AAT2803ISK-4.5-T1 AnalogicTech, AAT2803ISK-4.5-T1 Datasheet
AAT2803ISK-4.5-T1
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AAT2803ISK-4.5-T1 Summary of contents
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... LED with the input voltage. AnalogicTech's AS (Advanced Simple Serial Control™) serial digital input is used to enable, disable, and set current for each LED with a 16-level logarithmic scale plus four low- current settings down to 50μ ...
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Pin Descriptions Pin # Symbol Function 1 C1- Flying capacitor 1 negative terminal. 2 C1+ Flying capacitor 1 positive terminal. Connect a 1μF capacitor between C1+ and C1-. 3 VOUT_FL Flash output voltage. Requires 1μF capacitor connected between this pin ...
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Absolute Maximum Ratings Symbol Description V Input Voltage IN V EN/SET to GND Voltage EN/SET T Operating Junction Temperature Range J T Maximum Soldering Temperature (at leads, 10 sec) LEAD Thermal Information 2 Symbol Description P Maximum Power Dissipation D ...
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Electrical Characteristics V = 3.6V OUT 1 2 Typical values are T = 25°C. A Symbol Description V Operation Range IN I Operating Current CC I Shutdown Current SHDN I I ...
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Electrical Characteristics V = 3.6V OUT 1 2 Typical values are T = 25°C. A Symbol Description T EN/SET Low Time EN/SET LO T Minimum EN/SET High Time EN/SET _ HI ...
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Typical Characteristics–Flash Driver Charge Pump Section Output Voltage vs. Output Current (V = 4.5V; EN_FL = V ; EN/SET = GND) OUT_FL IN 4.60 4.56 3.6V 4.52 4.48 3.0V 3.3V 4.44 2.7V 4.40 0.1 1.0 10.0 Output Current (mA) Start-Up ...
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Typical Characteristics–Flash Driver Charge Pump Section Output Ripple Voltage vs. Time (I = 50mA @ V = 3.5V) OUT (10mV/div) V OUT (10mV/div (10mA/div) 500ns/div Supply Current vs. Supply Voltage 3. 0μA OUT ...
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Typical Characteristics–White LED Backlight Driver Section Unless otherwise noted 3.6V Efficiency vs. Supply Voltage 100 4.1mA 10.2mA 2.8 3.0 3.2 3.4 3.6 Supply ...
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Typical Characteristics–White LED Backlight Driver Section Unless otherwise noted 3.6V Load Characteristics (V = 3.8V; 1.5X Mode; 15mA Load (40mV/div) CP (40mV/div) V SINK (40mV/div) 500ns/div Load Characteristics (V = 4.0V; 1.5X Mode; ...
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Typical Characteristics–White LED Backlight Driver Section Unless otherwise noted 3.6V vs. V LAT IN 350 300 -40°C 250 200 150 25°C 100 50 0 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 ...
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Functional Block Diagram EN_FL Cwire EN/SET Interface Functional Description The AAT2803 is a dual charge pump targeted for backlight and flash applications. The charge pump for white LED applications is a tri-mode load switch (1X) and ...
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Constant Current Output Level Settings The constant current sink levels for the white LED backlight (D1 to D6) are set via the serial interface according to a logarithmic scale where each code is 1dB lower than the previous code. In ...
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AS Cwire Serial Interface Timing 2 EN/SET Address Data Reg 1 Data Reg 2 AS Cwire Addressing 2 Five addresses are available to enable all of the part's functionality. Two 4-bit registers control the main and sub-channels, giving 16 settings ...
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Max Current Register Settings—Address 4 Data Max Current 1 20mA Max Scale 2 30mA Max Scale 3 15mA Max Scale 4 Low Current Mode Low Current Register Settings—Address 5 Data D1-D4 (mA ...
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Capacitor Characteristics Ceramic composition capacitors are highly recom- mended over all other types of capacitors for use with the AAT2803. Ceramic capacitors offer many advantages over their tantalum and aluminum elec- trolytic counterparts. A ceramic capacitor typically has very low ...
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... Phone (408) 737-4600 Fax (408) 737-4611 16 Six-Channel White LED Backlight Marking Part Number (Tape and Reel) 1 OFXYY QFN44-24 0.305 ± 0.075 R0.030Max 2.7 ± 0.05 Bottom View 0.214 ± 0.036 Side View Charge Pump with Flash 2 AAT2803ISK-4.5-T1 Pin 1 Identification 1 6 2803.2006.04.1.5 ...