特性

Supply Voltage from 1.8V to 5.5V

Current Consumption at 2.5V 35nA (typ)

Selectable Time Intervals 100ms to 7200s

Timer Accuracy 1% (typ)

Resistor Selectable Time Interval

Watchdog Functionality

Manual Reset

描述

The TPL5010 Nano Timer is a low power timer with a watchdog feature ideal for system wake up in duty cycled or battery powered applications. In such systems the C timer can be used for system wake-up, but if the timer sleep current is high, up to 60-80% of the total system current can be consumed by the C timer in this sleep mode. Consuming only 35nA, the TPL5010 can replace the functionality of the integrated μC timer and allow the C to be placed in a much lower power mode. Such power savings enable the use of significantly smaller batteries making it well suited for energy harvesting or wireless sensor applications. The TPL5010 provides selectable timing intervals from 100ms to 7200s and is designed for interrupt-driven applications. Some standards (such as EN50271) require implementation of a watchdog for safety and the TPL5010 realizes this watchdog function at almost no additional power consumption. The TPL5010 is available in a 6-pin SOT23 package.

应用

便携式医疗仪表

化学/气体传感器

智能占位传感

流量计

热量计

现场发送器：压力传感器

破损玻璃检测器

便携式无线传感器系统

安防系统

水表

温度传感器/控制器（采用 Modbus）

燃气表

现场发送器：温度传感器

能量收集