# Bootstrap gate-drive supply

Canonical URL: https://eloragrid.ai/symbols/bootstrap-gate-supply
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: BOOT
Drawing use: Schematic
Reference families: Manufacturer

A diode-capacitor arrangement used to supply a floating high-side gate-driver circuit under documented switching conditions.

## What it represents

A diode-capacitor arrangement used to supply a floating high-side gate-driver circuit under documented switching conditions.
On a schematic, identify the bootstrap diode, capacitor and switching-node return and trace the driver's floating supply and charging path. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
A bootstrap circuit depends on its charging opportunity; it is not a continuous independent isolated DC supply.
The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing.

## How to read it

- Identify the bootstrap diode, capacitor and switching-node return.
- Trace the driver's floating supply and charging path.

## Information to show or reference

- Label the bootstrap diode, capacitor and switching-node return.
- Cross-reference the driver's floating supply and charging path.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.

## Important distinction

A bootstrap circuit depends on its charging opportunity; it is not a continuous independent isolated DC supply.

## Facts

- Common schematic mnemonic: BOOT — descriptive only; project/device documentation defines reference designations.
- Terminal / interface focus: The bootstrap diode, capacitor and switching-node return
- Artwork scope: Original educational functional/circuit reference; not a selected product pinout.

## Public references

- [UCC27714 — high-side and low-side gate drive with bootstrap context](https://www.ti.com/product/UCC27714) — Texas Instruments. Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.