Product Summary

The AAT1168 is a triple-channel TFT LCD power solution that provides a step-up PWM controller, two LDO drivers (one for positive high voltage and one for negative voltage), five operational amplifiers, and one high voltage switch up to 28V for TFT LCD display.

Parametrics

AAT1168 absolute maximum ratings: (1)VDD to GND: 7 V; (2)VDD1, SW to GND (for AAT1168/AAT1168B): 14.5 V; (3)VDD1, SW to GND (for AAT1168A): 25 V; (4)VOUT3, OUT3, VGH to GND (for AAT1168/AAT1168B): 28 V; (5)VOUT3, OUT3, VGH to GND (for AAT1168A): 40 V; (6)OUT2 to GND: -14 V; (7)Input Voltage 1 (IN1, IN2, IN3, DLY, CTL): VDD +0.3 V; (8)Input Voltage 2 (VI1+, VI1-, VI2+, VI2- , VI3+, VI3- , VI4+, VI4- , VI5+, VI5-): VH1+0.3 V; (9)Output Voltage 1 (EO, VREF ): VDD +0.3 V; (10)Output Voltage 2 (ADJ, VO1, VO2, VO3, VO4, VO5): VH1+0.3 V; (11)Operating Free-Air Temperature Range: –40 ℃ to +85 ℃; (12)Storage Temperature Range: –45 ℃ to +125 ℃; (13)Maximum Junction Temperature: +125 ℃.

Features

AAT1168 features: (1)Built in 3A, 0.2Ω Switching NMOS; (2)Positive LDO Driver Up to 28V/5mA; (3)Negative LDO Driver Down to -14V/5mA; (4)1 VCOM and 4 VGAMMA Operational Amplifiers; (5)28V High Voltage Switch for VGH; (6)Internal Soft-Start Function; (7)1.2MHz Fixed Switching Frequency; (8)3 Channels Fault and Thermal Protection; (9)Low Dissipation Current; (10)QFN-32 Package Available.

Diagrams

AAT1168 pin configuration diagram

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