High Efficiency White LED Driver

The MP1521 is a constant-current Boost Regulator This IC has three individual current-sensing feedbacks, which are ideal for driving multiple strings of series connected LEDs The OLS pin is designed for detecting loose or open LED connections. The IC uses a peak current, constant minimum off-time architecture. The feedback pins measure voltage across sense resistors in series with the LED strings. When supplying a bias current of 20mA, the voltage drop across the sense resistor is only 0.4V to minimize power loss. Either a DC voltage or a PWM signal at the BRT/PWM input CAN control the LED brightness. The MP1521 has an on board Power MOSFET Switch that is protected by current limit, open load shutdown, thermal shutdown, and under voltage lockout.
By MPS
MP1521 's PackagesMP1521 's pdf datasheet
MP1521EK MSOP
MP1521EQ QFN




MP1521 Pinout, Pinouts
MP1521 pinout,Pin out
This is one package pinout of MP1521,If you need more pinouts please download MP1521's pdf datasheet.

MP1521 Application circuits
MP1521 circuits
This is one application circuit of MP1521,If you need more circuits,please download MP1521's pdf datasheet.


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