APA104 LED SMD
General description
APA104 is a intelligent control LED light source that the control
circuit and RGB chip are integrated in a package of
5050 components. It internal include intelligent digital port data
latch and signal reshaping amplification drive circuit.
Also include a precision internal oscillator and a 12V voltage
programmable constant current control part, effectively
ensuring the pixel point light color height consistent. The data
transfer protocol use single NZR communication mode.
After the pixel power on reset, the DIN port receive data from
controller, the first pixel collect initial 24bit data then
sent to the internal data latch, the other data which reshaping by
the internal signal reshaping amplification circuit sent
to the next cascade pixel through the DO port. After transmission
for each pixel,the signal to reduce 24bit. pixel adopt
auto resha-ping transmit technology, making the pixel cascade
number is not limited the signal transmission, only
depend on the speed of signal transmission.LED with low driving
voltage, environmental protection and energy saving,
high brightness, scattering angle is large, good consistency, low
power, long life and other advantages. The control chip
integrated in LED above becoming more simple circuit, small volume,
convenient installation.
PIN function
NO. | Symbol | Function description |
1 | VDD | Power supply LED |
2 | DOUT | Control data signal output |
3 | VSS | Ground |
4 | DIN | Control data signal input |
Absolute Maximum Ratings
Prameter | Symbol | Ratings | Unit |
Power supply voltage | VDD | +3.5~+5.3 | V |
Input voltage | VI | -0.5～VDD+0.5 | V |
Operation junction temperature | Topt | -25～+80 | ℃ |
Storage temperature range | Tstg | -40~+150 | ℃ |
Electrical Characteristics(TA=-20～+70℃,VDD=4.5～5.5V,VSS=0V,unless otherwise specified)
Prameter | Smybol | conditions | Min | Tpy | Max | Unit |
Input current | II | VI=VDD/VSS | —— | —— | ±1 | μA |
Input voltage level | VIH | DIN,SET | 0.7VDD | —— | —— | V |
VIL | DIN,SET | —— | —— | 0.3 VDD | V |
Hysteresis voltage | VH | DIN,SET | —— | 0.35 | —— | V |
Switching characteristics(TA=-20～+70℃,VDD=4.5～5.5V,VSS=0V,unless otherwise specified)
Prameter | Symbol | Condition | Min | Tpy | Max | Unit |
Operation frequency | Fosc2 | —— | —— | 800 | —— | KHz |
Transmission delay time | tPLZ | CL=15pF,DIN→
DOUT,RL=10KΩ | —— | —— | 300 | ns |
Fall time | tTHZ | CL=300pF,OUTR/OUTG/OUTB | —— | —— | 120 | μs |
Input capcity | CI | —— | —— | —— | 15 | pF |
LED characteristic parameter
Emitting color | Model | Wavelength(nm) | Luminous intensity(mcd) | Voltage(V) |
Red | 10RIMUX | 620-625 | 390-420 | 2.0-2.2 |
Green | 13CGAUP | 522-525 | 660-720 | 3.0-3.4 |
Blue | 13CBAUP | 465-467 | 180-200 | 3.0-3.4 |
Data transfer time( TH+TL=1.25μs±600ns)
T0H | 0 code ,high voltage time | 0.4us | ±150ns |
T1H | 1 code ,high voltage time | 0.8us | ±150ns |
T0L | 0 code , low voltage time | 0.85us | ±150ns |
T1L | 1 code ,low voltage time | 0.45us | ±150ns |
RES | low voltage time | Above 50μs |
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