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邏輯和電壓轉換
電壓轉換器及電平移位器
電壓轉換器

LSF0102

現行

雙路雙向多電壓位準轉換器

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產品規格表

LSF0102

現行
立即訂購

產品詳細資料

Bits (#) 2 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.95 Vin (max) (V) 4.9 Vout (min) (V) 1.8 Vout (max) (V) 5.5 Applications GPIO, I2C, MDIO, SMBus, UART Features Output enable Prop delay (ns) 1.2 Technology family LSF Supply current (max) (mA) 0.0015 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 2 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.95 Vin (max) (V) 4.9 Vout (min) (V) 1.8 Vout (max) (V) 5.5 Applications GPIO, I2C, MDIO, SMBus, UART Features Output enable Prop delay (ns) 1.2 Technology family LSF Supply current (max) (mA) 0.0015 Rating Catalog Operating temperature range (°C) -40 to 125
X2SON (DQE) 8 1.4 mm² (1.4 mm × 1 mm) SSOP (DCT) 8 11.8 mm² (2.95 mm × 4 mm) VSSOP (DCU) 8 6.2 mm² (2 mm × 3.1 mm) DSBGA (YZT) 8 1.9404 mm² (— mm × — mm) X2SON (DTM) 8 1.08 mm² (0.8 mm × 1.35 mm) SOT-23-THN (DDF) 8 8.12 mm² (2.9 mm × 2.8 mm)
  • Provides bidirectional voltage translation with no direction pin
  • Supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load and up To 40MHz up or down translation at 50pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.95V ↔ 1.8/2.5/3.3/5V
    • 1.2V ↔ 1.8/2.5/3.3/5V
    • 1.8V ↔ 2.5/3.3/5V
    • 2.5V ↔ 3.3/5V
    • 3.3V ↔ 5V
  • Low standby current
  • 5V tolerance I/O port to support TTL
  • Low RON provides less signal distortion
  • High-impedance I/O pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100mA per JESD 17
  • –40°C to 125°C operating temperature range
  • Provides bidirectional voltage translation with no direction pin
  • Supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load and up To 40MHz up or down translation at 50pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.95V ↔ 1.8/2.5/3.3/5V
    • 1.2V ↔ 1.8/2.5/3.3/5V
    • 1.8V ↔ 2.5/3.3/5V
    • 2.5V ↔ 3.3/5V
    • 3.3V ↔ 5V
  • Low standby current
  • 5V tolerance I/O port to support TTL
  • Low RON provides less signal distortion
  • High-impedance I/O pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100mA per JESD 17
  • –40°C to 125°C operating temperature range

The LSF family of devices supports bidirectional voltage translation without the need for DIR pin which minimizes system effort (for PMBus, I2C, SMBus, and so forth). The LSF family of devices supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load and up to 40MHz up or down translation at 50pF capacitive load which allows the LSF family to support more consumer or telecom interfaces (MDIO or SDIO).

LSF family supports 5V tolerance on I/O port which makes it compatible with TTL levels in industrial and telecom applications. The LSF family is able to set up different voltage translation levels which makes it very flexible.

The LSF family of devices supports bidirectional voltage translation without the need for DIR pin which minimizes system effort (for PMBus, I2C, SMBus, and so forth). The LSF family of devices supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load and up to 40MHz up or down translation at 50pF capacitive load which allows the LSF family to support more consumer or telecom interfaces (MDIO or SDIO).

LSF family supports 5V tolerance on I/O port which makes it compatible with TTL levels in industrial and telecom applications. The LSF family is able to set up different voltage translation levels which makes it very flexible.
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技術文件

