TSL1018 18 + 1 channel buffer for TFT-LCD panels Features ■ Wide supply voltage: 5.5V to 16.8V ■ Low operating current: 8mA typical at 25°C ■ Bandwidth at -3dB: 3.5MHz ■ High output current COM amplifier: ±150mA ■ Industrial temperature range: -40°C to +95°C ■ Small package: TQFP48 ePad 7 x 7mm TQFP48 ePad Pin connections (top view) Application COMi VSS VDD VDD TFT liquid crystal display (LCD) VSS COMo ■ 48 47 46 45 44 43 42 41 40 39 38 37 Description The TSL1018 is composed of 18 + 1 channel buffers which are used to buffer the reference voltage for gamma correction in thin film transistor (TFT) liquid crystal displays (LCD). 2 One "COM" amplifier is able to deliver high output current value, up to ±150mA. Amplifiers A and B feature positive single supply inputs for common mode voltage, thus can be used for highest gamma voltages. The amplifiers C to R inclusive, and the COM amplifier, feature negative single supply inputs and are dedicated to the lowest gamma voltages. 6 P 35 O 34 N M 4 33 L K 5 VSS 36 Q 3 32 J 31 I 7 30 VSS H VDD 8 29 VDD G F 9 28 E 10 27 D C 11 26 B 12 21 22 23 24 VSS 14 15 16 17 18 19 20 VDD Rev 2 25 A 13 The TSL1018 is fully characterized and guaranteed over a wide industrial temperature range (-40 to +95°C). July 2008 R 1 1/15 www.st.com 15 Absolute maximum ratings and operating conditions 1 TSL1018 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter Value Unit 18 V VSS -0.5V to VDD +0.5V V mA VDD Supply voltage VIN Input voltage IOUT Output current (A to R buffers) Output current (COM buffer) 40 150 Thermal resistance junction to ambient for TQFP48 ePad not thermally connected to PCB ePad thermally connected to PCB 85 36 °C/W Power dissipation(1) for TQFP48 ePad ePad not thermally connected to PCB ePad thermally connected to PCB 1470 3470 mW TLEAD Lead temperature (soldering 10 seconds) 260 °C TSTG Storage temperature -65 to +150 °C TJ Junction temperature 150 °C RTHJA PD Human body model ESD (HBM)(2) Machine model (MM) (3) Charged device model (CDM) (4) 2000 200 V 1500 1. PD is calculated with Tamb = 25°C, TJ = 150°C and RTHJA . 2. Human body model: a 100pF capacitor is charged to the specified voltage, then discharged through a 1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 3. Machine model: a 200pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5Ω). This is done for all couples of connected pin combinations while the other pins are floating. 4. Charged device model: all pins and package are charged together to the specified voltage and then discharged directly to the ground through only one pin. Table 2. Operating conditions Symbol Value Unit VCC Supply voltage (VDD - VSS) 5.5 to 16.8 V Tamb Ambient temperature -40 to +95 °C VIN 2/15 Parameter Input voltages for buffers A & B VSS + 1.5V to VDD Input voltages for buffers C to R & COM VSS to VDD - 1.5V V TSL1018 2 Typical application schematics Typical application schematics Figure 1. Typical application schematic for the TSL1018 Vcc 8 16 29 41 43 + Cs VDD R1 10uF 20 A 19 Gamma 17 R2 21 Gnd B 17 Gamma 16 R3 22 C 15 Gamma 15 R4 23 D 14 Gamma 14 R5 24 E 13 Gamma 13 R6 25 F 12 Gamma 12 R7 26 G 11 Gamma 11 R8 27 H 10 To colunm driver Gamma 10 R9 28 9 I Gamma 9 R10 31 6 J Gamma 8 R11 32 K 5 Gamma 7 R12 33 4 L Gamma 6 R13 34 M 3 Gamma 5 R14 35 N 2 Gamma 4 R15 36 O 1 Gamma 3 R16 37 P 48 Gamma 2 R17 38 Q 47 Gamma 1 R18 39 R 46 Gamma 0 R19 Gnd Com Ref. Voltage 40 COM 45 VCOM VSS 7 18 30 42 44 TSL1018 Gnd Note that: ● Amplifiers A & B have their input voltages in the range VSS+1.5V to VDD. This is why they must be used for high level gamma correction voltages. ● Amplifiers C to R have their input voltages in the rangeVSS to VDD-1.5V. This is why they must be used for medium-to-low level gamma correction voltages. ● Amplifier COM has its input voltage range from VSS toVDD-1.5V. 3/15 Electrical characteristics TSL1018 3 Electrical characteristics Table 3. Electrical characteristics for Tamb = 25°C , VDD = +5V, VSS = -5V, RL = 10kΩ, CL = 10pF (unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit 12 mV VIO Input offset voltage VICM = 0V ΔVIO Input offset voltage drift -40°C < Tamb < +85°C IIB Input bias current VICM = 0V, buffers A & B VICM = 0V, buffers C to R & COM RIN Input impedance 1 GΩ CIN Input capacitance 1.35 pF VOL Output voltage low IOUT = -5mA Buffers C to P Buffers Q, R & COM VOH Output voltage high IOUT = 5mA for buffers A & B IOUT Output current PSRR 4.82 -4.80 -4.85 4.87 COM buffer ±150 nA V V mA ICC Supply current No load SR Slew rate (rising & falling edge) -4V < VOUT < +4V 20% to 80% Settling time Settling to 0.1%, VOUT=2V step BW Bandwidth at -3dB Gm Cs 4/15 -4.85 -4.92 ±40 VCC= 6.5 to 15.5V Note: 140 70 (A to R buffers) Power supply rejection ratio ts μV/°C 5 80 100 8 dB 11 mA 1.1 V/μs 5 μs RL=10kΩ, CL=10pF 3.5 MHz Phase margin RL=10kΩ, CL=10pF 60 degrees Channel separation f=1MHz 75 dB Limits are 100% production tested at 25°C. Behavior at the temperature range limits is guaranteed through correlation and by design. TSL1018 Figure 2. Electrical characteristics Supply current vs. supply voltage for various temperatures Figure 3. 1.0 Output offset voltage (mV) Current consumption (mA) 12 Output offset voltage (eq. VIO) vs. temperature T AM B = -40°C 10 T AM B = + 25°C 8 V C C = 5.5V , 10V , 16.8V 0.5 0.0 -0.5 T AM B =+ 95°C 6 4 6 8 10 12 14 16 -1.0 -40 18 -20 P ow er supply voltage (V ) Figure 4. Input current (IIB) vs. temperature Figure 5. 100 80 60 40 20 60 40 20 -20 0 20 40 60 0 -40 80 -20 Figure 7. 60 100 50 V CC =10V V CC =16.8V -50 Output current (mA) Output current (mA) Output current capability vs. temperature V C C =5.5V 0 20 40 -150 Output current capability vs. temperature 40 20 0 V C C = 10V , 16.8V V C C =5.5V -20 -60 0 80 -40 Buffers A & B -20 60 Am bient Tem perature (°C ) 150 -200 -40 80 80 80 -100 60 Buffers C to C O M V C C = 5.5V, 10V , 16.8V 100 200 0 40 Input current (IIB) vs. temperature Am bient Tem perature (°C ) Figure 6. 20 120 Buffers A & B V C C =5.5V, 10V, 16.8V Input bias current (nA) Input bias current (nA) 120 0 -40 0 Am bient Tem perature (°C ) 20 40 60 Am bient Tem perature (°C) 80 -80 -40 B uffers C to R -20 0 20 40 60 80 A m bient Tem perature (°C ) 5/15 Electrical characteristics Figure 8. TSL1018 Output current capability vs. temperature Figure 9. High level voltage drop vs. temperature 200 High level voltage drop (mV) Output current (mA) 200 100 0 V CC =10V, 16.8V V CC =5.5V -100 Buffer COM V C C =16.8V 150 100 V CC =10V V C C = 5.5V 50 Buffers A & B Iout= 5m A -200 -40 -20 0 20 40 60 0 -40 80 -20 Ambient Temperature (°C) Figure 10. Low level voltage drop vs. temperature Low level voltage drop (mV) Low level voltage drop (mV) V CC = 5.5V 80 0 -40 V CC = 10V, 16.8V Buffers Q & R Iout = 5m A 80 -20 0 V CC = 5.5V 80 60 V CC = 10V, 16.8V 40 Buffer CO M Iout = 5m A 20 20 40 60 80 0 -40 100 -20 0 20 40 60 80 100 Tem perature (°C) Figure 12. Voltage output high (VOH) vs. output current - buffers A & B Figure 13. Voltage output high (VOH) vs. output current - buffers A & B 5.5 10.0 High level output voltage (V) High level output voltage (V) 60 100 Tem perature (°C) T AM B =-40°C 5.0 4.5 T AM B =+25°C 4.0 9.8 T AM B =-40°C T AM B =+25°C 9.6 9.4 T AM B =+95°C 9.2 B uffers A & B V CC = 5.5V Buffers A & B V CC = 10V T AM B =+95°C 3.5 9.0 0 5 10 15 20 O utput current (m A) 6/15 40 120 120 40 20 Figure 11. Low level voltage drop vs. temperature 200 160 0 Am bient Tem perature (°C ) 25 30 0 5 10 15 20 O utput current (m A) 25 30 TSL1018 Electrical characteristics Figure 14. Voltage output high (VOH) vs. output current - buffers A & B Figure 15. Voltage output low (VOL) vs. output current - buffers C to P 1.2 Low level output voltage (V) High level output voltage (V) 16.8 T AM B =-40°C 16.6 T AMB =+25°C 16.4 T AMB =+95°C 16.2 16.0 5 10 0.8 T AM B =+25°C 0.6 0.4 T AM B =-40°C 0.2 Buffers A & B V CC = 16.8V 0 Buffers C to P V CC = 5.5V T A M B =+95°C 1.0 15 20 25 0.0 -30 30 -25 Output current (m A) -20 -15 -10 -5 0 O utput current (m A) Figure 16. Voltage output low (VOL) vs. output Figure 17. Voltage output low (VOL) vs. output current - buffers C to P current - buffers C to P 1.2 Buffers C to P V C C = 10V T A M B =+95°C 1.0 0.8 Low level output voltage (V) Low level output voltage (V) 1.2 T A M B = +25°C 0.6 0.4 T A M B =-40°C 0.2 0.0 -30 Buffers C to P V CC = 16.8V 1.0 T A M B =+95°C 0.8 T A M B =+25°C 0.6 0.4 T A M B =-40°C 0.2 -25 -20 -15 -10 -5 0.0 -30 0 -25 O utput current (m A) -20 -15 -10 -5 0 O utput current (m A) Figure 18. Voltage output low (VOL) vs. output Figure 19. Voltage output low (VOL) vs. output current - buffer Q, R & COM current - buffer Q, R & COM 2.0 B uffers Q , R & C O M V CC = 5.5V 1.2 Low level output voltage (V) Low level output voltage (V) 1.6 T AM B =+95°C T AM B =+25°C 0.8 0.4 T AM B =+95°C Buffers Q , R & C O M V CC = 10V 1.5 T AM B =+25°C 1.0 0.5 T AM