R8358 系列

看门狗定时器，配置SENSE引脚，带VD功能

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概述

The R8358 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip.

R8358 monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs. R8358 is equipped with the function that inhibits clock monitoring of the WDT (INH). Since R8358 has a SENSE pin for monitoring voltage separately from the power pin, its reset signal does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained.

规格

	车载
输入电压范围	1.5 V to 6.0 V (7.0 V)
工作温度范围	-40°C to 125°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% (-40°C ≤ Ta ≤ 110°C)
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 (-40°C ≤ Ta ≤ 110°C)
VD释放输出延迟时间	Typ. 350 ms (CD = 0.1 µF)
VD Release Delay Time Accuracy	±16% (-40°C ≤ Ta ≤ 110°C)