LV52207AXA Bi-CMOS LSI www.onsemi.com Dual channel LED Boost Driver with PWM and 1-Wire Dimming Overview The LV52207AXA is a high voltage boost driver for LED drive with 2 channels adjustable constant current sources. Feature Operating Voltage from 2.7V to 5.5V Integrated 40V MOSFET 1-Wire 255 level digital and PWM dimming Supports CABC WLP9, 1.31x1.31, 0.4mm pitch 600kHz Switching Frequency (1.31mm x 1.31mm, Amax=0.625 mm) 37.5V OVP Threshold Typical Applications LED Display Backlight Control Fig1. 5x2 LED Application ORDERING INFORMATION See detailed ordering and shipping information on page 18 of this data sheet. Semiconductor Components Industries, LLC, 2014 1 Publication Order Number : November 2014 - Rev. 1 LV52207AXA/D LV52207AXA Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Maximum supply voltage V max V 6 V CC CC l Maximum Pin voltage1 V1 max SW 40 V Maximum Pin voltage2 V2 max Other pin 5.5 V Allowable power Pd max Ta=25C *1 0.95 W Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +125 C *1 Mounted on a specified board: 70mm70mm1.6mm (4 layer glass epoxy) Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit Supply voltage range1 V op VCC 2.7 to 5.5 V CC PWM frequency Fpwm PWM pin input signal 300 to 100k Hz MIN DUTY (PWM pin) Dminpwm PWM pin input signal 0.9% Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. Electrical Characteristics Analog block at Ta=25C, VCC=3.6V, RT resistor=63.4K unless otherwise specified Ratings Parameter Symbol Conditions Unit min typ max Standby current Icc1 EN=PWM=L 0 2 A dissipation DC/DC current Device enable, switching 0.6 MHz Icc2 0.7 1.2 mA dissipation1 and no load FB Voltage Vfb LEDO1, 2=20mA 0.2 V LEDO1 LEDO2 Output Current1 Io1 LEDISET=20mA 19.6 20 20.4 mA Duty=100% LEDO1 LEDO2 LEDISET=20mA Output Current Iom1 Duty=100% 0.3 2 % Matching1 (IMAX IAVG) / IAVG LEDO1, 2 max current Imax LEDO1 LEDO2 40 mA LEDO1, 2 leak current Ilk LEDO1 LEDO2 1 A OVP Voltage Vovp SW pin over voltage threshold 36 37.5 39 V LEDO pin over voltage threshold LEDO OVP Voltage VLovp 4.2 4.5 5.0 V LEDO DC rising SWOUT ON resistance Ron IL=100mA 300 m NMOS Switch Current ILIM 1 1.5 A Limit OSC Frequency Fosc 500 600 750 kHz V High level input voltage VINH EN PWM 1.2 V CC Low level input voltage VINL EN PWM 0 0.4 V Under Voltage Lockout Vuvlo VIN falling 2.2 V EN pin output voltage Vack 0.4 V Rpullup=15k for Acknowledge Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. www.onsemi.com 2