多段恒流恒功率

    CYT3001B

    product manual

    CYT3000B is a high power factor linear constant current high voltage LED driver chip used in the field of LED lighting. The chip adopts the patented technology of constant current control to achieve constant current accuracy less than 5% of the earth. The output current can be adjusted by the external resistor R1. The chip has high power factor and low harmonic distortion.

     

    The CYT3000B has the function of automatically adjusting the output current with temperature. When the temperature is too high, the system will reduce the output current to achieve the effect of lowering the temperature. The temperature protection point can be set by the external resistor at the RTH end of the pin.

     

    CYT3000B has the function of automatic adjustment of input power. When the input voltage is too high, the output current will be reduced. The magnitude of the current reduction is set by the external resistor RD to ensure that the input power does not change with the input voltage. The system has a simple structure and various protection functions. It does not require a transformer and a high-voltage electrolytic capacitor. The high-voltage LED driver chip requires only a few peripheral components, and can realize all SMT processing, and can realize fully automated operation.

    Characteristics

    No transformers and electrolytic capacitors required

    Integrated high voltage start-up power supply

    Adjustable output current up to 80mA

    Inter-chip current deviation <±5%

    Efficiency: >90%

    Power factor >0.95

    THD: <20%

    With automatic temperature adjustment

    With automatic power adjustment

    Chip application system has no EMI problem

    Package form ES0P8

Product parameters
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model Current (mA) Package form Junction temperature point (°C) aisle Accuracy (%) Features Specifications Application note
model Current (mA) Package form Junction temperature point (°C) aisle Accuracy (%) Features Specifications Application note
CYT3000C 60 ES0P8 140 Multi-stage constant current constant power ±3% Multi-stage constant current constant power
CYT3001A 60 ES0P8 140 Multi-stage constant current constant power Inter-chip current deviation <±5% Multi-stage constant current constant power
CYT3000B 80 EOSP-8 105-140 Multi-stage constant current constant power Inter-chip current deviation <±5% Multi-stage constant current constant power
CYT3001B 80 EOSP-8 140 Multi-stage constant current constant power <±5% Multi-stage constant current constant power