Download SN6505B Datasheet PDF
SN6505B page 2
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SN6505B Description

The SN6505x is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives lowprofile, center-tapped transformers from a 2.25 V to 5 V DC power supply. Ultra-low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC).

SN6505B Key Features

  • 1 Push-pull driver for transformers
  • Wide input voltage range: 2.25 V to 5.5 V
  • High output drive: 1 A at 5 V supply
  • Low RON 0.25 Ω max at 4.5 V supply
  • Ultra-low EMI
  • Spread spectrum clocking
  • Precision internal oscillator options: 160 kHz
  • Synchronization of multiple devices with external
  • Slew-rate control
  • 1.7 A Current-limit

SN6505B Applications

  • Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, low-power LAN