NSG27527

The NSG27527 is a dual-channel, high-speed, low-side gate driver capable of effectively driving MOSFET and IGBT power switches. The NSG27527 can deliver high peak current pulses of up to 4A source and 4A sink to capacitive loads, and features rail-to-rail drive capability with a typical propagation delay as low as 20ns. In addition, this driver features matched internal propagation delays between the two channels, making it well-suited for applications with stringent timing requirements for dual gate driving, such as synchronous rectifiers. This also allows the two channels to be connected in parallel to effectively increase current drive capability, or to drive two switches connected in parallel using a single input signal. The input pin thresholds are based on CMOS logic levels, referenced to the VDD supply voltage, and together with wide-voltage hysteresis provide excellent noise immunity.

Applications

• Switching power supplies
• DC-DC converters
• Companion gate driver devices for digital power controllers
• Solar, motor control
• IGBT/MOSFET drivers

Key features

• Two independent gate drive channels
• CMOS logic input
• 4A/4A peak sink/source current
• Input logic protection down to -10V
• Hysteretic logic threshold for high noise immunity
• Independent enable function for each output
• Output held low when input is floating
• Output held low during VDD UVLO (ensures glitch-free operation at power-up and power-down)
• -10~25V input voltage range
• Operating range: 4.5V~25V
• Short propagation delay: 20ns
• Fast rise and fall times
• Wide temperature range: -40°C~125°C
• SOP8 package