LM5110-1M

• Independently drive two N-channel MOSFETs
• Compound CMOS and bipolar outputs reduce output current variations
• 5A sink/3A source current capability
• Two channels can be connected in parallel with dual drive currents
• Independent inputs (TTL compatible)
• Fast propagation time (25 ns typical)
• Fast rise and fall times (14 ns/12 ns rise/fall 2 nF load)
• Dedicated input ground pin (IN_REF) for separate or single-supply operation
• The output swing ranges from V CC to V EE can be entered into negative phase
• Two non-inverting, dual-reversed, and combined configurations are available
• Shutdown input to provide low-power mode
• Power rail under 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 includes MOS and bipolar transistors running in parallel to sink more than 5A capacitive load peaks together. The unique feature of the combination of MOS and bipolar devices reduces current changes in drive voltage and temperature. The 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 specialized input field (IN_REF). The gate driver output swing ranges from V CC output ground V EE to IN_REF negative. MOSFETs capable of accommodating negative VGS voltages Gate driving threshold low-voltage MOSFETs are often used as synchronous rectifiers to reduce losses. When driving with a conventional forward gate voltage, the IN_REF and V EE pins are connected together and refer to a common denominator. Undervoltage lockout protection and shutdown input pins are also provided. The driver can operate while the input and output are 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 converter