MBI5368 Datasheet | Macroblock

Macroblock Preliminary Datasheet 8-channel x 3 Constant Current LED Sink Driver Features z 24 constant-current output channels z Constant output current invariant to load voltage change z 256-step run-time programmable output current gain control z Output current adjusted through three external resistors z Constant output current range: 10 -60 m A z Excellent output current accuracy: between channels: < ±5% (max.), and between ICs: < ±6% (max.) z 25MHz clock frequency z Schmitt trigger input z 3.3V / 5V supply voltage z Optional for “Pb-free & Green” Package Low Profile Quad Flat Pack (LQFP) GLQ: 48L (7 x 7 mm2) Current Accuracy Between Channels Between ICs < ±5% < ±6% Conditions IOUT = 10 ~ 60 m A, VDS = 0.8V Product Description MBI5368 is designed for fine pitch LED display applications and exploits Precision Drive™ technology to provide uniform and constant current sinks for driving LEDs within a large range of VF variations. In one package, MBI5368 incorporate three 8-channel drivers that output current can be adjusted through three external resistors and moreover be programmable to 256 gain steps for LED white balance MBI5368 provides users with great flexibility and small package while using surface mounted RGB LEDs to display precisely video color. Users may adjust the output current from 10 m A to 60 m A through separately external resistor Rext and 8-bit current gain control, which gives users flexibility in the color correction of LEDs. Macroblock, Inc. 2005 Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock..tw -1- March 2005, V1.02 8-channel x 3 Constant Current LED Sink Driver Applications Indoor/outdoor LED video display Typical Application Circuit Function Generator 4.5~5.5 V 47u F 20 m A Figure 1 48 47 46 45 44 43 42 41 40 39 38...