支援優先級連接埠電源管理、多電源供應器、舊版 PD 偵測、現場可升級性、與主機的 UART/I2C 通訊等。此設計的 TI FirmPSE 系統韌體 GUI 只需按幾下按鈕，就能自訂生產等級 PSE (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00465 — 單連接埠、乙太網路供電、第 2 類自動模式 PSE 參考設計

TIDA-00465 is an application using TPS23861 as a single port, type 2, PoE auto-mode PSE in a small form factor. The design will inject power onto any Ethernet cable for PoE powered loads up to 30W.
Test report: PDF
電路圖: PDF
參考設計

PMP20588 — 全自主式單埠第 2 類 (30W) PoE PSE 參考設計

The PMP20588 reference design utilizes the TPS23861 PSE controller to implement a single port Type 2 PoE PSE.  An isolated flyback converter, utilizing the LM5022 current mode PWM controller, accepts a 12Vdc/24Vac input and provides a 55Vdc/600mA output source for the PSE.  It is ideally (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-00483 — 採用單電流迴路和 FSK 調變的雙路感測器量測參考設計

The TIDA-00483 reference design demonstrates a 4-20mA current loop subsystem capable of measuring the surrounding environment and communicating the temperature, humidity, and ambient light over the loop. The small footprint of the design contains all sensors, filters, and control circuitry to (...)
Design guide: PDF
電路圖: PDF
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