LSF0204-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C ≤ TA ≤ 125°C
- Device HBM ESD classification level 2
- CDM ESD classification level C6
- Provides auto-bidirectional voltage translation without direction pin
- Supports open drain or push-pull applications such as I2C, I2S, SPI, UART, JTAG, MDIO, SDIO, and GPIO
- Supports up to 100-MHz up translation and greater than 100-MHz down translation at ≤ 30-pF capacitor load and up to 40-MHz up/down translation at 50-pF capacitor load
- Supports Ioff, partial power down mode (see Section 7.3)
- Allows bidirectional voltage level translation
between
- 0.95 V ↔ 1.8, 2.5, 3.3, 5.5 V
- 1.2 V ↔ 1.8, 2.5, 3.3, 5.5 V
- 1.8 V ↔ 2.5, 3.3, 5.5 V
- 2.5 V ↔ 3.3, 5.5 V
- 3.3 V ↔ 5.5 V
- 5-V tolerance on I/O ports
- Low Ron enables better signal integrity
- Flow-through pinout for easy PCB trace routing
- Latch-up performance exceeds 100 mA per JESD17
The LSF0204-Q1 is automotive qualified four channel auto bidirectional voltage translator that operate from 0.8 V to 4.5 V (Vref_A) and 1.8 V to 5.5 V (Vref_B). This range allows for bidirectional voltage translations between 0.8 V and 5.5 V without the need for a direction pin.
When the An or Bn port is LOW, the switch is in the ON-state and a low resistance connection exists between the An and Bn ports. The low Ron of the switch allows connections to be made with minimal propagation delay and minimal signal distortion. The voltage on the A or B side will be limited to Vref_A and can be pulled up to any level between Vref_A and 5.5 V
The supply voltage (VPUn) for each channel may be individually set up with a pull up resistor. For example, CH1 may be used in up-translation mode (1.2 V ↔ 3.3 V) and CH2 in down-translation mode (2.5 V ↔ 1.8 V).
When EN is HIGH, the translator switch is on, and the An I/O is connected to the Bn I/O, respectively, allowing bidirectional data flow between ports. When EN is LOW, the translator switch is off, and a high-impedance state exists between ports. The EN input circuit is designed to be supplied by Vref_A. EN must be LOW to ensure the high-impedance state during power-up or power-down.
技術文件
| 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 | LSF0204-Q1 Automotive Qualified 4-Bit Auto-Bidirectional Multi-Voltage Level Translator datasheet (Rev. B) | PDF | HTML | 2021/4/29 | ||
| 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 | |||
| 選擇指南 | Voltage Translation Buying Guide (Rev. A) | 2021/4/15 |
設計與開發
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14-24-LOGIC-EVM — 適用於 14 針腳至 24 針腳 D、DB、DGV、DW、DYY、NS 和 PW 封裝的邏輯產品通用評估模組
14-24-LOGIC-EVM 評估模組 (EVM) 設計用於支援任何 14 針腳至 24 針腳 D、DW、DB、NS、PW、DYY 或 DGV 封裝的任何邏輯裝置。
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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |