MBI1802 Datasheet | Macroblock

Features - 2 constant-current output channels - Constant output current invariant to load voltage change - Maximum output constant current per channel: 360 m A - Thermal protection and flag - Output current adjusted through an external resistor - Schmitt trigger input - 5V supply voltage - Package type: “Pb-free & Green” package with thermal pad Current Accuracy Between Channels < ±3% Between ICs < ±6% Conditions IOUT = 40m A ~ 360 m A @ VDS= 0.6V   Small Outline Package GD: SOP8L-150-1.27 Product Description MBI1802 is an instant On/Off LED driver for high power LED applications and exploits Precision Drive™ and All-Ways-On™ technology to enhance its output characteristics. With All-Ways-On™, MBI1802 provides users with 2-channel constant current ports. Users may adjust the output current up to 360 m A through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. Also, users can precisely adjust LED brightness from 0% to 100% via output control with Pulse Width Modulation. Alternatively, MBI1802 provides one-step current adjustment to make 25% of the output current via enabling the quarter pin ( QT ) as “Low”. Additionally, to ensure the system reliability, MBI1802 is built with Thermal Protection (TP) function and thermal pad. The TP function protects IC from over temperature (165°C). Also, the thermal pad enhances the power dissipation. As a result, a large amount of current can be sunk safely in one package. Applications - High-flux LED lighting - Automotive interior lighting Macroblock, Inc. 2014 6F-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30072, R.O.C. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock..tw -1- July 2014, VB.00 All-Ways-On TM High-Power LED Driver Typical Application Circuit VDD VLED 1 GND Rext 2 R-EXT 3 QT VDD 8 OE 7 ERR 6 5.1k-ohm 4 OUT0 OUT1 5 Figure 1 Functional...