With the original edge of PFC control mode LED driver control IC SD6800, ShiLan original boundary control, high power factor to upgrade the product, high efficiency, 30 w power or less application.
SD6800 datasheet_0.6.pdf
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SD6800_Manual(T8).pdf
SD6800 Description:
SD6800 is integration of PFC function and control mode of the LED driver IC. It USES a fixed conduction time control and the bottom opening technology, provide accurate constant current control, has a very high average efficiency. SD6800 design system is proposed, which can eliminate the light coupling, the secondary feedback control, loop compensation, compact circuit, reduce the cost.
SD6800 Features:
◆The original boundary control mode（PSR）
◆Active power factor correction function（APFC）
◆High power conversion efficiency
◆Low starting current, IC system quick start
◆VCC over-voltage protection, VCC under-voltage protection
◆LED open-circuit protection, LED a short circuit protection
◆Built-in overheating protection
SD6800 Pin Configuration：
SD6800 Pin definition：
Pin number | Name designation | Functional description |
1 | COMP | Transconductance amplifier output, external compensation network |
2 | FB | The feedback voltage detection |
3 | CS | Sampling the input current |
4 | GND | IC地 |
5 | DR | Drive output, external power grid |
6 | VCC | ICVCC |
7,8 | -- | Empty feet |
SD6800 Typical application circuit：
SD6800 Fluorescent lamp power supply design specification：
Description of products | Symbol | Minimum value | Typical values | Maximum/span> | unit |
Input Voltage Frequency PF THD |
Vin fLINE
|
90 47 0.94
|
220 50/60
|
265 63
15 | VAC HZ
|
Output Voltage Current
| Vo Io
|
20
|
40 450
|
42
|
V mA
|
Efficiency |
|
| 89% |
|
|
Protection LEDOpen circuit LEDShort circuit
|
|
| Yes Yes |
|
|
Adjust the rate Linear regulation Load regulation |
|
|
+/-2 +/-2 |
|
% % |
EMI Conduction Radiation |
|
| Pass Pass |
|
|
