Datasheet 6-Channel White LED Driver for up to 72 LEDs BD6583MUV-A General Description Key Specifications BD6583MUV-A is white LED driver IC with PWM Operating power supply voltage range: 2.7V to 22.0V step-up DC/DC converter that can boost max 42.5V LED Maximum Current: 25mA (Max.) and current driver that can drive max 25mA. The wide Quiescent Current 1: 0.6A (Typ.) and precision brightness can be controlled by external Quiescent Current 2: 4.6A (Typ.) PWM pulse. BD6583MUV-A has very accurate current Operating temperature range: -30 to +85 drivers, and it has few current errors between each strings. So, it will be helpful to reduce brightness spots Package W(Typ.) x T(Typ.) x H(Max.) on the LCD. Small package type is suited for saving space. Features High efficiency PWM step-up DC/DC converter (fsw=1MHz), max efficiency 93% High accuracy & good matching (3%) current drivers 6ch * Drive up to 12 in series, 6 strings in parallel =72 * white LEDs ( white LED Vf=3.5Vmax) VQFN024V4040 Rich safety functions 4.00mm x 4.00mm x 1.00mm Over-voltage protection (OVP) Over current limit Figure 1. Package External SBD open detect Thermal shutdown Applications All middle size LCD equipments backlight of Notebook PC, portable DVD player, car navigation systems, etc. Typical Application Circuit Battery 4.7H 10LED x 6parallel 10F 2.2F RTR020N05 SW FAILSEL VDET SENSP 100m SENSN Power RSTB BD6583MUV-A ON/OFF LED1 PWMPOW LED2 PWMDRV 200Hz PWM LED3 VBAT LED4 VREG LED5 1F GND GNDG NDG ND TEST ISETH ISETL LED6 Each 20mA 24k Figure 2. Typical Application Circuit Figure 2. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays www.rohm.com TSZ02201-0G3G0C400180-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/32 TSZ2211114001 07.Nov.2016 Rev.002Datasheet BD6583MUV-A Absolute Maximum Ratings (Ta=25 ) Parameter Symbol Ratings Unit Condition TEST,VREG,SENSP,SENSN,SW,RSTB, Terminal voltage 1 VMAX1 7 V PWMPOW,PWMDRV,FAILSEL,ISETH,ISETL Terminal voltage 2 VMAX2 25 V LED1, LED2, LED3, LED4, LED5, LED6, VBAT Terminal voltage 3 VMAX3 50.5 V VDET Power dissipation 1 Pd1 500 mW *1 Power dissipation 2 Pd2 780 mW *2 Power dissipation 3 Pd3 1510 mW *3 - Operating temperature range Topr -30 to +85 - Storage temperature range Tstg -55 to +150 (*1) Reduced 4.0mW/ With Ta>25 when not mounted on a heat radiation Board. 2 (*2) 1 layer (ROHM Standard board) has been mounted. Copper foil area 0mm , When its used by more than Ta=25, its reduced by 6.2mW/. (*3) 4 layer (JEDEC Compliant board) has been mounted. 2 2 Copper foil area 1layer 6.28mm , Copper foil area 2 to 4layers 5655.04mm , When its used by more than Ta=25, its reduced by 12.1mW/. Recommended Operating Rating (Ta=-30 to +85 ) Ratings Parameter Symbol Unit Condition Min. Typ. Max. Power supply voltage VBAT 2.7 12.0 22.0 V Electrical Characteristics (Unless otherwise specified, VBAT=12V, RSTB=2.5V, Ta = +25 ) Limits Parameter Symbol Unit Condition Min. Typ. Max. FAILSEL,PWMDRV Terminal Threshold voltage (Low) VthL 0 - 0.2 V Threshold voltage (High) 1 VthH1 1.4 - 5.0 V VBAT>5.0V Threshold voltage (High) 2 VthH2 1.4 - VBAT V VBAT<5.0V Terminal input current Iin - 8.3 14.0 A Input=2.5V PWMPOW Terminal Low input voltage range PWML 0 - 0.2 V High input voltage range1 PWMH1 1.4 - 5.0 V VBAT>5.0V High input voltage range2 PWMH2 1.4 - VBAT V VBAT<5.0V PWM pull down resistor PWMR 300 500 700 k RSTB Terminal Low input voltage range RSTBL 0 - 0.2 V High input voltage range1 RSTBH1 2.25 2.5 5.0 V VBAT>5.0V High input voltage range2 RSTBH2 2.25 2.5 VBAT V VBAT<5.0V Current consumption IRSTB - 89 134 A RSTB=2.5V, LED1-6=3V Regulator VREG voltage VREG 4.0 5.0 6.0 V No load Under voltage lock out UVLO 2.05 2.25 2.65 V www.rohm.com TSZ02201-0G3G0C400180-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/32 TSZ2211115001 07.Nov.2016 Rev.002