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Texas Instruments UC3709N — Analog & Data Acquisition
Texas Instruments

UC3709N Low-Side Gate Driver, 1.5A Peak, 8-DIP

MPNUC3709N
End of Life

UC3709N, low-side gate driver, 2 independent drivers, N-Channel/P-Channel MOSFET, inverting input, 5V-40V supply, 1.5A peak source/sink, 20ns typ rise/fall, 8-DIP (0.300", 7.62mm), through-hole, 0°C to 70°C.

$12.57Ref. price · indicative, final on quote
UC3709N datasheet
Packaging8-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

UC3709N Technical Specifications
ParameterValue
Gate typeN-Channel, P-Channel MOSFET
Input typeInverting
Channel typeIndependent
Mounting typeThrough Hole
Voltage5V ~ 40V
Logic voltage - VIL, VIH0.8V, 2.2V
Current - peak output (Source, sink)1.5A, 1.5A
Operating temperature0°C ~ 70°C (TA)
PackageTube
Case8-DIP (0.300\", 7.62mm)
Number of drivers2
Driven configurationLow-Side
Rise (Fall time)20ns, 20ns

Product details

What this driver does and where it fits

The UC3709N is a dual low-side gate driver that handles both N-channel and P-channel MOSFETs from a single 5V to 40V supply rail.

Supply range and logic thresholds

The 5V to 40V supply range covers common bias rails.

Temperature grade — where it runs and where it doesn't

The 0°C to 70°C commercial temperature range limits this part to indoor environments.

Sourcing and lifecycle

The UC3709N carries an Active lifecycle status with ROHS3 compliance. For new designs, this part is a safe BOM line — no imminent LTB risk. For legacy board repair or a production line that already qualifies this DIP footprint, it remains available through independent distribution.

Frequently asked questions

What are the alternatives to UC3709N?

A functional alternative is the LM5106MM/NOPB, which is also a dual low-side driver but with non-inverting inputs, half-bridge configuration, and a wider -40°C to 125°C temperature range. The LM5106 comes in surface-mount packages only (no DIP), so it is not a pin-compatible drop-in for the UC3709N. For a through-hole replacement, the Microchip TC4427 or TC4428 series in 8-DIP is worth evaluating — same pin count, similar 1.5A drive strength, but check the supply range and logic thresholds against your design.

What gate types does the UC3709N support?

The UC3709N drives both N-channel and P-channel MOSFETs. Each of the two independent channels can handle either polarity, giving you flexibility to drive a synchronous rectifier pair or two independent low-side switches from one driver IC.