Recurring problem on a PID controller ,LED driver BP 9022a fails i think due to power fluctuations, cant source locally in RSA from reputable "bricks & mortar "company, can anyone suggest an equivalent even if pin-outs not same.?
Quote from data sheet. "It uses patent pending source driver architecture and demagnetization sensing technology." I don't know...looks pretty bulletproof to me.
Built-in 650 volt power mosfet
LED short and open circuit protection
CS resistor under short circuit protection.
VCC under voltage protection.
Thermally regulated.
Constant current control
Without secondary sense and feedback circuit.
Let's see how you hooked it up, do you have schematic?
I have the data sheet