Advanced Analog Technology AAT1164C
The AAT1164/AAT1164B/AAT1164C is a triple-channel TFT LCD power solution that provides a step-up PWM controller, two high voltage LDO drivers (one for positive voltage and one for negative voltage), five operational amplifiers, and one high voltage switch up to 28V for TFT LCD display. The PWM controller consists of an on-chip voltage reference, oscillator, error amplifier, current sense circuit, comparator, under-voltage lockout protection and internal soft-start circuit. The thermal and power fault protection prevents internal circuit being damaged by excessive power.
| Part No. |
AAT1164C |
| Datasheet |
AAT1164C
Download
|
| Manufacturer |
 Advanced Analog Technology |
| Description |
TRIPLE-CHANNEL TFT LCD POWER SOLUTION |
| Buy |
Stock & Price
|
FEATURES
Built in 3A, 0.2Ω Switching NMOS Positive LDO Driver Up to 28V/5mA GENERAL DESCRIPTION
The high voltage LDO drivers generate two regulated output voltage (VOUT2 and VOUT3) set by external resistor dividers. VGH voltage does not activate until DLY voltage exceeds 1.25V. The AAT1164/AAT1164B/AAT1164C contains 4+1 operational amplifiers. VO1, VO2, VO4, and VO5 are for gamma corrections and VO3 is for VCOM. In the short circuit condition, operational amplifiers are capable of sourcing ±100mA current for VGAMMA, and ±200mA current for VCOM. With the minimal external components, the AAT1164/AAT1164B/AAT1164C offers a simple and economical solution for TFT LCD power. Negative LDO Driver Down to –14V/5mA 28V High Voltage Switch for VGH Internal Soft-Start Function 1.2MHz Fixed Switching Frequency 3 Channels Fault and Thermal Protection Low Dissipation Current QFN-32 Package Available 1 VCOM and 4 VGAMMA Operational Amplifiers PIN CONFIGURATION – 台灣類比科技股份有限公司 – Version 1.00 Page 1 of 24 – Advanced Analog Technology, Inc. – Advanced Analog Technology, Inc.
