AAT3104IJQ-1-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3104IJQ-1-T1 Datasheet
AAT3104IJQ-1-T1
Related parts for AAT3104IJQ-1-T1
AAT3104IJQ-1-T1 Summary of contents
Page 1
ChargePump TM General Description The AAT3104 is a charge-pump based, current-source white LED driver capable of driving one to four LEDs up to 30mA, each. It automatically switches between 1x mode and 2x mode to maintain the highest efficiency and ...
Page 2
ChargePump ChargePump TM TM Pin Descriptions Pin# Name Description LED2 Current Source Output the output of LED2 current source. Connect LED2’s anode and its cathode to GND. LED1 Current Source Output the ...
Page 3
ChargePump ChargePump TM TM Absolute Maximum Ratings Symbol Description OUT C+ IN, C+, C-, OUT, D1, D2, D3, and D4 Pin Voltages to GND D1...4 V EN/SET Pin Voltage ...
Page 4
ChargePump ChargePump TM TM Electrical Characteristics 3.6V 1μ 1μ OUT = 25°C. Symbol Description Input Power Supply V Input Voltage Range IN I Quiescent Current Load Operating ...
Page 5
ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 1μ OUT 1X Mode Turn-On Waveform (V = 4.2V; Load = 120mA LED (2V/div (200mA/div) V ...
Page 6
ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 1μ OUT Current Matching vs. Temperature (AAT3104-2; Code = 1) 33.0 32.5 32.0 31.5 31.0 30.5 30.0 29.5 29.0 -40 -15 10 ...
Page 7
ChargePump ChargePump TM TM Typical Characteristics V = 3.6V 1μ OUT No Load Operating Current vs. Input Voltage (2x Mode) 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 2.7 3.1 3.5 ...
Page 8
ChargePump TM Functional Block Diagram IN EN/SET Functional Description The AAT3104 is a low-cost charge-pump solution designed to drive up to four white LEDs. The charge pump operates from a 2.7V to 5.5V power source and converts it to voltage ...
Page 9
ChargePump TM current reduces system noise and improves LED reliabil- ity. The S Cwire interface relies on the number of rising 2 edges to the EN/SET pin to set the register. A typical write protocol is a burst of EN/SET ...
Page 10
ChargePump TM 30.0 22.5 15.0 7 Wire Interface Data Code Figure 2: AAT3104-1 Current Control Profile. Applications Information LED Selection ...
Page 11
ChargePump TM to outputs D1 through for a given constant current set- ting. Depending on the combination of V sensed at the current sources, the device will operate in load switch mode. When any one of the voltages sensed at ...
Page 12
ChargePump TM Input Voltage 2.7V to 5.5V EN/SET S 2 Cwire Interface Figure 4: Higher Current, Single LED Application. Input Voltage > DROP EN/SET 2 S Cwire Interface Equivalent Series Resistance ESR is an important characteristic ...
Page 13
ChargePump ChargePump TM TM Evaluation Board Schematic J1 DC+ VIN 10uF DC - JP5 C1 1µF Figure 6: AAT3104 Evaluation Board Schematic. Figure 6: AAT3104 Evaluation Board Top Layer. 3104.2008.09.1.0 3104.2008.09.1.0 Low Cost 1x/2x ...
Page 14
... End View PRODUCT DATASHEET PRODUCT DATASHEET AAT3104178 AAT3104178 Part Number (Tape and Reel) 1 AAT3104IJQ-1-T1 AAT3104IJQ-2-T1 4° ± 4° 3104.2008.09.1.0 3104.2008.09.1.0 2 ...
Page 15
ChargePump ChargePump TM TM Advanced Analogic Technologies, Inc. 3230 Scott Boulevard, Santa Clara, CA 95054 Phone (408) 737-4600 Fax (408) 737-4611 © Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied ...