Inicio Lógica y traducción de voltaje Traductores de tensión y desplazadores de nivel Convertidores a nivel de tierra
Inicio
Lógica y traducción de voltaje
Traductores de tensión y desplazadores de nivel
Convertidores a nivel de tierra

TXG8122-Q1

PRESENTACIÓN PRELIMINAR

Convertidor de nivel a tierra bidireccional de 2 bits y 80 V para señal I2C para uso automotriz

Haga su pedido ahora
Hoja de datos

TXG8122-Q1

PRESENTACIÓN PRELIMINAR
Hoja de datos Haga su pedido ahora

Detalles del producto

Rating Automotive Ground offset voltage (max) (V) 80 Bits (#) 2 Topology Open drain Applications GPIO, I2C, SMBus Forward/reverse channels 2/2 Isolation rating Functional Data rate (max) (Mbps) 2 Prop delay (ns) 69 CMTI (V/µs) 500 Output drive capability (max) (mA) 50 Technology family TXG Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 2.25 Vout (max) (V) 5.5 Current consumption per channel (1 Mbps) (typ) (mA) 4.2 Features AEC Q100
Rating Automotive Ground offset voltage (max) (V) 80 Bits (#) 2 Topology Open drain Applications GPIO, I2C, SMBus Forward/reverse channels 2/2 Isolation rating Functional Data rate (max) (Mbps) 2 Prop delay (ns) 69 CMTI (V/µs) 500 Output drive capability (max) (mA) 50 Technology family TXG Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 2.25 Vout (max) (V) 5.5 Current consumption per channel (1 Mbps) (typ) (mA) 4.2 Features AEC Q100
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • 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)
  • 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.

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.
filter Buscar otro/a Convertidores a nivel de tierra
Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 7
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TXG8122-Q1 ± 80V Bidirectional Ground-Level Translator for I2C datasheet PDF | HTML 6/06/2025
Application brief Solving Ground Shift Issues in Phase Array Satellites PDF | HTML 30/07/2026
Application brief Top Questions about Ground-Level Translators PDF | HTML 27/05/2026
Nota sobre la aplicación Solving Ground Mismatch in Automotive Systems PDF | HTML 3/03/2026
Artículo técnico Uneven grounds? Address offset challenges with novel ground-level translators (Rev. A) PDF | HTML 5/06/2025
Application brief Not All Grounds Are 0V PDF | HTML 21/05/2025
Product overview TI's Latest Ground-Level Translators PDF | HTML 7/05/2025

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TXG-4CH-EVM — Módulo de evaluación TXG para conversor de nivel de tierra de 4 canales

El TXG-4CH-EVM es un módulo de evaluación (EVM) que se utiliza para evaluar la familia de productos del conversor de nivel de tierra de 4 canales TXGx04x. El EVM admite múltiples opciones de paquetes, que incluyen DBQ de 16 pines, DYY de 14 pines y RUC de 14 pines. El EVM dispone de múltiples (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Ver todos los temas del foro en inglés

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos