AN1702FHK PANASONIC
Document overview
- Manufacturer or author: Provided By digicamel.com
- PDF pages: 6
Technical content
Gradation Voltage Generating IC for Color TFT-LCD 1Publication date: December 2001 SDF00004BEB AN1702FHK Gray-scale voltage generating IC for liquid crystal display I Overview The AN1702FHK has been designed for LCD applications,and features built-in functions such as a gray-scale voltage generatior that supports 256 grada- tions, a reference voltage of 1.23 V, 16 output buffer amp circuits and a COM amplifier circuit. I Features
- Built-in 1.23 V (typical) high-precision reference voltage power source
- Wide buffer amp. dynamic range output: V CC − 0.2 V (top stage) to GND + 0.15 V (bottom stage)
- Large ±100 mA (max.) COM amp. driving current I Applications
- Gray-scale power sources for LCDs I Block Diagram Unit: mm TQFP048-P-0707B (Lead-free package) 0.15 ±0.05 0.50±0.10 0.20±0.05 9.00±0.20 7.00±0.10 7.00±0.10 9.00±0.20 0.10+0.10 -0.05 0° to 8° 1.20 max. (0.75) (1.00) (0.75) (1.00) Seating plane 1348 1 12 0.50 M0.10 0.10 36 34 35 33 32 29 31 30 28 27 26 25 121110987654321 VB3 VB4 VB5 VB6 VB7 N.C. GND2 V A7 V A6 V A5 V A4 V A3 VA 2 VA 1 VA 0 N.C. V REF VR N.C. V CC1 N.C. VR0 VR1 VR2 VL3 VL4 VL5 VL6 VL7 N.C. V CC2 VR7 VR6 VR5 VR4 VR3 VB2 VB1 VB0 GND1 N.C. COM1 COM0 COMS VL0 N.C. VL1 VL2 VREF REF L3L1 COM
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Parameter Symbol Rating Unit Supply voltage V CC 15.8 V Supply current I CC mA Power dissipation *2 PD 200 mW Operating ambient temperature *1 Topr 0 to +75 °C Strage temperature *1 Tstg −55 to +125 °C REF amplifier output source current I OSOURCE −5m A R0 amplifier output source current I O−R0 −15 mA R0 amplifier output sink current IO+R0 0.05 mA R0, R1, R2, R3, R4, R5, I O−R1-R5, L1-L5 −10 mA L5, L4, L3, L2, L1 amplifier output source current R6, R7, L7, L6 I O−R6-L6 −15 mA amplifier output source current R0, R1, R2, R3, R4, R5, I O+R1-R5, L1-L5 10 mA L5, L4, L3, L2, L1 amplifier output sink current R6, R7, L7, L6 I O+R6-L6 15 mA amplifier output sink current L0 amplifier output source current I O−L0 − 0.05 mA L0 amplifier output sink current I O+L0 15 mA COM amplifier output source current I O−COM −100 mA COM amplifier output sink current I O+COM 100 mA REF amplifier maximum load capacitanceCOREF 0.2 µF R0, R1, R2, R3, R4, R5, R6, R7, C OR/L 0.1 µF L7, L6, L5, L4, L3, L2, L1, L0 amplifier maximum load capacitance COM amplifier maximum load capacitanceCOCOM 10 µF I Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 7 to 15.5 V Load capacitance R0 to L0 CLOAD 0.01 µF COM 0.1 to 1 µF REF 0.1 µF I Absolute Maximum Ratings Note) 1. Do not apply external currents or voltages to any pins not specifically mentioned. For circuit currents, ' +' denotes current flowing into the IC, and ' −' denotes current flowing out of the IC. 2. *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2:Ta = 75°C. For the independent IC without a heat sink.
Parameter Symbol Conditions Min Typ Max Unit Circuit current I CC 10 mA Reference voltage V REF 1.19 1.23 1.27 V Input bias current I B 500 nA REF amplifier block Operating upper limit voltage V H IOUT = −2 mA, COUT ≥ 0.1 µFV CC V − 0.2 Operating lower limit voltage VL COUT ≥ 0.1 µF VREF V R0 amplifier block Output upper limit voltage 1 V HR01 IOUT = −10 mA V CC V − 0.2 Output upper limit voltage 2 V HR02 IOUT = −15 mA V CC V − 0.23 Output lower limit voltage V LR0 IOUT = 0.05 mA VCC V − 3.0 Offset voltage V OFFR0 10 mV R1 amplifier block Output upper limit voltage V HR1 IOUT = −10 mA V CC V − 0.3 Output lower limit voltage V LR1 IOUT = 10 mA VCC / 2 V Offset voltage V OFFR1 10 mV R2 amplifier block Output upper limit voltage V HR2 IOUT = −10 mA V CC V − 0.7 Output lower limit voltage V LR2 IOUT = 10 mA VCC / 2 V Offset voltage V OFFR2 10 mV R3, R4, R5, R6, R7, L3, L4, L5, L6, L7 amplifier block Output upper limit voltage 1 V HR3-R5 IOUT = −10 mA V CC V − 1.2 Output upper limit voltage 2 V HR6-R7 IOUT = −15 mA V CC V − 1.2 Output lower limit voltage 1 VLR3-R5 IOUT = 10 mA 2V Output lower limit voltage 2 VLR6-R7 IOUT = 15 mA 2V Output upper limit voltage 3 V HL3-L5 IOUT = −10 mA V CC V − 2.0 Output upper limit voltage 4 V HL6-L7 IOUT = −15 mA V CC V − 2.0 Output lower limit voltage 3 VLL3-L5 IOUT = 10 mA 1.2 V Output lower limit voltage 4 VLL6-L7 IOUT = 15 mA 1.2 V Offset voltage V OFF34567 10 mV I Electrical Characteristics at Ta = 25°C
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Parameter Symbol Conditions Min Typ Max Unit L2 amplifier block Output upper limit voltage V HL2 IOUT = −10 mA V CC / 2 V Output lower limit voltage V LL2 IOUT = 10 mA 0.7 V Offset voltage V OFFL2 10 mV L1 amplifier block Output upper limit voltage V HL1 IOUT = −10 mA V CC / 2 V Output lower limit voltage V LL1 IOUT = 10 mA 0.25 V Offset voltage V OFFL1 10 mV L0 amplifier block Output upper limit voltage V HL0 IOUT = − 0.05 mA 3 V Output lower limit voltage V LL0 IOUT = 15 mA 0.15 V Offset voltage V OFFL0 10 mV COM amplifier block Output upper limit voltage V HCOM IOUT = −100 mA V CC V −2.5 Output lower limit voltage V LCOM IOUT = 100 mA 2.5 V Offset voltage V OFFCOM VIN = 5 V 10 mV I Electrical Characteristics at Ta = 25°C (continued) I Technical Data
- PD Ta curves of TQFP048-P-0707B PD Ta Power dissipation PD (mW) 100 200 300 400399 500 600 700 800 772 Independent IC without a heat sink R th(j-a) = 250.6°C/W 0 25 50 75 100 12 5 Ambient temperature Ta (°C) 900 Mounted on standard board (glass epoxy: 50 mm × 50 mm × t0.8 mm) Rth(j-a) = 129.5°C/W
H, V, CLK I Application Circuit Example
- System configuration example
- Application circuit example VCC1 VCC2 VR0 VREF VA 0 VR1VA 1 VR7VA 7 VL7 VL6 VB7 VB6 VL0 COMS COM0 VB0 COM1 Current Current 1.23 V Output Output current ±100 mA (max.)To the reference voltage pin of LSI Total current should be lower than 5 mA. VREF output voltage = 1.23 V × R1 + R2 (but this never exceeds VCC)
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