AAT2833IBK-T1 AnalogicTech, AAT2833IBK-T1 Datasheet
AAT2833IBK-T1
Related parts for AAT2833IBK-T1
AAT2833IBK-T1 Summary of contents
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... RGB applications. The high conver- sion efficiency and high level of integration make the AAT2833/34 an optimal solution for battery life and size-critical applications. AnalogicTech Cwire™ (Advanced Simple Serial Control™) serial digital interface is used to enable, disable, and set current levels for all of the light emitting diodes (LEDs) ...
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Pin Description Pin # Symbol 1 BL3 2 BL2 3 BL1 4 AGND 5, 17, 18, 19, 20 N/C 6 EN/SET C2+ 11 C2- 12 OUT C1+ 15 C1- 16 ...
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Absolute Maximum Ratings T = 25°C, unless otherwise noted. A Symbol Description V [OUT, IN, BL1, BL2, BL3, BL4, BL5, BL6 GND N V [C1+, C2+] to GND N V [EN/SET, BSET, C1-, C2-] to GND ...
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Electrical Characteristics V = 3.6V 4.7µ 1µ values are T = 25°C. A Symbol Description Charge Pump Section V IN Operating Supply Voltage Range Operating Supply Current IN ...
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Electrical Characteristics V = 3.6V 4.7µ 1µ values are T = 25°C. A Symbol Description EN/SET Logic Control V EN/SET Input Low Threshold Voltage ENS(L) V EN/SET Input High Threshold Voltage ...
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Typical Characteristics AAT2833 Backlight Section Efficiency 100 30mA/Channel 2.1mA/Channel 40 30 2.7 3.1 3.5 3.9 4.3 Input Voltage (V) 1X Mode Hysteresis vs. Current Settings 500 450 400 350 300 250 200 150 100 50 ...
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Typical Characteristics EN/SET Latch Timeout vs. Input Voltage 500 450 400 25°C 85°C 350 300 250 200 150 2.7 3.1 3.5 3.9 4.3 Input Voltage (V) Turn Mode Backlight (30mA/channel; Address 0, Data 16 EN/SET ...
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Typical Characteristics Operating Characteristics (V = 3.4V; 1.5X Mode; IN 30mA/channel; AC Coupled (100mV/div) V OUT (100mV/div (20mA/div) Time (500ns/div) 8 AAT2833/34 240mA Total Display Solution for Portable Devices Operating Characteristics (V = 2.7V; 2X Mode; ...
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... AGND AS 2 Cwire Serial Interface Each current channel input on the AAT2833/34 is controlled by AnalogicTech's AS interface. The AS of rising edges on the EN/SET pin to address and load the LED configuration registers. latches data or addresses after the EN/SET pin has been held logic high for longer than T Addresses and data are differentiated by the num- ber of EN/SET rising edges ...
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When EN/SET is held low longer than T (500µs), the AAT2833/34 enters shutdown OFF mode operation and draws less than 1µA from the input supply voltage. Data and address registers are cleared (reset shutdown ...
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Data Code Figure 1: Addresses 0-2 Backlight Current Level. Low Backlight Current (Address 3) In addition to ...
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Data BL2 1 Off 2 Off 3 Off 4 Off 5 Off 6 Off 7 Off 8 Off Table 6: Address 3 with Independent ...
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RGB Control The Red, Green, and Blue LED PWM timing, along with the overall period, is controlled by five registers. The current level for the RGB LEDs is controlled by another register (Address 12) which makes it possi- ble to ...
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Data RGB Current BSET 100 5 133 6 167 7 200 Table 7: Address 12, RGB Current Level Register (I ). SINK RGB LED Current Calculation The average current in ...
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Applications Information Adjusting the Maximum Backlight LED Current Level The value of R determines the maximum LED BSET current level for the backlight section. In the typical application, selecting R = 280kΩ results in a BSET maximum 30mA/channel LED current ...
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LED Selection The AAT2833/34 is designed to drive high-intensity white LEDs particularly suitable for LEDs with an operating forward voltage in the range of 4.2V to 1.5V. The AAT2833/34 can also drive other loads that have similar characteristics ...
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Pin #1 Figure 5: AAT2833/34 Package PCB Layout. Evaluation Board Layout Figure 6: AAT2833/34 Evaluation Board Component Side Layout. 2833.2007.09.1.0 AAT2833/34 240mA Total Display Solution for Portable Devices Figure 7: AAT2833/34 Evaluation Board Solder Side Layout. 17 ...
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Evaluation Board Schematic DC+ VIN J1 Optional 100μF C7 lab supply bypass Figure 8: AAT2833/34 Evaluation Board Schematic. VIN SW1 SW2 SW3 SW4 SW5 Figure 9: AAT2833/34 Microcontroller Section Schematic. 18 240mA ...
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... Sample stock is generally held on part numbers listed in BOLD. 3. Contact factory for AAT2834 availability. 2833.2007.09.1.0 240mA Total Display Solution RGB Package Y Y TQFN44- TQFN44-24 Marking 1 SVXYY AAT2833/34 for Portable Devices Function Backlight Plus 4096-Combination RGB Backlight Plus 64-Combination RGB Part Number (Tape and Reel) 2 AAT2833IBK-T1 AAT2834IBK- ...
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... 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 the right to make changes to their products or specifications or to discontinue any product or service with- out notice. Except as provided in AnalogicTech’ ...