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MOSFET Drivers

CHiL MOSFET drivers are designed to work seamlessly with the CHiL multiphase PWM controllers to provide a well matched VR solution offering flexibility in power train component selection. The drivers switch both high and low side FETs of a synchronous buck configuration from one single device package.

  • Innovative features enable improvements in VR efficiency
    • Unique fast tri-level PWM signaling scheme for rapid switching & disable of MOSFETs and fast phase shedding
    • Flexibility in gate drive voltages and fast transition times
  • Highly reliable adaptive anti-shoot-through circuit to minimize the dead time and prevent cross conduction of the external FETs
    • Accurate, differential comparators to measure phase and gate voltages, compared to industry standard self-biased single ended comparators
    • Design ensures that MOSFET body diode conduction time is reduced
  • Single PWM pin to disable the device
    • Eliminates the need for extra trace routing found in traditional drivers using an ODB pin and allows control over each phase
  • Large sink current capability for the low side MOSFET to reduce the possibility of shoot-through
  • Unique anti-ringing blanking logic 
    • Ensures that ringing nodes do not create false gate drive triggering
  • Available in thermally enhanced DFN packages for higher switching frequency applications

The VR designer can select a driver optimized for the end application and the type of MOSFETs used in the power train.

  Part Number High side Sink/ Source Low side Sink/ Source Vcc Max Fsw Package
Desktop Solutions CHL8500CRT  1.65A/ 2.0A   2.0A/ 3.0A   12V 1 MHz DFN10
Server Solutions CHL8500CRT   1.65A/ 2.0A   2.0A/ 3.0A   12V 1 MHz DFN10
CHL8510CRT   3.0A/ 4.0A  4.0A/ 6.0A 12V 1 MHz DFN10
Enthusiast Solutions CHL8500CRT   1.65A/ 2.0A   2.0A/ 3.0A  12V  1 MHz DFN10
CHL8510CRT  3.0A/ 4.0A   4.0A/ 6.0A 12V  1 MHz DFN10