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ST-0807RGB
RGB LED Chip Specifications

Revision Issued Date Revised Item and Content Note
01 2023-07-20 Original

ST-0807RGB
RGB LED Chip Specifications

1. Product Description
  • Package size: 2.0×1.7×0.8mm
  • Color: RGB
  • Package: White transparent resin
  • EIA standard packaging
  • Environmental product, RoHS compliant
  • For infrared reflow soldering process
ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES
2. Product External Dimensions
Product External Dimensions
Dimensional Diagram
Detailed dimensional specifications showing package measurements and pin configurations

Remark:

[1] All dimensions are millimeters (mm)

[2] Tolerance is ±0.1mm unless otherwise noted.

ST-0807RGB
RGB LED Chip Specifications

3. Absolute Maximum Ratings
The Limit Parameter (Ta=25°C)
Parameter Symbol Maximum Rating Unit
Power Dissipation Pd Red: 70 mW
Green: 85
Blue: 80
Peak Forward Current
(1/10 duty, 0.1ms pulse)
IFP Red: 70 mA
Green: 100
Blue: 80
Forward DC Current IF Red: 20 mA
Green: 20
Blue: 20
Reverse Voltage VR Red: 5 V
Green: 5
Blue: 5
Operating Temperature Topr -30°C ~ +85°C °C
Storage Temperature Tstg -40°C ~ +90°C °C
Soldering Conditions Tsol Reflow: 260°C, 10s
Hand: 350°C, 3s
°C
4. Electro-optical Characteristics
Typical Photoelectric Parameter List (Ta=25°C)
Parameter Symbol Color Min. Typ. Max. Unit Test Condition
Forward Voltage VF Red 1.7 1.9 2.2 V IF = 2.5mA
Green 2.4 2.8 3.0
Blue 2.4 2.8 3.0
Reverse Current IR Red -- -- 10 μA VR = 5V
Green -- -- 10
Blue -- -- 10
Peak Wavelength λP Red -- 630 -- nm IF = 2.5mA
Green -- 525 --
Blue -- 462 --
Dominant Wavelength λd Red -- 621 -- nm IF = 2.5mA
Green -- 520 --
Blue -- 468 --
Spectral Bandwidth Δλ Red -- 20 -- nm IF = 2.5mA
Green -- 35 --
Blue -- 25 --
Luminous Intensity IV Red -- 70 -- mcd IF = 2.5mA
Green -- 240 --
Blue -- 60 --
Half Intensity Viewing Angle 2θ1/2 -- -- 120 -- deg IF = 2.5mA

ST-0807RGB
RGB LED Chip Specifications

5. Characteristic Curves
Typical Electro-Optical Characteristic Curves: (Ta=25°C)

Forward Current Vs. Forward Voltage

Forward Current vs Voltage Chart

Shows I-V characteristics for Red, Green, and Blue LEDs

X-axis: Forward Voltage VF (V)

Y-axis: Forward Current IF(mA)

Temperature: Ta=25°C

Luminous Intensity Vs. Forward Current

Luminous Intensity Chart

Relative luminous intensity vs current relationship

X-axis: Forward Current IF(mA)

Y-axis: Relative Luminous Intensity(%)

Temperature: Ta=25°C

Forward Current Derating Curve

Current Derating Chart

Current derating vs ambient temperature

X-axis: Ambient Temperature Ta(°C)

Y-axis: Forward Current IF(mA)

Shows thermal derating characteristics

Radiation Diagram

Radiation Pattern Diagram

Polar radiation pattern diagram

Shows beam angle and intensity distribution

Temperature: Ta=25°C

Angular radiation characteristics

Spectrum Distribution

Spectrum Distribution Chart

Wavelength spectrum for Red, Green, and Blue emissions

X-axis: Wavelength λ(nm)

Y-axis: Relative Luminous Intensity(%)

Shows spectral characteristics of each RGB color

Peak wavelengths: Red ~630nm, Green ~525nm, Blue ~462nm

Note: All characteristic curves are measured under standard test conditions (Ta=25°C) using Golden CZ standard test equipment. Actual performance may vary with operating conditions.

