MBI1802 Datasheet, PDF (1/11 Pages) List of Unclassifed Manufacturers – All-Ways-OnTM High-Power LED Driver

Macroblock
Preliminary Datasheet
MBI1802
All-Ways-On^TM High-Power LED Driver
Features
z 2 constant-current output channels
z Constant output current invariant to load voltage change
z Maximum output constant current: 360 mA
z Thermal protection and report
z Output current adjustment
z Schmitt trigger input
z 5V supply voltage
z Package type: SOP8 with thermal pad
Current Accuracy
Between Channels
Between ICs
< ±3%
< ±6%
Conditions
I_OUT = 40mA ~ 360 mA
@ V_DS= 0.6V
Product Description
MBI1802 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.
With All-Ways-On™, MBI1802 easily provides users with a consistent current source in their system design. Users
may adjust the output current up to 360 mA through an external resistor, R_ext, 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 a
quarter of the output current via enabling the QUAD pin as “High”.
Additionally, to ensure the system reliability, MBI1802 is built with TP (Thermal Protection) function and thermal
pad. The TP function can protect IC from over temperature (165°C) and the thermal pad can enhance the power
dissipation. As a result, a large amount of current can be handled safely in one package.
Applications
z High-Flux LED Lighting
z Automotive Interior Lighting
Macroblock, Inc. 2005
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: [phone], FAX: [phone] E-mail: [e-mail]
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January 2005, V1.00