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Texas Instruments UC3637DWTR — Discrete Semiconductors
Texas Instruments

UC3637DWTR Brushed DC Motor Controller, 2.5V-20V, 20-SOIC

MPNUC3637DWTR
End of Life

Texas Instruments UC3637DWTR brushed DC motor controller, commutation and direction management, 2.5V to 20V supply, pre-driver half-bridge (4), parallel interface, 20-SOIC surface mount, 0°C to 70°C.

$8.6Ref. price · indicative, final on quote
UC3637DWTR datasheet
Packaging20-SOIC (0.295", 7.50mm Width)
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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

UC3637DWTR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Motor type - AC, DCBrushed DC
Voltage2.5V ~ 20V
InterfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionController - Commutation, Direction Management
ApplicationsGeneral Purpose
Case20-SOIC (0.295\", 7.50mm Width)
Output configurationPre-Driver - Half Bridge (4)

Product details

Brushed DC only — no brushless, no stepper

The motor type is explicitly brushed DC. If you are looking for a brushless DC or stepper motor controller, this is not the part — the DRV8811PWPR, for example, handles bipolar steppers and has a wider temperature range (-40°C to 150°C), but it is a fully integrated driver with a different pinout and supply (8 V load). Stick with the UC3637DWTR for simple brushed DC direction and speed control where you already have the power FETs on the board.

Lifecycle and sourcing reality

This part is still a valid BOM line for new designs and production builds.

Frequently asked questions

Is UC3637DWTR suitable for brushless DC motors?

No, the UC3637DWTR is designed for brushed DC motors only. It does not support brushless DC or stepper commutation.

What is the equivalent or replacement for UC3637DWTR?

The DRV8811PWPR is a functional alternative for bipolar stepper motors, but it is a fully integrated driver with an 8 V load supply and a wider temperature range (-40°C to 150°C). It is not a pin-for-pin replacement — verify your board layout and motor type before substituting.