TXG8122-Q1
- AEC-Q100 qualified for automotive applications
- Bidirectional I2C compatible communication
- Support for Standard-mode, Fast-mode, and Fast-mode Plus I2C operation
- Supports DV shifts up to ±80V
- Data rate up to 1MHz
- Side 1 Supply Range: 3V to 5.5V
- Side 2 Supply Range: 2.25V to 5.5V
- Maximum capacitive load:
- 80pF (Side 1) and 550pF (Side 2)
- Open -drain outputs with current sink capability:
- 3.5mA (Side 1) and 50mA (Side 2)
- Low power consumption at 400kHz (typical):
- ICC1 = 3.1mA, ICC2 = 0.7mA
- Operating temperature from –40°C to +125°C
- CMTI of 500V/µs
- Latch-up performance exceeds 100mA per JESD 78, class II
- ESD protection exceeds JESD 22
- 2000V human-body model
- 500V charged-device model
- Package options provided: SOIC (8D), WSON (8DSG), SOT-23 (8DDF)
The TXG8122-Q1 device is a dual bidirectional, non-galvanic based voltage and ground-level translator for I2C. This device supports two separate configurable power-supply rails. Side 1 is designed to track VCC1 which accepts any supply voltage from 3V to 5.5V. Side 2 is designed to track VCC2 which accepts any supply voltage from 2.25V to 5.5V. Compared to traditional level shifters, the TXG8122-Q1 can solve the challenges of voltage translation across different ground levels up to ±80V. Both GNDA or GNDB can have an offset ground as long as the difference between GNDA and GNDB remains -80V to +80V.
The Simplified Block Diagram shows a common use case where DC shift occurs between GNDA to GNDB due to parasitic resistance or capacitance. The TXG8122-Q1 is able to support I2C-based communication between systems that have different supply voltages and different ground references. The leakage between GNDA and GNDB is typically 50nA when VCC to GND is shorted.
技術資料
種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
---|---|---|---|---|---|---|
* | データシート | TXG8122-Q1 ± 80V Bidirectional Ground-Level Translator for I2C データシート | PDF | HTML | 2025年 6月 6日 |
設計および開発
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TXG-4CH-EVM — TXG 4 チャネル グランド レベル シフタ向け評価基板
パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点