Advanced Analog Technology, Inc. AAT7202 Preliminary AAT7202 12+1-Channel Buffer for TFT LCD Features General Description z The AAT7200 consists of 12+1 channel buffers target toward the needs of thin film transistor liquid crystal display (TFT LCD). This device consist of a Vcom buffer circuits, four rail to rail buffer amplifiers circuits and 8 buffer amplifiers circuits. Each buffer is capable of driving heavy capacitive loads and offers fast load current (Vcom : 100mA, the others : 30mA). . 12 Channels with Output Current: +30mA (MAX) z 1 Vcom with +100mA(MAX) z Unity Gain Buffer Capable of Driving Large Capacitive Loads z Input range Matched to LCD Reference Requirements z Specified for -20oC to +85 oC…6.5V to 16V z TQFP-48 Pins Output Current: Pin Configuration TOP VIEW – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Pin Description Pin # Name I/O Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 o11 o10 o9 o8 o7 N.C. VSS VDD N.C. o6 o5 o4 o3 N.C. VDD N.C. N.C. o2 VSS o1 VSS VDD i1 i2 i3 i4 i5 i6 N.C. VDD O O O O O Buffer Channel 11 Output Buffer Channel 10 Output Buffer Channel 9 Output Buffer Channel 8 Output Buffer Channel 7 Output I I Ground Power O O O O Buffer Channel Buffer Channel Buffer Channel Buffer Channel I Power O I O I I I I I I I I Buffer Channel Ground Buffer Channel Ground Power Buffer Channel Buffer Channel Buffer Channel Buffer Channel Buffer Channel Buffer Channel I Power 6 Output 5 Output 4 Output 3 Output 2 Output 1 Output 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input *To be continued – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Pin # 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Name VSS N.C. i7 i8 i9 i10 i11 i12 Icom N.C. N.C. N.C. VDD VSS VDD VSS Ocom o12 I/O I Description Ground I I I I I I I Buffer Channel 7 Input Buffer Channel 8 Input Buffer Channel 9 Input Buffer Channel 10 Input Buffer Channel 11 Input Buffer Channel 12 Input Com Buffer Input I I I I O O Power Ground Power Ground Com Buffer Output Buffer Channel 12 Output – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Absolute Maximum Ratings CHARACTERISTICS Supply voltage Input Voltage Maximum Junction Temperature Operating Temperature Storage Temperature Lead Temperature(Soldering,10 second) SYMBOL VDD VI TJ Tope Tstg --- VALUE +18 −0.5 to VDD + 0.5 +125 -40 to +85 -65 to 150 260 UNIT V V o C o C o C o C Note1: Value beyond absolute maximum ratings may cause permanent damage to the device. – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Electrical Characteristics (VDD=10V, TA=25oC unless otherwise specified.) Power Supply Performance Parameter Power Supply Ratio[2] Supply Current Test Conditions Rejection PSRR Min Typ VDD is moved from 6.5V to 15.5V IS Max Units 80 dB 9 mA Input Characteristics Parameter Test Conditions Input Offset Voltage VOS Input Bias Current IB Min Typ Max Units Vin=VDD/2 , Vout =VDD/2 2 12 mV Vin=VDD/2 , Vout =VDD/2 2 50 nA Typ Max Units Output Characteristics Parameter Output Swing Low Output Swing High Output Swing (buffer 3,4,…,9,10) Output Swing (COM) Short Circuit Current Test Conditions VOL VOH Min IL=5mA(Buffer 1,2,11,12) Vin=0v 0.08 0.15 V IL=10mA (Buffer 3,4,…,9,10) Vin=1v 1.02 1.05 V IL=-5mA (Buffer 1,2,11,12) Vin=10v 9.85 9.92 V IL=-10mA (Buffer 3,4,…,9,10) Vin=9v 8.95 8.98 V VOL IL=10mA Vin=5v VOH IL=-10mA VOL IL=50mA Vin=5v VOH IL=-50mA ISC Vin=5v Vin=5v 5.02 4.96 4.98 5.03 4.95 5.04 V V 5.05 V 4.97 V (Buffer 1~12 ) +70 mA (Com Buffer) +180 mA – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 AC Characteristics Parameter Test Conditions Slew Rate[2] SR Settling Time ts Min Typ Vin=2V to 8V, 20% to 80% Vin=4.5v to 5.5v 0.1% Vin=5.5v to 4.5v 0.1% Max Units 1 V/μs 5 μs Note2: Slew rage is measured on rising and falling edges. Function Block Diagram – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Application Circuit Inc Icomp Ocomp 10Ω Outc 10µF In1 I1 O1 10Ω Out1 1µF In2 I2 O2 10Ω Out2 1µF In3 I3 O3 10Ω Out3 1µF In11 I11 O11 10Ω Out11 1µF In12 I12 O12 10Ω Out12 1µF – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 Package Dimension (Dimensions shown in millimeters) – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1 Advanced Analog Technology, Inc. AAT7202 SYMBOL A A1 A2 b C E E1 D D1 e L L1 θ y DIMENSIONS IN MILLIMETERS MIN. NOM. MAX. ----1.20 0.05 --0.15 0.95 1.00 1.05 0.17 0.22 0.27 0.09 --0.20 --9.00 ----7.00 ----9.00 ----7.00 ----0.50 --0.45 0.60 0.75 --1.00 --o o 0 3.5 7o 0.0 --0.08 – 台灣類比科技股份有限公司 – Advanced Analog Technology, Inc. V 0.1