JY01 Part Review

Worked for 3 mins 31 sec

Yes — the overall pin mapping and footprint look broadly plausible, but I would flag a few review issues rather than approving it cleanly.

1. Pin mapping check

Given datasheet table:

Table

Pin	Datasheet name/function	Current symbol terminal	Assessment
1	Brak / brake control / application setting / start torque adjustment	FO/EL	Likely mismatch / needs clarification
2	Is / current feedback	IS	OK
3	Vss / 0 V	GND	OK, acceptable alias
4	Vdd / 5 V	VDD	OK
5	Z/F / CW-CCW direction	Z/F	OK
6	M / speed signal output	M	OK
7	AT / MA top drive output	AT	OK
8	AB / MA bottom drive output	AB	OK
9	BT / MB top drive output	BT	OK
10	BB / MB bottom drive output	BB	OK
11	CT / MC top drive output	CT	OK
12	CB / MC bottom drive output	CB	OK
13	Ha / Hall A	HA	OK
14	Hb / Hall B	HB	OK
15	Hc / Hall C	HC	OK
16	VR / speed control input	VR	OK

Main issue: pin 1

The current symbol has pin 1 = FO/EL, while the JY01 V3.5 English datasheet pin table says pin 1 = Brak.

That is the largest likely mismatch.

I would not treat FO/EL as a harmless synonym unless you have another authoritative source for this exact JY01 variant showing pin 1 as FO/EL. In common BLDC-controller-board terminology, EL often means enable, and FO may mean fault output or fan output depending on context, but the JY01 datasheet pin 1 is specifically described as a brake/application/start-torque-related control pin, not as an enable/fault terminal.

Recommended symbol name for pin 1:

Prefer: BRAK
Or: BRAK / BRK
Or if you want to preserve alternate naming: BRAK / EL? only if supported by another source
Avoid approving as plain FO/EL without evidence

So for a Flux part review, I would flag pin 1 as:
“Pin 1 terminal name/function likely incorrect: symbol says FO/EL, datasheet says Brak / brake control. Please rename or justify alias.”

2. Footprint compatibility

Footprint: SOIC127P600X175-16N

This decodes approximately as:

SOIC/SOP
1.27 mm pitch
6.00 mm body width / nominal package width class
1.75 mm max/nominal height
16 leads
Gull-wing SOIC/SOP style

For a device described as SOP16, this is plausible. Many Chinese datasheets use “SOP16” generically for what CAD libraries call SOIC-16 wide-ish/narrow-ish SOP with 1.27 mm pitch.

However, I would not call it fully guaranteed unless the JY01 mechanical drawing gives matching dimensions. The key dimensions to verify are:

Pin pitch: likely 1.27 mm
Lead count: 16
Body width: likely around 3.9 mm or 6.0 mm depending on SOP variant terminology
Overall lead span: often around 6.0 mm for narrow SOIC/SOP-16, or larger for wide SOP
Body length: around 9.9–10.0 mm for SOIC/SOP-16
Height: around 1.75 mm

The footprint name SOIC127P600X175-16N suggests a standard JEDEC-style SOIC-16 narrow footprint with 1.27 mm pitch and about 6 mm overall span. If the datasheet merely says “SOP16” without a detailed package drawing, this footprint is a reasonable default, but it should be marked as plausible, not independently proven.

Review note:
“Footprint is plausible for SOP16, but confirm against manufacturer mechanical drawing if available. SOP16 can be ambiguous across suppliers.”

3. Manufacturer naming: CrossIC vs Shanghai JUYI / Juyi Tech

This also deserves a flag.

The product information appears to identify the device as JY01 by Juyi Tech / Shanghai JUYI Tech. CrossIC appears to be a distributor, catalog site, or reseller listing the part, not necessarily the silicon manufacturer.

So if the Flux part has:

Manufacturer: Crossic or CrossIC

that is probably not ideal. It should more likely be:

Manufacturer: Juyi Tech
Or Shanghai JUYI Tech
Supplier/distributor/source: CrossIC, if you want to preserve where it was found

Recommended review flag:
“Manufacturer should likely be Juyi Tech / Shanghai JUYI Tech, not CrossIC, unless CrossIC is intentionally being used as supplier rather than manufacturer.”

