component

MC33035DWR2G

Public Made by Adom

by adom

onsemi Brushless DC (BLDC) Motor Driver, SOIC-24-300mil. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

componentmotor driver icsmc33035dwr2gfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

MC33035DWR2G

onsemi · Brushless DC (BLDC) Motor Driver · SOIC-24-300mil

MC33035DWR2G from onsemi, in a SOIC-24-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BT output Top Drive output, open collector, 50 mA sink current, minimum 30 V breakdown rating.
2 AT output Top Drive output, open collector, 50 mA sink current, minimum 30 V breakdown rating.
3 Fwd/Rev input Forward/Reverse logic input that reverses motor direction by exchanging top and bottom drive output states.
4 SA input Rotor position sensor input for three-phase commutation, TTL compatible with 2.2 V threshold.
5 SB input Rotor position sensor input for three-phase commutation, TTL compatible with 2.2 V threshold.
6 SC input Rotor position sensor input for three-phase commutation, TTL compatible with 2.2 V threshold.
7 Output Enable input Logic input enabling motor operation when high, forcing coast condition and Fault output activation when low.
8 Vref output Reference output, 6.25 V nominal, temperature-compensated, capable of supplying 20 mA sensor power current.
9 Current Sense Noninverting input Current sense non-inverting input with 100 mV threshold relative to Pin 15 that terminates output switch conduction.
10 Oscillator output Oscillator timing node where internal discharge transistor discharges timing capacitor CT at programmed 20-30 kHz frequency.
11 Error Amp Noninverting input Error amplifier non-inverting input, typically connected to speed set potentiometer for closed-loop speed control.
12 Error Amp Inverting input Error amplifier inverting input, typically connected to Pin 13 output for unity-gain closed-loop configuration.
13 Error Amp Out/PWM output Error amplifier output and PWM input providing pulse width modulation reference for motor speed control.
14 Fault Output output Open collector Fault output, active low, 16 mA sink current, activated by invalid sensor, overcurrent, UVLO, or thermal shutdown.
15 Current Sense Inverting input Current sense inverting reference input for 100 mV threshold, typically connected to bottom side of current sense resistor.
16 Gnd power_in Control circuit ground return that must reference separately from high-current power grounds to input source ground.
17 VCC power_in Control supply input, functional over 10 to 30 V range with 8.9 V turn-on UVLO threshold.
18 VC power_in Bottom drive supply input setting high-state voltage of bottom drive outputs, operational over 10 to 30 V with 8.9 V UVLO.
19 CB output Bottom drive output C, totem pole configuration, 100 mA source/sink capability for direct MOSFET or transistor gate drive.
20 BB output Bottom drive output B, totem pole configuration, 100 mA source/sink capability for direct MOSFET or transistor gate drive.
21 AB output Bottom drive output A, totem pole configuration, 100 mA source/sink capability for direct MOSFET or transistor gate drive.
22 60°/120° Select input Logic input selecting sensor electrical phasing: high for 60° configuration, low for 120° sensor phasing configuration.
23 Brake input Brake logic input that when high disables top drives and enables all bottom drives for dynamic motor braking.
24 CT output Top Drive output, open collector, 50 mA sink current, minimum 30 V breakdown rating.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-24-300mil
Category Motor Driver ICs
Pins 24

CAD (KiCad official)

  • Symbol: MC33035DWR2G
  • Footprint: Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm
  • 3D model: SOIC-24-300mil (KiCad packages3D, STEP)
  • 3D model files: mc33035dwr2g-etched.step / mc33035dwr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc33035dwr2g.step / mc33035dwr2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (30 pp, sha256 7f36160e4fe026b9, retrieved 2026-09-29, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF