Part Information Review and Update

Thought for 1 min 25 sec

I reviewed the part project against the datasheet already linked in the project, so no Datasheet URL update was needed. The main checks I used were: exact pin-count match, datasheet as source of truth for pin names/functions, and comparison of existing project properties/terminals against the datasheet metadata

Current part info review Project metadata currently present

Table

Field	Current value	Status
MPN	TM1814	Good
Manufacturer Name	TITAN MICRO ELECTRONICS	Close, but datasheet indicates Shenzhen Titan Micro Electronics Co., Ltd.
Part Type	Optoelectronic Devices	Broad but acceptable
Designator Prefix	IC	Unusual for Flux parts; typically `U` for ICs per part-project guidance
Datasheet URL	Set	Good
Package / Case Code	Missing	Should be added as SOP-8 / SOP8
Description	Four Channels LED Constant Current Driving Private Circuit	Present, but awkwardly worded

Datasheet-derived part summary

Table

Item	Datasheet finding
Function	4-channel LED constant-current driver IC
Package	SOP-8
Pin count	8
Supply	4.5 V to 6.5 V on VDD
Higher input option	Built-in 5 V regulator with series resistor allows 6 V to 24 V supply usage
Output type	4 open-drain constant-current outputs
Output current	6.5 mA to 38 mA, 64-step adjustable
Brightness control	256-level PWM
Data interface	Single-wire cascade, DIN in / DO out
Data rate	800 kHz external-control mode, 500 kHz internal-control mode
Output withstand	24 V OFF-state recommended operating figure, 32 V withstand called out in features
Power dissipation	250 mW at 25 °C

Pin cross-check Datasheet pin table vs current schematic symbol

Table

Pin #	Datasheet pin	Current terminal	Match
1	OUTR	OUTR	Yes
2	OUTG	OUTG	Yes
3	OUTB	OUTB	Yes
4	GND	GND	Yes
5	DO	DO	Yes
6	DIN	DIN	Yes
7	VDD	VDD	Yes
8	OUTW	OUTW	Yes

Symbol review

Pin count matches exactly: 8 / 8
Pin names and pin numbers match
The symbol arrangement is sensible for an 8-pin IC:
- outputs/power split across sides
- data pins grouped on one side
No missing or extra terminals detected

Footprint review

The layout contains exactly 8 pads, named to match the 8 pins:
- OUTR
- OUTG
- OUTB
- GND
- DO
- DIN
- VDD
- OUTW
That is consistent with the datasheet’s SOP-8 package and 1.27 mm pitch.
I could verify pad naming/count consistency, but the current layout data did not expose pad dimensions or geometry, so I could not fully confirm land-pattern dimensions against the mechanical drawing.

Mismatches / gaps found Definite gaps

Table

Area	Finding
Package metadata	Missing `Package or Case Code` property
Pin types	All terminals currently have Pin Type = Unspecified
Pin descriptions	No `Pin Description` properties are present
Description quality	Current description is not clean library-style wording
Manufacturer name	Current manufacturer value is less exact than datasheet wording

Recommended pin typing

Per part-project pin auditing practice, IC-style pins should have explicit types and structured metadata rather than staying Unspecified

Table

Terminal	Recommended Pin Type	Short Pin Description
OUTR	Output	Red channel current sink
OUTG	Output	Green channel current sink
OUTB	Output	Blue channel current sink
GND	Ground	Power ground
DO	Output	Serial data output
DIN	Input	Serial data input
VDD	Power In	Positive supply input
OUTW	Output	White channel current sink

Suggested metadata cleanup

Table

Field	Suggested value
Description	4-channel LED constant-current driver, SOP-8, 6.5 mA to 38 mA/channel, single-wire cascade interface
Manufacturer Name	Shenzhen Titan Micro Electronics Co., Ltd.
Package or Case Code	SOP-8
Designator Prefix	U
Operating Voltage	6.5 V
Implementation Details	Built-in 5 V regulator for higher supply via series resistor; 4 open-drain constant-current outputs; 64-step current setting; 256-level PWM; single-wire cascade DIN/DO

Bottom line

Good: MPN, datasheet URL, pin count, pin numbering, pin names, and 8-pad footprint mapping all look consistent.
Needs improvement: package metadata, library-style description, exact manufacturer string, pin types, and pin descriptions.
No hard pinout mismatch found.
No full mechanical footprint mismatch proven, but pad geometry could not be fully audited from the available layout data.

If you want, I can apply the cleanup now:

update project properties/description
set pin types
add short pin descriptions for all 8 terminals

Clean up metadata

Fix designator prefix

Tighten description text

Check footprint dimensions

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Project Name

TM1814

Description

TM1814 is four channels LED constant current adjustable driver IC with function of internal control synchronizing, which can achieve a wide range of display as MCU inputs one group of data set by constant current and PWM to TM1814. When input signal is disconnected, it can realize synchronized fixation of colorful pattern change and prevent in-operation of subsequent cascade chip caused by chip damage. Internal chip is integrated with MCU solidification program and single wire digital interface, data flip-latch, LED constant current driver, circuit, etc. Internal VDD pin is integrated with 5V regulator with less peripheral devices, which applies to guardrail tube, point source and LED decorative products. This product has excellent performance and reliable quality. Features  Adopt power CMOS technology  Withstand voltage of OUT output port is 32V  5 V voltage-regulator tube is built into VDD, and the voltage supports 6-24 V after cascading the resistor  Constant current can achieve level 64 adjustment (6.5 mA-38mA)  PWM brightness controls circuit, and 256 brightness is adjustable  Accurate current output value Maximum error (between channels): ±3% Maximum error (between chips): ±5%  Single line serial concatenated port  Oscillation mode: build in RC vibration and conduct clock synchronization according to signals on data line. After receiving the data from this unit, it can reproduce follow-up data and send it to lower level through data output end, and signals will not be distorted and reduced along with cascade  Build in power on reset circuit, and after powering on reset, all registers are initialized to zero  External control mode data transmission rate is 800 KHZ  Internal control mode data transmission rate is 500 KHZ  Internal control mode chip sends 2048 points of data  Encapsulation mode: SOP8 #CommonPartsLibrary #IntegratedCircuit

Properties

Manufac… Number

TM1814

Manufac…er Name

TITAN MICRO ELECTRONICS

Part Type

Optoelectronic Devices

Datasheet URL

superlightingled.com/PDF/TM1814-TitanMicro.pdf

Designator Prefix

License

creativecommons.org/licenses/by/4.0/

Pricing & Availability

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adrian95 / TM1814

Schematic