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MBI6655 fiches techniques PDF

Macroblock - 1A LED Driver

Numéro de référence MBI6655
Description 1A LED Driver
Fabricant Macroblock 
Logo Macroblock 





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MBI6655 fiche technique
Macroblock
Preliminary Datasheet
MBI6655
Step-Down, High Efficiency, 1A LED Driver
Features
Maximum 1A constant output current
97% efficiency @ input voltage 12V, 350mA, 3-LED
6~36V input voltage range
Hysteretic PFM eliminates external compensation design
Settable constant output current
Integrated power switch with 0.3ohm low Rds(on)
Full protections: Start-Up/OCP/ Thermal/ LED Open-/ Short-Circuit
Only 5 external components required
Small Outline Transistor
GSB: SOT-89-5L
Small Outline Package
Product Description
MBI6655 is a step-down constant-current high-brightness LED driver to
provide a cost-effective design solution for interior/exterior illumination
applications. It is designed to deliver constant current to light up high power
GD: SOP8L-150-1.27
LED with minimum 5 external components. With hysteretic PFM control
scheme, MBI6655 eliminates external compensation design and simplifies the PCB design.
The output current of MBI6655 can be programmed by an external resistor and dimmed via pulse width modulation
(PWM) through DIM pin. MBI6655 features complete protection design to handle faulty situations. The start-up
function limits the inrush current while the power is switched on. Over temperature protection (OTP), and over
current protection (OCP) guard the system to be robust and keep the driver away from being damaged which
results from LED open-circuited, short-circuited and other abnormal events.
MBI6655 provides thermal-enhanced SOT-89 and SOP-8 packages as well to handle power dissipation efficiently.
Applications
Signage and Decorative LED Lighting
High Power LED Lighting
Constant Current Source
Macroblock, Inc. 2014
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
- 1 - Aug 2014, V1.03

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