MBI1804

Macroblock Datasheet MBI1804 All-Ways-OnTM High-Power LED Driver Features z 4 constant-current output channels z Constant output current invariant to load voltage change z Maximum output constant current per channel: 240mA z Excellent output current accuracy: between channels: <±3% (max.), and between ICs: <±6% (max.) z Output current adjusted through an external resistor z Schmitt trigger input z 5V supply voltage z Package type: “Pb-free & Green” SOP8 with thermal pad Small Outline Package GDGD: :SSOOPP88-1L5-01-15.027-1.27 Current Accuracy Between Channels Between ICs < ±3% < ±6% Conditions IOUT = 40 ~ 240 mA Product Description MBI1804 is an instant On/Off LED driver for high power LED applications and exploits PrecisionDrive™ and All-Ways-On™ technology to enhance its output characteristics. At MBI1804 output stage, four regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations. With All-Ways-On™, MBI1804 provides users 4-channel constant current ports. Users may adjust the output current from 40 mA up to 240mA through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via output enable ( OE ) with Pulse Width Modulation. Additionally, to ensure the system reliability, MBI1804 is built with TP (Thermal Protection) function and thermal pad. The TP function pro...