SC5010H High Efficiency 8-Channel LED Driver with 2 I C Interface and Phase-Shifted PWM Dimming POWER MANAGEMENT Features Description V Range 4.5V to 27V, V Range Up to 50V The SC5010H is an 8-channel high-precision, high-ecffi iency IN OUT Step-up (Boost) Controller step-up (Boost) LED driver for backlight applications. It fea- Ultra-Fast Transient Response tures wide input voltage range (4.5V to 27V) , efl xible output Integrated Soft-start configuration, wide analog and PWM dimming range, Programmable Switching Frequency phase shifting and fading. It also features video signal syn- 2 Linear Current Sinks chronization (VSYNC), I C interface, and numerous protec- 8 Strings, up to 50mA/String tion features. An optional disconnect p-MOSFET provides Current Matching 1% true load disconnection and inrush current limiting. Current Accuracy 2% The boost controller, with programmable switching fre- PWM Dimming quency from 200kHz to 2.2MHz, maximizes efficiency by String-by-String Phase Shifting dynamically minimizing the output voltage while maintain- Input Dimming Frequency 100Hz-30kHz ing LED string current accuracy. It provides excellent line User Selectable 9 or 10 Bits Dimming Resolution and load response with no external compensation compo- Optional Synchronization to VSYNC/HSYNC Signal nents. Each linear current sink is matched within 1% for Optional External p-MOSFET Disconnect Switch superb lighting uniformity, and the accuracy of each string True Load Disconnect and Inrush Current Limiting 2 current is 2%. An external resistor adjusts the current from I C Interface 10-50mA per string. It also features PWM dimming resolu- Fault Status Open/Short LED, UVLO, OTP tion of 9 or 10 bits (user selectable) over dimming frequency Device Control SYNC Freq, PLL Setting from 100Hz to 20kHz, synchronized to the SYNC signal or Protection Features the boost oscillator. String-by-string phase shifting reduces Open/Shorted LED(s) and adjustable OVP the demand on the input/output capacitance, decreases Over-Temperature and UVLO Shutdown Protection EMI, and improves dimming linearity. 4 X 4 X 0.6 (mm) 28-pin QFN Package Applications SC5010H is available in a low-profile, thermally enhanced, 4 X 4 X 0.6(mm) QFN 28-pin package. Notebook PCs, UMPC, LCD Monitors, and Tablet PCs Typical Application Circuit D 1 V up to 50V O U T L1 Q 2 (O ptional) C 2 D R V P Q 1 V =4.5 to 27V D R V N IN C 5 V IN C S R 1 C 1 R 4 SC5010H R 2 U V LO R 8 V C C = 4.5 to 5.5V O V P V C C R 9 R 3 FLT FLT IO 1 E N E N IO 2 S D A 2 For I C S C L IO 3 S Y N C S Y N C U p to IO 4 P W M I P W M I 50m A /C H C 3 IO 5 B G R 6 R 5 IO 6 S C P IO 7 R 10 FS E T IO 8 R 11 IS E T A G N D C 4 R 7 P G N D C P LL Revision 1.0 2011 Semtech Corporation 1X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for LED Lighting Drivers category: Click to view products by Semtech manufacturer: Other Similar products are found below : LV5235V-MPB-H MB39C602PNF-G-JNEFE1 FAN5701UMP20X FAN5702UMP30X MIC2871YMK-T5 MP1518DJ-LF-P MP3202DG- LF-P MP3304BDD-LF-P MP3306EG-LF-P MP3398AGY MP4033GK AL1676-10BS7-13 AL1676-20AS7-13 MX877RTR NCL30085BDR2G ICL8201 IS31BL3506B-TTLS2-TR PAM2841GR A8519KLPTR-T FAN5701UMP08X FAN5702UMP20X AL3157F-7 AL8807BQMP-13 LV52204MTTBG TLD1120EL MP2488DN-LF MP24893DQ-LF-P MP24894GJ-P MP24895GJ-P MP3308DL-LF-Z MP3393EF-LF MP3394SGF MP3802DQ-LF-P MP4008GS MP4031GS MP4032-1GS MP4034GS MP46885DN-LF SLG7NT4082V SLG7NT4082VTR PCA9955BTWQ900J TLD5095EL LED6001TR STP4CMPQTR BD1604MVV-E2 MC10SX1130DG MAX16832CASAT MAX16814CATP+ NCL30086BDR2G NCL30088BDR2G