AAT2847IML-EE-T1 Advanced Analog Technology, Inc., AAT2847IML-EE-T1 Datasheet
AAT2847IML-EE-T1
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AAT2847IML-EE-T1 Summary of contents
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ChargePump TM General Description The AAT2847 is a highly integrated power solution for single cell Li-Ion/Polymer based liquid crystal display (LCD) display applications. It includes a four channel light emitting diode (LED) backlight driver and two inte- grated 200mA low ...
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ChargePump ChargePump TM TM Pin Descriptions Symbol Pin # AAT2847-EE AAT2847-QG/ LDOB LDOB PGND PGND 7 FBA NC 8 LDOA LDOA 9 C2- C2- 10 C2+ C2+ 11 ...
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ChargePump ChargePump TM TM Absolute Maximum Ratings T = 25°C, unless otherwise noted. Pin descriptions below apply to AAT2847-EE (AAT2847-QG/QI) A Symbol Description V [IN, OUT, D1, D2, D3, D4] to GND N V [C1+, C1-, C2+, C2-] to GND ...
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ChargePump ChargePump TM TM Electrical Characteristics V = 3.6V 2.2µ LDOA LDOB are 25°C. A Symbol Description Power Supply V Input Voltage Range IN I Total Shutdown Current ...
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ChargePump ChargePump TM TM Electrical Characteristics V = 3.6V 2.2µ LDOA LDOB are 25°C. A Symbol Description LDOs: AAT2847- Operating Current Feedback ...
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ChargePump ChargePump TM TM Typical Characteristics Backlight Efficiency vs. Input Voltage 100 90 80 20mA/Channel 70 60 1mA/Channel 50 14.5mA/Channel 40 30 2.7 3.1 3.5 3.9 4.3 Input Voltage (V) EN/SET Latch Timeout vs. Input Voltage 350 -40°C 300 250 ...
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ChargePump ChargePump TM TM Typical Characteristics Shutdown Current vs. Input Voltage ( 0V) EN/SET ENA/ENB 20 -40° 25° 2.7 3.1 3.5 3.9 4.3 4.7 Input Voltage (V) Backlight Operating Characteristic (V = ...
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ChargePump ChargePump TM TM Typical Characteristics Turn Mode Backlight (20mA/Channel; Address 0, Data EN/SET (2V/div) V OUT (2V/div (500mV/div (100mA/div) Time (500ns/div) Turn Mode Backlight (20mA/Channel; Address ...
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ChargePump ChargePump TM TM Typical Characteristics LDOA/LDOB Quiescent Current vs. Input Voltage (V = 1.2V) OUT 120 85°C 25°C 100 -40° 2.7 3.1 3.5 3.9 4.3 Input Voltage (V) LDOB Load Transient Response (V = ...
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ChargePump ChargePump TM TM Typical Characteristics LDOA/LDOB Turn 3.6V 2.8V; DC Coupled) IN LDO(A/B) V EN(A/B) (2V/div) V LDO(A/B) (1V/div) Time (40µs/div) LDOA/LDOB Turn 3.6V 1.5V; DC Coupled) IN LDO(A/B) ...
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ChargePump ChargePump TM TM Functional Block Diagram (AAT 2847-QG/-QI) IN EN/SET IN ENA ENB Functional Description The AAT2847 is an integrated solution for LCD display applications with a built-in four channel white LED driver (charge pump) and dual 200mA LDO ...
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ChargePump TM 30.0 25.0 20.0 15.0 10.0 Address 0 5.0 0 Code Figure 1: LED Current Control Profile. AS Cwire Serial Interface 2 ...
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ChargePump TM EN/SET 1 Address DATA 3 DATA 0 Figure 2: AS Data Current Scale 1 20mA Scale 2 30mA Scale 3 15mA Scale 4 Low Current Mode Table 3: Current Scale Settings—Address 3. Low Current Operation (Address 4) All ...
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ChargePump TM Auto Disable Feature The charge pump in the AAT2847 is equipped with an auto-disable feature for each LED channel. After the IC is enabled and successively starts-up, a test current of 100µA (typical) is forced through each LED ...
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ChargePump (A/B) LDO(A/ 1.2V (A/B) The result 60kΩ. Since 60kΩ is not a standard 1% resistor value, 60.4kΩ is selected. From this exam- ple calculation, for V = 1.8V, use R1 = ...
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ChargePump TM Before choosing a particular capacitor, verify the capaci- tor’s performance with the characteristics illustrated in the component’s data sheet. Performance verification will help avoid undesirable component related perfor- mance deficiencies. PCB Layout To achieve adequate electrical and thermal ...
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ChargePump ChargePump TM TM Evaluation Board Layout Figure 5: AAT2847 Evaluation Board Component Side Layout. Evaluation Board Schematic DC LDOB C6 R10 R11 2847.2008.05.1.2 2847.2008.05.1.2 Four-Channel Backlight Driver with Dual LDOs Four-Channel Backlight Driver with Dual ...
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ChargePump ChargePump TM TM DATA LIGHT Four-Channel Backlight Driver with Dual LDOs Four-Channel Backlight Driver with Dual LDOs R6 DC+ DC VDD VSS 2 GP5 GP0 3 GP4 GP1 4 GP3 GP2 ...
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... Four-Channel Backlight Driver with Dual LDOs Marking LDOB 1 Programmable YLXXY 1.5V 1.8V ZDXYY PRODUCT DATASHEET PRODUCT DATASHEET AAT2847 AAT2847 Part Number (Tape and Reel) 2 AAT2847IML-EE-T1 AAT2847IML-QG-T1 AAT2847IML-QI- ...
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ChargePump ChargePump TM TM Package Information 1 3.00 ± 0.05 Top View 0.025 ± 0.025 Side View All dimensions in millimeters. 1. The leadless package family, which includes QFN, TQFN, DFN, TDFN, and STDFN, has exposed copper (unplated) at the ...