4. Other subtle checks

A few additional sanity checks:

Power pin naming

Datasheet uses:

Vdd = 5 V
Vss = 0 V

Symbol uses:

VDD
GND

That is acceptable. But the part properties should specify operating voltage as 4.5–5.5 V or nominal 5 V, not a motor bus voltage.

Output pin electrical type

Pins AT, AB, BT, BB, CT, CB are “drive outputs” for external power stage / gate-driver interface, not motor phase power outputs themselves. The symbol should not imply these pins directly drive the motor windings unless the JY01 is being represented as a whole controller module. For the IC, they are logic/control outputs.

Hall/sensorless description

The product page saying Hall/sensorless is consistent with the JY01 marketing/datasheet descriptions. The existence of Hall pins HA/HB/HC is not contradictory; sensorless operation likely uses application-specific configuration.

Pin 6 M

Pin 6 M as “speed signal output” is plausible. It should probably be typed as output, not input.

Pin 16 VR

Pin 16 VR is an analog speed-control input. If terminal metadata exists, it should be input/analog, with range 0–2.5 V or 0–5 V depending on configuration/application.

Conclusion

I would summarize the part review as:

Plausible with corrections required.

The 16-pin ordering from pins 2–16 matches the JY01 V3.5 datasheet well, and the SOIC127P600X175-16N footprint is a plausible SOP16 footprint. The two main things to flag are:

Pin 1 mismatch: current symbol says FO/EL, while datasheet says Brak / brake control. This should be corrected or justified with a second authoritative source.
Manufacturer mismatch: CrossIC is likely a catalog/distributor/source; manufacturer should likely be Juyi Tech / Shanghai JUYI Tech.

I would not reject the footprint outright, but I would mark it as needs mechanical confirmation if no package drawing is attached.

Worked for 1 min 8 sec

Created a project doc

JY01 Part Review

View Document

Date: 2026-07-23 Reviewed available part metadata, schematic symbol terminal data, PCB footprint, and datasheet-derived specifications for t...

flux

Reviewed the JY01 metadata, datasheet, symbol pins, and SOP16 footprint; I created the full report here: JY01 Part Review.

Key flags: pin 1 is likely mislabeled FO/EL vs datasheet Brak, manufacturer is likely Shanghai JUYI Tech rather than Crossic, and all pin types/descriptions are currently unspecified. The footprint is plausible for SOP16, but exact package dimensions should be confirmed if available.

Fix metadata issues

Rename pin 1

Update manufacturer

Add pin metadata

Check package drawing

Files

Pins

Symbol

Layout

Preview

Pin Number

VDD

Pin Number

Brak

Pin Number

Z/F

Pin Number

GND

Pin Number

JY01 Part Review

Date: 2026-07-23

Scope

Reviewed available part metadata, schematic symbol terminal data, PCB footprint, and datasheet-derived specifications for the JY01 brushless DC motor controller IC.

Datasheet status

Current part/project Datasheet URL is already set: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/2a3a42edd08a335b903680e35007fb007e57e18080f72090bc2c06987efcb338.pdf
Because a Datasheet URL was already present, I did not overwrite it.
Public official/near-official source found: https://www.bldcmotor-driver.com/photo/domaindemo-39509/document/11455/JY01_V3.5_2018-English.pdf
Product page source found: https://www.bldcmotor-driver.com/sale-11345265-jy01-3-phase-bldc-motor-driver-ic-high-current-brushless-control-ic.html

Available part metadata

Table

Field	Current / extracted value	Review
MPN	JY01	Matches datasheet/product page.
Manufacturer Name	Crossic	Mismatch/unclear: datasheet/product page indicate Shanghai JUYI Tech / Shanghai Juyi Electronic Technology Development Co., Ltd. Crossic appears more likely to be a catalog/source than the silicon manufacturer.
Part Type	Integrated Circuits	Acceptable; more specific category would be BLDC motor controller IC.
Designator Prefix	IC	OK.
Pin count	16	Matches datasheet SOP16 pin table.
Package	SOP16 in datasheet; current footprint `SOIC127P600X175-16N.kicad_mod`	Plausible for SOP16, but exact manufacturer mechanical dimensions were not extractable from OCR. Treat as compatible unless a package drawing shows a different SOP16 variant.
Description	JY01 brushless DC motor controller IC	Matches datasheet.
3D model	`JY01.stp`	Present; not dimension-verified in this review.

