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Texas Instruments LM74700QDBVRQ1 — Power Management (PMIC / Gate Driver)

TI LM74700QDBVRQ1 N+1 ORing Controller, AEC-Q100, SOT-23-6

MPNLM74700QDBVRQ1
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Texas Instruments LM74700QDBVRQ1, N+1 ORing Controller, Automotive AEC-Q100, N-Channel, 3.2V~65V supply, 1.4 µs ON delay, 450 ns OFF delay, SOT-23-6.

$1.44591Ref. price · indicative, final on quote
Texas Instruments LM74700QDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM74700QDBVRQ1 specifications
ParameterValue
TypeN+1 ORing Controller
SeriesAutomotive, AEC-Q100
FET typeN-Channel
MountingSurface Mount
Supply voltage3.2V ~ 65V
Output current5A
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsAutomotive
CaseSOT-23-6
Delay time - ON1.4 µs
Delay time - OFF450 ns
Internal switchNo
Ratio - Input:Output1:1

Product details

N+1 ORing controller for automotive power rail redundancy

The Texas Instruments LM74700QDBVRQ1 is an N+1 ORing controller designed to drive an external N-channel MOSFET for reverse-current blocking and supply rail ORing in automotive systems.

Wide supply range and fast timing

The controller operates from a 3.2V to 65V supply, covering 12V and 24V automotive buses with margin for load-dump transients. Turn-on delay is 1.4 µs and turn-off delay is 450 ns, fast enough to prevent reverse current during supply switchover in redundant power architectures.

External FET required — no internal switch

The LM74700QDBVRQ1 does not include an internal FET; it drives an external N-channel MOSFET. The gate drive is rated for up to 5A output current, sized for the external FET's gate charge. The 1:1 input-to-output ratio means one controller per ORing channel.

SOT-23-6 package and mounting

Housed in a 6-pin SOT-23-6 package (supplier device package SOT-23-6), surface-mount only. The compact footprint suits space-constrained ECU boards.

The base product number is LM74700.

Frequently asked questions

Does LM74700QDBVRQ1 have an internal FET?

No. The LM74700QDBVRQ1 is a controller only and requires an external N-channel MOSFET for the ORing function.

What is the difference between LM74700QDBVRQ1 and LM74700QDBVR?

The LM74700QDBVRQ1 is the AEC-Q100 automotive-qualified variant of the base LM74700QDBVR. The suffix 'Q1' denotes automotive grade. The base part number LM74700QDBVR may not carry the same qualification. For automotive ECU programs, use the Q1 variant.