MIC1557BM5 数据手册 - Micrel（迈瑞）

●类型Type| 555型,计时器/振荡器（单路） 555 Type, Timer/Oscillator (Single) \---|--- 计数Count| 频率Frequency| 5MHz 电源电压Voltage - Supply| 2.7V~18V 电源电流Current - Supply| 350µA Description & Applications| Features • +2.7V to +18V operation • Low current<1µA typical shutdown mode (MIC1557) 200µA typical (TRG and THR low) at 3V supply • Timing from microseconds to hours • “Zero” leakage trigger and threshold inputs • 50% square wave with one Resistor, one Capacitor • Threshold input precedence over trigger input • <15Ω output on resistance • No output cross-conduction current spikes • <0.005%/°C temperature stability • <0.055%/V supply stability • Small SOT-23-5 surface mount package Applications • Precision timer • Pulse generation • Sequential timing • Time-delay generation • Missing pulse detector • Micropower oscillator to 5MHz • Charge-pump driver • LED blinker • Voltage converter • Linear sweep generator • Variable frequency and duty cycle oscillator • Isolated feedback for power supplies 描述与应用| 特点 •+2.7 V至+18 V操作 •低电流 <典型值1μA关断模式（MIC1557） 200μA典型（TRG和THR低的），在3V电源 •从微秒到小时定时 •“零”泄漏触发阈值输入 •50％的方波，一个电阻，一个电容 •输入阈凌驾于触发输入 •<15Ω输出电阻 •无输出交叉传导电流尖峰 •<0.005％/°C的温度稳定性 •<0.055％/ V货源稳定 •小型SOT-23-5表面贴装封装 应用 •精密定时器 •脉冲生成 •顺序定时 •延时代 •脉冲丢失检测 •微振荡器到5MHz •电荷泵驱动器 •LED闪光灯 •电压转换器 •线性扫频发生器 •可变频率和占空比振荡器 •电源隔离反馈