web link

Product Preview

 

Contact

To request info - click here

 

For further information

mailto: Alison Evans.

ISL89367 High Speed 6A MOSFET Driver

ISL89367
Click to enlarge

The ISL89367 is a high-speed, 6A, 2 channel MOSFET driver optimized for synchronous rectifier applications. Internal timers can be programmed with resistors to delay the rising and/or falling edges of the outputs. Logically ANDed dual inputs are also provided. One input is for the PWM signal and the second can be used as an enable. A third control input is used to optionally invert the logical polarity of the driver outputs.

Comparator like logical inputs allows this driver to be configured for any logic level from 3.3V to 10 VDC. The precision logic thresholds provided by the comparators allow the use of external RC circuits to generate longer time delays than are possible with the internal timers. The comparators also allow the driver to be configured with a low output voltage that is negative relative to the logic ground if desired. This is useful for applications that require a negative turn-off gate drive voltage for driving FETs with logic thresholds.
At high switching frequencies, these MOSFET drivers use very little bias current. Separate, non-overlapping drive circuits are used to drive each CMOS output FET to prevent shoot-thru currents in the output stage.

An under voltage lockout (UV) insures that the driver outputs remain off (low) during turn-on until VDD is sufficiently high for correct logic control. This prevents unexpected behaviour when VDD bias is being applied or removed.

Features

  • 2 outputs with 6A peak drive currents (sink and source) with output voltage range of 4.5V to 16V
  • Typical ON-resistance ~1Ω
  • Specified Miller plateau drive currents
  • EPAD provides very low thermal impedance (θJC = 3°C/W)
  • Dual logic inputs with hysteresis for high noise immunity
  • Rising and/or falling output edge delays programmed with resistors
  • ~ 20ns rise and fall time driving a 10nF load
  • Low operating bias currents