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ON Semiconductor NCV8402ASTT1G

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ON Semiconductor
SOT-223 (TO-261)
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    NCV8402ASTT1G this integrated circuit is available in factory sealed anti static packs. at Please read product page below detail information. including NCV8402ASTT1G price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for NCV8402ASTT1G to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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    NCV8402ASTT1G Typical application Circuitry


    The NCV8402ASTT1G is a voltage level translator IC designed for various applications. It features bidirectional voltage translation between different voltage domains while offering protection against voltage spikes and ESD. Here are its key features, an application scenario, and a detailed connection example:

    Important characteristics:

    1. Voltage Translation: This function allows two voltage domains to be bi-directionally translated by voltage.

    2. Voltage Spike Protection: Provides defense against transient occurrences and voltage spikes.

    3. ESD Protection: Includes Electrostatic Discharge (ESD) protection for enhanced reliability.

    4. Low-Power Mode: This feature allows the device to run in a low-power mode to save energy.

    5. Compact Package: Available in a compact SOT-23 package for space-constrained designs.

    Application Scenario (I2C Level Translation):

    One common application for the NCV8402ASTT1G is level shifting in I2C communication between devices operating at different voltage levels. Here's a detailed connection example for this scenario:

    1. Low-Voltage Side (LV):

    - Connect the low-voltage side (LV) to the 3.3V domain.

    - Connect LV1 (Pin 1) to the 3.3V supply.

    - Connect LV2 (Pin 2) to the 3.3V ground (GND).

    2. High-Voltage Side (HV):

    - Connect the high-voltage side (HV) to the 5V domain.

    - Connect HV1 (Pin 3) to the 5V supply.

    - Connect HV2 (Pin 4) to the 5V ground (GND).

    3. I2C Signal Translation:

    - Connect the SDA signal from the 3.3V device to LV1.

    - Connect the SDA signal from the 5V device to HV1.

    - Connect the SCL signal from the 3.3V device to LV2.

    - Connect the SCL signal from the 5V device to HV2.

    Considerations When Designing the Circuit:

    1. Voltage Compatibility: Ensure that the LV voltage (3.3V) is compatible with the low-voltage device and that the HV voltage (5V) is compatible with the high-voltage device.

    2. Signal Integrity: Maintain proper signal integrity by minimizing trace lengths and reducing signal reflections, especially for high-frequency signals like I2C clock (SCL).

    3. Protection: Consider adding additional protection components, such as series resistors or TVS diodes, to protect against overvoltage events or ESD.

    4. Termination: Depending on your application, you might need to terminate the I2C lines with pull-up resistors.

    5. Bypass Capacitors: Include bypass capacitors near the power supply pins of the NCV8402ASTT1G to reduce noise and improve stability.

    When designing a circuit with the NCV8402ASTT1G, refer to the datasheet for comprehensive specifications, recommended component values, and application-specific guidelines. This ensures reliable voltage level translation in your specific application.

    NCV8402ASTT1G informationNCV8402ASTT1G information


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    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

    (2)We are informed of the defect described above within 90 days after the delivery of NCV8402ASTT1G.

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