LM5109AMAX/NOPB

Texas Instruments

Texas Instruments LM5109AMAX/NOPB, Half-Bridge Gate Driver, N-Channel MOSFET, Non-Inverting Input, 2 Independent Drivers, 8V–14V Supply, 1A Peak Output, 8-SOIC Package, -40°C to 125°C.

Texas Instruments LM5109AMAX/NOPB
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Technical specifications

LM5109AMAX/NOPB specifications
Parameter / AttributeSpecification / Value
Gate typeN-Channel MOSFET
Input typeNon-Inverting
Channel typeIndependent
MountingSurface Mount
Supply voltage8V ~ 14V
Logic voltage - VIL, VIH0.8V, 2.2V
High side voltage - max (Bootstrap)108 V
Current - peak output (Source, sink)1A, 1A
Operating temperature-40°C ~ 125°C (TJ)
PackageBulk
Case8-SOIC (0.154\", 3.90mm Width)
Number of drivers2
Driven configurationHalf-Bridge
Rise (Fall time)15ns, 15ns

Technical details

Half-bridge driver for N-channel MOSFETs — what it handles and where it fits

The high-side bootstrap pin is rated to 108 V, setting the maximum DC bus voltage the driver can support. Operating over -40°C to 125°C, it suits industrial motor drives, DC-DC converters, and power supplies where the driver sits near the switching devices on the same PCB.

1 A peak drive — sizing the gate resistor and dead time

With 1 A peak source and sink capability, this driver charges and discharges gate capacitance. The symmetric 15 ns rise and fall times simplify dead-time calculation.

For dual-sourcing, the LM5106MM/NOPB is a functional peer with similar half-bridge drive but synchronous channel type and slightly higher 1.2 A peak current — verify pin compatibility before substituting.

LM5109AMAX/NOPB
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