首頁 電源管理 線性與低壓差 (LDO) 穩壓器
首頁
電源管理
線性與低壓差 (LDO) 穩壓器

TPS7B7702-Q1

現行

汽車 300-mA、無電池 (40-V)、雙通道可調整天線低壓差電壓穩壓器

立即訂購
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，但針腳輸出與所比較的裝置不同。
最新 TPS7B7802-Q1 現行 具有 I2C 介面的車用 40V 雙通道天線 LDO TPS7B7802-Q1 offers Diagnostic capabilities using I2C interface. It has a smaller package and integrated ADC.

TPS7B7702-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 4 Iout (max) (A) 0.3 Output options Adjustable Output Vout (max) (V) 20 Vout (min) (V) 1.5 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.6 Features Adjustable current limit, Current sense, Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Thermal resistance θJA (°C/W) 38.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 350 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 4 Iout (max) (A) 0.3 Output options Adjustable Output Vout (max) (V) 20 Vout (min) (V) 1.5 PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.6 Features Adjustable current limit, Current sense, Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Thermal resistance θJA (°C/W) 38.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 350 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 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
    • Device HBM ESD Classification 2
    • Device CDM ESD Classification C4B
  • Single and Dual-Channel LDO With Current Sense and Adjustable Current-Limit
  • 4.5-V to 40-V Wide Input Voltage Range, 45-V Load Dump
  • Power Switch Mode When Tying FB to GND
  • 1.5-V to 20-V Adjustable Output Voltage
  • Up to 300-mA Output Current per Channel
  • Adjustable Current-Limit With External Resistor
  • High Accuracy Current-Sense to Detect Antenna Open Condition at Low Current Without Further Calibration
  • High Power-Supply Rejection Ratio: Typical 73 dB at 100 Hz
  • Integrated Reverse-Polarity Protection, Down to –40 V and No Need for External Diode
  • 500-mV Max Dropout Voltage at 100-mA Load
  • Stable With Output Capacitor in 2.2-µF to 100-µF Range (ESR 1 mΩ to 5 Ω)
  • Integrated Protection and Diagnostics
    • Thermal Shutdown
    • Undervoltage Lockout (UVLO)
    • Short-Circuit Protection
    • Reverse Battery Polarity Protection
    • Reverse-Current Protection
    • Output Short-to-Battery Protection
    • Output Inductive Load Clamp
    • Multiplexing Current Sense Between Channels and Devices
    • Ability to Distinguish All Faults With Current Sense
  • 16-Pin HTSSOP PowerPAD™ 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
    • Device HBM ESD Classification 2
    • Device CDM ESD Classification C4B
  • Single and Dual-Channel LDO With Current Sense and Adjustable Current-Limit
  • 4.5-V to 40-V Wide Input Voltage Range, 45-V Load Dump
  • Power Switch Mode When Tying FB to GND
  • 1.5-V to 20-V Adjustable Output Voltage
  • Up to 300-mA Output Current per Channel
  • Adjustable Current-Limit With External Resistor
  • High Accuracy Current-Sense to Detect Antenna Open Condition at Low Current Without Further Calibration
  • High Power-Supply Rejection Ratio: Typical 73 dB at 100 Hz
  • Integrated Reverse-Polarity Protection, Down to –40 V and No Need for External Diode
  • 500-mV Max Dropout Voltage at 100-mA Load
  • Stable With Output Capacitor in 2.2-µF to 100-µF Range (ESR 1 mΩ to 5 Ω)
  • Integrated Protection and Diagnostics
    • Thermal Shutdown
    • Undervoltage Lockout (UVLO)
    • Short-Circuit Protection
    • Reverse Battery Polarity Protection
    • Reverse-Current Protection
    • Output Short-to-Battery Protection
    • Output Inductive Load Clamp
    • Multiplexing Current Sense Between Channels and Devices
    • Ability to Distinguish All Faults With Current Sense
  • 16-Pin HTSSOP PowerPAD™ Package

The TPS7B770x-Q1 family of devices feature a single and dual, high-voltage low-dropout regulator (LDO) with current sensing, designed to operate with a wide input-voltage range from 4.5 V to 40 V (45-V load dump protection). These devices provide power to the low-noise amplifiers of the active antenna through a coax cable with 300 mA per channel current. Each channel also provides an adjustable output voltage from 1.5 V to 20 V.

