Datasheet Texas Instruments LM5105SD/NOPB — Datenblatt

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SNVS349E – FEBRUARY 2005 – REVISED AUGUST 2016 LM5105 100-V Half-Bridge Gate Driver With Programmable Dead Time
1 Features 3 Description 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 …