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LM5109BMA-NOPB

LM5109BMA/NOPB Gate Driver, Half-Bridge, 1A, 8-SOIC

MPNLM5109BMA/NOPB
End of Life

Texas Instruments LM5109BMA/NOPB, half-bridge gate driver, 2 independent drivers, N-Channel MOSFET, 8V to 14V supply, 1A peak source/sink, 15ns rise/fall, 108V bootstrap, -40 to 125°C, 8-SOIC, Tube.

$1.68Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM5109BMA/NOPB specifications
ParameterValue
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)
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Number of drivers2
Driven configurationHalf-Bridge
Rise (Fall time)15ns, 15ns

Product details

Temperature grade and package — industrial environment ready

The tube shipping medium is typical for prototype and low-to-medium volume builds; for higher volumes, the part is also available in tape-and-reel under a different order code variant.

Sourcing and lifecycle — active, ROHS3, quoted to order

The active lifecycle means no last-time-buy risk for the foreseeable future, and the ROHS3 compliance satisfies the majority of global regulatory requirements for electronic equipment placed on the EU and other markets.

Frequently asked questions

What does NOPB mean in LM5109BMA/NOPB?

The NOPB suffix indicates the part is lead-free and RoHS3 compliant — no lead (Pb) in the solder finish or component materials.

What is the closest functional equivalent to LM5109BMA/NOPB?

The LM5106MM/NOPB is a functional peer — also a half-bridge N-channel MOSFET driver — but uses a synchronous input channel and comes in a 10-pin WSON package. It offers 1.2 A peak drive versus the LM5109BMA's 1 A. The pinout and footprint differ, so a board layout change is required.

Can LM5109BMA/NOPB drive a 120 V bus?

No. The bootstrap high-side voltage is rated to 108 V maximum, so a 120 V bus exceeds the safe operating area. The driver is suited for 48 V and 72 V bus voltages with margin.