ST-0807RGB
RGB LED Chip Specifications

6. Packaging Specifications
Packaging Details
Packaging Specifications
Packaging Diagram
Comprehensive packaging specifications including:
• Tape and reel specifications with dimensions
• Cathode orientation and feed direction
• Packaging flow: Inner label → Desiccant → Outer label
• Anti-static bag → Vacuum seal → Final packaging
• 3D packaging diagrams

Packaging Specifications:

  • Tape Width: 8.0mm
  • Pitch: 4.0mm
  • Perforation: 1.5mm diameter
  • Component Spacing: 2.0mm
  • Side dimensions: 3.5mm height, 0.235mm thickness
  • Empty before: 50pcs (20mm)
  • Empty after: 18000pcs
  • Unit: mm

Packaging Process:

  • Reel with inner label identification
  • Desiccant packet for moisture control
  • Moisture-proof anti-static bag
  • Vacuum sealing and heat sealing
  • Outer label with product information
  • Final carton packaging for shipping

Label Information includes:

  • Company name: Golden CZ
  • Model name: ST-0807RGB
  • Manufacturing date
  • Quantity
  • Electro-optical parameters
  • Batch/lot number

ST-0807RGB
RGB LED Chip Specifications

7. IC Chip Specifications
Maximum Ratings (Unless otherwise specified, Ta = 25°C)
Parameter Symbol Range Unit
Logic Supply Voltage VDD 3.0 ~ 7.5 V
R/G/B Output Port Voltage VH 9 V
Logic Input Voltage VI -0.5 ~ 5.5 V
Operating Temperature Topr -40 ~ +85 °C
Storage Temperature Tstg -50 ~ +150 °C
ESD Voltage VESD 5K V

ST-0807RGB
RGB LED Chip Specifications

8. Electrical Parameters (Ta = 25°C)
Parameter Symbol Min. Typ. Max. Unit
Chip Input Voltage VDD 3 5 7.5 V
R/G/B Output Port Voltage VH 8.5 9 9.5 V
R/G/B Output Port Current IO 2 2.5 3 mA
High Level Input Voltage VIH 0.7VDD 0.9VDD VDD V
Low Level Input Voltage VIL 0 0.1VDD 0.3VDD V
DOUT High Level Drive Current IOOH - 15 - mA
DOUT Low Level Drive Current IOOL - 30 - mA
PWM Frequency fPWM 3 4 5 kHZ
Supply Current IDD 0.15 0.3 0.45 mA
9. Switching Characteristics (Ta = 25°C)
Parameter Symbol Min. Typ. Max. Unit Test Condition
Data Transfer Rate FDIN - 800 1100 kHz -
Transfer Delay Time tPLZ - - 200 ns DIN → DOUT
Output Current Turn-on Time Tr - - 400 ns VDD=1.5V
IO=2.5mA
Tf - - 400 ns
10. Function Description

This chip adopts single-wire communication method and uses a return-to-zero coding format for data transmission. After the chip is powered on, the DIN port receives incoming data. After receiving 24 bits of data, the DOUT port starts to forward data to the next chip for cascading. During data transmission, if the DOUT port is directly connected, the chip will not receive new data. The chip has three PWM output ports: OUTR, OUTG, and OUTB, which respectively receive and drive the 24-bit data with different occupation ratios corresponding to different brightness levels. The signal frequency is 4kHz.

If the DIN port receives a RESET signal, the chip will display the received data. After receiving the signal, the chip will refresh and receive new data. After receiving 24 bits of data, it will be transmitted through the DOUT port. If the chip does not receive the RESET signal, the OUTR, OUTG, and OUTB outputs will remain unchanged.

After receiving more than 80μs of low level RESET signal, the chip will output the received 24-bit PWM data through OUTR, OUTG, and OUTB pins.

ST-0807RGB
RGB LED Chip Specifications

For example, if we design a 1024 level system, its refresh time would be 1024 × 0.4 × 2 = 0.8192ms (chip data delay time is 0.4μs), which does not affect the internal display effects.

11. Timing Sequence Diagram
1) Input Code Type
0 Code T0H T0L 1 Code T1H T1L RESET Code TRST
2) Code Timing
Name Description Typical Value Tolerance
T0H 0 Code, High Level Time 0.295μs ±0.05μs
T1H 1 Code, High Level Time 0.595μs ±0.05μs
T0L 0 Code, Low Level Time 0.595μs ±0.05μs
T1L 1 Code, Low Level Time 0.295μs ±0.05μs
Trst Reset Code, Low Level Time ≥80μs -

Application Note:

The 0807 RGB uses a single polar return-to-zero code. Each code element must have a low level. This protocol's each code element starts with a high level, and the high level duration determines whether it is a "0" code or "1" code.

