EL5228 ® Data Sheet PRELIMINARY March 25, 2004 FN7368 VCOM with Dual Gamma Buffer Features The EL5228 integrates a high power VCOM amplifier with dual gamma reference voltage buffers. With 180mA peak and 65mA typical output current, the VCOM amplifier is suitable for all sizes of LCD displays. The dual gamma buffers can output 30mA typical, 120mA peak and feature a bandwidth of 12MHz and a slew rate of 15V/µs. The VCOM amplifier has a 44MHz bandwidth and 80V/µs slew rate. • High power VCOM amplifier - 180mA peak (65mA typ.) output current - 55MHz bandwidth - 75V/µs slew rate The EL5228 operates from just 3.5mA typical supply current and is packaged in the high-power DFN-10 package. It is specified for operation over the -40°C to +85°C temperature range. • Dual gamma buffers - 120mA peak (30mA typ.) output current - 12MHz bandwidth - 10V/µs slew rate • Just 3.5mA supply current • Small DFN-10 package Applications Pinout • TFT-LCD displays EL5228 (10-PIN DFN) TOP VIEW TOP VIEW VOUTA 1 • Notebook displays 10 VOUTB 9 VINB VINA 2 VDD 3 • Flat panel monitors THERMAL PAD 8 VSS VINC+ 4 7 NC VINC- 5 6 VOUTC 1 • LCD-TVs Ordering Information PART NUMBER PACKAGE TAPE & REEL PKG. DWG. # EL5228IL 10-Pin DFN - MDP0047 EL5228IL-T13 10-Pin DFN 13” MDP0047 EL5228IL-T7 10-Pin DFN 7” MDP0047 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners. EL5228 Absolute Maximum Ratings (TA = 25°C) VCC Supply Voltage between VS and GND . . . . . . . . . . . . . . Supply Voltage between VSD and GND . . . . . . . . . . . . . . . . . . Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . . Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . TBD TBD TBD TBD Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Electrical Specifications PARAMETER VS+ = +15V, VS- = 0V, RL = 1kΩ to 7.5V, TA = 25°C unless otherwise specified. DESCRIPTION CONDITION MIN TYP MAX UNIT 14 mV GAMMA BUFFER INPUT CHARACTERISTICS VOS Input Offset Voltage VCM = 7.5V 2 TCVOS Average Offset Voltage Drift (Note 1) 5 IB Input Bias Current VCM= 7.5V 2 RIN Input Impedance 1 GΩ CIN Input Capacitance 2 pF AV Voltage Gain 0.5 ≤ VOUT ≤ 14.5V, RL = 10kΩ 0.995 µV/°C 50 nA 1.005 V/V 150 mV GAMMA BUFFER OUTPUT CHARACTERISTICS VOL Output Swing Low IL = -5mA VOH Output Swing High IL = 5mA ISC Short Circuit Current Short to GND (Note 2) 80 14.85 14.92 V ±80 ±120 mA 7 10 V/µs GAMMA BUFFER DYNAMIC PERFORMANCE SR Slew Rate (Note 3) 1V ≤ VOUT ≤14V, 20% to 80%, RL = 10kΩ tS Settling to +0.1% VO = 2V Step 500 ns BW -3dB Bandwidth RL = 10kΩ, CL = 10pF 12 MHz CS Channel Separation f = 5MHz 75 dB VCM = 7.5V 3 VCOM AMPLIFIER INPUT CHARACTERISTICS VOS Input Offset Voltage 15 TCVOS Average Offset Voltage Drift (Note 4) IB Input Bias Current RIN Input Impedance 1 GΩ CIN Input Capacitance 2 pF CMIR Common-Mode Input Range CMRR Common-Mode Rejection Ratio for VIN from -0.5V to 15.5V 53 72 dB AVOL Open-Loop Gain 0.5V ≤ VOUT ≤ 14.5V 62 70 dB 7 VCM = 7.5V 2 -0.5 mV µV/°C 60 +15.5 nA V VCOM AMPLIFIER OUTPUT CHARACTERISTICS VOL Output Swing Low IL = -5mA VOH Output Swing High IL = 5mA ISC IOUT 80 mV 14.92 V Short-circuit Current ±180 mA Output Current ±65 mA 2 14.85 150 EL5228 Electrical Specifications PARAMETER VS+ = +15V, VS- = 0V, RL = 1kΩ to 7.5V, TA = 25°C unless otherwise specified. DESCRIPTION CONDITION MIN TYP MAX UNIT VCOM AMPLIFIER DYNAMIC PERFORMANCE SR Slew Rate (Note 5) 1V ≤ VOUT ≤ 14V, 20% to 80% 75 V/µs tS Settling to +0.1% (AV = +1) (AV = +1), VO = 2V step 80 ns BW -3dB Bandwidth 60 MHz GBWP Gain-Bandwidth Product 32 MHz PM Phase Margin 50 ° dG Differential Gain (Note 6) RF = RG = 1kΩ and VOUT = 1.4V 0.16 % dP Differential Phase (Note 6) RF = RG = 1kΩ and VOUT = 1.4V 0.22 ° 80 dB POWER SUPPLY PERFORMANCE PSRR Power Supply Rejection Ratio VS is moved from 4.5V to 15.5V IS Supply Current No load 60 3.5 5 mA NOTES: 1. Measured over the operating temperature range 2. Parameter is guaranteed (but not test) by design and characterization data 3. Slew rate is measured on rising and falling edges 4. Measured over operating temperature range 5. Slew rate is measured on rising and falling edges 6. NTSC signal generator used Typical Application Diagram VS+ INA OUTA INB OUTB INC+ + INC- - OUTC VS- All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. 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