B =-40°C T AM B =-40°C 0.0 -50 -40 -30 -20 O utput current (m A) -10 0 0.0 -100 -80 -60 -40 -20 0 O utput current (m A) 7/15 Electrical characteristics TSL1018 Figure 20. Voltage output low (VOL) vs. output Figure 21. Positive slew rate vs. temperature current - buffer Q, R & COM 2.0 Buffers Q , R & CO M V CC = 16.8V Positive Slew Rate (V/µs) Low level output voltage (V) 2.0 T AM B =+95°C 1.5 T AM B =+25°C 1.0 0.5 1.5 V C C = 16.8 V V C C = 10V 1.0 V C C = 5.5V 0.5 T AM B =-40°C B u ffers A & B 0.0 -100 -80 -60 -40 -20 0.0 -4 0 0 -20 Figure 22. Positive slew rate vs. temperature 20 40 80 Positive Slew Rate (V/µs) 2.0 V C C = 16.8V 1.5 1.0 V C C = 10V V C C = 5.5 V 0.5 V C C = 10V 1.5 V C C = 16.8V 1.0 V C C = 5.5 V 0.5 B uffer C O M B uffers C to R 0.0 -40 60 Figure 23. Positive slew rate vs. temperature 2.0 Positive Slew rate (V/µs) 0 A m bient Tem peratu re (°C ) Output current (m A) -2 0 0 20 40 60 0.0 -40 80 -20 A m bient Tem p erature (°C ) 0 20 40 60 80 A m bien t tem perature (°C ) Figure 24. Negative slew rate vs. temperature Figure 25. Negative slew rate vs. temperature 1.5 2.0 Negative Slew Rate (V/µs) Negative Slew Rate (V/µs) 2.0 V C C =16.8V V C C =10V 1.0 V C C = 5.5V 0.5 1.5 1.0 V C C =5.5V 0.5 B uffers A & B 0.0 -40 -20 0 20 40 60 A m b ien t T em perature (°C ) 8/15 V C C =16.8V V C C =10V 80 B uffers C to R 0.0 -40 -20 0 20 40 60 A m bient Tem peratu re (°C ) 80 TSL1018 Electrical characteristics Figure 26. Negative slew rate vs. temperature Figure 27. Large signal response buffers A & B 4 3 1.5 V C C =16.8V V C C =10V 2 Vout (V) Negative Slew Rate (V/µs) 2.0 1.0 Buffers A & B V CC =10V T AMB =+25°C Z L=10k Ω //16pF 1 0 -1 V C C =5.5V 0.5 -2 -3 B uffer C O M 0.0 -40 -4 -20 0 20 40 60 -1 80 0 1 Figure 28. Large signal response buffers A & B 4 5 6 5 6 5 6 4 3 3 Buffers A & B V CC =10V T AMB =+25°C Z L=10k Ω //16pF 1 2 Vout (V) 2 Vout (V) 3 Figure 29. Large signal response buffers C to R 4 0 0 -1 -2 -2 -3 -3 -1 0 1 2 3 4 5 Buffers C to R V CC =10V T AMB =+25°C Z L=10k Ω //16pF 1 -1 -4 -4 6 -1 0 1 Time (µs) 3 4 Figure 31. Large signal response buffer COM 4 4 3 3 Buffers C to R V CC=10V T AMB=+25°C ZL=10k Ω //16pF 1 2 Vout (V) 2 0 1 0 -1 -1 -2 -2 -3 -3 -4 -1 2 Time (µs) Figure 30. Large signal response buffers C to R Vout (V) 2 Time (µs) A m bient Tem perature (°C ) 0 1 2 3 Time (µs) 4 5 6 -4 -1 Buffer COM VCC=10V T AMB=+25°C ZL=10kΩ //16pF 0 1 2 3 4 Time (µs) 9/15 Electrical characteristics TSL1018 Figure 32. Large signal response buffer COM Figure 33. Small signal response buffers A & B 0.15 4 3 1 Buffers A & B V CC =10V T AMB=+25°C Z L=10k Ω //16pF V e=100mV pp 0.05 Vout (V) Vout (V) 0.10 Buffer COM V CC =10V T AMB =+25°C Z L=10k Ω //16pF 2 0 -1 0.00 -0.05 -2 -0.10 -3 -0.15 -4 -1 0 1 2 3 4 5 6 0 7 1 Figure 34. Small signal response buffers C to R 3 Figure 35. Small signal response buffer COM 0.15 0.15 0.10 0.10 Buffers C to R V CC=10V T AMB=+25°C Z L=10k Ω //16pF V e=100mV pp 0.00 0.00 -0.05 -0.05 -0.10 -0.10 -0.15 0 1 Buffer COM V CC=10V T AMB=+25°C Z L=10k Ω //16pF V e=100mV pp 0.05 Vout (V) 0.05 Vout (V) 2 Time (µs) Time (µs) 2 -0.15 3 0 1 Time (µs) 2 3 Time (µs) Figure 36. Output voltage response to current Figure 37. Output voltage response to current transient - buffers A & B transient - buffers A & B 2.0 0.5 Buffers A & B V CC =10V T AMB=+25°C Δ I=0mA to 30mA 1.0 0.0 Vout (V) Vout (V) 1.5 0.5 -0.5 Buffers A & B V CC=10V T AMB=+25°C Δ I=30mA to 0mA -1.0 0.0 -0.5 -1 0 1 Time (µs) 10/15 2 3 -1.5 -1 0 1 Time (µs) 2 3 TSL1018 Figure 38. Electrical characteristics Output voltage response to current Figure 39. Output voltage response to current transient - buffers C to R transient - buffers C to R 0.5 2.0 Buffers C to R V CC=10V T AMB=+25°C Δ I=0mA to 30mA 1.0 0.0 Vout (V) Vout (V) 1.5 0.5 -0.5 Buffers C to R V CC =10V T AMB=+25°C Δ I=30mA to 0mA -1.0 0.0 -1.5 -1 -0.5 -1 0 1 2 3 0 1 2 3 Time (µs) Time (µs) Figure 40. Output voltage response to current Figure 41. Output voltage response to current transient - buffer COM transient - buffer COM 5 1 Buffer COM V CC =10V T AMB =+25°C Δ I=0mA to 100mA 4 -1 Vout (V) Vout (V) 3 0 2 -2 1 -3 0 -4 -1 Buffer COM V CC =10V T AMB =+25°C Δ I=100mA to 0m A -5 0 2 4 6 8 0 2 Time (µs) Output voltage response to current transient - buffer COM 1 6 0 5 -1 4 -2 -3 Buffer COM V CC =10V T AMB=+25°C Δ I=100mA to -100mA -4 -5 0 5 10 Time (µs) 8 15 20 Buffer COM V CC =10V T AMB =+25°C Δ I=-100mA to +100mA 3 2 1 0 -6 -5 6 Figure 43. Output voltage response to current transient - buffer COM Vout (V) Vout (V) Figure 42. 4 Time (µs) 25 -1 -5 0 5 10 15 20 25 30 Time (µs) 11/15 Package information 4 TSL1018 Package information In order to meet environmental requirements, STMicroelectronics offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Table 4. TQFP48 ePad package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.20 A1 0.05 A2 0.95 b 0.17 c 0.09 D 8.80 D1 6.80 D2 2.00 D3 Max. 0.047 0.15 0.002 0.006 1.00 1.05 0.037 0.039 0.041 0.22 0.27 0.007 0.009 0.011 0.20 0.004 9.00 9.20 0.346 0.354 0.362 7.00 7.20 0.268 0.276 0.283 0.008 0.079 5.50 0.217 E 8.80 9.00 9.20 0.346 0.354 0.362 E1 6.80 7.00 7.20 0.268 0.276 0.283 E2 2.00 0.079 E3 5.50 0.217 e 0.50 0.020 L 0.45 L1 k ccc 12/15 Inches 0.60 0.75 0.018 1.00 0° 3.5° 0.024 0.030 0.039 7° 0.08 0° 3.5° 7° 0.003 TSL1018 Package information Figure 44. TQFP48 ePad package drawing 13/15 Ordering information 5 TSL1018 Ordering information Table 5. Order codes Part number Temperature range Package -40°C to +95°C TQFP48 ePad Packing TSL1018IF Tray TSL1018IFT 6 14/15 SL1018I Tape & reel Revision history Date Revision 22-Mar-2007 1 Initial release. 2 Modified ICC typical and maximum values in Table 3. Updated all curves (Figure 2 to Figure 43). Added ESD charged device model value in Table 1. 15-Jul-2008 Marking Changes TSL1018 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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