High current MOSFET gate drivers with top switching efficiency
( 01 Sep 2008 )
The ISL6615 and ISL6615A are high-frequency 6A sink synchronous MOSFET gate drivers that provide greater efficiency, dramatic flexibility and added protection features for system safety.
Developed by Intersil Corporation, these drivers have increased gate drive currents (4A source and sink gate drive currents for UGATE and 4A source with 6A sink on LGATE) to reduce gate voltage rise and fall times. This minimizes switching losses and improves efficiency, especially in high current applications in which power MOSFETs are placed in parallel per phase.
The ISL6615 and ISL6615A also support both 9.6V and 12V input rails. In addition, designers can choose versions of the device which support 3.3 PWM signals (ISL6615) or 5V PWM signals (ISL6615A). Each device has a wide input voltage operating range of 5V to 12V and each is pin-for-pin compatible with Intersil’s previous generation ISL6594D.
With multiple protection features like bootstrap capacitor overcharging prevention, a tri-state PWM input for safe output stage shutdown, pre-POR overvoltage protection and VCC undervoltage protection, the ISL6615 and ISL6615A help protect the system.
Intersil Corporation, www.intersil.com.
Caption
The ISL6615 and ISL6615A reduce gate voltage rise and fall times to minimize switching loss.
The ISL6615 and ISL6615A are high-frequency 6A sink synchronous MOSFET gate drivers that provide greater efficiency, dramatic flexibility and added protection features for system safety.
