G1575 Global Mixed-mode Technology Inc. 14+1 Channel Voltage Buffers for TFT LCD Features General Description Supply Operation Range : 6.5V to 19.5V The G1575 consists of 14+1 channel buffers target toward the needs of thin film transistor liquid crystal display (TFT LCD). This device incorporates one Vcom buffer and 14 gamma buffers. Each buffer is capable of driving heavy capacitive loads and offering large current loading (Vcom: 100mA, Gammas: 30mA). 14+1 Channels : --- 14 Gamma Buffers with each Continuous Output Current of ±30mA (MAX) --- 1 Vcom Buffer with Continuous Output Current of ±100mA (MAX) Supply Current at VDD=10V : 11mA (TYP) Unity Gain Vcom Buffer Capable of Driving Large Capacitive Loads Input Common Mode Range beyond the Rails Rail-to-Rail Output Voltage Swing Peak Output Current : --- Gamma Buffer : ±120mA --- Vcom Buffer : ±300mA TQFP7X7-48 & TQFP7X7-48 (FD) Package Available The G1575 is available in the TQFP7X7-48 and TQFP7X7-48 (FD) package. Ordering Information ORDER MARKING NUMBER Applications PACKAGE (Green) TQFP7X7-48 G1575H71U 1575 -40°C to 85°C G1575F71U 1575 -40°C to 85°C TQFP7X7-48 (FD) Note : H7 : TQFP7X7-48 1: Bonding Code U: Tape & Reel TFT-LCD monitors LCD televisions TEMP. RANGE F7 : TQFP7X7-48 (FD) NC INCOM Ni Mi 38 37 NC 41 39 VDD NC 43 40 VSS 44 42 VSS VDD 46 45 No OUTCOM 48 Ni Mi 38 37 47 NC INCOM NC 41 39 NC 42 40 VSS VDD VDD VSS 45 43 OUTCOM 46 44 No 48 47 Pin Configuration Mo 1 36 Li Mo 1 36 Li Lo 2 35 Ki Lo 2 35 Ki Ko 3 34 Ji Ko 3 34 Ji Jo 4 33 Ii Jo 4 33 Ii Io 5 32 Hi Io 5 32 Hi Ho VSS 6 31 VSS 6 7 30 VDD Ho VSS VDD 8 29 Gi VDD 8 29 Gi Go 9 28 Fi Go 9 28 Fi Thermal Pad 7 31 VSS 30 VDD Bi 24 Ai 23 VDD 22 Ao 20 VSS 21 VSS 19 Bo 18 NC 17 NC 16 Co 13 NC 14 G1575 TQFP7X7-48 VDD 15 Ci Bi 24 25 Ai 23 Do 12 VDD 22 Ci VSS 21 25 Ao 20 Di Do 12 VSS 19 Ei 26 Bo 18 27 Eo 11 NC 17 Fo 10 Di NC 16 Ei 26 VDD 15 27 Co 13 NC 14 Fo 10 Eo 11 G1575 TQFP7X7-48 (FD) Note: Recommend connecting the Thermal Pad to the VSS for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.5 Oct 22, 2009 1