TSL1014 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Features

■ Wide supply voltage: 5.5V to 16.8V ■ Low operating current: 4.5mA typical at 25°C ■ Gain bandwidth product: 1MHz ■ High current com amplifier: ±100mA output current ■ Industrial temperature range: -40°C to +85°C ■ Small package: TQFP48 Application ■ TFT liquid crystal display (LCD)

Description

The TSL1014 is composed of 14 + 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 ±100mA. Amplifiers A and B feature positive single supply inputs for common mode voltage behavior. The amplifiers C to N inclusive, and the COM amplifier, feature negative single-supply inputs and are dedicated to the highest and lowest gamma voltages. The TSL1014 is fully characterized and guaranteed over a wide industrial temperature range (-40 to +85°C). 7x7 m m T Q F P 4 8 VSS VDD 13 14 15 16 17 18 19 20 21 22 23 24 48 44 43 42 41 40 39 38 3746 45 A B C D E F G Com N M L K J I H VDD VSS VSSVDD VSSVDD VSS VDD VSSVDD VSS VDD 13 14 15 16 17 18 19 20 21 22 23 24 48 44 43 42 41 40 39 38 3746 45 A B C D E F G Com N M L K J I H VDD VSS VSSVDD VSSVDD VSS VDD VSSVDD Pin connections (top view)

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 = 85°C/W for the TQFP48 package.
  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. Table 2. Operating conditions

2 Typical application schematics

Figure 1. A typical application schematic for the TSL1014

  • Amplifiers A & B have their input voltage in the range VSS+1.5V to VDD. This is why they must be used for high level gamma correction voltages.
  • Amplifiers C to N have their input voltage in the range VSS 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 to VDD-1.5V. COM A B C D E F G H I J K L M N VSS VDD R10 R11 R12 R13 R14 Gnd Gnd Com Ref. Voltage Vcc + Cs 10uF Gnd Gamma 0 Gamma 1 Gamma 2 Gamma 3 Gamma 4 Gamma 5 Gamma 6 Gamma 7 Gamma 8 Gamma 9 Gamma 10 Gamma 11 Gamma 12 Gamma 13 VCOM To colunm driver

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

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 package mechanical data

5 Ordering information

6 Revision history

Table 5. Order codes 1-Jul-2005 1 Initial release - Product in full production. Lead temperature corrected in Table 1 on page 2. Notes added on ESD in Table 1 on page 2. Maximum operating supply voltage increased in Table 2 on page 2. Input voltage parameters added in Table 2 on page 2. VOL limits changed for Buffers C to L in Table 3 on page 4.