EUP2589 Datasheet | Eutech Microelectronics

12 String White LED Driver With Boost Controller DESCRIPTION Features 3µA shutdown current The EUP2589 is a high power and high efficiency 12 strings in parallel and up to 18 LEDs per boost controller with 12-channel current sinker which string is ideal for large LCD backlighting applications. External PWM or DC Voltage Dimming EUP2589 uses current mode, fixed frequency Control architecture which can clamp the inductor peak current Output voltage up to 65V each cycle. The switching frequency is programmable Wide Input voltage range 4.5V to 28V by an external frequency setting resistor. It drives an Better than 1.5% LED Current Regulation external MOSFET to boost up the output voltage from Accuracy Between Strings a 4.5V to 28V input supply. The EUP2589 regulates Boost Switching frequency can be programmed the current in each LED string to the programmed by external resistor value set by an external current setting resistor. The Multiple Fault Protections EUP2589 current matching can achieve ± 1.5% and -Current Limit protection regulation accuracy can reach ±2%. -Output Short circuit detection A 3µA shutdown current and 1.0V (ILED@60m A) -Over-temperature protection feedback voltage and Maximum 65V output allows for -Output Over-voltage protection up to 18 high-power LEDs in series will greatly LED current turn off in shutdown mode improve efficiency and reduce power dissipation. Integrated UVLO/ Over Thermal protection Minimal 0.5µs LED On-Time regulation The device supports pulse width modulation (PWM) Thermal Enhanced 28pin TSSOP28 and brightness dimming and DC voltage dimming. During SOP-28 Packages digital PWM dimming, the WLED current is turned Ro HS pliant and 100% Lead (Pb)-Free on/off at the duty cycle and frequency determined by Halogen-Free the PWM signal on the PWMI pin. In DC voltage yb dimming, LEDs current turn ON/OFF R frequency ‘ GND. APPLICATIONS programmed by the capacitor from BOSC wto m LCD Monitor LED Backlighting m Vprotect...