LM5110-3M

• Drive two N-channel MOSFETs independently
• Compound CMOS and bipolar outputs reduce output current variation
• 5A sink/3A source current capability
• Two channels can be connected in parallel with dual drive currents
• Independent input (TTL compatible)
• Fast propagation time (25 ns typical)
• Fast rise and fall times (14 ns/12 ns ramp/drop 2 nF load)
• Dedicated input ground pin for split power or single-supply operation (IN_REF)
• The output swings from V_CCto V_EENegative phase can be entered to ground
• Available in two non-inverting, dual inverting and combination configurations
• Shutdown input provides a low-power mode
• Power rails with undervoltage lockout protection
• The pins are compatible with industry standard gate drivers

illustrate

The LM5110 dual-gate driver replaces the industry-standard gate driver with improved peak output current and efficiency. Each "composite" output drive stage consists of MOS and bipolar transistors running in parallel, sinking together over a 5A capacitive load peak. The unique feature of the combination of MOS and bipolar devices reduces current variations in drive voltage and temperature. Separate input and output ground pins provide negative drive capability, allowing the user to drive the MOSFET gate with both positive and negative VGS voltages. The gate driver control input is referenced to a dedicated input ground (IN_REF). The gate driver output swings from V_CCOutput ground V_EECan be IN_REF minus. MOSFETs capable of accommodating negative VGS voltages, gate driving thresholds, and low-voltage MOSFETs are often used as synchronous rectifiers to reduce losses. When traveling with conventional forward gate voltages, IN_REF and V_EEThe pins are connected together and reference a common denominator. Undervoltage lockout protection and shutdown input pins are also provided. The driver can operate simultaneously with the input and output connected to the dual drive current capability. The device is available in SOIC-8 and thermally enhanced LLP-10 packages.

apply

• Synchronous rectifier gate driver
• Switch-mode power gate driver
• Solenoid valves and motor drives
• Power level translators