MP3389EY TSSOP28

توضیحات

High Efficiency and Small Size

5V to 28V Input Voltage Range

Balanced Driver for 12 Strings of WLEDs Maximum 60mA for Each String

2.5% Current Matching Accuracy Between
Strings
Programmable Switching Frequency
PWM or DC Input Burst PWM Dimming
Open and Short LED protection
Programmable Over-voltage Protection
Under Voltage Lockout
Thermal Shutdown
28-pin TSSOP and 28-pin SOIC Package

The MP3389 is a step-up controller with 12-
channel current sources designed for driving
the WLED arrays for large size LCD panel
backlighting applications.
The MP3389 uses current mode, fixed frequency
architecture. The switching frequency is
programmable by an external frequency setting
resistor. It drives an external MOSFET to boost
up the output voltage from a 5V to 28V input
supply. The MP3389 regulates the current in
each LED string to the programmed value set by
an external current setting resistor