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MBI6804 Dataheets PDF



Part Number MBI6804
Manufacturers Macroblock
Logo Macroblock
Description Two Step Dimmable Isolated AC/DC LED Driver
Datasheet MBI6804 DatasheetMBI6804 Datasheet (PDF)

Macroblock Preliminary Datasheet MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Features  Constant current LED driver  Primary side regulation without photocoupler  Built-in active power factor correction  Quasi-resonant switching  Universal input voltage range  Support up to 50W output  Full protections: Thermal shutdown VDD over voltage (OVP) Under voltage lock-out (UVLO) LED open-/short- circuit Current sensing resistor open/short-circuit Compensating capacitor open/short-circ.

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Macroblock Preliminary Datasheet MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Features  Constant current LED driver  Primary side regulation without photocoupler  Built-in active power factor correction  Quasi-resonant switching  Universal input voltage range  Support up to 50W output  Full protections: Thermal shutdown VDD over voltage (OVP) Under voltage lock-out (UVLO) LED open-/short- circuit Current sensing resistor open/short-circuit Compensating capacitor open/short-circuit  Available in SOP-8 package  2 steps dimmable by input voltage toggling  High 2nd step output current accuracy  Package MSL Level : 3 Product Description MBI6804 is a universal input AC-DC converter designed to deliver constant current with primary side regulation (PSR) control. The built-in active power factor correction circuit maintains high power factor over a wide input voltage range. MBI6804 is optimized for applications of output power up to 50 Watt, and the efficiency is enhanced with quasi-resonant switching technique. MBI6804 is also featured with under voltage lock-out (UVLO), over temperature protection (OTP), LED open-circuit protection and LED short-circuit protection to protect the converter from being damaged accidentally. MBI6804 is specifically designed with current sensing resistor short protection to prevent MOSFET over-current and transformer saturation caused by manufacturing defect such as solder splash or abnormal operation such as accidental short-circuit by earthquake. Applications  T8 light tube LED alternative solutions  E26/E27 light bulb LED alternative solutions  PAR light LED alternative solutions  External LED power supply ©Macroblock, Inc., 2015 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: [email protected] -1- July 2015, V3.00 MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Typical Application Circuit Fig.1 Typical application circuit of MBI6804 Functional Diagram Fig.2 Functional diagram of MBI6804 -2- July 2015, V3.00 MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Pin Configuration VDD 1 COMP 2 CDIM 3 RDIM 4 MBI 6804 8 GATE 7 CS 6 GND 5 VS Fig. 3 Pin configuration of MBI6804 Pin Description Pin VDD COMP CDIM RDIM VS GND CS GATE Number 1 2 3 4 5 6 7 8 Description Supply voltage terminal Terminal to connect the compensator Terminal to connect the Cdim capacitor Terminal to connect the Rdim resistor Terminal to connect the sensing circuit of the auxiliary winding voltage Ground terminal Terminal to connect the MOSFET current sensing resistor Terminal to connect the gate of the external MOSFET July 2015, V3.00 -3- MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Absolute Maximum Ratings NOTE: Operations above the maximum ratings may cause device failure or reduce device reliability. Characteristics Supply voltage CS pin input voltage VS pin input voltage COMP pin input voltage Gate pin output voltage CDIM pin input voltage RDIM pin input voltage Junction temperature Operating ambient temperature Storage temperature Human body mode ESD protection Machine mode Power dissipation (On 4 layer PCB, Ta=25°C) Thermal resistance (By simulation, on 4 layer PCB)* Symbol VDD VCS VVS VCOM VGATE VCDIM VRDIM TJ,MAX TOPR TSTG HBM(MIL-STD_833H METHOD 3015.8) MM(ANSI/ESD S5.2-2009) PD Rth(j-a) Min -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -0.3 -40 -55 - - - - *The PCB size is 76.2mm x 114.3mm in simulation. Please refer to JEDEC JESD51. Max 22 7 7 7 16 7 7 150** 85 150 Class 3A (5KV) Class M4 (450V) 3.13 72.1 Unit V V V V V V V °C °C °C - - W °C/W ** Operation at the maximum rating for extended periods may reduce the device reliability; therefore, the suggested junction temperature of the device is under 125°C. Note: The performance of thermal dissipation is strongly related to the size of thermal pad, thickness and layer numbers of the PCB. The empirical thermal resistance may be different from simulative value. Users should plan for expected thermal dissipation performance by selecting package and arranging layout of the PCB to maximize the capability. July 2015, V3.00 -4- MBI6804 Two Step Dimmable Isolated AC/DC LED Driver Electrical Characteristics Test condition: VDD=18V, CIN=10μF, and TA=25°C unless otherwise specified. Characteristics Symbol Conditions Min Supply Voltage Continuous operating voltage Start-up voltage Under-voltage lockout VDD over-voltage protection Operating current Stand-by current VOP VSTART_UP VUVLO VDD-OVP IDD-OP IDD-ST - Start-up UVLO - VDD=18V,CL=1nF, FSW=20kHz VDD=18V,CL=1nF, FSW=120kHz IDD before start-up 18 - - - Error Amplifier Reference Voltage COMP Pre-charge Voltage COMP Clamping Voltage Maximum COMP Charging Current VREF ∆VPC VCLAMP ICOMP At first start up - 1.176 - Current Sense Current Limit Threshold Voltage VCL - 0.9 Voltage Sense VS Pin Sourcing Current ISource_VS VS=-0.3V -- Gate Driver Output high voltage Output low voltage.


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