ST-0807RGB
RGB LED Chip Specifications

12. Connection Method & Data Transfer
3) Connection Method
Chip 1 DIN DOUT D1 D2 Chip 2 DIN DOUT D3 Chip 3 DIN DOUT D4
4) Data Transfer Method
RESET CODE ≥80us RESET CODE Data Refresh Period 1 Data Refresh Period 2 D1 1st-24bit 2nd-24bit 3rd-24bit 1st-24bit 2nd-24bit 3rd-24bit D2 2nd-24bit 3rd-24bit 2nd-24bit 3rd-24bit D3 3rd-24bit 3rd-24bit D4

Note: D1 is data sent by MCU, D2, D3, D4 are data automatically reshaped and sent by each level circuit.

5) 24bit Data Structure
R7
R6
R5
R4
R3
R2
R1
R0
G7
G6
G5
G4
G3
G2
G1
G0
B7
B6
B5
B4
B3
B2
B1
B0

Note: High bit first, then RGB sequence data transmission

ST-0807RGB
RGB LED Chip Specifications

13. Usage Precautions
Usage Precautions

[1] Storage

A. After package sealing, storage conditions are Ta=5°C-30°C, RH<60%. Valid period on the package bag with qualified certificate is 30 days. If exceeding 30 days, baking is required. Baking conditions: 65°C ±5°C for 24 hours.

B. Before opening the package, first check if the package bag is leaking. If there is any leakage, please rebake before use.

C. After opening, please use under the following conditions: Temperature <30°C/RH<60% or below. The following baking treatment methods can be used:

a. Baking conditions: Product temperature in oven is 65°C ±5°C for 24 hours.

b. Remove product from package and rebake. Do not open oven door during baking process.

D. To avoid material moisture absorption leading to defects during customer production process, customers are requested to comply with the above requirements.

[2] ESD (Electrostatic Discharge Protection)

A. Static electricity and current surge can cause product characteristic changes, such as forward voltage drop, etc. In severe cases, it may cause product damage. Therefore, effective anti-static measures must be taken during use.

B. All related equipment and machines should be properly grounded, and other anti-static and electrical measures must be taken.

C. Use anti-static wrist straps, anti-static mats, anti-static work clothes, work shoes, gloves, and anti-static containers - all are effective anti-static and electrical measures.

⚠️ Important Notice:

Proper handling and storage procedures are essential for maintaining product quality and preventing damage. Please follow all guidelines carefully.

ST-0807RGB
RGB LED Chip Specifications

14. Design Recommendations

A. When designing circuits, the LED current should not exceed the specified maximum value. At the same time, protective circuits should be used. Otherwise, small voltage changes will cause large current changes, which may lead to product damage.

B. It is recommended to use circuit (A). This circuit can better regulate the current through each LED. Circuit (B) is not recommended. In this circuit, under voltage fluctuations, the LED forward voltage (VF) changes, and the current will change accordingly, which may cause the LED to be damaged by higher than specified current.

(A) (B)

C. LED characteristics are easily affected by their own heating and environmental temperature changes. Temperature rise will reduce LED luminous efficiency, brightness attenuation, color shift, etc. Therefore, thermal management issues should be considered in design.

[3] Reverse Voltage Protection

Normal LED reverse current is very small and will not affect normal use. If the LED is subjected to excessive reverse voltage for a long time, the LED will be damaged. Reverse current will become too large, causing light emission failure. During design, attention should be paid to controlling reverse voltage. It is recommended not to exceed 10V for the LED reverse voltage.

[4] Temperature Protection

LED will heat up under high temperature conditions, increasing junction temperature and power. If used in high temperature environments for a long time, it is easy to cause failure. For high-density array applications, it is recommended that the ambient temperature during use should not exceed 55°C, and junction temperature should not exceed 75°C.

[5] Other Matters

A. Direct contact with the product surface by hand or contamination of the packaging surface may cause product performance changes due to static electricity and other factors. Direct contact may affect the internal lead frame and gold wire, so please handle the product with care. Especially when the product is in a high temperature state, do not use hard, sharp objects or apply excessive force to contact the packaging surface. Pay attention when using magnetic clasps for collection.

B. Please do not use self-driven LED products below standard current to ensure stable product characteristics.

C. When LEDs are used outdoors, please provide waterproof, moisture-proof and salt-proof protection.

🏁 End of ST-0807RGB RGB LED Chip Specifications

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