The LM5105 is a high-voltage gate driver designed to drive both the high-side and low-side N–Channel MOSFETs in a synchronous buck or half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100 V. The single control input is compatible with TTL signal levels and a single external resistor programs the switching transition dead time through tightly matched turnon delay circuits. A high-voltage diode is provided to charge the high-side gate-drive bootstrap capacitor. The robust level shift technology operates at high speed while consuming low power and provides clean output transitions. Undervoltage lockout disables the gate driver when either the low-side or the bootstrapped high-side supply voltage is below the operating threshold. The LM5105 is offered in the thermally enhanced WSON plastic package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM5105 100-V Half-Bridge Gate Driver With Programmable Dead Time datasheet (Rev. E) | PDF | HTML | 25 Aug 2016 |
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 28 Feb 2020 | ||
| Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 28 Feb 2020 | ||
| White paper | Power Electronics in Motor Drives: Where is it? (Rev. A) | 01 Oct 2019 | ||
| More literature | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 29 Oct 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DPR) | 10 | Ultra Librarian |
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