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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 LSF0102 2 Channel Auto-Bidirectional Multi-Voltage Level Translator for Open-Drain and Push-Pull Applications datasheet (Rev. B) PDF | HTML 2024/4/11
選擇指南 Logic Guide (Rev. AC) PDF | HTML 2025/11/13
Application brief Enabling AI Accelerators with Voltage Level Translation and Analog Multiplexing (Rev. A) PDF | HTML 2025/9/29
應用說明 Top Questions About Auto Bi-Direction LSF Family Translators PDF | HTML 2024/12/26
應用說明 Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 2024/7/12
應用說明 Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024/7/3
Application brief Integrated vs. Discrete Open Drain Level Translation PDF | HTML 2024/1/9
Application brief Future-Proofing Your Level Shifter Design with TI's Dual Footprint Packages PDF | HTML 2023/9/5
Product overview Enabling System on Module Industrial PC Connectivity With Level Translation PDF | HTML 2023/4/3
Application brief Enabling Next Generation Processors, FPGA, and ASSP with Voltage Level Translat PDF | HTML 2023/1/17
Application brief Enabling Smart Solar Inverter Designs with Level Translation PDF | HTML 2022/10/31
Product overview Translate Voltages for I2C for PCA9306 LSF0102 TXS0102 PDF | HTML 2022/9/14
Product overview Translate Voltages for I2C PDF | HTML 2022/6/2
選擇指南 Voltage Translation Buying Guide (Rev. A) 2021/4/15
技術文章 Enabling smart meter wireless connectivity with level translation PDF | HTML 2019/10/23
應用說明 Factors Affecting VOL for TXS and LSF Auto-bidirectional Translation Devices 2017/11/19
應用說明 Biasing Requirements for TXS, TXB, and LSF Auto-Bidirectional Translators 2017/10/30
應用說明 Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) 2015/4/30
應用說明 Voltage-Level Translation With the LSF Family (Rev. B) 2015/3/12
應用說明 Selecting the Right Level Translation Solution (Rev. A) 2004/6/22

設計與開發

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開發板

5-8-LOGIC-EVM — 適用於 5 針腳至 8 針腳 DCK、DCT、DCU、DRL 和 DBV 封裝的通用邏輯評估模組

靈活的 EVM 旨在支援任何針腳數為 5 至 8 支且採用 DCK、DCT、DCU、DRL 或 DBV 封裝的裝置。
使用指南: PDF
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開發板

LSF-EVM — 1 至 8 位元 LSF 轉換器系列評估模組

LSF 系列裝置為支援 0.95V 與 5V 電壓範圍的電平轉換器，並提供無需方向接腳的多電壓雙向轉換。

LSF-EVM 隨附 LSF0108PWR 裝置，具備與 LSF0101DRYR、LSF0102DCTR 和 LSF0204PWR 裝置相容的著陸模式。

LSF-EVM 透過減少資料傳輸速率超過 100MHz 的反射，最適合高速轉換。此外，由於提供多個連線介面，且組裝了可透過跨接器連接輕鬆連接或中斷的上拉，因此電路板設計可讓您輕鬆進行評估。

使用指南: PDF
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模擬型號

LSF0102 IBIS Model

SDLM023.ZIP (56 KB) - IBIS 模型
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參考設計

TIDA-01012 — 無線物聯網、低功耗藍牙®、4½ 位元、100 kHz 真 RMS 數位萬用電錶

許多產品現在透過物聯網 (IoT) 實現連網功能，包括數位萬用電表 (DMM) 等 測試設備。  由德州儀器的 SimpleLink™ 超低功耗無線微控制器 (MCU) 平台驅動，TIDA-01012 參考設計展示了一款具備連網功能的 4½ 位數、100kHz 真 RMS DMM，支援 Bluetooth® 低功耗連線、NFC 藍牙配對，以及由 TI 的 CapTIvate™ 技術實現的自動喚醒功能。

 
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參考設計

TIDA-01014 — 適用於低功耗工業物聯網現場計量的強化準確度電池電量計參考設計

物聯網 (IoT) 革命可有效連接應用與儀器，實現電池供電的廣泛超低功耗感測器部署。  TI 進階感測器和低功耗連線裝置等新技術使這些儀器能夠設計成電池供電無線系統，大幅改善成本、部署、可靠性、性能和複雜性。

TIDA-01014 參考設計採用德州儀器的 SimpleLink™ 超低功耗無線微控制器 (MCU) 平台，運用 TIDA-01012 無線 DMM 參考設計，展示 bq27426 如何用來強化電池管理系統的電量計性能，最終達到最佳耗電量。TIDA-01014 具備無線連接、4½ 位數、100kHz 真 RMS DMM，支援 Bluetooth 低功耗® (BLE) 無線連線、NFC (...)

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
X2SON (DQE) 8 Ultra Librarian
SSOP (DCT) 8 Ultra Librarian
VSSOP (DCU) 8 Ultra Librarian
DSBGA (YZT) 8 Ultra Librarian
X2SON (DTM) 8 Ultra Librarian
SOT-23-THN (DDF) 8 Ultra Librarian
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