SC5010 High Effi ciency 8-Channel LED Driver with 2 I C Interface and Phase-Shifted PWM Dimming POWER MANAGEMENT Features Description VIN Range 4.5V to 27V, VOUT Range Up to 50V The SC5010 is an 8-channel high-precision, high-effi ciency Step-up (Boost) Controller step-up (Boost) LED driver for backlight applications. It fea- Excellent Transient Response tures wide input voltage range (4.5V to 27V) , fl exible output Programmable Switching Frequency configuration, wide analog and PWM dimming range, Linear Current Sinks phase shifting and fading. It also features video signal syn- 2 8 Strings, up to 30mA/String chronization (VSYNC), I C interface, and numerous protec- Current Matching 1% tion features. An optional disconnect p-MOSFET provides Current Accuracy 1.5% true load disconnection and inrush current limiting. PWM Dimming String-by-String Phase Shifting The boost controller, with programmable switching fre- Input Dimming Frequency 100Hz-30kHz quency from 200kHz to 2.2MHz, maximizes effi ciency by User Selectable 9 or 10 Bits Dimming Resolution dynamically minimizing the output voltage while maintain- Optional Synchronization to VSYNC/HSYNC Signal ing LED string current accuracy. It provides excellent line 5-bit Analog Dimming and load response with no external compensation compo- Optional External p-MOSFET Disconnect Switch nents. Each linear current sink is matched within 1% for True Load Disconnect and Inrush Current Limiting superb lighting uniformity, and the accuracy of each string 2 I C Interface current is 1.5%. An external resistor adjusts the current Fault Status Open/Short LED, UVLO, OTP from 10-30mA per string. It also features PWM dimming Device Control SYNC Freq, PLL Setting resolution of 9 or 10 bits (user selectable) over dimming Protection Features frequency from 100Hz to 20kHz, synchronized to the SYNC Open/Shorted LED(s) and adjustable OVP signal or the boost oscillator. String-by-string phase shifting Over-Temperature and UVLO Shutdown Protection reduces the demand on the input/output capacitance, 4 X 4(mm) 28-pin QFN Package decreases EMI, and improves dimming linearity. Applications SC5010 is available in a low-profi le, thermally enhanced, Notebook PCs, UMPC, LCD Monitors, and Tablet PCs 4 X 4 X 0.6(mm) QFN 28-pin package. Typical Application Circuit D1 V up to 50V OUT L1 Q2 2.2 H (Optional) C2 4.7 F V =4.5 to 27V DRVP DRVN Q1 IN C5 VIN CS R1 C1 R4 SC5010 R2 UVLO V = 4.5 to 5.5V R8 CC OVP VCC R9 R3 FLT FLT IO1 EN EN IO2 SDA 2 For I C SCL IO 3 SYNC SYNC Up to IO 4 PWMI PWMI 30mA/CH C3 IO5 BG R6 R5 IO 6 SCP IO7 R10 FSET R11 IO8 ISET AGND C4 R7 PGND CPLL 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 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 IS31LT3350-V1SDLS2-EB3CH