SN6501-Q1 - Automotive Low-Noise 350 mA, 410 kHz Transformer Driver

The SN6501-Q1 is a monolithic oscillator/power-driver, specifically designed for small form factor, isolated power supplies in isolated interface applications. The device drives a low-profile, center-tapped 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 N-channel 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.

• Qualified for Automotive Applications
• 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
• Push-Pull Driver for Small Transformers
• Single 3.3-V or 5-V Supply
• High Primary-side Current Drive:
  • 5-V Supply: 350 mA (Max)
  • 3.3-V Supply: 150 mA (Max)
• Low Ripple on Rectified Output Permits Small
  Output Capacitors
• Small 5-Pin SOT-23 Package