BP9021A driver equivalent, high precision psr constant current led driver.
* Built-in 650V Power MOSFET
* Constant current control without secondary sense
and feedback circuit.
* No Auxiliary winding for sensing and supplying
* U.
* GU10/E27 LED bulb, spot light
* Other LED lighting
NP
NS
AC
BP9021A
2 VCC
NC 5
4 ROVP
NC 6
1 CS 3 GND.
The BP9021A is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyba.
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