TCA9802DGKT Information

TCA9802 I2C Bus Buffer/Repeater

Texas Instruments TCA9802 I2C Bus Buffer/Repeater is a dual-channel bi-directional buffer intended for I2C bus and SMBus/PMBus systems. This device provides bi-directional level shifting (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages (1.65V to 3.6V). The TCA9802 features an internal current source on the B-side of the device, allowing the removal of external pull-up resistors on the B-side. The current source also provides an improved rise time and ultra-low power consumption. The TCA9802 is able to provide true buffering (rather than a pass-FET solution) without using a static voltage offset or incremental offset. This means that the VOL on both the A and B sides of the device is very low, helping to eliminate communication issues as a result of fixed VIL thresholds. Another key feature of the TCA9802 is that there are no power sequencing requirements or power supply dependencies. VCCA can be greater than, less than, or equal to VCCB. This gives the system designer flexibility with how the TCA9802 is used.

Specifications

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Alternate Names

Texas Instruments has several brands around the world that may have alternate names for TCA9802DGKT due to regional differences or acquisition. TCA9802DGKT may also be known as the following names: