首頁 介面 I2C & I3C ICs I2C & I3C level shifters, buffers & hubs

TCA9517-Q1

現行

具斷電高阻抗的車用 2 位元位準轉換 400 kHz I2C/SMBus 緩衝器/中繼器

產品詳細資料

Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 0.4 VCCA (min) (V) 0.9 VCCA (max) (V) 5.25 VCCB (min) (V) 2.7 VCCB (max) (V) 5.25 Supply restrictions No rule Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 0.4 VCCA (min) (V) 0.9 VCCA (max) (V) 5.25 VCCB (min) (V) 2.7 VCCB (max) (V) 5.25 Supply restrictions No rule Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • AEC-Q100 Qualified for automotive applications
    • Device temperature: –40°C to 125°C TA
    • Device HBM classification Level: ±5500-V
    • Device CDM classification Level: ±1000-V
  • Functional Safety-Capable
  • Two-channel bidirectional buffer
  • I2C Bus and SMBus compatible
  • Operating Supply Voltage Range of 0.9-V to 5.25-V on A-side
  • Operating supply voltage range of 2.7-V to 5.25-V on B-side
  • Voltage-level translation from 0.9-V to 5.25-V and 2.7-V to 5.25-V
  • Active-high repeater-enable input
  • Open-drain I2C I/O
  • 5.25-V tolerant I2C and enable input support mixed-mode signal operation
  • Accommodates standard mode and fast mode I2C devices and multiple controller
  • High-impedance I2C pins when powered-off
  • Latch-up performance exceeds 100 mA Per JESD 78, class II
  • AEC-Q100 Qualified for automotive applications
    • Device temperature: –40°C to 125°C TA
    • Device HBM classification Level: ±5500-V
    • Device CDM classification Level: ±1000-V
  • Functional Safety-Capable
  • Two-channel bidirectional buffer
  • I2C Bus and SMBus compatible
  • Operating Supply Voltage Range of 0.9-V to 5.25-V on A-side
  • Operating supply voltage range of 2.7-V to 5.25-V on B-side
  • Voltage-level translation from 0.9-V to 5.25-V and 2.7-V to 5.25-V
  • Active-high repeater-enable input
  • Open-drain I2C I/O
  • 5.25-V tolerant I2C and enable input support mixed-mode signal operation
  • Accommodates standard mode and fast mode I2C devices and multiple controller
  • High-impedance I2C pins when powered-off
  • Latch-up performance exceeds 100 mA Per JESD 78, class II

The TCA9517-Q1 is a bidirectional buffer with level shifting capabilities for I2C and SMBus systems. It supplies bidirectional voltage-level translation (up-translation and/or down-translation) between low voltages (down to 0.9 V) and higher voltages (2.7 V to 5.25 V) in mixed-mode applications. This device enables I2C and SMBus systems to be extended without loss of performance, even during level shifting.

The TCA9517-Q1 buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus allowing two buses of up to 400-pF bus capacitance to be connected in an I2C application.

The TCA9517-Q1 has two types of drivers: A-side drivers and B-side drivers. All inputs and I/Os are overvoltage tolerant to 5.25 V, even when the device is unpowered (VCCB and/or VCCA = 0 V).

The TCA9517-Q1 is a bidirectional buffer with level shifting capabilities for I2C and SMBus systems. It supplies bidirectional voltage-level translation (up-translation and/or down-translation) between low voltages (down to 0.9 V) and higher voltages (2.7 V to 5.25 V) in mixed-mode applications. This device enables I2C and SMBus systems to be extended without loss of performance, even during level shifting.

The TCA9517-Q1 buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus allowing two buses of up to 400-pF bus capacitance to be connected in an I2C application.

The TCA9517-Q1 has two types of drivers: A-side drivers and B-side drivers. All inputs and I/Os are overvoltage tolerant to 5.25 V, even when the device is unpowered (VCCB and/or VCCA = 0 V).

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類型 標題 日期
* Data sheet TCA9517-Q1 Level-Shifting I2C Bus Repeater datasheet (Rev. A) PDF | HTML 2022年 2月 10日
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024年 7月 3日
Functional safety information TCA9517-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021年 6月 30日

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