TXG4122
- Bidirectional I2C compatible communication
- Support for Standard-mode, Fast-mode, and Fast-mode Plus I2C operation
- Supports DV shifts up to ±40V
- 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:
- 16.5mA (Side 1) and 30mA (Side 2)
- Low power consumption at 400kHz (typical):
- ICC1 = 4.2mA, ICC2 = 0.9mA
- Operating temperature from –40°C to +125°C
- CMTI of 2kV/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 TXG4122 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 TXG4122 can solve the challenges of voltage translation across different ground levels up to ±40V. Both GND1 or GND2 can have an offset ground as long as the difference between GND1 and GND2 remains -40V to +40V.
The Simplified Block Diagram shows a common use case where DC shift occurs between GND1 to GND2 due to parasitic resistance or capacitance. The TXG4122 is able to support I2C-based communication between systems that have different supply voltages and different ground references. The leakage between GND1 and GND2 is typically 25nA when VCC to GND is shorted.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 날짜 |
|---|---|---|---|---|
| * | Data sheet | TXG4122 ± 40V Bidirectional Ground-Level Translator for I2C datasheet | PDF | HTML | 2026/06/15 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TXG-4CH-EVM — 4채널 접지 레벨 변환기용 TXG 평가 모듈(EVM)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치