SD6900 Description of the application program.pdf
SD6900 User's guide(T8)-v0.3.pdf
SD6900-18W-Non certified version.rar
SD6900-T8 -The authenticated version.rar
SD6900 User's guide-v0.1.pdf
IC Model | Output power (W)
| Output voltage(V) | Topology | Mosfet | Current accuracy | PF | Typical efficiency | Package |
SD6900 | 30 | AC90~265 | Non-isolation + APFC
| External MOS | <±3%
| >0.9
| 93% | SOT23-6
|
Product description(SD6900)
SD6900 is designed for non-isolated LED driving with floating Buck structure. With this structure, inductor current will be sensed and closed-loop is formed with the internal error amplifier for high constant current accuracy and high input/output regulation rate. Also, high PF in full range is available as its own PFC control. Boundary Conduction mode is adopted for decreasing switching loss and improving the conversion efficiency.
SD6900 integrates various protections, such as output open circuit protection, output short circuit protection, cycle-by-cycle current limit protection, over temperature protection and VCC over voltage protection.
The start-up current and operating current are low and highlight LED can be driven with high efficiency in full range (85VAC~265VAC).
Features(SD6900)
♦Proprietary constant control method (Patent)
♦Constant current with high accuracy for LED (<±3%)<>
♦PF>0.9 in full voltage range
♦High efficiency >93% (18W)
♦Boundary-Conduction mode
♦LED short circuit protection (Patent)
♦LED open circuit protection
♦VCC over/under voltage protection
♦Over temperature protection
♦Over current protection
♦Over temperature protection, over current protection
♦For buck and the boost - buck circuit design. SOT-23-6L package
Typical application circuit(SD6900):
Block diagram(SD6900)