Key datasheet specs

Table

Spec	Datasheet value
Function	Integrated 2-in-1 Hall/sensorless BLDC motor controller IC
Supply / working voltage	4.5 V to 5.5 V, typical 5 V
Operating temperature	-40 °C to +85 °C
Drive mode	SPWM
Motor support	Hall-sensor BLDC or sensorless BLDC
Speed control	Linear speed control via VR, 0 V to 2.5 V or 0 V to 5.0 V
Direction control	Z/F pin, connect to Vss or Vdd for CW/CCW
Output polarity	Positive-polarity drive outputs; MOS drive circuit must account for this
Overload threshold	IS pin approximately 0.1 V starts overload/constant-current behavior
Protection threshold	IS pin approximately 0.2 V triggers protection, extracted timing about 4.5 us
Current-sense formula	I = 0.1 / R, where R is the current-sense resistor in ohms
Blocking protection	Stops output if motor does not start normally; extracted text says about 3 s, while some revision text references 2.5 s
Soft-start options	1 s, 3 s, or 10 s optional

Pinout cross-check

Table

Pin	Current symbol terminal	Datasheet name/function	Result
1	FO/EL	Brak / brake control; multifunction application setting, Hall-mode enable, sensorless start-torque input	Mismatch / needs correction or source justification.
2	IS	Is, current signal feedback input; overload protect about 0.1 V	OK.
3	GND	Vss, 0 V / power negative	OK alias.
4	VDD	Vdd, 5 V / power positive	OK.
5	Z/F	CW/CCW direction control, connect Vss or Vdd	OK.
6	M	Speed signal / pulse output	OK.
7	AT	MA top drive output	OK.
8	AB	MA bottom drive output	OK.
9	BT	MB top drive output	OK.
10	BB	MB bottom drive output	OK.
11	CT	MC top drive output	OK.
12	CB	MC bottom drive output	OK.
13	HA	Ha, Hall sensor input A	OK.
14	HB	Hb, Hall sensor input B	OK.
15	HC	Hc, Hall sensor input C	OK.
16	VR	Speed-control input, 0 V to 2.5 V or 0 V to 5.0 V	OK.

Symbol review

The symbol has 16 terminal entries and the pin-number ordering matches the datasheet for pins 2 through 16.
Pin 1 is the main symbol mismatch: current terminal name FO/EL does not match the datasheet Brak / brake-control multifunction pin.
All terminal Pin Type properties are currently Unspecified; datasheet-supported pin types should be added for ERC quality.
No detailed Pin Description properties are currently present on the terminal entries; adding datasheet descriptions would improve part quality.

Footprint review

Current footprint asset: SOIC127P600X175-16N.kicad_mod.
Inline footprint has 16 SMD pads, 1.27 mm pitch, pads approximately 0.65 mm x 1.525 mm, and a nominal SOIC/SOP-16 outline.
Datasheet/product page specify SOP16 packaging, so this footprint is plausible.
The available OCR did not expose a numeric manufacturer mechanical drawing; final approval should compare against the original package drawing if available.

Mismatches / action items

Rename or justify pin 1: current FO/EL vs datasheet Brak / brake-control multifunction pin.
Consider changing Manufacturer Name from Crossic to Shanghai JUYI Tech or Shanghai Juyi Electronic Technology Development Co., Ltd., unless Crossic is intentionally used as supplier/source.
Add terminal Pin Description metadata for all 16 pins from the datasheet.
Assign terminal Pin Type metadata: power, ground, input, output, analog input, and drive-output as appropriate.
Mechanically confirm the SOP16 package drawing if manufacturing risk is high; the existing SOIC/SOP-16 footprint is plausible but not proven by extracted dimensions.

Scope
Datasheet status
Available part metadata
Key datasheet specs
Pinout cross-check
Symbol review
Footprint review
Mismatches / action items