AAT3129 AAT, AAT3129 Datasheet
AAT3129
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AAT3129 Summary of contents
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... High switching frequency enables the use of small external capacitors. A low current shutdown feature disconnects the load from V and reduces quiescent current to less than 1μA. The AAT3129 is available in a Pb-free, 12-pin TSOPJW package. Typical Application V BAT 3129 ...
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Pin Descriptions Pin # Symbol Function 1 C2+ Flying capacitor 2 positive terminal. Connect a 1μF capacitor between C2+ and C2 Charge pump output. Requires 1μF capacitor connected between this pin and ground. 3 C1- Flying capacitor 1 ...
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Absolute Maximum Ratings Symbol Description V Input Voltage IN V Charge Pump Output CP V EN/SET to GND Voltage EN/SET V Maximum EN/SET to Input Voltage EN/SET(MAX) T Operating Junction Temperature Range J T Maximum Soldering Temperature (at leads, 10 ...
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... EN/SET Latch Timeout LAT I EN/SET Input Leakage EN/SET 1. The AAT3129 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 4 High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications 1 = -40° ...
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Typical Characteristics Turn- Mode (V = 4.2V; ISRC = 60mA) IN EN/SET (2V/div) CP (2V/div) I ISRC (50mA/div) 100μ μ s/div Turn- Mode (V = 2.8V; ISRC = 60mA) IN EN/SET (2V/div) CP (2V/div) I ISRC ...
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Typical Characteristics Operating Characteristics (V = 4.2V; DR, DB, and Mode (1V/div) V ISRC (1V/div) I ISRC (50mA/div) 100μ μ s/div Operating Characteristics (V = 3.6V Mode; DG and DB in 1.5X ...
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Typical Characteristics Oscillator Frequency vs. Temperature 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 -40 - Temperature (° ° vs. V ISRC 3.5V +25°C 61 ...
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Typical Characteristics Switch Resistance vs. Supply Voltage 1.4 1.2 +85°C 1.0 0.8 0.6 +25°C 0.4 0.2 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 Supply Voltage ( 1050 ...
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... Functional Block Diagram AS EN/SET Interface Functional Description The AAT3129 is a tri-mode load switch (1X) and high efficiency (1.5X or 2X) charge pump device intended for fashion color LED lighting applications. To maximize power conversion efficiency, an inter- nal sensing circuit monitors the voltage required on the constant current source output and sets the ...
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... The mode register toggles the method of update between two possibilities. Depending on the mode register setting, the AAT3129 will update the R, G, and B channels immediately or update them only when the intensity register is updated. AS ...
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Color Registers R, G, and B The individual color brightness is set using the three R, G, and B registers. The data register con- tents determine the on-time for each color channel during a PWM cycle. The first level is ...
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... Capacitor Characteristics Ceramic composition capacitors are highly recom- mended over all other types of capacitors for use with the AAT3129. Ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typi- cally has very low ESR, is lowest cost, has a small- er PCB footprint, and is non-polarized ...
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... The AAT3129 is a high-performance device that operates with a high switching frequency. To ensure optimal device performance and accommodate the fast transients generated by the AAT3129 special attention should be given to the board layout. The recommended layout is illustrated in Figure 1. The traces connecting C1 and C2 experience fast current transients ...
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... XYY = assembly and date code. 2. Sample stock is held on part numbers listed in BOLD. 14 High Efficiency 1X/1.5X/2X Charge Pump for RGB Color LED Applications Marking 1 NNXYY + 0.10 0.20 - 0.05 7° NOM 4° ± 4° 0.055 ± 0.045 0.010 Part Number (Tape and Reel) AAT3129ITP-60-T1 0.04 REF 0.45 ± 0.15 2.75 ± 0.25 3129.2007.01.1.4 2 ...
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Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves ...