MAXIM INTEGRATED PRODUCTS MAX749CSA+T 芯片, 特殊功能
The is a digitally adjustable LCD bias supply in 8 pin NSOIC package. It generates negative LCD bias contrast voltages from 2V to 6V inputs. Full-scale output voltage can be scaled to -100V or greater and is digitally adjustable in 64 equal steps by an internal digital to analogue converter DAC. Only seven small surface mount components are required to build a complete supply. The output voltage can also be adjusted using a PWM signal or a potentiometer. A unique current limited control scheme reduces supply current and maximizes efficiency while a high switching frequency up to 500KHz minimizes size of external components. Quiescent current is only 60µA max and is reduced to under 15µA in shutdown mode. While shut down, IC retains voltage set point, simplifying software control. It drives either an external P-channel MOSFET or a PNP transistor. It is used in notebook, laptop & palmtop computers, personal digital assistants & communicating computers.
电源电压DC 2.00V min
供电电流 60 µA
针脚数 8
耗散功率 727 mW
工作温度Max 70 ℃
工作温度Min 0 ℃
电源电压 2V ~ 6V
电源电压Max 6 V
电源电压Min 2 V
安装方式 Surface Mount
引脚数 8
封装 NSOIC-8
封装 NSOIC-8
工作温度 0℃ ~ 70℃
产品生命周期 Unknown
包装方式 Cut Tape CT
制造应用 Power Management, 电源管理, LCD 显示器, 消费电子产品, 便携式器材, Consumer Electronics, Portable Devices
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
MAX749CSA+T Maxim Integrated 美信 | 当前型号 | 当前型号 |
MAX749ESA+T 美信 | 完全替代 | MAX749CSA+T和MAX749ESA+T的区别 |
MAX749CSA 美信 | 完全替代 | MAX749CSA+T和MAX749CSA的区别 |
MAX749CSA-T 美信 | 完全替代 | MAX749CSA+T和MAX749CSA-T的区别 |