These devices provide diagnostics through the current sense and error pins. To monitor the load current, a high-side current-sense circuitry provides a proportional analog output to the sensed load current. The accurate current sense allows detection of open, normal, and short-circuit conditions without the need for further calibration. Current sense can be multiplexed between channels and devices to save analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limit with an external resistor.

An integrated reverse polarity diode eliminates the need for an external diode. These devices feature standard thermal shutdown, short-to-battery protection on the output, and reverse current protection. Each channel has internal inductive clamp protection on the output during inductive switch off.

These devices operate over a –40°C to +125°C ambient temperature range.

The TPS7B770x-Q1 family of devices feature a single and dual, high-voltage low-dropout regulator (LDO) with current sensing, designed to operate with a wide input-voltage range from 4.5 V to 40 V (45-V load dump protection). These devices provide power to the low-noise amplifiers of the active antenna through a coax cable with 300 mA per channel current. Each channel also provides an adjustable output voltage from 1.5 V to 20 V.

These devices provide diagnostics through the current sense and error pins. To monitor the load current, a high-side current-sense circuitry provides a proportional analog output to the sensed load current. The accurate current sense allows detection of open, normal, and short-circuit conditions without the need for further calibration. Current sense can be multiplexed between channels and devices to save analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limit with an external resistor.

An integrated reverse polarity diode eliminates the need for an external diode. These devices feature standard thermal shutdown, short-to-battery protection on the output, and reverse current protection. Each channel has internal inductive clamp protection on the output during inductive switch off.

These devices operate over a –40°C to +125°C ambient temperature range.
filter 尋找其它 線性與低壓差 (LDO) 穩壓器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能相似於所比較的產品。
TPS7B7701-Q1 現行 車用 300-mA、無電池 (40-V)、可調式天線低壓降電壓穩壓器 The single-channel version of this LDO.

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 9
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS7B770x-Q1, Automotive, Single- and Dual-Channel Antenna LDO With Current Sense datasheet (Rev. C) PDF | HTML 2018/9/12
應用說明 TPS7B7702-Q1 Reverse Current Protection PDF | HTML 2026/7/1
白皮書 Reduce System Noise Using Parallel LDOs PDF | HTML 2025/11/3
功能安全資訊 TPS7B770x-Q1 Functional Safety FIT Rate, FMD, and Pin FMA (Rev. A) PDF | HTML 2024/8/2
白皮書 Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 2022/12/14
白皮書 Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 2022/12/13
應用說明 TPS7B7702-Q1 Short Circuit Test Report 2020/2/28
技術文章 LDO Basics: Preventing reverse current PDF | HTML 2018/7/25
更多文件說明 Fundamentals of designing with LDOs in auto battery direct connect applications 2017/2/27

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

BOOSTXL-CANFD-LIN — SPI 至 CAN FD SBC + LIN 收發器 BoosterPack™ 插入式模組

SPI 轉 CAN FD SBC + LIN BoosterPack™ 外掛式模組搭載含整合式收發器的 TCAN4550-Q1 CAN FD 控制器，透過 SPI 介面為沒有整合 CAN FD 控制器或需要額外通道的微控制器提供存取 CAN FD 應用程式的功能。LIN 應用也可以使用 TLIN2029-Q1 故障保護 LIN 收發器和 MCU 的 UARTport 進行開發，使此 BoosterPack 成為任何 CANFD 或 LIN 系統的理想起點。
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
開發板

