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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

XL33035

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

XL33035 from XINLUDA, in a SOIC-24-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	BT	output	Open collector top drive output for upper power switch transistors, capable of sinking 50 mA with minimum 30 V breakdown voltage.
2	AT	output	Open collector top drive output for upper power switch transistors, capable of sinking 50 mA with minimum 30 V breakdown voltage.
3	Fwd/Rev	input	Forward/Reverse input to control motor rotation direction, TTL compatible with threshold typically at 2.2 V.
4	SA	input	Sensor input for rotor position decoder, TTL compatible with internal pull-up resistors, designed for Hall Effect or opto-slotted coupler interface.
5	SB	input	Sensor input for rotor position decoder, TTL compatible with internal pull-up resistors, designed for Hall Effect or opto-slotted coupler interface.
6	SC	input	Sensor input for rotor position decoder, TTL compatible with internal pull-up resistors, designed for Hall Effect or opto-slotted coupler interface.
7	Output Enable	input	Logic high enables motor operation and drive output sequencing; logic low causes motor coast and Fault output activation, with internal 25 µA pull-up when left disconnected.
8	Reference Output	output	Temperature compensated 6.25 V reference output providing charging current for oscillator timing capacitor and up to 20 mA for external sensors, with output voltage range of 5.9-6.5 V.
9	Current Sense Noninverting Input	input	Analog input for cycle-by-cycle current limiting with 100 mV threshold relative to Pin 15, typically connected to top side of current sense resistor.
10	Oscillator	output	Oscillator timing capacitor connection generating ramp signal from 1.5 V to 4.1 V, programmed by external resistor RT and capacitor CT for 20-30 kHz typical operation.
11	Error Amp Noninverting Input	input	Error amplifier noninverting input with input common mode range from 0 to Vref, typically connected to speed set potentiometer, with typical DC voltage gain of 80 dB.
12	Error Amp Inverting Input	input	Error amplifier inverting input with input common mode range from 0 to Vref, typically connected to error amplifier output for unity-gain feedback configuration in open loop applications.
13	Error Amp Out/PWM Input	output	Error amplifier output with 70-80 dB open loop gain and 4.6-5.3 V high state, providing PWM reference for internal comparator and available for closed-loop compensation.
14	Fault Output	output	Open collector fault output active low during invalid sensor input, output enable at logic 0, current sense exceeding 100 mV, undervoltage lockout, or thermal shutdown conditions, with 16 mA sink capability.
15	Current Sense Inverting Input	input	Reference input for current sense comparator establishing internal 100 mV threshold with respect to Pin 9, typically connected to bottom side of current sense resistor.
16	Gnd	power_in	Control circuit ground and reference point, must return separately to power source ground for proper noise immunity and accuracy.
17	VCC	power_in	Positive power supply for control IC operational over 10-30 V range, with typical quiescent current of 12-16 mA at VCC = VC = 20 V.
18	VC	power_in	Positive supply voltage for bottom drive outputs setting high state output voltage, operational over 10-30 V range independent of VCC for design flexibility, with typical supply current of 3.5-6.0 mA.
19	CB	output	Totem pole bottom drive output capable of sourcing and sinking 100 mA from VC supply, designed for direct N-channel MOSFET or NPN transistor drive with rise/fall times of 38-200 ns.
20	BB	output	Totem pole bottom drive output capable of sourcing and sinking 100 mA from VC supply, designed for direct N-channel MOSFET or NPN transistor drive with rise/fall times of 38-200 ns.
21	AB	output	Totem pole bottom drive output capable of sourcing and sinking 100 mA from VC supply, designed for direct N-channel MOSFET or NPN transistor drive with rise/fall times of 38-200 ns.
22	60°/120° Select	input	Configuration input for sensor electrical phasing, high state (1) selects 60° or 300° phasing while low state (0) selects 120° or 240° phasing, TTL compatible.
23	Brake	input	Brake input with logic low enabling normal motor operation and high state commanding rapid motor deceleration, with internal 40 kΩ pull-up resistor and unconditional priority over all control inputs.
24	CT	output	Open collector top drive output for upper power switch transistors, capable of sinking 50 mA with minimum 30 V breakdown voltage.

Key specifications

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

CAD (KiCad official)

Symbol: XL33035
Footprint: Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm
3D model: SOIC-24-300mil (KiCad packages3D, STEP)
3D model files: xl33035-etched.step / xl33035-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl33035.step / xl33035.glb are the bare package body.

Provenance

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

Datasheet: XINLUDA datasheet (34 pp, sha256 adea8d9294f4f33c, retrieved 2026-09-22, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF