Advanced Analog Technology, Inc. AAT7203 Details are subject to change without notice 4+1-CHANNEL BUFFER FOR TFT LCD FEATURES z GENERAL DESCRIPTION 4+1-Channel: 4 Channels with an Output Current of ± 30mA (MAX); 1 Vcom with an Output Current of ± 100mA (MAX) z Unity Gain Buffer Capable of Driving Large Capacitive Loads z Input Range Matched to LCD Reference Requirements z VDD Specified for 6.5V to 16V z TSSOP14 Package The AAT7203 is a 4+1-channel buffer designed for thin film transistor liquid crystal display (TFT LCD). This device consists of a Vcom buffer circuit, two rail-to-rail buffer amplifier circuits, and 2 buffer amplifier circuits. Each buffer is capable of driving heavy capacitive loads and providing fast load current ( Vcom : 100mA, and the others: 30mA). AAT7203 comes in a compact TSSOP14 package, which makes it an ideal component for space-sensitive designs of LCD monitors and LCD TVs. PIN CONFIGURATION TOP VIEW TSSOP14 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 1 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NAME VDD I/O I Power Supply o1 o2 o3 o4 O com O O O O O I I I I I I I I Buffer Channel 1 Output Buffer Channel 2 Output Buffer Channel 3 Output Buffer Channel 4 Output Com Buffer Output Ground Ground Com Buffer Input Buffer Channel 4 Input Buffer Channel 3 Input Buffer Channel 2 Input Buffer Channel 1 Input Power Supply GND GND I com i4 i3 i2 i1 VDD DESCRIPTION ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS Supply Voltage SYMBOL VDD VALUE +18 UNIT V Input Voltage VI −0.5 to VDD + 0.5 V Output Voltage VO −0.5 to VDD + 0.5 V Output Loading Current for Gamma, Rail-to-Rail Buffer Output Loading Current for Com Buffer Maximum Junction Temperature ± 30 IL mA ± 100 +125 mA o C Operating Temperature Storage Temperature Lead Temperature (Soldering for 10 Seconds) TJ TC − 20 to +85 o Tstorage − 45 to +125 o --- 260 o C C C Note: Values 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. – Page 2 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS OTHERWISE SPECIFIED) POWER SUPPLY PERFORMANCE PARAMETER TEST CONDITIONS Power Supply Rejection Ratio PSRR VDD varies from 6.5V to 16.0V IS Supply Current MN TYP MAX UNITS - 80 - dB - 6.3 - mA MIN TYP MAX UNITS INPUT CHARACTERISTICS PARAMETER Input Offset Voltage Input Bias Current TEST CONDITIONS VOS VI = VDD /2, VO = VDD /2 - 2 12 mV IB VI = VDD /2, VO = VDD /2 - 2 50 nA Note 2: Slew rate is measured on rising and falling edges. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 3 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS OTHERWISE SPECIFIED) OUTPUT CHARACTERISTICS PARAMETER TEST CONDITIONS VOL Output Swing Low VOH Output Swing High I L =5mA (Buffer 1, 4) VI =0V I L =10mA (Buffer 2, 3) VI =1V I L = − 5 mA (Buffer 1, 4) VI =10V I L = − 10 mA (Buffer 2, 3) VI =9V MIN TYP MAX UNITS - 0.08 0.15 V - 1.02 1.05 V 9.85 9.92 - V 8.95 8.98 - V - 5.02 5.04 V VOL I L =10mA, VI =5V VOH I L = − 10 mA, VI =5V 4.96 4.98 - V Output Swing (COM) VOL VOH Short Circuit Current I SC I L =50mA, VI =5V IL= − 50 mA, VI =5V (Buffer 2,3 ) (Com Buffer, Buffer 1, 4) 4.95 - 5.03 4.97 ± 70 ± 180 5.05 - V V mA mA Test Conditions VI =2V to 8V, 20% to 80% Min Typ Max Units - 1 - V/ µs - 5 - µs Output Swing (Buffer 2,3) AC CHARACTERISTICS Parameter Slew Rate (Note 2) SR Settling Time ts VI =4.5V to 5.5V VI =5.5V to 4.5V 0.1% 0.1% Note 2: Slew rate is measured on rising and falling edges. – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 4 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 BLOCK DIAGRAM – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 5 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 APPLICATION CIRCUIT 10Ω 1µF 10Ω 1µF 10Ω 1µF 10Ω 1µF 10Ω 1µF – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 6 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 PACKAGE DIMENSION TSSOP14 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 7 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 PACKAGE DIMENSION (CONT.) TSSOP14 SYMBOL DIMENSIONS IN MILLIMETERS DIMENSIONS IN INCHES MIN TYP MAX MIN TYP MAX A --- --- 1.20 --- --- 0.047 A1 0.05 --- 0.15 0.002 --- 0.006 A2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 --- 0.30 0.007 --- 0.012 C 0.09 --- 0.20 0.0035 --- 0.0080 D 4.90 5.00 5.10 0.193 0.197 0.201 E --- 6.40 --- 0.193 0.252 0.201 E1 4.30 4.40 4.50 0.170 0.173 0.177 e --- 0.65 --- --- 0.026 --- L 0.45 0.60 0.75 0.0177 0.0240 0.0295 y --- --- 0.076 --- --- 0.003 θ 0o --- 8o 0o --- 8o Note: 1. CONTROLLING DIMENSION: MILLIMETERS 2. LEAD FRAME MATERIAL: OLIN C7025/EFTEC 64T 3. DIMENSION “D” DOES NOT INCLUDE MOLD FLASH, TIE BAR BURRS AND GATE BURRS. MOLD FLASH, TIE BAR BURRS AND GATE BURRS SHALL NOT EXCEED 0.006” [0.15 MILLIMETERS] PER END. DIMENSION “E1” DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010” [0.25 MILLIMETERS] PER SIDE. 4. DIMENSION “b” DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.003” [0.08 MILLIMETERS] TOTAL IN EXCESS OF THE “b” DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSION AND AN ADJACENT LEAD TO BE 0.0028” [0.07 MILLIMETERS] 5. TOLERANCE: ± 0.010” [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED. 6. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC. 7. REFERENCE DOCUMENT: JEDEC SPEC MO-153 – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 8 of 9 V 0.1 Advanced Analog Technology, Inc. AAT7203 ORDERING INFORMATION – 台灣類比科技股份有限公司 – – Advanced Analog Technology, Inc. – Page 9 of 9 V 0.1