The document provides upgrade instructions for Worldsemi Co., Limited's digital LED ICs. It details 8 key upgrades including 1) integrated filter capacitors requiring no external components, 2) reverse connection protection, 3) increased pin voltage withstand, 4) ensuring color consistency down to 3.5V, 5) improved consistency of LED color and brightness, 6) reduced signal recognition range to work with 3.3V and 3.0V chips, 7) improved EMC/EMI performance, and 8) wiring and packaging changes. Verification testing showed the upgrades provide benefits like cost reduction, protection from faults, and meeting EMC/EMI specifications.

1. DIGITAL LED WS2812 Upgrade Instructions
WORLDSEMI CO., LIMITED

2. The leading global original manufacturer of DIGITAL LED
3-channel dual-line IC
WS2801-SOP14
3-channel single-line IC
WS2811-SOP8
Dual-signal Breakpoint IC
WS2818-SOP8

3. The leading global original manufacturer of DIGITAL LED
DIP- Φ8 size DIP- Φ5 size DIP- Φ5 Straw-hat size
5050 size 3535 size 2020 size 4020 size
DIP- F255 size

4. The leading global original manufacturer of DIGITAL LED
5050 size 3535 size5050 RGBW size
5050 size
2020 size

5. 01
IC Internal Integrated Filter Capacitor.
Highly Integrated/NO external components
required.
02
Reverse-connection protection
The IC will not be burnt out if VCC and
GND reverse conected.
03
VCC/DIN/DOUT PIN instantaneously
suppresses 12V voltage.
Increased the PIN withstand voltage
05
Greatly improved the consistency of the LED's
color and brightness LED
The accuracy of the IC output current: 5%
06
Signal recognition range reduced to less
than 2.8V
Compatible with 3.3V ARM & 3.0V Bluetooth
Chips
07
Improved EMC/EMI performance
Reducing Noise of Power Supply and Output
Signal
04
Ensure color consistency even under 3.5V
working voltage
Driver IC's Low-Dropout performance
improved.
08

6. VS
Pre-upgrade Upgraded
01
Cost Reduction
Simplify PCB layout & space-saving
Succient & beatiful appearance
NO faulty welded

7. Wider wiring for VCC & GND
Pre-upgrade Program
Upgraded Program

8. Actual measurement & verification
Graphical Representation
02
VerificationNo protection

9. 03

10. （Actual test and verification ）3.0VBluetooth Controller
04
NO electrical level conversion circuit required
（Actual test and verification ）3.3V ARM Controller
The original ones that only support
with 5V needed to raise the signal
voltage to support ARM and
Bluetooth chips.
Actual test and verification

11. 05
The highest point slightly exceeds the national standard average, and
there is still a certain margin from the highest value.
The highest point has a certain margin from the national
standard average, and it reaches the EMC/EMI specifications.

12. 5V-3.5Vpowered, LED keeps constant current,
NO visual differential brightness
Actual test & verification
Light intensity tester
Actual test & verification Actual test & verification

13. WS2812B-V5
WS2812E-V3
WS2812B-MINI-V3 WS2812C-2020
5050 Packaging
3535 Packaging 2020 Packaging
WS2812B-4020
WS2812C-4020
4020 Packaging
The following P/N are imported into the
upgraded IC without a separate version
WS2812S
WS2812A
WS2812C
5050 Packaging
＊Import into the upgraded IC after all inventory used up＊

14. Thank you
WORLDSEMI CO., LIMITED
Thanks so much for your attention to our products. Any inquiry or technical support,
please feel free to contact with us.
Web: http://www.world-semi.com
Email: yin@world-semi.com
Skype: shaoqinggirl
Alibaba: https://worldsemi.en.alibaba.com