SN6501QDBVRQ1 Integrated Circuits (ICs)

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1. Description

The SN6501QDBVRQ1 is a monolithic oscillator/powerdriver, specifically designed for small form factor, isolated power supplies in isolated interface applications. The device drives a low-profile, centertapped transformer primary from a 3.3-V or 5-V DC power supply. The secondary can be wound to provide any isolated voltage based on transformer turns ratio. The SN6501-Q1 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive the ground referenced Nchannel power switches. The internal logic ensures break-before-make action between the two switches. The SN6501-Q1 is available in a small SOT-23 (5) package, and is specified for operation at temperatures from –40°C to 125°C.

2. Features

    1. Qualified for Automotive Applications

    2. AEC-Q100 Qualified With the Following Results

        – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range

        – Device HBM ESD Classification Level H2

        – Device CDM ESD Classification Level C4B

    3. Functional Safety-Capable 

        – Documentation available to aid functional safety system design

    4. Push-Pull Driver for Small Transformers

    5. Single 3.3-V or 5-V Supply

    6. High Primary-side Current Drive:

        – 5-V Supply: 350 mA (Max)

        – 3.3-V Supply: 150 mA (Max)

    7. Low Ripple on Rectified Output Permits Small Output Capacitors

    8. Small 5-Pin SOT-23 Package

3. Pin Configuration

4. Pin Functions

5. Applications

    1. Isolated Interface Power Supply for CAN, RS-485,RS-422, RS-232, SPI, I2C, Low-Power LAN

    2. Industrial Automation

    3. Process Control

    4. Medical Equipment