MAP3249

MAP3249 – 4-channel LED Driver for high brightness LEDs Datasheet Version 1.3 MAP3249 4-channel LED Driver for High Brightness LEDs General Description Features MAP3249 is a 4-channel LED driver optimized for LED  5V to 28V Input Voltage Range backlight application targeting mid and large size LCD  Drive up to 4 Channels module. MAP3249 uses the boost MOSFET externally  60V FB Pin Voltage and 4-channel current sources internally for driving high  0.4V Headroom Voltage brightness White LEDs.  200mA Output Current per Channel MAP3249 has 60V absolute Max. rating FB pins and  Programmable Boost Switching Frequency input voltage is ranged from 8.5V ~ 28V and max LED  (100KHz ~ 500KHz) current is 200mA per channel.  LED Current Set by both MAP3249 has internal soft-start and various  PWM and External DC Voltage protections like output over-voltage, LED short/open,  Unused Channel Detection open schottky diode, UVLO and thermal shutdown.  Boost Over Current Protection MAP3249 has an unused channel detection function to  Output Over Voltage Protection not boost the output voltage to OVP at start-up.  LED Short / Open Protection MAP3249 is available 16 leads SOIC and E-TSSOP  Schottky Diode Open Protection with Halogen-free (fully RoHS compliant).  UVLO Applications  High Brightness white LED backlighting for LCD TVs  General LED lighting applications Ordering Information 1 Part Number Top Marking Ambient Temperature Range MAP3249SIRH ...