Description

The SC1405 is a Dual-MOSFET Driver with an internal Overlap Protection Circuit to prevent shoot-through from VIN to GND in the main switching and synchronous MOSFET’s. Each driver is capable of driving a 3000pF load in 20ns rise/fall time and has ULTRAFAST propagation delay from input transition to the gate of the power FET’s.

Specifications and features

• Fast rise and fall times (20ns typical with 3000pf load)
• 20ns max. Propagation delay (BG going low)
• Adaptive/programmable shoot-through protection
• Wide input voltage range (4.5-25V)
• Programmable delay between MOSFET’s
• Power saving asynchronous mode control
• Output overvoltage protection/overtemp shutdown
• Under-Voltage lock-out and power ready signal
• Less than 10µA stand-by current (ENlow)
• Power ready output signal

Application Scenarios

• High Density/Fast transient power supplies
• Motor Drives/Class-D amps
• High frequency (to 1.2 MHz) operation allows use of small inductors and low cost caps in place of electrolytics
• Portable computers

Comparison