High Speed Synchronous Power Mosfet Smart Driver

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 syn- chronous MOSFETs Each driver is capable of driving a 3000pF load in 20ns rise/fall time and has ULTRA- FAST propagation delay from input transition to the Gate of the power FETs The Overlap Protection circuit ensures that the second FET does not turn on until the top FET source has reached a voltage low enough to prevent shoot-through. The delay between the bottom Gate going low to the top Gate transitioning to high is externally programmable via a capacitor for optimal reduction of switching losses at the operating fre- quency. The bottom FET may be disabled at light loads by keeping S_MOD low to trigger asynchronous opera- tion, thus saving the bottom FETs Gate drive current and inductor ripple current. An internal voltage refer- ence allows threshold adjustment for an Output Over- Voltage protection circuitry, independent of the PWM feedback loop. Under-Voltage-Lock-Out circuit is in- cluded to guarantee that both driver outputs are low when the 5V Logic level is less than or equal to 4.4V (typ) at supply ramp up (4.35V at supply ramp down). A By Semtech Corporation
SC1405 's PackagesSC1405 's pdf datasheet

SC1405 Pinout, Pinouts
SC1405 pinout,Pin out
This is one package pinout of SC1405,If you need more pinouts please download SC1405's pdf datasheet.

SC1405 Application circuits
SC1405 circuits
This is one application circuit of SC1405,If you need more circuits,please download SC1405's pdf datasheet.

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SC1405 Application Notes SC1405 RoHS SC1405 Circuits SC1405 footprint