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TCA9517-Q1

ACTIVE

Automotive 2-bit level-translating 400-kHz I2C/SMBus buffer/repeater with powered-off high-impedance

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Data sheet

TCA9517-Q1

ACTIVE
Data sheet Order now

Product details

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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Type Title Date
* Data sheet TCA9517-Q1 Level-Shifting I2C Bus Repeater datasheet (Rev. A) PDF | HTML 10 Feb 2022
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Functional safety information TCA9517-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 30 Jun 2021

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