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| Preliminary Macroblock, Transformerless AC/DC Constant Current Driver Features n n n n n Directly powered by 110 VAC Constant output current and Transformerless, 18 mA Drive one chain of LEDs, VOUT up to 60 V while applying 110V AC Reliable technology Small footprint 24-pin SOP24 package MBI6001 January 2003,V1.0i SOP24 - P - 300 - 1.27 Description With the features of transformerless and small footprint, MBI6001 constant current driver is specifically designed for LED lighting. The MBI6001 can be directly powered by 110 VAC and provide 18 mA constant current to the LEDs. Applications n n n n LED Lamps LED Sign and Channel Letter Indication Sign Low Power LEDs Lighting, < 1.5W Typical Application Circuit 1 AC IN~ OUT + DA 9 7 110VAC 24 AC IN~ R3 R1 OUT PC 6 11 To Pin 10 VOUT: Voltage drop between Pin 9 and Pin 11. 10 REF R2 Note: There is no pin being connected to earth ground. OMacroblock, Inc. 2003 Floor 6-4, No. 18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC. TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock.com.tw -1- MBI6001-V1.0i Pin Configuration AC IN ~ NC HV HV HV PC DA NC OUT+ REF OUTNC Transformerless AC/DC Constant Current Driver Ordering Information 24 23 22 21 20 19 18 17 16 15 14 13 AC IN ~ NC HV NC HV HV NC REF REF NC HV HV 1 2 3 4 5 6 7 8 9 10 11 12 Part MBI6001N1D Blink NA VAC Range 100V ~ 120V Package-Pin SOP-24 MBI6001N1D Pin Description (SOP24) Pin Name I/O Function 1 AC IN ~ In AC voltage input node1. 2 NC No connection. 3 HV No connection. 4 HV No connection. 5 HV No connection. 6 PC In Peak current adjust. 7 DA In Duty adjust. 8 NC No connection. 9 OUT+ Out Connected to LED anode (+). 10 REF Internal reference voltage low. 11 OUTOut Connected to LED cathode (-). 12 NC No connection. 13 HV No connection. 14 HV No connection. 15 NC No connection. 16 REF Internal reference voltage low. 17 REF Internal reference voltage low. 18 NC No connection. 19 HV No connection. 20 HV No connection. 21 NC No connection. 22 HV No connection. 23 NC No connection. 24 AC IN ~ In AC voltage input node2. Note 1: These Pins should be kept away from touching by hands. (High voltage 110VAC) -2- MBI6001-V1.0i Transformerless AC/DC Constant Current Driver Environmental Specification Operation Temperature Range ---- -20C to 50C (LEDs are set in the temperature range:-20 Storage Temperature Range ----- -40C to 150C Cooling--------------------------------- Free Air or Thermally Conductive Adhesive to 70) Absolute Maximum Ratings AC Input Voltage----------------- 400V, transient Power Dissipation ------------------------- 1.5 W Junction Temperature ---------------------120C Electrical Characteristics (VAC= 110V, Ta = 25C, unless otherwise noted) PARAMETER AC Input Voltage Output Voltage Output Current SYMBOL VAC VOUT I OUT MIN 100 8 TYP 110 18 MAX 120 60 UNIT S V rms V mA NOTE See Applications Information See Applications Information -2- MBI6001-V1.0i Output Current - IOUT Transformerless AC/DC Constant Current Driver Applications Information With a selected resistor R1 being connected between DA and OUT- (refer to Typical Application Circuit), a constant output current IOUT can be produced. However, IOUT will vary with VOUT. While VOUT is changed due to different number of LEDs being used and less than 60V, IOUT will vary within the range of 15%. (see Fig. 1) Fig. 1- IOUT vs. VOUT (@ 110 VAC, Ta= 25 C) 26 IOUT (mA) 22 18 14 10 9 15 30 45 60 VOUT (V) Surface Temperature vs. VOUT The temperature on the surface of package will be around 60 C when VOUT is smaller than 60V. Temperature will rise up while VOUT is getting larger. (see Fig. 2) Fig. 2- Temp. vs. VOUT (@ 110 VAC, Ta= 25 C) 100 TEMP (C) 80 60 40 20 9 15 30 45 60 VOUT (V) -3- MBI6001-V1.0i Line Regulation Transformerless AC/DC Constant Current Driver IOUT will vary obviously with AC Input voltage. For instance, at VOUT = 50 V, IOUT will increase 20% while input voltage varies from 110 VAC to 100 VAC, but decrease 15% while input voltage varies from 110 VAC to 120 VAC. For input voltage is usually staying at lower than 100VAC, it is recommended to lower down the VOUT in the application. Otherwise, IOUT will rise up very quickly and the surface temperature of package will be getting higher than 90C. LEDs Selection Consideration MBI6001 provides constant average output current to drive LEDs. The output to LEDs is actually a train of current pulses. Their peak value can be adjusted by a resistor R2 which connects from PC to V-. (refer to Typical Application Circuit) It is recommended to select LEDs with higher peak forward current IF(peak). Cautions MBI6001 is directly power supplied by 110V AC. There are several pins with high AC voltage. Please don't touch any pin by hand(s) after voltage in. Also, it is important to keep preventing pins from short-circuit. -4- MBI6001-V1.0i Outline Drawings SOP24 - P - 300 - 1.27 Transformerless AC/DC Constant Current Driver -5- |
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