LTC1693 Datasheet

• Dual MOSFET Drivers in SO-8 Package or Single MOSFET Driver in MSOP Package
• 1GΩ Electrical Isolation Between the Dual Drivers Permits High/Low Side Gate Drive
• 1.5A Peak Output Current
• 16ns Rise/Fall Times at V_CC = 12V, C_L = 1nF
• Wide V_CC Range: 4.5V to 13.2V
• CMOS Compatible Inputs with Hysteresis, Input Thresholds are Independent of V_CC
• Driver Input Can Be Driven Above V_CC
• Undervoltage Lockout
• Thermal Shutdown

• Power Supplies
• High/Low Side Drivers
• Motor/Relay Control
• Line Drivers
• Charge Pumps

The LTC1693 family drives power N-channel MOSFETs at high speed. The 1.5A peak output current reduces switching losses in MOSFETs with high gate capacitance.

The LTC1693-1 contains two noninverting drivers while the LTC1693-2 contains one noninverting and one inverting driver. These dual drivers are electrically isolated and independent. The LTC1693-3 is a single driver with an output polarity select pin.

All MOSFET drivers offer V_CC independent CMOS input thresholds with 1.2V of typical hysteresis. They can level-shift the input logic signal up or down to the rail-to-rail V_CC drive for the external MOSFET.

The LTC1693 contains an undervoltage lockout circuit and a thermal shutdown circuit that disable the external N-channel MOSFET gate drive when activated.

The LTC1693-1 and LTC1693-2 come in an 8-lead SO package. The LTC1693-3 comes in an 8-lead MSOP package.