数据手册：MAX1664 低噪声集成方案，为有源矩阵TFT LCD显示器供电 .pdf [英文Rev.0(PDF,264kB)]
{状况：生产中。}The MAX1664 integrates power-supply and backplane drive circuitry for active-matrix thin-film-transistor (TFT) liquid crystal displays. Included are a single-output, pulse-width-modulation boost converter (0.25Ω switch), a dual-output (positive and negative) gate-driver supply using one inductor, an LCD backplane driver, and a simple phase-locked loop to synchronize all three outputs. High switching frequency (1MHz nominal) and phase-locked operation allow the use of small, minimum-height external components while maintaining low output noise. A +2.8V to +5.5V input voltage range allows operation with any logic supply. Output voltages are adjustable to +5.5V (DC-DC 1) and to +28V and-10V (DC-DC 2). The negative output voltage can be adjusted to -20V with additional components. Also included are a logic-level shutdown and a "Ready" output (RDY) that signals when all three outputs are in regulation. The boost-converter operating frequency can be set at 16, 24, or 32 times the backplane clock. This flexibility allows a high DC-DC converter frequency to be used with LCD backplane clock rates ranging from 20kHz to 72kHz. The MAX1664 is supplied in a 1.1mm-high TSSOP package.
产品关键特性
| 应用与使用范围
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典型工作电路
芯片订购型号
| 订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
| MAX1664CUP | 生产中 | TSSOP；20引脚；45.2mm²封装信息 | 0°C至+70°C | RoHS/无铅：否材料分析 |
| MAX1664CUP-T | 生产中 | TSSOP；20引脚封装信息 | 0°C至+70°C | 参考数据资料 |
| MAX1664EUP | 生产中 | TSSOP；20引脚；45.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX1664EUP+ | 生产中 | TSSOP；20引脚；45.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1664EUP+T | 生产中 | TSSOP；20引脚；45.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1664EUP-T | 生产中 | TSSOP；20引脚；45.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
功能接近器件
| MAX6950 | 串行接口、+2.7V至+5.5V、5位或8位LED显示驱动器 |
| MAX6951 | 串行接口、+2.7V至+5.5V、5位或8位LED显示驱动器 |
| MAX6956 | 2线接口、2.5V至5.5V、20端口或28端口LED显示驱动器及输入/输出扩展器 |
| MAX6957 | 4线接口、2.5V至5.5V、20端口或28端口LED显示驱动器及输入/输出扩展器 |
| MAX6958 | 2线接口、3V至5.5V、4位、9段LED显示驱动器，带有键扫描 |
| MAX6959 | 2线接口、3V至5.5V、4位、9段LED显示驱动器，带有键扫描 |
| MAX7219 | 串行接口、8位、LED显示驱动器 |
| MAX7221 | 串行接口、8位、LED显示驱动器 |
- MAX1664 : 有源点阵液晶显示器(AMLCD)电源 MAX1664
