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6 Operation With External Bootstrap Diode
The LM2105 has an internal bootstrap diode included, the series resistor (R10) is not populated. This allows the
user to evaluate pin compatible drivers that do not have the internal bootstrap diode which is included with the
LM2105 high-side and low-side driver.
As a general guideline, when using the external bootstrap diode a resistance value of 2.2 Ω to 10 Ω is
recommended. Install the R10 1206-size resistor for evaluation of pin compatible drivers without the internal
bootstrap diode.
SLUUCS3 – FEBRUARY 2023
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Operation With External Bootstrap Diode
Using the LM2105EVM
7
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