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Texas Instruments LM5100AMR/NOPB — Power Management (PMIC / Gate Driver)

LM5100AMR/NOPB Half-Bridge Gate Driver, 3A Peak

MPNLM5100AMR/NOPB
End of Life

Texas Instruments LM5100AMR/NOPB, half-bridge gate driver, 2 independent channels, N-Channel MOSFET, 9V-14V supply, 118V bootstrap, 3A peak source/sink, 430ns/260ns rise/fall, -40°C to 125°C, 8-PowerSOIC with PowerPad, surface mount.

$3.84Ref. price · indicative, final on quote
Packaging8-PowerSOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM5100AMR/NOPB specifications
ParameterValue
Gate typeN-Channel MOSFET
Input typeNon-Inverting
Channel typeIndependent
MountingSurface Mount
Supply voltage9V ~ 14V
Logic voltage - VIL, VIH2.3V, -
High side voltage - max (Bootstrap)118 V
Current - peak output (Source, sink)3A, 3A
Operating temperature-40°C ~ 125°C (TJ)
PackageTube
Case8-PowerSOIC (0.154\", 3.90mm Width)
Number of drivers2
Driven configurationHalf-Bridge
Rise (Fall time)430ns, 260ns

Product details

Half-bridge gate driver for N-channel MOSFETs

It delivers 3A peak source and 3A peak sink current to the gate, with independent high-side and low-side channels. The bootstrap supply supports a high-side voltage up to 118 V, making it suitable for motor drives, DC-DC converters, and inverter stages where the floating high-side rail must ride above a switching node.

Rise and fall times — what they mean for switching

Typical rise time is 430 ns and fall time is 260 ns.

The LM5100AMR/NOPB comes in an 8-PowerSOIC package with an exposed PowerPad.

Supply and logic interface

The supply range is 9V to 14V, which is typical for a gate-drive bias rail derived from a 12V bus. The logic input threshold is specified with VIL at 2.3V minimum; The input is non-inverting, meaning a logic high on the input turns on the corresponding output. The two channels are independent, so you can drive the high-side and low-side MOSFETs with separate PWM signals as long as dead-time is handled externally.

Frequently asked questions

Are there equivalent gate drivers to LM5100AMR/NOPB?

The LM5106MM/NOPB is a functional alternative with faster rise/fall times (15ns, 10ns) and a lower peak output current of 1.2A. Verify pin compatibility and bootstrap ratings before substituting.

Is LM5100AMR/NOPB suitable for driving SiC MOSFETs?

The 118 V bootstrap voltage covers many SiC MOSFETs rated at 650V or 1200V, but the 3A peak drive and 430ns rise time may be too slow for SiC's fast switching requirements. SiC typically needs higher peak current and faster edge rates to minimize switching losses. Evaluate against your specific SiC gate charge and switching frequency.