STM6780系列 2.188 V/ 可调 140ms 超低电压 双电压监控器 - SOT23-6
The STM6717/18/19/20 and STM6777/78/79/80 supervisors are a family of low-voltage/low-supply current processor micro or DSP supervisors, designed to monitor two or three system power supply voltages. They are targeted at applications such as set-top boxes STBs, portable, battery-powered systems, networking, and communication systems.
All device options have a push-button-type manual reset input MR. The STM6777/78/79/80 also includes an option which enables the user to delay the start of the manual reset process from 6 μs MRC pin left open or more with external capacitor. The delay is implemented by connecting the appropriately sized capacitor between the MRC pin and VSStypical 4 s delay with a 3.3 μF capacitor.
Two of the three supplies monitored VCC1and VCC2 have fixed customer-selectable, factory-trimmed thresholds VRST1and VRST2. The third voltage is monitored using an externally adjustable RSTIN threshold 0.626 V internal reference.
If any of the three monitored voltages drop below its factory-trimmed or adjustable thresholds, or if MRis asserted to logic low, a RSTis asserted driven low. Once asserted, RSTis maintained at low for a minimum delay period trec after ALL supplies rise above their respective thresholds and MRreturns to high. These devices are guaranteed to be in the correct reset output logic state when VCC1and/or VCC2is greater than 0.8 V.
These devices are available in standard 5-pin or 6-pin SOT23 packages.
**Key Features**
输出电流 20 mA
通道数 1
耗散功率 675 mW
阈值电压 2.188V,Adjustable
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 675 mW
电源电压Max 5.5 V
电源电压Min 0.8 V
安装方式 Surface Mount
引脚数 6
封装 SOT-23-6
长度 2.9 mm
宽度 1.6 mm
高度 1.15 mm
封装 SOT-23-6
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99