R5107 系列
看门狗定时器,配置手动复位,带VD功能
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概述
The R5107 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip.
R5107 monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs. The output delay time of the VD and watchdog timeout period/reset time can be adjusted by an external capacitor with a high degree of accuracy. The R5107 is equipped with the function that inhibits clock monitoring of the WDT (INH) and manual reset (MR) that also stops the VD.
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规格
消费 工业 车载 输入电压范围 0.9 V to 6.0 V (7.0 V) 工作温度范围 -40°C to 105°C (125°C) -40°C to 125°C (150°C) -40°C to 125°C (150°C)
-40°C to 105°C (150°C)电源电流 Typ. 11 µA 超时时间 Typ. 310 ms (CTW = 0.1 µF) 超时时间精度 ±33% 重置信号时间 Typ. 34 ms (CTW = 0.1 µF) 封装 SSOP-8G VD检测器阈值范围 1.5 V to 5.5 V (0.1 V step) VD检测器阈值精度 ±1.0% VD检测器阈值温度系数 Typ. ±100 ppm/°C VD释放输出延迟时间 Typ. 370 ms (CD = 0.1 µF) VD Release Delay Time Accuracy ±16% ±18% ±18% (−40 °C ≤ Ta ≤ 125°C)
±16% (−40 °C ≤ Ta ≤ 105°C) -
技术资料
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Typical Application
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Timing Chart
* VTCD : Threshold voltage of CD pin when a power-on reset pulse inverting.
* Vref2H : CTW pin voltage at the end of WDT timeout period.
* Vref2L : CTW pin voltage at the begin of WDT timeout period.
* VDDL : 0.9 V (Max.)
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