The LM5104 High-Voltage Gate Driver is designed to drive both the high-side and the low-side N-channel MOSFETs in a synchronous buck configuration. The floating high-side driver can work with supply voltages up to 100 V. The high-side and low-side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In addition to the adaptive transition timing, an additional delay time can be added, proportional to an external setting resistor. An integrated high-voltage diode is provided to charge high-side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. This device is available in the standard SOIC and the WSON packages.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM5104 High-Voltage Half-Bridge Gate Driver With Adaptive Delay datasheet (Rev. D) | PDF | HTML | 16 Dec 2014 |
| Application note | External Gate Resistor Selection Guide (Rev. A) | 28 Feb 2020 | ||
| Application note | Understanding Peak IOH and IOL Currents (Rev. A) | 28 Feb 2020 | ||
| More literature | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 29 Oct 2018 | ||
| Technical article | How to achieve higher system robustness in DC drives, part 3: minimum input pulse | 19 Sep 2018 | ||
| Technical article | How to achieve higher system robustness in DC drives, part 2: interlock and deadtime | 30 May 2018 | ||
| Technical article | Boosting efficiency for your solar inverter designs | 24 May 2018 | ||
| Technical article | How to achieve higher system robustness in DC drives, part 1: negative voltage | 17 Apr 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| WSON (DPR) | 10 | View options |
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