TSL1018 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

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 Application ■ TFT liquid crystal display (LCD)

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). 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. The TSL1018 is fully characterized and guaranteed over a wide industrial temperature range (-40 to +95°C). 7 x 7mm TQFP48 ePad Pin connections (top view) VSS VDD 13 14 15 16 17 18 19 20 21 22 23 24 48 44 43 42 41 40 39 38 3746 45 VSS VSS VDD VSS VDD VSS VDD COMi COMo R P Q O N M L K J I H G F E D C B A VDD VSS VDD 13 14 15 16 17 18 19 20 21 22 23 24 48 44 43 42 41 40 39 38 3746 45 VSS VSS VDD VSS VDD VSS VDD COMi COMo R P Q O N M L K J I H G F E D C B A VDD

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings

  1. P D 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

while the other pins are floating.

  1. Machine model: a 200pF capacitor is charged to the specified voltage, then discharged directly between

connected pin combinations while the other pins are floating.

  1. Charged device model: all pins and package are ch arged together to the specified voltage and then

discharged directly to the ground through only one pin. Table 2. Operating conditions

2 Typical application schematics

Figure 1. Typical application schematic for the TSL1018

  • 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. R10 R11 R12 R13 R14 Gnd Gnd Com Ref. Voltage Vcc + Cs 10uF Gnd Gamma 5 Gamma 6 Gamma 7 Gamma 8 Gamma 9 Gamma 10 Gamma 11 Gamma 12 Gamma 13 Gamma 14 Gamma 15 Gamma 16 Gamma 17 VCOM To colunm driver R15 R16 R17 R18 Gamma 0 Gamma 1 Gamma 2 Gamma 3 Gamma 4 R19 COM A B C D E F G H I J O P Q R VSS VDD K L M N 532 35 2 TSL1018

3 Electrical characteristics

guaranteed through correlation and by design. Table 3. Electrical characteristics for T amb = 25°C , VDD =+ 5 V , VSS =- 5 V , RL =1 0 kΩ, CL = 10pF

4 Package information

Table 4. TQFP48 ePad package mechanical data

Figure 44. TQFP48 ePad package drawing

5 Ordering information

6 Revision history

Table 5. Order codes 22-Mar-2007 1 Initial release. 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.