TPS7B7702EVM — TPS7B7702-Q1 雙通道天線 LDO 線性穩壓器評估模組

TPS7B7702EVM 評估模組 (EVM) 可協助設計師評估 TPS7B7702QPWPRQ1 天線 LDO 的運作和性能。TPS7B7702-Q1 是採用 HTSSOP 封裝且具有電流感測功能的單體整合式雙通道 LDO。此裝置的設計旨在為汽車環境中的主動式天線供應電源。此裝置具備過載、過熱，電池極性反接、反向電流，以及電池或接地輸出短路等整合式防護。此裝置支援高達 VIN = 45V 的供應電壓，以及每個通道高達 300mA 的負載。此裝置的高準確度電流感測可偵測開路、正常及短路天線狀況，無須在低電流下進一步校準。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

TPS7B7702-Q1 PSpice Transient Model (Rev. A)

SLVMAT8A.ZIP (208 KB) - PSpice 模型
支援產品和硬體
模擬型號

TPS7B7702-Q1 TINA-TI Reference Design

SLVMBE6.TSC (269 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

TPS7B7702-Q1 TINA-TI Transient Spice Model

SLVMBE5.ZIP (89 KB) - TINA-TI Spice 模型
支援產品和硬體
模擬型號

TPS7B7702-Q1 Unencrypted PSpice Transient Model

SLVMBE4.ZIP (11 KB) - PSpice 模型
支援產品和硬體
計算工具

PARALLEL-LDO-CALC — Parallel low-dropout (LDO) calculator

並聯低壓差 (LDO) 計算器是以 Microsoft® Excel® 為基礎的工具，可為使用鎮流器電阻器的並聯 LDO 穩壓器提供最壞情況分析。此工具可幫助使用者判斷所需的並聯 LDO 穩壓器最小數量，以及適合系統要求集的最佳鎮流器電阻。

在並聯應用中使用的常用 LDO 穩壓器的產品規格書資訊會預先填入計算機中。使用者可根據自己的系統需求，評估最符合其系統需求的 LDO 穩壓器裝置。

支援產品和硬體
參考設計

TIDA-01005 — 適用於四攝影機集線器且具有 MIPI CSI-2 輸出的車用 ADAS 參考設計

此攝影機集線器參考設計可將最多四個 130 萬畫素攝影機連接至 TDA3x 系統單晶片 (SoC) 評估模組 (EVM)。每部攝影機透過單一同軸電纜連接至集線器。採用 FPD-Link III 傳輸技術，將攝影機連接至四埠解串器。解串器的輸出為 MIPI CSI-2。此設計還可連接其他類型感測器，以實現感測器融合應用。
支援產品和硬體
參考設計

TIDA-01569 — 具有數位診斷和整合保護的 4 通道天線 LDO 參考設計

此汽車參考設計展示了為遠端板外負載供電的方法，通常是透過同軸纜線供電（即「幻影電源」）。此設計能夠防止板外佈線容易發生的各種故障，並以數位方式診斷這些故障。反向極性、反向電流、電池短路、接地短路和過熱自動關機皆透過 I2C 和故障旗標進行保護和診斷。整合式反向電流保護不需要在裝置輸出端使用外部二極體，可節省成本並避免增加壓降電壓。
支援產品和硬體
參考設計

TIDA-050096 — 可擴充、高電流、平行車用參考設計

此參考設計展示兩種並聯 TPS7B7702-Q1 線性穩壓器的方法，以實現幻象電源供應器等常見應用所需的更高負載電流。第一種方法是使用外部運算放大器 (op amps) 來並聯四個 TPS7B7702-Q1 通道，為負載提供高達 1.2A 的電流。此技術具有可擴充性，並可並聯更多線性穩壓器通道以提供額外的電流。第二種方法是使用鎮流電阻器並聯兩個 TPS7B7702-Q1 通道，提供高達 500mA 的輸出電流。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片