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Product Detailed Parameters
- Description：INTERFACE IC MISC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, ReDriver
- Applications：I2C
- Input：2-Wire Bus
- Output：2-Wire Bus
- Data Rate (Max)：400kHz
- Number of Channels：1
- Delay Time：127.2ns
- Signal Conditioning：-
- Voltage - Supply：0.9V ~ 5.5V, 2.7V ~ 5.5V
- Current - Supply：900µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-XFQFN Exposed Pad
- Supplier Device Package：8-X2QFN (1.6x1.6)
- Capacitance - Input：6.5 pF
- Grade：-
- Qualification：-
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Overview
The TCA9509MRVHR is a specialized bus interface component manufactured by Texas Instruments, designed for bidirectional voltage translation between I2C and SMBus protocols. It supports data rates up to 400 kHz and operates within a supply voltage range of 900 mV to 5.5 V. The device features a low quiescent current of 900 uA and functions reliably across an operating temperature range from -40°C to +85°C. Packaged in an X2QFN-8 surface-mount format, it facilitates seamless communication between systems with differing logic levels.
Feature Summary
- Supports bidirectional voltage translation for I2C and SMBus interfaces
- Operates at data rates up to 400 kHz
- Compatible with wide supply voltage ranges from 900 mV to 5.5 V
Applications
- Interfacing between different logic voltage domains in embedded systems
- Level shifting for I2C/SMBus peripherals in industrial applications
- Voltage translation in portable devices requiring low power operation
Procurement Notes
Verify the specific ordering suffix against official Texas Instruments documentation to ensure correct package type and tape-and-reel specifications. Confirm RoHS compliance status through the manufacturer's datasheet or product change notifications before procurement. Cross-reference the full part number with authorized distributors to validate availability and authenticity.
Selection Notes
Select this component when bidirectional level translation is required for I2C or SMBus buses with varying voltage domains. Ensure the system's maximum data rate does not exceed 400 kHz and that the operating environment stays within the specified temperature range. Verify that the supply voltage requirements align with the 900 mV to 5.5 V operational window.
Part Context
This part belongs to the TCA9509 series of bus interface ICs from Texas Instruments. It is categorized under Interface ICs and specifically designed for specialized interface applications. The component is distinct from other Texas Instruments products like the LM5009 regulator or LT1009 voltage reference, serving a unique role in signal translation rather than power management or reference generation.
Replacement Considerations
Consult official Texas Instruments substitution guides for verified alternatives. Generic cross-model replacements are not confirmed without specific manufacturer validation.
